possible deadlock in start_creating

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: ef78e5ec9214 ia64: export node_distance function
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11d3354d400000
kernel config: https://syzkaller.appspot.com/x/.config?x=c94f9f0c0363db4b
dashboard link: https://syzkaller.appspot.com/bug?extid=a2b1e02e7d41064cfe83
compiler: gcc (GCC) 8.0.1 20180413 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+a2b1e0...@syzkaller.appspotmail.com


======================================================
WARNING: possible circular locking dependency detected
4.20.0-rc4+ #352 Not tainted
------------------------------------------------------
syz-executor4/8129 is trying to acquire lock:
000000003a2e44fb (&sb->s_type->i_mutex_key#4){++++}, at: inode_lock
include/linux/fs.h:757 [inline]
000000003a2e44fb (&sb->s_type->i_mutex_key#4){++++}, at:
start_creating+0xb1/0x200 fs/debugfs/inode.c:307

but task is already holding lock:
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
00000000ce7abeb2 (relay_channels_mutex){+.+.}, at: relay_open+0x478/0xac0
kernel/relay.c:595

which lock already depends on the new lock.

kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'

the existing dependency chain (in reverse order) is:

-> #3 (relay_channels_mutex){+.+.}:
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0x166/0x16f0 kernel/locking/mutex.c:1072
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
relay_prepare_cpu+0x2a/0x28b kernel/relay.c:525
cpuhp_invoke_callback+0x35d/0x2100 kernel/cpu.c:167
cpuhp_up_callbacks kernel/cpu.c:584 [inline]
_cpu_up+0x290/0x560 kernel/cpu.c:1139
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
do_cpu_up+0x1ca/0x210 kernel/cpu.c:1173
cpu_up+0x18/0x20 kernel/cpu.c:1181
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
smp_init+0x1a3/0x1be kernel/smp.c:578
kernel_init_freeable+0x431/0x6b9 init/main.c:1146
kernel_init+0x11/0x1ae init/main.c:1071
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

-> #2 (cpu_hotplug_lock.rw_sem){++++}:
percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36
[inline]
percpu_down_read include/linux/percpu-rwsem.h:59 [inline]
cpus_read_lock+0x3e/0xd0 kernel/cpu.c:287
__static_key_slow_dec kernel/jump_label.c:239 [inline]
static_key_slow_dec+0x57/0xa0 kernel/jump_label.c:254
sw_perf_event_destroy+0x8b/0x140 kernel/events/core.c:8172
_free_event+0x414/0x1660 kernel/events/core.c:4446
put_event+0x48/0x60 kernel/events/core.c:4532
perf_mmap_close+0x62f/0x1220 kernel/events/core.c:5515
remove_vma+0xb1/0x180 mm/mmap.c:181
remove_vma_list mm/mmap.c:2574 [inline]
__do_munmap+0x751/0xf80 mm/mmap.c:2817
do_munmap mm/mmap.c:2825 [inline]
mmap_region+0x6a7/0x1cd0 mm/mmap.c:1729
do_mmap+0xa22/0x1230 mm/mmap.c:1559
do_mmap_pgoff include/linux/mm.h:2328 [inline]
vm_mmap_pgoff+0x213/0x2c0 mm/util.c:350
ksys_mmap_pgoff+0x4da/0x660 mm/mmap.c:1609
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline]
__x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #1 (&mm->mmap_sem){++++}:
__might_fault+0x15e/0x1e0 mm/memory.c:4360
_copy_to_user+0x30/0x110 lib/usercopy.c:25
copy_to_user include/linux/uaccess.h:155 [inline]
filldir64+0x23f/0x3e0 fs/readdir.c:281
dir_emit_dot include/linux/fs.h:3465 [inline]
dir_emit_dots include/linux/fs.h:3476 [inline]
dcache_readdir+0x13a/0x620 fs/libfs.c:192
iterate_dir+0x48c/0x5d0 fs/readdir.c:51
ksys_getdents64+0x228/0x450 fs/readdir.c:314
__do_sys_getdents64 fs/readdir.c:333 [inline]
__se_sys_getdents64 fs/readdir.c:330 [inline]
__x64_sys_getdents64+0x73/0xb0 fs/readdir.c:330
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&sb->s_type->i_mutex_key#4){++++}:
lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844
down_write+0x8a/0x130 kernel/locking/rwsem.c:70
inode_lock include/linux/fs.h:757 [inline]
start_creating+0xb1/0x200 fs/debugfs/inode.c:307
__debugfs_create_file+0x63/0x400 fs/debugfs/inode.c:347
debugfs_create_file+0x57/0x70 fs/debugfs/inode.c:399
blk_create_buf_file_callback+0x33/0x40 kernel/trace/blktrace.c:444
relay_create_buf_file+0xf6/0x150 kernel/relay.c:428
relay_open_buf.part.10+0x753/0xb20 kernel/relay.c:455
relay_open_buf kernel/relay.c:447 [inline]
relay_open+0x5e5/0xac0 kernel/relay.c:597
do_blk_trace_setup+0x4fe/0xdb0 kernel/trace/blktrace.c:532
__blk_trace_setup+0xd5/0x180 kernel/trace/blktrace.c:577
blk_trace_ioctl+0x17a/0x2f0 kernel/trace/blktrace.c:716
blkdev_ioctl+0x9e9/0x21b0 block/ioctl.c:591
block_ioctl+0xee/0x130 fs/block_dev.c:1883
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:509 [inline]
do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696
ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe

other info that might help us debug this:

