assert "((flags & PGO_LOCKED) != NUM && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == NUM" failed in uvm_vno (3)
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syzbot
Jul 31, 2023, 9:49:57 AM7/31/23
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 6c7eb53ac00b Add JH7110 I2C clocks.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17016c75a80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=10a079694388702a3151
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/3f26702a4d25/disk-6c7eb53a.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/a6bd87fc3cb2/bsd-6c7eb53a.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4f0b9daea0a6/kernel-6c7eb53a.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+10a079...@syzkaller.appspotmail.com
papanic: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_vnode.c", line 953
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*303773 90672 0 0 0x4000000 1 syz-executor.3
461644 70972 0 0x2 0 0 syz-executor.1
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: 2
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu0: vop_generic_badop
cpu1: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_vnode.c", line 953
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: -13
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002956b1d0
rbx 0xffff800020d59b8f
rdx 0
rcx 0xffff800021246590
rax 0xffff800020d58ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x3e5552b0a438b6bb
r11 0xec656b925ff40f5e
r12 0xffff800020d59990
r13 0
r14 0xffffffff82bc6990 cpu_info_full_primary+0x2990
r15 0x1
rip 0xffffffff812588bc db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002956b1c0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.3) pid=303773 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=83, nice=20
forw=0xffffffffffffffff, list=0xffff800021247b50,0xffff8000212213a8
process=0xffff80002e459940 user=0xffff800029566000, vmspace=0xfffffd8066896760
estcpu=36, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
78272 172777 48769 0 2 0 syz-executor.6
78272 520043 48769 0 3 0x4000080 fsleep syz-executor.6
90672 123069 67556 0 2 0 syz-executor.3
*90672 303773 67556 0 7 0x4000000 syz-executor.3
90672 260666 67556 0 3 0x4000080 fsleep syz-executor.3
20737 363736 20818 0 3 0x80 nanoslp syz-executor.2
20737 147751 20818 0 3 0x4000080 fsleep syz-executor.2
20737 38864 20818 0 3 0x4000080 fsleep syz-executor.2
42883 152562 41871 0 3 0x80 nanoslp syz-executor.4
42883 113110 41871 0 3 0x4000080 ttyout syz-executor.4
42883 504656 41871 0 3 0x4000080 fsleep syz-executor.4
42883 93051 41871 0 3 0x4000080 fsleep syz-executor.4
41871 90251 34858 0 3 0x82 nanoslp syz-executor.4
70972 461644 34858 0 7 0x2 syz-executor.1
99148 470193 34858 0 3 0x82 nanoslp syz-executor.0
20818 410238 34858 0 3 0x82 nanoslp syz-executor.2
71354 429131 34858 0 3 0x2 biowait syz-executor.7
15686 389155 34858 0 3 0x2 biowait syz-executor.5
48769 72756 34858 0 3 0x82 nanoslp syz-executor.6
67556 436295 34858 0 3 0x82 nanoslp syz-executor.3
75090 129325 1 0 3 0x100083 ttyopn getty
11934 281535 0 0 3 0x14200 bored sosplice
34858 146938 75440 0 3 0x82 wait syz-fuzzer
34858 376562 75440 0 3 0x4000082 nanoslp syz-fuzzer
34858 253950 75440 0 3 0x4000082 kqread syz-fuzzer
34858 62850 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 109084 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 170537 75440 0 3 0x4000082 wait syz-fuzzer
34858 131292 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 164976 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 449701 75440 0 3 0x4000082 wait syz-fuzzer
34858 412879 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 355180 75440 0 3 0x4000082 wait syz-fuzzer
