[v6.6] INFO: task hung in gfs2_jhead_process_page

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 3a8ababb8b6a Linux 6.6.101
git tree: linux-6.6.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17da05a2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=a2bd95b6de4839b7
dashboard link: https://syzkaller.appspot.com/bug?extid=60b5e90b6d2c52328fb9
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/f06c672f5fa8/disk-3a8ababb.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9af9b7afcdc5/vmlinux-3a8ababb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/351a55aafa77/bzImage-3a8ababb.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+60b5e9...@syzkaller.appspotmail.com

INFO: task kworker/1:2:54 blocked for more than 144 seconds.
Not tainted 6.6.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:20632 pid:54 ppid:2 flags:0x00004000
Workqueue: gfs2_recovery gfs2_recover_func
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x14d2/0x44d0 kernel/sched/core.c:6700
schedule+0xbd/0x170 kernel/sched/core.c:6774
io_schedule+0x80/0xd0 kernel/sched/core.c:9023
folio_wait_bit_common+0x6eb/0xf70 mm/filemap.c:1329
folio_wait_locked include/linux/pagemap.h:1149 [inline]
gfs2_jhead_process_page+0x17a/0x700 fs/gfs2/lops.c:477
gfs2_find_jhead+0xbe5/0xd20 fs/gfs2/lops.c:594
gfs2_recover_func+0x688/0x1c60 fs/gfs2/recovery.c:460
process_one_work kernel/workqueue.c:2634 [inline]
process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
INFO: task syz.4.621:8811 blocked for more than 145 seconds.
Not tainted 6.6.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.621 state:D stack:25008 pid:8811 ppid:7136 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x14d2/0x44d0 kernel/sched/core.c:6700
schedule+0xbd/0x170 kernel/sched/core.c:6774
bit_wait+0x11/0xd0 kernel/sched/wait_bit.c:199
__wait_on_bit+0xac/0x2d0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x123/0x170 kernel/sched/wait_bit.c:64
wait_on_bit include/linux/wait_bit.h:76 [inline]
gfs2_recover_journal+0xda/0x130 fs/gfs2/recovery.c:577
init_journal+0x17c5/0x2260 fs/gfs2/ops_fstype.c:833
init_inodes+0xdb/0x320 fs/gfs2/ops_fstype.c:886
gfs2_fill_super+0x1815/0x1f80 fs/gfs2/ops_fstype.c:1266
get_tree_bdev+0x3e4/0x510 fs/super.c:1591
gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1344
vfs_get_tree+0x8c/0x280 fs/super.c:1764
do_new_mount+0x24b/0xa40 fs/namespace.c:3371
do_mount fs/namespace.c:3711 [inline]
__do_sys_mount fs/namespace.c:3920 [inline]
__se_sys_mount+0x2da/0x3c0 fs/namespace.c:3897
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6839b9038a
RSP: 002b:00007f683aa53e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f683aa53ef0 RCX: 00007f6839b9038a
RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007f683aa53eb0
RBP: 0000200000000140 R08: 00007f683aa53ef0 R09: 0000000002810000
R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80
R13: 00007f683aa53eb0 R14: 0000000000038014 R15: 00002000000001c0
</TASK>

Showing all locks held in the system:
2 locks held by ksoftirqd/1/22:
1 lock held by khungtaskd/29:
#0: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
#0: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:786 [inline]
#0: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x290 kernel/locking/lockdep.c:6633
2 locks held by kworker/1:2/54:
#0: ffff888018732938 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2609 [inline]
#0: ffff888018732938 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_scheduled_works+0x957/0x15b0 kernel/workqueue.c:2711
#1: ffffc90000bf7d00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2609 [inline]
#1: ffffc90000bf7d00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_scheduled_works+0x957/0x15b0 kernel/workqueue.c:2711
2 locks held by getty/5554:
#0: ffff888031b600a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x425/0x1380 drivers/tty/n_tty.c:2217
5 locks held by syz-executor/7438:
#0: ffffffff8cd35b78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#0: ffffffff8cd35b78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x448/0x830 kernel/rcu/tree_exp.h:1004
#1: ffff8880b8e3c458 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
#2: ffff8880b8e288c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x39c/0x6d0 kernel/sched/psi.c:998
#3: ffff88802d4ba818 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:522 [inline]
#3: ffff88802d4ba818 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0x61/0x10b0 kernel/sched/core.c:4233
#4: ffff8880b8e3c458 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
1 lock held by syz.4.621/8811:
#0: ffff88805fd020e0 (&type->s_umount_key#92){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88805fd020e0 (&type->s_umount_key#92){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88805fd020e0 (&type->s_umount_key#92){+.+.}-{3:3}, at: get_tree_bdev+0x344/0x510 fs/super.c:1589
1 lock held by syz.6.1014/10329:

