protection_fault: sosend
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syzbot
May 15, 2024, 7:55:30 PMMay 15
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: e298eee01736 sync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=16c0b182980000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=7e73d1b6f1af84136956
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/47092e314e07/disk-e298eee0.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/616f2fa5dec5/bsd-e298eee0.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/84625ff9519a/kernel-e298eee0.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7e73d1...@syzkaller.appspotmail.com
�Hz � ��e��n�S^ ���E��ڛ� -�,0[� ����끲�� mKS�Mڮkernel: protection fault trap, code=0
Stopped at sosend+0x349: movzwl 0x12(%rax),%r15d
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
the kernel did not panic
ddb{1}> trace
sosend(ffff800000e56fe8,0,ffff80002b28aa68,0,0,0) at sosend+0x349 sys/kern/uipc_socket.c:624
fifo_write(ffff80002b28a9b0) at fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
VOP_WRITE(fffffd8077145dd8,ffff80002b28aa68,3,fffffd807f7d37b8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff5738,fffffd8077145dd8,fffffd807f7d37b8,ffff80002b28ab38,ffff80002b28ab10) at ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 sys/kern/kern_ktrace.c:308
sys_nanosleep(ffff8000ffff5738,ffff80002b28ad70,ffff80002b28acc0) at sys_nanosleep+0xc1 sys/kern/kern_time.c:288
syscall(ffff80002b28ad70) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff80002b28ad70) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ab05425b0e0, count: -8
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80002b28a960
rbx 0
rdx 0
rcx 0xffff8000ffff5738
rax 0xb1bd95750d60a503
r8 0
r9 0x1
r10 0
r11 0xbdbc93d1af866c1b
r12 0x5c
r13 0
r14 0xffff800000e56fe8
r15 0
rip 0xffffffff8109c509 sosend+0x349
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002b28a890
ss 0
sosend+0x349: movzwl 0x12(%rax),%r15d
ddb{1}> show proc
PROC (syz-executor.5) tid=200888 pid=84909 tcnt=1 stat=onproc
flags process=8000002<EXEC> proc=1<INKTR>
runpri=24, usrpri=74, slppri=24, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff8000ffff4548,0xffff8000ffff5228
process=0xffff8000ffff2c78 user=0xffff80002b285000, vmspace=0xfffffd8008b96c08
estcpu=24, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
8459 88134 49160 0 2 0x8000000 syz-executor.7
80909 354736 6990 0 2 0x8000081 syz-executor.4
80909 518412 6990 0 3 0xc000080 fifor syz-executor.4
56081 28652 1986 0 2 0x8000000 syz-executor.0
56081 438893 1986 0 3 0xc000080 bell syz-executor.0
56081 429905 1986 0 2 0xc000000 syz-executor.0
49765 419710 74638 0 2 0x8000480 syz-executor.1
49765 138 74638 0 3 0xc000000 clonelk syz-executor.1
49765 418427 74638 0 3 0xc000080 fsleep syz-executor.1
49160 21755 7621 0 3 0x8000082 nanoslp syz-executor.7
74638 113004 7621 0 2 0x8000482 syz-executor.1
35355 90623 0 0 3 0x14200 bored sosplice
1986 399762 7621 0 2 0x8000482 syz-executor.0
45465 240650 1 0 3 0x18100083 ttyin getty
*84909 200888 7621 0 7 0x8000003 syz-executor.5
6990 186603 7621 0 2 0x8000482 syz-executor.4
15747 280543 7621 0 2 0x8000002 syz-executor.6
81780 485951 7621 0 2 0x8000482 syz-executor.2
7621 426939 68502 0 3 0x1a000082 wait syz-fuzzer
7621 281793 68502 0 2 0x1e000482 syz-fuzzer
7621 394537 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 171167 68502 0 3 0x1e000082 wait syz-fuzzer
7621 236083 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 442246 68502 0 3 0x1e000082 wait syz-fuzzer
7621 394529 68502 0 3 0x1e000082 wait syz-fuzzer
7621 421218 68502 0 2 0x1e000082 syz-fuzzer
7621 275946 68502 0 3 0x1e000082 wait syz-fuzzer
7621 83751 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 313444 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 39119 68502 0 3 0x1e000082 wait syz-fuzzer