34858 258481 75440 0 3 0x4000082 wait syz-fuzzer
34858 495255 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 239869 75440 0 3 0x4000082 wait syz-fuzzer
34858 747 75440 0 3 0x4000082 wait syz-fuzzer
34858 116000 75440 0 3 0x4000082 wait syz-fuzzer
75440 5623 72618 0 3 0x10008a sigsusp ksh
72618 212956 89152 0 3 0x9a kqread sshd
89152 167079 1 0 3 0x88 kqread sshd
73587 353907 49758 74 3 0x1100092 bpf pflogd
49758 122919 1 0 3 0x80 netio pflogd
83390 268894 54054 73 3 0x1100090 kqread syslogd
54054 135962 1 0 3 0x100082 netio syslogd
6397 159197 1 0 3 0x100080 kqread resolvd
33639 516613 22118 77 3 0x100092 kqread dhcpleased
46611 246492 22118 77 3 0x100092 kqread dhcpleased
22118 50312 1 0 3 0x80 kqread dhcpleased
21246 186045 0 0 3 0x14200 bored smr
30870 488146 0 0 2 0x14200 zerothread
94769 261012 0 0 3 0x14200 aiodoned aiodoned
26013 202279 0 0 3 0x14200 syncer update
8045 22147 0 0 3 0x14200 cleaner cleaner
74860 216135 0 0 3 0x14200 reaper reaper
9693 233317 0 0 3 0x14200 pgdaemon pagedaemon
9488 81709 0 0 3 0x14200 bored viomb
2791 47522 0 0 3 0x40014200 acpi0 acpi0
7814 59500 0 0 3 0x40014200 idle1
28176 148005 0 0 3 0x14200 bored softnet3
25773 268577 0 0 3 0x14200 bored softnet2
22380 299960 0 0 3 0x14200 bored softnet1
40649 57712 0 0 3 0x14200 bored softnet0
99798 438407 0 0 3 0x14200 bored systqmp
69016 410088 0 0 3 0x14200 bored systq
50375 356598 0 0 3 0x40014200 bored softclock
92603 142800 0 0 3 0x40014200 idle0
1 126163 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 90672 (syz-executor.3) thread 0xffff800021246590 (303773)
exclusive rwlock futex r = 0 (0xffffffff82c07460)
#0 witness_lock+0x447
#1 sys_futex+0x60 sys/kern/sys_futex.c:107
#2 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#2 syscall+0x606 sys/arch/amd64/amd64/trap.c:623
#3 Xsyscall+0x128
Process 70972 (syz-executor.1) thread 0xffff800021247070 (461644)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82ca1ed8)
#0 witness_lock+0x447
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x440 sys/kern/sched_bsd.c:420
#3 sleep_finish+0x184 sys/kern/kern_synch.c:411
#4 biowait+0x91 sys/kern/vfs_bio.c:1278
#5 bwrite+0x21c sys/kern/vfs_bio.c:769
#6 ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113
#7 ufs_mkdir+0x672 sys/ufs/ufs/ufs_vnops.c:1219
#8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8062c64c48)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vget+0x200 sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314
#8 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394
#9 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149
#10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#13 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8079e07098)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9 Xsyscall+0x128
Process 71354 (syz-executor.7) thread 0xffff80002120edd8 (429131)
exclusive rrwlock inode r = 0 (0xfffffd8079e07c48)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vget+0x200 sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314
#8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#11 namei+0x55a sys/kern/vfs_lookup.c:250
#12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806753fc48)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9 Xsyscall+0x128
Process 15686 (syz-executor.5) thread 0xffff800021275b58 (389155)
exclusive rrwlock inode r = 0 (0xfffffd807b2815e8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343
#6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149
#8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8079fc0b40)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10200 6498K 6732K 78643K 14880 0
