uvm_fault(0xffffffff83ab2910, 0xffff800027332158, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs2_balloc+0xa0a: movq 0(%rcx,%rax,8),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*392358 24154 0 0x2 0x1 0 syz-executor
ffs2_balloc(fffff1006a0c1000,dd8b1,50,fffff10007ffd820,1,ffff80002a848da8) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a848e30) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffff10068a47020,ffff80002a848ee0,3,fffff10007ffd820) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff80002a736008,fffff10068a47020,fffff10007ffd820,ffff80002a848fb0,ffff80002a848f90) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692
ktrsysret(ffff80002a736008,5b,0,ffff80002a849070) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff80002a736008,5b,0,ffff80002a849070) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209
syscall(ffff80002a849120) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a849120) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6fe9bd6a6300, count: 8
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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xffffffff83ab2910, 0xffff800027332158, 0, 1) -> d
ddb> trace
ffs2_balloc(fffff1006a0c1000,dd8b1,50,fffff10007ffd820,1,ffff80002a848da8) at ffs2_balloc+0xa0a sys/ufs/ffs/ffs_balloc.c:614
ffs_write(ffff80002a848e30) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffff10068a47020,ffff80002a848ee0,3,fffff10007ffd820) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff80002a736008,fffff10068a47020,fffff10007ffd820,ffff80002a848fb0,ffff80002a848f90) at ktrwriteraw+0x19b sys/kern/kern_ktrace.c:692
ktrsysret(ffff80002a736008,5b,0,ffff80002a849070) at ktrsysret+0x17f ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff80002a736008,5b,0,ffff80002a849070) at ktrsysret+0x17f sys/kern/kern_ktrace.c:209
syscall(ffff80002a849120) at syscall+0xad9 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff80002a849120) at syscall+0xad9 sys/arch/amd64/amd64/trap.c:804
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x6fe9bd6a6300, count: -7
ddb> show registers
rdi 0
rsi 0
rbp 0xffff80002a848d50
rbx 0xfffff1006a0c1000
rdx 0
rcx 0xffff800027332000
rax 0x2b
r8 0xffffffffffffffff
r9 0xffff80002a848da8
r10 0xd0ad94226a08b591
r11 0x9d3d072bbe58e6a1
r12 0x1
r13 0xffff800000c48800
r14 0xffff80002a848bf0
r15 0xfffff1005e1bdcc8
rip 0xffffffff81b9ecba ffs2_balloc+0xa0a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a848be0
ss 0x10
ffs2_balloc+0xa0a: movq 0(%rcx,%rax,8),%r14
ddb> show proc
PROC (syz-executor) tid=392358 pid=24154 tcnt=1 stat=onproc
flags process=2<EXEC> proc=1<INKTR>
runpri=32, usrpri=72, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a736a68,0xffff80002a736548
process=0xffff80002a79df90 user=0xffff80002a844000, vmspace=0xfffff1007be5c008
estcpu=22, cpticks=7, pctcpu=0.0, user=1, sys=6, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
29723 239282 65174 0 2 0 syz-executor
29723 93339 65174 0 3 0x4000080 fsleep syz-executor
52821 92923 65642 0 2 0 syz-executor
52821 189376 65642 0 2 0x4000000 syz-executor
72577 24069 93576 0 3 0x80 fsleep syz-executor
72577 361689 93576 0 3 0x4000080 bell syz-executor
86807 415350 49083 0 3 0x80 fsleep syz-executor
86807 461622 49083 0 3 0x4000080 kqread syz-executor
15587 214879 84770 0 2 0x80 syz-executor
15587 427744 84770 0 2 0x4000000 syz-executor
66786 276113 76465 0 3 0x80 fsleep syz-executor
66786 249594 76465 0 3 0x4000080 lockf syz-executor
20004 98928 24154 0 3 0x80 fsleep syz-executor
20004 267892 24154 0 3 0x4000080 pipewr syz-executor
25304 40314 1 0 3 0x80 nanoslp init
49083 93275 21614 0 2 0xc82 syz-executor
65642 99380 21614 0 2 0xc82 syz-executor
32791 114631 21614 0 2 0xc82 syz-executor
*24154 392358 21614 0 7 0x3 syz-executor
84770 491151 21614 0 2 0xc82 syz-executor
93576 396006 21614 0 2 0xc82 syz-executor
65174 240272 21614 0 2 0xc82 syz-executor
76465 374114 21614 0 2 0xc82 syz-executor
21614 249558 1 0 3 0x82 kqread syz-executor
88257 384523 0 0 3 0x14200 bored smr
13351 4209 0 0 2 0x14200 zerothread
84180 131863 0 0 3 0x14200 aiodoned aiodoned
81009 438730 0 0 3 0x14200 syncer update
24473 346521 0 0 3 0x14200 cleaner cleaner
29157 81296 0 0 3 0x14200 reaper reaper
76616 522291 0 0 3 0x14200 pgdaemon pagedaemon
4892 414859 0 0 3 0x14200 bored viomb
43338 379560 0 0 3 0x40014200 acpi0 acpi0
90696 273211 0 0 3 0x14200 bored softnet0
82773 325727 0 0 3 0x14200 bored systqmp
36665 504410 0 0 3 0x14200 bored systq
95905 439529 0 0 3 0x40014200 tmoslp softclock
79208 368898 0 0 3 0x40014200 idle0
1 9493 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb> show all locks
No such command
ddb>