Chain exists of:
&sb->s_type->i_mutex_key#4 --> cpu_hotplug_lock.rw_sem -->
relay_channels_mutex

Possible unsafe locking scenario:

CPU0 CPU1
---- ----
lock(relay_channels_mutex);
lock(cpu_hotplug_lock.rw_sem);
lock(relay_channels_mutex);
lock(&sb->s_type->i_mutex_key#4);

*** DEADLOCK ***

2 locks held by syz-executor4/8129:
#0: 00000000fc7e8d92 (&q->blk_trace_mutex){+.+.}, at:
blk_trace_ioctl+0xeb/0x2f0 kernel/trace/blktrace.c:711
#1: 00000000ce7abeb2 (relay_channels_mutex){+.+.}, at:
relay_open+0x478/0xac0 kernel/relay.c:595

stack backtrace:
CPU: 1 PID: 8129 Comm: syz-executor4 Not tainted 4.20.0-rc4+ #352
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
print_circular_bug.isra.35.cold.54+0x1bd/0x27d
kernel/locking/lockdep.c:1221
check_prev_add kernel/locking/lockdep.c:1863 [inline]
check_prevs_add kernel/locking/lockdep.c:1976 [inline]
validate_chain kernel/locking/lockdep.c:2347 [inline]
__lock_acquire+0x3399/0x4c20 kernel/locking/lockdep.c:3341
lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844
down_write+0x8a/0x130 kernel/locking/rwsem.c:70
inode_lock include/linux/fs.h:757 [inline]
start_creating+0xb1/0x200 fs/debugfs/inode.c:307
__debugfs_create_file+0x63/0x400 fs/debugfs/inode.c:347
debugfs_create_file+0x57/0x70 fs/debugfs/inode.c:399
blk_create_buf_file_callback+0x33/0x40 kernel/trace/blktrace.c:444
relay_create_buf_file+0xf6/0x150 kernel/relay.c:428
relay_open_buf.part.10+0x753/0xb20 kernel/relay.c:455
relay_open_buf kernel/relay.c:447 [inline]
relay_open+0x5e5/0xac0 kernel/relay.c:597
do_blk_trace_setup+0x4fe/0xdb0 kernel/trace/blktrace.c:532
__blk_trace_setup+0xd5/0x180 kernel/trace/blktrace.c:577
blk_trace_ioctl+0x17a/0x2f0 kernel/trace/blktrace.c:716
blkdev_ioctl+0x9e9/0x21b0 block/ioctl.c:591
block_ioctl+0xee/0x130 fs/block_dev.c:1883
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:509 [inline]
do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696
ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713
__do_sys_ioctl fs/ioctl.c:720 [inline]
__se_sys_ioctl fs/ioctl.c:718 [inline]
__x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f243482fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 00000000200000c0 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f24348306d4
R13: 00000000004bea8f R14: 00000000004cf0c8 R15: 00000000ffffffff
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg0] tag#7103 FAILED Result: hostbyte=DID_ABORT
driverbyte=DRIVER_OK
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
sd 0:0:1:0: [sg0] tag#7103 CDB: Read Generation
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg0] tag#7103 CDB[00]: 29 0e 1a 2a 09 65 02 9b 0c df 02 77 8d
05 b6 86
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
sd 0:0:1:0: [sg0] tag#7103 CDB[10]: 3a 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00
sd 0:0:1:0: [sg0] tag#7103 CDB[20]: 00 00 00 00 00
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000e218925e): kobject_uevent_env
kobject: 'loop1' (00000000e218925e): fill_kobj_path: path
= '/devices/virtual/block/loop1'
kobject: 'loop0' (00000000f89c58f8): kobject_uevent_env
kobject: 'loop0' (00000000f89c58f8): fill_kobj_path: path
= '/devices/virtual/block/loop0'
kobject: 'loop2' (0000000097a4bd56): kobject_uevent_env
kobject: 'loop2' (0000000097a4bd56): fill_kobj_path: path
= '/devices/virtual/block/loop2'
kobject: 'loop4' (00000000c4ca0f77): kobject_uevent_env
kobject: 'loop4' (00000000c4ca0f77): fill_kobj_path: path
= '/devices/virtual/block/loop4'
kobject: 'kvm' (000000006a23952d): kobject_uevent_env
kobject: 'kvm' (000000006a23952d): fill_kobj_path: path
= '/devices/virtual/misc/kvm'
kobject: 'loop3' (000000007859c2f3): kobject_uevent_env
kobject: 'loop3' (000000007859c2f3): fill_kobj_path: path
= '/devices/virtual/block/loop3'
sd 0:0:1:0: [sg_rq_end_io] Sense Key : Illegal Request [current]
sd 0:0:1:0: [sg_rq_end_io] Add. Sense: Invalid command operation code


---
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Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.