pcb 13 16K 18K 78643K 1600 0
rtable 251 7K 7K 78643K 1840 0
pf 32 9K 10K 78643K 669 0
ifaddr 45 19K 21K 78643K 435 0
ifgroup 55 2K 2K 78643K 1059 0
sysctl 3 1K 2K 78643K 13 0
counters 60 35K 36K 78643K 576 0
ioctlops 0 0K 4K 78643K 1753 0
iov 0 0K 26K 78643K 2006 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1505 94K 95K 78643K 6954 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 246 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 2031 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 14 49K 85K 78643K 24535 0
sigio 0 0K 0K 78643K 363 0
proc 70 91K 127K 78643K 3002 0
subproc 104 6K 6K 78643K 647 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 1030 0
in_multi 99 7K 7K 78643K 655 0
ether_multi 1 0K 0K 78643K 10 0
mrt 1 0K 0K 78643K 8 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 121 546K 546K 78643K 121 0
exec 0 0K 1K 78643K 3838 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 526 102K 119K 78643K 251862 0
UVM aobj 131 8K 8K 78643K 139 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 443 0
NDP 12 0K 1K 78643K 366 0
temp 75 5872K 6005K 78643K 153491 0
kqueue 12 18K 27K 78643K 1260 0
SYN cache 2 16K 24K 78643K 4 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 575 0 572 5 4 1 2 0 8 0
rtentry 112 583 0 466 4 0 4 4 0 8 0
unpcb 144 12922 0 12905 151 147 4 10 0 8 3
syncache 296 88 0 88 29 29 0 1 0 8 0
tcpqe 32 195 0 195 21 21 0 1 0 8 0
tcpcb 808 4959 0 4955 202 201 1 14 0 8 0
arp 120 98 0 80 1 0 1 1 0 8 0
inpcb 368 11600 0 11593 281 274 7 13 0 8 6
nd6 136 168 0 137 3 1 2 2 0 8 0
pkpcb 40 64 0 64 13 13 0 1 0 8 0
kcovpl 48 48 0 40 1 0 1 1 0 8 0
ppxss 1256 69 0 69 16 16 0 1 0 8 0
pffrag 232 207 0 203 7 6 1 1 0 482 0
pffrnode 88 207 0 203 7 6 1 1 0 8 0
pffrent 40 660 0 656 9 8 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 520 0 494 1 0 1 1 0 8 0
pfstkey 128 520 0 494 3 2 1 2 0 8 0
pfstate 376 520 0 494 12 9 3 4 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 2321 0 1829 33 2 31 31 0 8 0
art_table 32 2322 0 1829 4 0 4 4 0 8 0
art_node 16 574 0 467 1 0 1 1 0 8 0
sysvmsgpl 40 87 0 75 1 0 1 1 0 8 0
semapl 112 2024 0 2014 1 0 1 1 0 8 0
shmpl 112 136 0 8 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 39762 0 38146 102 0 102 102 0 8 0
ffsino 272 39762 0 38146 109 0 109 109 0 8 0
nchpl 144 76668 0 76155 64 40 24 64 0 8 0
uvmvnodes 80 8512 0 0 174 0 174 174 0 8 0
vnodes 216 8512 0 0 473 0 473 473 0 8 0
namei 1024 250243 0 250241 15 14 1 2 0 8 0
percpumem 16 301 0 258 1 0 1 1 0 8 0
kstatmem 264 540 0 516 2 0 2 2 0 8 0
scxspl 216 224703 0 224701 70 69 1 8 0 8 0
plimitpl 152 3233 0 3216 1 0 1 1 0 8 0
sigapl 424 25189 0 25143 13 5 8 8 0 8 1
futexpl 64 191914 0 191908 6 5 1 1 0 8 0
knotepl 120 1689 0 0 21 2 19 19 0 8 0
kqueuepl 216 4414 0 4406 84 83 1 8 0 8 0
pipepl 320 4934 0 4906 142 139 3 13 0 8 0
fdescpl 496 24769 0 24742 5 0 5 5 0 8 0
filepl 152 151115 0 150835 288 275 13 23 0 8 2
lockfpl 104 4217 0 4215 6 5 1 2 0 8 0
lockfspl 48 1479 0 1477 1 0 1 1 0 8 0
sessionpl 144 71 0 54 1 0 1 1 0 8 0
pgrppl 48 174 0 157 1 0 1 1 0 8 0
ucredpl 104 19440 0 19409 1 0 1 1 0 8 0
zombiepl 144 25144 0 25143 6 5 1 1 0 8 0
processpl 1072 25189 0 25143 5 0 5 5 0 8 0
procpl 696 69367 0 69298 31 21 10 11 0 8 1
sosppl 168 144 0 144 27 27 0 1 0 8 0
sockpl 488 25189 0 25162 679 667 12 34 0 8 7
mcl64k 65536 38 0 0 3 1 2 3 0 8 0
mcl16k 16384 26 0 0 3 1 2 3 0 8 0
mcl12k 12288 33 0 0 2 0 2 2 0 8 0
mcl9k 9216 31 0 0 2 0 2 2 0 8 0
mcl8k 8192 41 0 0 5 2 3 3 0 8 0
mcl4k 4096 41 0 0 5 2 3 3 0 8 0
mcl2k2 2112 16 0 0 2 0 2 2 0 8 0
mcl2k 2048 455 0 0 34 16 18 34 0 8 0
mtagpl 96 162 0 0 4 1 3 4 0 8 0
mbufpl 256 2506 0 0 74 0 74 74 0 8 0
bufpl 288 50218 0 41704 609 0 609 609 0 8 0
anonpl 24 2503291 0 2490323 199 92 107 120 0 186 0
