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pkg/report: normalize OpenBSD assertion messages
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TITLE: assert "pg->wire_count == 1" failed in vfs_biomem.c | ||
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panic: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 329 | ||
Stopped at db_enter+0xa: popq %rbp | ||
TID PID UID PRFLAGS PFLAGS CPU COMMAND | ||
* 96384 33390 0 0x2 0 0 syz-executor1 | ||
db_enter() at db_enter+0xa | ||
panic() at panic+0x147 | ||
__assert(ffffffff81a7b7d4,ffff800014a93ec0,ffffffff81ee1498,ffffff0006401600) a | ||
t __assert+0x24 | ||
buf_free_pages(ffff800011a67000) at buf_free_pages+0x167 | ||
buf_dealloc_mem(ffffff0006401e00) at buf_dealloc_mem+0xb6 | ||
buf_put(ffffff0006401600) at buf_put+0x11f | ||
brelse(2) at brelse+0x19f | ||
vinvalbuf(0,ffffff002bc25790,ffffff002bc257a8,0,ffff80000066d800,11) at vinvalb | ||
uf+0x2e2 | ||
ffs_truncate(ffffff002a4cc140,ffffff002a4cc078,ffffff002bc251f0,ffffff002bc2579 | ||
0) at ffs_truncate+0xc6b | ||
ufs_rmdir(ffffff002a4cc140) at ufs_rmdir+0x277 | ||
VOP_RMDIR(0,ffffff002a4cc078,8) at VOP_RMDIR+0x6a | ||
dounlinkat(ffff800014a94430,ffff8000ffffc4b8,ffff800014a16c78,890) at dounlinka | ||
t+0xf5 | ||
syscall(0) at syscall+0x3e4 | ||
Xsyscall(6,89,7f7fffff4120,89,1b44905c80,7f7fffff45f0) at Xsyscall+0x128 | ||
end of kernel | ||
end trace frame: 0x7f7fffff4560, count: 1 | ||
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> show panic | ||
kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 329 | ||
ddb> trace | ||
db_enter() at db_enter+0xa | ||
panic() at panic+0x147 | ||
__assert(ffffffff81a7b7d4,ffff800014a93ec0,ffffffff81ee1498,ffffff0006401600) at __assert+0x24 | ||
buf_free_pages(ffff800011a67000) at buf_free_pages+0x167 | ||
buf_dealloc_mem(ffffff0006401e00) at buf_dealloc_mem+0xb6 | ||
buf_put(ffffff0006401600) at buf_put+0x11f | ||
brelse(2) at brelse+0x19f | ||
vinvalbuf(0,ffffff002bc25790,ffffff002bc257a8,0,ffff80000066d800,11) at vinvalbuf+0x2e2 | ||
ffs_truncate(ffffff002a4cc140,ffffff002a4cc078,ffffff002bc251f0,ffffff002bc25790) at ffs_truncate+0xc6b | ||
ufs_rmdir(ffffff002a4cc140) at ufs_rmdir+0x277 | ||
VOP_RMDIR(0,ffffff002a4cc078,8) at VOP_RMDIR+0x6a | ||
dounlinkat(ffff800014a94430,ffff8000ffffc4b8,ffff800014a16c78,890) at dounlinkat+0xf5 | ||
syscall(0) at syscall+0x3e4 | ||
Xsyscall(6,89,7f7fffff4120,89,1b44905c80,7f7fffff45f0) at Xsyscall+0x128 | ||
end of kernel | ||
end trace frame: 0x7f7fffff4560, count: -14 | ||
ddb> show registers | ||
rdi 0xffffffff81e39300 kprintf_mutex | ||
rsi 0x5 | ||
rbp 0xffff800014a93e20 | ||
rbx 0xffff800014a93ec0 | ||
rdx 0x3fd | ||
rcx 0 | ||
rax 0 | ||
r8 0xffff800014a93df0 | ||
r9 0x8080808080808080 | ||
r10 0xfba5c39a8da27df7 | ||
r11 0xffffffff81782140 x86_bus_space_io_read_1 | ||
r12 0x3000000008 | ||
r13 0xffff800014a93e30 | ||
r14 0x100 | ||
r15 0xffffffff81bdee3a cmd0646_9_tim_udma+0x1e959 | ||
rip 0xffffffff8180489a db_enter+0xa | ||
cs 0x8 | ||
rflags 0x246 | ||
rsp 0xffff800014a93e20 | ||
ss 0x10 | ||
db_enter+0xa: popq %rbp | ||
ddb> show proc | ||
PROC (syz-executor1) pid=96384 stat=onproc | ||
flags process=2<EXEC> proc=0 | ||
pri=17, usrpri=50, nice=20 | ||
forw=0xffffffffffffffff, list=0xffff8000ffffc260,0xffff8000ffffc018 | ||
process=0xffff800014a16c78 user=0xffff800014a8f000, vmspace=0xffffff003f12b210 | ||
estcpu=1, cpticks=2, pctcpu=0.0 | ||
user=0, sys=2, intr=0 | ||
ddb> ps | ||
PID TID PPID UID S FLAGS WAIT COMMAND | ||
*33390 96384 47875 0 7 0x2 syz-executor1 | ||
85080 436068 1 0 3 0x100083 ttyin getty | ||
30245 323245 0 0 3 0x14200 bored sosplice | ||
47875 369970 32354 0 3 0x82 thrsleep syz-fuzzer | ||
47875 77220 32354 0 3 0x4000082 nanosleep syz-fuzzer | ||
47875 482507 32354 0 3 0x4000082 thrsleep syz-fuzzer | ||
47875 433241 32354 0 3 0x4000082 thrsleep syz-fuzzer | ||
47875 335916 32354 0 3 0x4000082 thrsleep syz-fuzzer | ||
47875 348891 32354 0 3 0x4000082 thrsleep syz-fuzzer | ||
47875 242030 32354 0 3 0x4000002 biowait syz-fuzzer | ||
47875 232330 32354 0 3 0x4000082 thrsleep syz-fuzzer | ||
32354 458845 95616 0 3 0x10008a pause ksh | ||
95616 383040 30526 0 3 0x92 select sshd | ||
30526 27164 1 0 3 0x80 select sshd | ||
83523 442162 89593 73 3 0x100010 ffs_fsync syslogd | ||
89593 92741 1 0 3 0x100082 netio syslogd | ||
56172 522358 1 77 3 0x100090 poll dhclient | ||
99907 120540 1 0 3 0x80 poll dhclient | ||
90869 146685 0 0 3 0x14200 pgzero zerothread | ||
77478 110648 0 0 3 0x14200 aiodoned aiodoned | ||
34550 176553 0 0 3 0x14200 syncer update | ||
35956 197650 0 0 3 0x14200 cleaner cleaner | ||
18857 488539 0 0 3 0x14200 reaper reaper | ||
63309 330054 0 0 3 0x14200 pgdaemon pagedaemon | ||
15062 406257 0 0 3 0x14200 bored crynlk | ||
10524 297456 0 0 3 0x14200 bored crypto | ||
48948 175157 0 0 3 0x40014200 acpi0 acpi0 | ||
23276 4812 0 0 3 0x14200 bored softnet | ||
57663 61073 0 0 3 0x14200 bored systqmp | ||
66065 347853 0 0 3 0x14200 bored systq | ||
83022 308144 0 0 3 0x40014200 bored softclock | ||
63171 372030 0 0 3 0x40014200 idle0 | ||
1 28015 0 0 3 0x82 wait init | ||
0 0 -1 0 3 0x10200 scheduler swapper |