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
<TASK>
dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106
nmi_cpu_backtrace+0x39b/0x3d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x17a/0x2f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf41/0xf80 kernel/hung_task.c:379
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7721 Comm: udevd Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:_compound_head include/linux/page-flags.h:246 [inline]
RIP: 0010:virt_to_folio include/linux/mm.h:1280 [inline]
RIP: 0010:check_heap_object mm/usercopy.c:192 [inline]
RIP: 0010:__check_object_size+0x14b/0xa30 mm/usercopy.c:251
Code: f7 e8 b9 27 52 ff 49 89 c7 49 c1 ef 06 49 83 e7 c0 49 bc 08 00 00 00 00 ea ff ff 4d 01 fc 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 e7 e8 eb fb f2 ff 4d 8b 24 24 4c 89 e6 48 83 e6 01 31
RSP: 0018:ffffc90003bb7d08 EFLAGS: 00000246
RAX: 1ffffd4000275b11 RBX: 0000000000000fe0 RCX: ffff88802d721e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: ffffea00013ad888
R13: dffffc0000000000 R14: ffff88804eb62220 R15: 00000000013ad880
FS: 00007f851428d880(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff236183418 CR3: 0000000029bd3000 CR4: 00000000003506f0
Call Trace:
<TASK>
check_object_size include/linux/thread_info.h:215 [inline]
strncpy_from_user+0x96/0x2e0 lib/strncpy_from_user.c:137
getname_flags+0xf6/0x500 fs/namei.c:151
user_path_at_empty+0x2c/0x60 fs/namei.c:2908
do_readlinkat+0xd8/0x480 fs/stat.c:494
__do_sys_readlink fs/stat.c:527 [inline]
__se_sys_readlink fs/stat.c:524 [inline]
__x64_sys_readlink+0x7f/0x90 fs/stat.c:524
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8513b153a7
Code: 00 00 90 48 83 ec 10 48 63 ff 45 31 c9 45 31 c0 6a 00 31 c9 e8 8a 20 f9 ff 48 83 c4 18 c3 0f 1f 44 00 00 b8 59 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 21 ba 0d 00 f7 d8 64 89 02 48
RSP: 002b:00007fff82bb15d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 0000563b00559570 RCX: 00007f8513b153a7
RDX: 0000000000000400 RSI: 00007fff82bb1a90 RDI: 0000563b00559570
RBP: 0000563b00559589 R08: 0000000000001e90 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000246 R12: 00007fff82bb1a90
R13: 00007fff82bb1690 R14: 0000563ad051b6d7 R15: 00007fff82bb2720
</TASK>


---
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If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup

[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: 3a8ababb8b6a Linux 6.6.101
git tree: linux-6.6.y

console output: https://syzkaller.appspot.com/x/log.txt?x=17c98af0580000

kernel config: https://syzkaller.appspot.com/x/.config?x=a2bd95b6de4839b7
dashboard link: https://syzkaller.appspot.com/bug?extid=60b5e90b6d2c52328fb9
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10440c34580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11a705a2580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/f06c672f5fa8/disk-3a8ababb.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9af9b7afcdc5/vmlinux-3a8ababb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/351a55aafa77/bzImage-3a8ababb.xz

mounted in repro: https://storage.googleapis.com/syzbot-assets/bcc6fdf93021/mount_0.gz
fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=12a705a2580000)

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+60b5e9...@syzkaller.appspotmail.com

INFO: task kworker/0:3:1194 blocked for more than 143 seconds.

Not tainted 6.6.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

task:kworker/0:3 state:D stack:25704 pid:1194 ppid:2 flags:0x00004000

Workqueue: gfs2_recovery gfs2_recover_func
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x14d2/0x44d0 kernel/sched/core.c:6700
schedule+0xbd/0x170 kernel/sched/core.c:6774
io_schedule+0x80/0xd0 kernel/sched/core.c:9023
folio_wait_bit_common+0x6eb/0xf70 mm/filemap.c:1329
folio_wait_locked include/linux/pagemap.h:1149 [inline]
gfs2_jhead_process_page+0x17a/0x700 fs/gfs2/lops.c:477
gfs2_find_jhead+0xbe5/0xd20 fs/gfs2/lops.c:594
gfs2_recover_func+0x688/0x1c60 fs/gfs2/recovery.c:460
process_one_work kernel/workqueue.c:2634 [inline]
process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>

INFO: task syz.0.17:5946 blocked for more than 143 seconds.

Not tainted 6.6.101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

task:syz.0.17 state:D stack:24616 pid:5946 ppid:5901 flags:0x00004006

Call Trace:
<TASK>
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x14d2/0x44d0 kernel/sched/core.c:6700
schedule+0xbd/0x170 kernel/sched/core.c:6774
bit_wait+0x11/0xd0 kernel/sched/wait_bit.c:199
__wait_on_bit+0xac/0x2d0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x123/0x170 kernel/sched/wait_bit.c:64
wait_on_bit include/linux/wait_bit.h:76 [inline]
gfs2_recover_journal+0xda/0x130 fs/gfs2/recovery.c:577
init_journal+0x17c5/0x2260 fs/gfs2/ops_fstype.c:833
init_inodes+0xdb/0x320 fs/gfs2/ops_fstype.c:886
gfs2_fill_super+0x1815/0x1f80 fs/gfs2/ops_fstype.c:1266
get_tree_bdev+0x3e4/0x510 fs/super.c:1591
gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1344
vfs_get_tree+0x8c/0x280 fs/super.c:1764
do_new_mount+0x24b/0xa40 fs/namespace.c:3371
do_mount fs/namespace.c:3711 [inline]
__do_sys_mount fs/namespace.c:3920 [inline]
__se_sys_mount+0x2da/0x3c0 fs/namespace.c:3897
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2