amapchunkpl 152 790553 0 789668 140 100 40 52 0 158 1
amappl16 200 51680 0 51313 361 330 31 46 0 8 8
amappl15 192 8 0 8 3 3 0 1 0 8 0
amappl14 184 330 0 313 5 4 1 2 0 8 0
amappl13 176 20 0 20 4 4 0 1 0 8 0
amappl12 168 21033 0 21002 4 1 3 3 0 8 0
amappl11 160 58 0 44 1 0 1 1 0 8 0
amappl10 152 71 0 58 1 0 1 1 0 8 0
amappl9 144 359 0 359 35 34 1 2 0 8 1
amappl8 136 1359 0 1086 10 0 10 10 0 8 0
amappl7 128 242 0 222 1 0 1 1 0 8 0
amappl6 120 801 0 774 2 1 1 2 0 8 0
amappl5 112 786 0 777 1 0 1 1 0 8 0
amappl4 104 1601 0 1552 3 1 2 3 0 8 0
amappl3 96 154051 0 153963 4 1 3 3 0 8 0
amappl2 88 26117 0 26039 3 1 2 3 0 8 0
amappl1 80 97414 0 96877 23 11 12 23 0 8 0
amappl 88 250184 0 249928 8 1 7 7 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 138 0 8 3 0 3 3 0 8 0
uaddrrnd 24 24769 0 24742 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 24769 0 24742 1 0 1 1 0 8 0
vmmpekpl 168 189636 0 189573 4 0 4 4 0 8 0
vmmpepl 168 1535572 0 1533073 412 274 138 140 0 357 4
vmsppl 464 24768 0 24742 5 1 4 5 0 8 0
rwobjpl 56 367358 0 357033 186 37 149 149 0 8 0
pdppl 4096 49546 0 49484 1244 1174 70 80 0 8 8
pvpl 32 6866888 0 6847853 700 508 192 369 0 265 1
pmappl 248 24768 0 24742 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 2742 0 1705 30 0 30 30 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82bc5ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
intr_handler(ffff8000212a9070,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
cnputc(61) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155
kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724
db_printf(ffffffff82817c58) at db_printf+0x89 sys/kern/subr_prf.c:498
panic(ffffffff8278b458) at panic+0xdb sys/kern/subr_prf.c:216
vop_generic_badop(ffff8000212a9498) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd806603d6e0,fffffd8065f65148) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
end trace frame: 0xffff8000212a9540, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff82bc5ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
intr_handler(ffff8000212a9070,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
cnputc(61) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155
kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724
db_printf(ffffffff82817c58) at db_printf+0x89 sys/kern/subr_prf.c:498
panic(ffffffff8278b458) at panic+0xdb sys/kern/subr_prf.c:216
vop_generic_badop(ffff8000212a9498) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd806603d6e0,fffffd8065f65148) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065f65148) at bwrite+0x1f1 sys/kern/vfs_bio.c:760
VOP_BWRITE(fffffd8065f65148) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212a9730) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235
VOP_MKDIR(fffffd806673d7a8,ffff8000212a9890,ffff8000212a98c0,ffff8000212a97c0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff800021247070,ffffff9c,77f1c5b4e7d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
syscall(ffff8000212a9a40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212a9a40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77f1c5b4e840, count: -21
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x1c: addq $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: 2
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: -13
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
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If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to change bug's subsystems, reply with:
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(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 6c7eb53ac00b Add JH7110 I2C clocks.