7621 388583 68502 0 3 0x1e000082 wait syz-fuzzer
7621 39010 68502 0 3 0x1e000082 kqread syz-fuzzer
7621 252216 68502 0 3 0x1e000082 wait syz-fuzzer
7621 440696 68502 0 3 0x1e000082 thrsleep syz-fuzzer
68502 319320 30981 0 3 0x810008a sigsusp ksh
30981 350473 64601 0 3 0x1800009a kqread sshd
64601 197399 1 0 3 0x18000088 kqread sshd
47034 168263 24430 73 3 0x19100090 kqread syslogd
24430 121266 1 0 3 0x18100082 sbwait syslogd
65763 59183 1 0 3 0x18100080 kqread resolvd
85245 120293 4655 77 3 0x18100092 kqread dhcpleased
86780 224543 4655 77 3 0x18100092 kqread dhcpleased
4655 517591 1 0 3 0x18000080 kqread dhcpleased
15474 35605 0 0 3 0x14200 pause smr
75263 475649 0 0 2 0x14200 zerothread
95522 122413 0 0 3 0x14200 aiodoned aiodoned
61257 121742 0 0 3 0x14200 syncer update
51156 512762 0 0 3 0x14200 cleaner cleaner
62411 296332 0 0 3 0x14200 reaper reaper
72268 315193 0 0 3 0x14200 pgdaemon pagedaemon
52744 183336 0 0 3 0x14200 bored viomb
61328 319716 0 0 3 0x40014200 acpi0 acpi0
82937 181437 0 0 3 0x40014200 idle1
78536 164222 0 0 3 0x14200 bored softnet3
40051 394877 0 0 3 0x14200 bored softnet2
43956 412437 0 0 3 0x14200 bored softnet1
79103 189284 0 0 2 0x14200 softnet0
90620 223027 0 0 3 0x14200 bored systqmp
2364 162327 0 0 3 0x14200 bored systq
48621 316495 0 0 2 0x14200 softclockmp
82589 232858 0 0 7 0x40014200 softclock
10783 302005 0 0 3 0x40014200 idle0
1 158302 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex sbsnd r = 0 (0xffff800000e571c0)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 mtx_enter_try+0x103
#2 mtx_enter+0x4e sys/kern/kern_lock.c:266
#3 sosend+0x2ee sys/kern/uipc_socket.c:615
#4 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#5 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#6 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#7 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#7 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#8 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#9 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#9 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#10 Xsyscall+0x128
Process 84909 (syz-executor.5) thread 0xffff8000ffff5738 (200888)
exclusive rwlock sbufsnd r = 0 (0xffff800000e57190)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2 sblock+0xfa sys/kern/uipc_socket2.c:555
#3 sosend+0x294 sys/kern/uipc_socket.c:612
#4 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#5 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#6 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#7 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#7 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#8 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#9 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#9 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#10 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82da79b8)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x491 sys/kern/sched_bsd.c:470
#3 sleep_finish+0x19a sys/kern/kern_synch.c:417
#4 msleep+0xeb sys/kern/kern_synch.c:249
#5 sosend+0x96a
#6 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#7 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#8 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#9 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#9 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#10 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#11 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#11 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#12 Xsyscall+0x128
exclusive mutex sbsnd r = 0 (0xffff800000e571c0)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 mtx_enter_try+0x103
#2 mtx_enter+0x4e sys/kern/kern_lock.c:266
#3 sosend+0x2ee sys/kern/uipc_socket.c:615