RIP: 0033:0x7f468559038a
RSP: 002b:00007ffda6c60148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffda6c601d0 RCX: 00007f468559038a
RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007ffda6c60190
RBP: 0000200000000140 R08: 00007ffda6c601d0 R09: 0000000002810000

R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80

R13: 00007ffda6c60190 R14: 0000000000038014 R15: 00002000000001c0

</TASK>

Showing all locks held in the system:

1 lock held by khungtaskd/29:
#0: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
#0: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:786 [inline]
#0: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x290 kernel/locking/lockdep.c:6633

2 locks held by kworker/0:3/1194:
#0: ffff88801eec9138 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2609 [inline]
#0: ffff88801eec9138 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_scheduled_works+0x957/0x15b0 kernel/workqueue.c:2711
#1: ffffc900049cfd00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2609 [inline]
#1: ffffc900049cfd00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_scheduled_works+0x957/0x15b0 kernel/workqueue.c:2711
2 locks held by getty/5549:
#0: ffff88802deca0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243

#1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x425/0x1380 drivers/tty/n_tty.c:2217

1 lock held by syz.0.17/5946:
#0: ffff88802cb960e0 (&type->s_umount_key#56){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88802cb960e0 (&type->s_umount_key#56){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88802cb960e0 (&type->s_umount_key#56){+.+.}-{3:3}, at: get_tree_bdev+0x344/0x510 fs/super.c:1589

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
<TASK>
dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106
nmi_cpu_backtrace+0x39b/0x3d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x17a/0x2f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf41/0xf80 kernel/hung_task.c:379
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0

CPU: 0 PID: 5151 Comm: klogd Not tainted 6.6.101-syzkaller #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025

RIP: 0010:update_min_vruntime kernel/sched/fair.c:792 [inline]
RIP: 0010:update_curr+0x3a8/0x7f0 kernel/sched/fair.c:1215
Code: 08 48 89 df e8 69 dd 7d 00 4c 8b 2b 4d 85 f6 74 5d 49 83 c6 68 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 4c 89 f7 e8 3e dd 7d 00 49 8b 06 4c 39 e8 4c 0f 48 e8 eb 2e
RSP: 0018:ffffc900032876c0 EFLAGS: 00000046
RAX: 1ffff1100364e01d RBX: ffff88807e13dae8 RCX: dffffc0000000000
RDX: 0000000000000009 RSI: ffffffff8aaacbc0 RDI: ffff88807e13dae8
RBP: 1ffff110171c78a7 R08: ffffffff8e4a84ef R09: 1ffffffff1c9509d
R10: dffffc0000000000 R11: fffffbfff1c9509e R12: 00000017c5f638a5
R13: 00000017c5f9f7d0 R14: ffff88801b2700e8 R15: ffff8880b8e3c538
FS: 00007f000db17c80(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 00007f43627ff000 CR3: 000000002e01a000 CR4: 00000000003506f0
Call Trace:
<TASK>
enqueue_entity+0x62/0x1580 kernel/sched/fair.c:5297
enqueue_task_fair+0x59b/0xb00 kernel/sched/fair.c:6763
enqueue_task+0x182/0x2c0 kernel/sched/core.c:2101
activate_task kernel/sched/core.c:2131 [inline]
ttwu_do_activate+0x1d6/0x7d0 kernel/sched/core.c:3790
ttwu_queue kernel/sched/core.c:4032 [inline]
try_to_wake_up+0x654/0x10b0 kernel/sched/core.c:4349
autoremove_wake_function+0x17/0x100 kernel/sched/wait.c:424
__wake_up_common+0x2a4/0x4e0 kernel/sched/wait.c:107
__wake_up_common_lock kernel/sched/wait.c:138 [inline]
__wake_up_sync_key+0x111/0x190 kernel/sched/wait.c:213
sock_def_readable+0x1e1/0x430 net/core/sock.c:3329
unix_dgram_sendmsg+0x10cc/0x1720 net/unix/af_unix.c:2141
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x46a/0x620 net/socket.c:2201
__do_sys_sendto net/socket.c:2213 [inline]
__se_sys_sendto net/socket.c:2209 [inline]
__x64_sys_sendto+0xde/0xf0 net/socket.c:2209

do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2

RIP: 0033:0x7f000dc67407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffc5077e200 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f000db17c80 RCX: 00007f000dc67407
RDX: 000000000000008b RSI: 00007ffc5077e340 RDI: 0000000000000003
RBP: 00007ffc5077e770 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffc5077e788
R13: 00007ffc5077e340 R14: 0000000000000070 R15: 00007ffc5077e340
</TASK>


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