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17016c75a80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=10a079694388702a3151
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/3f26702a4d25/disk-6c7eb53a.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/a6bd87fc3cb2/bsd-6c7eb53a.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4f0b9daea0a6/kernel-6c7eb53a.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+10a079...@syzkaller.appspotmail.com
papanic: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_vnode.c", line 953
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*303773 90672 0 0 0x4000000 1 syz-executor.3
461644 70972 0 0x2 0 0 syz-executor.1
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: 2
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu0: vop_generic_badop
cpu1: kernel diagnostic assertion "((flags & PGO_LOCKED) != 0 && rw_lock_held(uobj->vmobjlock)) || (flags & PGO_LOCKED) == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_vnode.c", line 953
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: -13
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002956b1d0
rbx 0xffff800020d59b8f
rdx 0
rcx 0xffff800021246590
rax 0xffff800020d58ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x3e5552b0a438b6bb
r11 0xec656b925ff40f5e
r12 0xffff800020d59990
r13 0
r14 0xffffffff82bc6990 cpu_info_full_primary+0x2990
r15 0x1
rip 0xffffffff812588bc db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002956b1c0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.3) pid=303773 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=83, nice=20
forw=0xffffffffffffffff, list=0xffff800021247b50,0xffff8000212213a8
process=0xffff80002e459940 user=0xffff800029566000, vmspace=0xfffffd8066896760
estcpu=36, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
78272 172777 48769 0 2 0 syz-executor.6
78272 520043 48769 0 3 0x4000080 fsleep syz-executor.6
90672 123069 67556 0 2 0 syz-executor.3
*90672 303773 67556 0 7 0x4000000 syz-executor.3
90672 260666 67556 0 3 0x4000080 fsleep syz-executor.3
20737 363736 20818 0 3 0x80 nanoslp syz-executor.2
20737 147751 20818 0 3 0x4000080 fsleep syz-executor.2
20737 38864 20818 0 3 0x4000080 fsleep syz-executor.2
42883 152562 41871 0 3 0x80 nanoslp syz-executor.4
42883 113110 41871 0 3 0x4000080 ttyout syz-executor.4
42883 504656 41871 0 3 0x4000080 fsleep syz-executor.4
42883 93051 41871 0 3 0x4000080 fsleep syz-executor.4
41871 90251 34858 0 3 0x82 nanoslp syz-executor.4
70972 461644 34858 0 7 0x2 syz-executor.1
99148 470193 34858 0 3 0x82 nanoslp syz-executor.0
20818 410238 34858 0 3 0x82 nanoslp syz-executor.2
71354 429131 34858 0 3 0x2 biowait syz-executor.7
15686 389155 34858 0 3 0x2 biowait syz-executor.5
48769 72756 34858 0 3 0x82 nanoslp syz-executor.6
67556 436295 34858 0 3 0x82 nanoslp syz-executor.3
75090 129325 1 0 3 0x100083 ttyopn getty
11934 281535 0 0 3 0x14200 bored sosplice
34858 146938 75440 0 3 0x82 wait syz-fuzzer
34858 376562 75440 0 3 0x4000082 nanoslp syz-fuzzer
34858 253950 75440 0 3 0x4000082 kqread syz-fuzzer
34858 62850 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 109084 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 170537 75440 0 3 0x4000082 wait syz-fuzzer
34858 131292 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 164976 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 449701 75440 0 3 0x4000082 wait syz-fuzzer
34858 412879 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 355180 75440 0 3 0x4000082 wait syz-fuzzer
34858 258481 75440 0 3 0x4000082 wait syz-fuzzer
34858 495255 75440 0 3 0x4000082 thrsleep syz-fuzzer
34858 239869 75440 0 3 0x4000082 wait syz-fuzzer
34858 747 75440 0 3 0x4000082 wait syz-fuzzer
34858 116000 75440 0 3 0x4000082 wait syz-fuzzer
75440 5623 72618 0 3 0x10008a sigsusp ksh
72618 212956 89152 0 3 0x9a kqread sshd
89152 167079 1 0 3 0x88 kqread sshd
73587 353907 49758 74 3 0x1100092 bpf pflogd
49758 122919 1 0 3 0x80 netio pflogd
83390 268894 54054 73 3 0x1100090 kqread syslogd
54054 135962 1 0 3 0x100082 netio syslogd
6397 159197 1 0 3 0x100080 kqread resolvd
33639 516613 22118 77 3 0x100092 kqread dhcpleased
46611 246492 22118 77 3 0x100092 kqread dhcpleased
22118 50312 1 0 3 0x80 kqread dhcpleased
21246 186045 0 0 3 0x14200 bored smr
30870 488146 0 0 2 0x14200 zerothread
94769 261012 0 0 3 0x14200 aiodoned aiodoned
26013 202279 0 0 3 0x14200 syncer update
8045 22147 0 0 3 0x14200 cleaner cleaner
74860 216135 0 0 3 0x14200 reaper reaper
9693 233317 0 0 3 0x14200 pgdaemon pagedaemon
9488 81709 0 0 3 0x14200 bored viomb
2791 47522 0 0 3 0x40014200 acpi0 acpi0
7814 59500 0 0 3 0x40014200 idle1
28176 148005 0 0 3 0x14200 bored softnet3
25773 268577 0 0 3 0x14200 bored softnet2
22380 299960 0 0 3 0x14200 bored softnet1
40649 57712 0 0 3 0x14200 bored softnet0
99798 438407 0 0 3 0x14200 bored systqmp
69016 410088 0 0 3 0x14200 bored systq
50375 356598 0 0 3 0x40014200 bored softclock
92603 142800 0 0 3 0x40014200 idle0
1 126163 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 90672 (syz-executor.3) thread 0xffff800021246590 (303773)
exclusive rwlock futex r = 0 (0xffffffff82c07460)
#0 witness_lock+0x447
#1 sys_futex+0x60 sys/kern/sys_futex.c:107
#2 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#2 syscall+0x606 sys/arch/amd64/amd64/trap.c:623
#3 Xsyscall+0x128
Process 70972 (syz-executor.1) thread 0xffff800021247070 (461644)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82ca1ed8)
#0 witness_lock+0x447
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x440 sys/kern/sched_bsd.c:420
#3 sleep_finish+0x184 sys/kern/kern_synch.c:411
#4 biowait+0x91 sys/kern/vfs_bio.c:1278
#5 bwrite+0x21c sys/kern/vfs_bio.c:769
#6 ffs_update+0x281 sys/ufs/ffs/ffs_inode.c:113
#7 ufs_mkdir+0x672 sys/ufs/ufs/ufs_vnops.c:1219
#8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8062c64c48)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vget+0x200 sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314
#8 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394
#9 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149
#10 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#11 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#13 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8079e07098)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9 Xsyscall+0x128
Process 71354 (syz-executor.7) thread 0xffff80002120edd8 (429131)
exclusive rrwlock inode r = 0 (0xfffffd8079e07c48)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vget+0x200 sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314
#8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#11 namei+0x55a sys/kern/vfs_lookup.c:250
#12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806753fc48)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9 Xsyscall+0x128
Process 15686 (syz-executor.5) thread 0xffff800021275b58 (389155)
exclusive rrwlock inode r = 0 (0xfffffd807b2815e8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343
#6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149
#8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8079fc0b40)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10200 6498K 6732K 78643K 14880 0
pcb 13 16K 18K 78643K 1600 0
rtable 251 7K 7K 78643K 1840 0
pf 32 9K 10K 78643K 669 0
ifaddr 45 19K 21K 78643K 435 0
ifgroup 55 2K 2K 78643K 1059 0
sysctl 3 1K 2K 78643K 13 0
counters 60 35K 36K 78643K 576 0
ioctlops 0 0K 4K 78643K 1753 0
iov 0 0K 26K 78643K 2006 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1505 94K 95K 78643K 6954 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 246 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 2031 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 14 49K 85K 78643K 24535 0
sigio 0 0K 0K 78643K 363 0
proc 70 91K 127K 78643K 3002 0
subproc 104 6K 6K 78643K 647 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 1030 0
in_multi 99 7K 7K 78643K 655 0
ether_multi 1 0K 0K 78643K 10 0
mrt 1 0K 0K 78643K 8 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 121 546K 546K 78643K 121 0
exec 0 0K 1K 78643K 3838 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 526 102K 119K 78643K 251862 0
UVM aobj 131 8K 8K 78643K 139 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 443 0
NDP 12 0K 1K 78643K 366 0
temp 75 5872K 6005K 78643K 153491 0
kqueue 12 18K 27K 78643K 1260 0
SYN cache 2 16K 24K 78643K 4 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 575 0 572 5 4 1 2 0 8 0
rtentry 112 583 0 466 4 0 4 4 0 8 0
unpcb 144 12922 0 12905 151 147 4 10 0 8 3
syncache 296 88 0 88 29 29 0 1 0 8 0
tcpqe 32 195 0 195 21 21 0 1 0 8 0
tcpcb 808 4959 0 4955 202 201 1 14 0 8 0
arp 120 98 0 80 1 0 1 1 0 8 0
inpcb 368 11600 0 11593 281 274 7 13 0 8 6
nd6 136 168 0 137 3 1 2 2 0 8 0
pkpcb 40 64 0 64 13 13 0 1 0 8 0
kcovpl 48 48 0 40 1 0 1 1 0 8 0
ppxss 1256 69 0 69 16 16 0 1 0 8 0
pffrag 232 207 0 203 7 6 1 1 0 482 0
pffrnode 88 207 0 203 7 6 1 1 0 8 0
pffrent 40 660 0 656 9 8 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 520 0 494 1 0 1 1 0 8 0
pfstkey 128 520 0 494 3 2 1 2 0 8 0
pfstate 376 520 0 494 12 9 3 4 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 2321 0 1829 33 2 31 31 0 8 0
art_table 32 2322 0 1829 4 0 4 4 0 8 0
art_node 16 574 0 467 1 0 1 1 0 8 0
sysvmsgpl 40 87 0 75 1 0 1 1 0 8 0
semapl 112 2024 0 2014 1 0 1 1 0 8 0
shmpl 112 136 0 8 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 39762 0 38146 102 0 102 102 0 8 0
ffsino 272 39762 0 38146 109 0 109 109 0 8 0
nchpl 144 76668 0 76155 64 40 24 64 0 8 0
uvmvnodes 80 8512 0 0 174 0 174 174 0 8 0
vnodes 216 8512 0 0 473 0 473 473 0 8 0
namei 1024 250243 0 250241 15 14 1 2 0 8 0
percpumem 16 301 0 258 1 0 1 1 0 8 0
kstatmem 264 540 0 516 2 0 2 2 0 8 0
scxspl 216 224703 0 224701 70 69 1 8 0 8 0
plimitpl 152 3233 0 3216 1 0 1 1 0 8 0
sigapl 424 25189 0 25143 13 5 8 8 0 8 1
futexpl 64 191914 0 191908 6 5 1 1 0 8 0
knotepl 120 1689 0 0 21 2 19 19 0 8 0
kqueuepl 216 4414 0 4406 84 83 1 8 0 8 0
pipepl 320 4934 0 4906 142 139 3 13 0 8 0
fdescpl 496 24769 0 24742 5 0 5 5 0 8 0
filepl 152 151115 0 150835 288 275 13 23 0 8 2
lockfpl 104 4217 0 4215 6 5 1 2 0 8 0
lockfspl 48 1479 0 1477 1 0 1 1 0 8 0
sessionpl 144 71 0 54 1 0 1 1 0 8 0
pgrppl 48 174 0 157 1 0 1 1 0 8 0
ucredpl 104 19440 0 19409 1 0 1 1 0 8 0
zombiepl 144 25144 0 25143 6 5 1 1 0 8 0
processpl 1072 25189 0 25143 5 0 5 5 0 8 0
procpl 696 69367 0 69298 31 21 10 11 0 8 1
sosppl 168 144 0 144 27 27 0 1 0 8 0
sockpl 488 25189 0 25162 679 667 12 34 0 8 7
mcl64k 65536 38 0 0 3 1 2 3 0 8 0
mcl16k 16384 26 0 0 3 1 2 3 0 8 0
mcl12k 12288 33 0 0 2 0 2 2 0 8 0
mcl9k 9216 31 0 0 2 0 2 2 0 8 0
mcl8k 8192 41 0 0 5 2 3 3 0 8 0
mcl4k 4096 41 0 0 5 2 3 3 0 8 0
mcl2k2 2112 16 0 0 2 0 2 2 0 8 0
mcl2k 2048 455 0 0 34 16 18 34 0 8 0
mtagpl 96 162 0 0 4 1 3 4 0 8 0
mbufpl 256 2506 0 0 74 0 74 74 0 8 0
bufpl 288 50218 0 41704 609 0 609 609 0 8 0
anonpl 24 2503291 0 2490323 199 92 107 120 0 186 0
amapchunkpl 152 790553 0 789668 140 100 40 52 0 158 1
amappl16 200 51680 0 51313 361 330 31 46 0 8 8
amappl15 192 8 0 8 3 3 0 1 0 8 0
amappl14 184 330 0 313 5 4 1 2 0 8 0
amappl13 176 20 0 20 4 4 0 1 0 8 0
amappl12 168 21033 0 21002 4 1 3 3 0 8 0
amappl11 160 58 0 44 1 0 1 1 0 8 0
amappl10 152 71 0 58 1 0 1 1 0 8 0
amappl9 144 359 0 359 35 34 1 2 0 8 1
amappl8 136 1359 0 1086 10 0 10 10 0 8 0
amappl7 128 242 0 222 1 0 1 1 0 8 0
amappl6 120 801 0 774 2 1 1 2 0 8 0
amappl5 112 786 0 777 1 0 1 1 0 8 0
amappl4 104 1601 0 1552 3 1 2 3 0 8 0
amappl3 96 154051 0 153963 4 1 3 3 0 8 0
amappl2 88 26117 0 26039 3 1 2 3 0 8 0
amappl1 80 97414 0 96877 23 11 12 23 0 8 0
amappl 88 250184 0 249928 8 1 7 7 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 138 0 8 3 0 3 3 0 8 0
uaddrrnd 24 24769 0 24742 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 24769 0 24742 1 0 1 1 0 8 0
vmmpekpl 168 189636 0 189573 4 0 4 4 0 8 0
vmmpepl 168 1535572 0 1533073 412 274 138 140 0 357 4
vmsppl 464 24768 0 24742 5 1 4 5 0 8 0
rwobjpl 56 367358 0 357033 186 37 149 149 0 8 0
pdppl 4096 49546 0 49484 1244 1174 70 80 0 8 8
pvpl 32 6866888 0 6847853 700 508 192 369 0 265 1
pmappl 248 24768 0 24742 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 2742 0 1705 30 0 30 30 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82bc5ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
intr_handler(ffff8000212a9070,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
cnputc(61) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155
kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724
db_printf(ffffffff82817c58) at db_printf+0x89 sys/kern/subr_prf.c:498
panic(ffffffff8278b458) at panic+0xdb sys/kern/subr_prf.c:216
vop_generic_badop(ffff8000212a9498) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd806603d6e0,fffffd8065f65148) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
end trace frame: 0xffff8000212a9540, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff82bc5ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82ca1cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
intr_handler(ffff8000212a9070,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
cnputc(61) at cnputc+0x4f sys/dev/cons.c:218
db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155
kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724
db_printf(ffffffff82817c58) at db_printf+0x89 sys/kern/subr_prf.c:498
panic(ffffffff8278b458) at panic+0xdb sys/kern/subr_prf.c:216
vop_generic_badop(ffff8000212a9498) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd806603d6e0,fffffd8065f65148) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd8065f65148) at bwrite+0x1f1 sys/kern/vfs_bio.c:760
VOP_BWRITE(fffffd8065f65148) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff8000212a9730) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235
VOP_MKDIR(fffffd806673d7a8,ffff8000212a9890,ffff8000212a98c0,ffff8000212a97c0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff800021247070,ffffff9c,77f1c5b4e7d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
syscall(ffff8000212a9a40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212a9a40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77f1c5b4e840, count: -21
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x1c: addq $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: 2
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82794ad3) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff82816a23,ffffffff82791c63,3b9,ffffffff8277947b) at __assert+0x29 sys/kern/subr_prf.c:157
uvn_get(fffffd8064325240,0,ffff80002956b530,ffff80002956b3a4,0,1,adba7f9a6dcf684a,fffffd8064325240) at uvn_get+0x4b6 sys/uvm/uvm_vnode.c:952
uvm_fault_lower_lookup(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530) at uvm_fault_lower_lookup+0xf7 sys/uvm/uvm_fault.c:1129
uvm_fault_lower(ffff80002956b5b0,ffff80002956b5e8,ffff80002956b530,0) at uvm_fault_lower+0x63 sys/uvm/uvm_fault.c:1228
uvm_fault(fffffd8066896760,20000000,0,1) at uvm_fault+0x238
kpageflttrap(ffff80002956b750,200002c0) at kpageflttrap+0x252 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002956b750) at kerntrap+0xf3 sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
_copyin() at _copyin+0x57
syscall(ffff80002956b960) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002956b960) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x38de8bcef00, count: -13
---
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syzbot
Feb 7, 2024, 7:57:17 AMFeb 7
to syzkaller-o...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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