#4 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#5 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#6 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#7 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#7 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#8 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#9 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#9 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#10 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10202 6747K 7119K 166960K 12001 0
pcb 17 12K 12K 166960K 74 0
rtable 214 6K 7K 166960K 596 0
pf 27 8K 10K 166960K 56 0
ifaddr 40 14K 15K 166960K 74 0
ifgroup 46 2K 2K 166960K 76 0
sysctl 3 0K 1K 166960K 4 0
counters 62 36K 36K 166960K 80 0
ioctlops 0 0K 4K 166960K 1509 0
iov 0 0K 12K 166960K 20 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1371 86K 87K 166960K 1819 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 13 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 41 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 14 49K 77K 166960K 649 0
sigio 0 0K 0K 166960K 5 0
proc 58 79K 115K 166960K 658 0
subproc 104 6K 6K 166960K 169 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 78 0
in_multi 88 6K 7K 166960K 179 0
ether_multi 1 0K 0K 166960K 15 0
mrt 1 0K 0K 166960K 6 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 79 360K 360K 166960K 79 0
exec 0 0K 1K 166960K 548 0
pfkey data 0 0K 1K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 265 76K 95K 166960K 8073 0
UVM aobj 18 2K 4K 166960K 24 0
pinsyscall 34 68K 100K 166960K 1959 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 24 0
NDP 10 0K 2K 166960K 45 0
temp 57 6815K 7308K 166960K 21972 0
kqueue 12 18K 26K 166960K 109 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 92 0 89 1 0 1 1 0 8 0
rtentry 112 195 0 97 4 0 4 4 0 8 0
unpcb 144 318 0 302 1 0 1 1 0 8 0
syncache 336 6 0 6 3 3 0 1 0 8 0
tcpcb 808 157 0 149 4 2 2 2 0 8 1
arp 120 36 0 20 1 0 1 1 0 8 0
inpcb 384 535 0 523 8 6 2 3 0 8 0
nd6 136 44 0 21 1 0 1 1 0 8 0
pkpcb 40 4 0 4 2 1 1 1 0 8 1
kcovpl 48 13 0 5 1 0 1 1 0 8 0
ppxss 1168 3 0 3 3 2 1 1 0 8 1
pffrag 232 7 0 3 1 0 1 1 0 482 0
pffrnode 88 5 0 2 1 0 1 1 0 8 0
pffrent 40 52 0 48 1 0 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 76 0 42 1 0 1 1 0 8 0
pfstkey 128 76 0 42 2 0 2 2 0 8 0
pfstate 376 76 0 42 4 0 4 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 256 725 0 308 33 6 27 29 0 8 0
art_table 32 726 0 308 4 0 4 4 0 8 0
art_node 16 192 0 104 1 0 1 1 0 8 0
sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0
semapl 112 38 0 28 1 0 1 1 0 8 0
shmpl 112 21 0 6 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 2390 0 870 96 0 96 96 0 8 0
ffsino 272 2390 0 870 102 0 102 102 0 8 0
nchpl 144 3420 0 1681 67 0 67 67 0 8 0
uvmvnodes 80 2804 0 0 58 0 58 58 0 8 0
vnodes 216 2804 0 0 156 0 156 156 0 8 0
namei 1024 11850 0 11850 6 5 1 2 0 8 1
percpumem 16 54 0 9 1 0 1 1 0 8 0
vcpupl 3904 1 0 0 1 0 1 1 0 8 0
vmpool 696 3 0 2 2 1 1 1 0 8 0
kstatmem 264 38 0 18 2 0 2 2 0 8 0
scsiplug 72 1 0 1 1 1 0 1 0 8 0
scxspl 216 19117 0 19117 12 11 1 8 1 8 1
plimitpl 152 126 0 111 1 0 1 1 0 8 0
sigapl 424 956 0 910 6 0 6 6 0 8 0
futexpl 64 7785 0 7784 4 3 1 1 0 8 0
knotepl 120 376 0 0 11 0 11 11 0 8 0
kqueuepl 216 179 0 171 1 0 1 1 0 8 0
pipepl 320 222 0 194 3 0 3 3 0 8 0
fdescpl 496 937 0 912 6 2 4 5 0 8 0
filepl 152 4971 0 4723 15 4 11 11 0 8 0
lockfpl 104 133 0 129 1 0 1 1 0 8 0
lockfspl 48 63 0 59 1 0 1 1 0 8 0
sessionpl 144 29 0 13 1 0 1 1 0 8 0
pgrppl 48 40 0 24 1 0 1 1 0 8 0
ucredpl 104 666 0 656 1 0 1 1 0 8 0
zombiepl 144 913 0 910 2 1 1 1 0 8 0
processpl 1136 956 0 910 4 0 4 4 0 8 0
procpl 656 1586 0 1520 9 2 7 8 0 8 0
srpgc 96 6 0 6 3 3 0 1 0 8 0
sosppl 168 10 0 10 4 3 1 1 0 8 1
sockpl 664 955 0 925 12 8 4 4 0 8 1
mcl64k 65536 1 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k 2048 339 0 0 43 0 43 43 0 8 0
mtagpl 96 6 0 0 1 0 1 1 0 8 0
mbufpl 256 989 0 0 63 1 62 62 0 8 0
bufpl 280 7264 0 819 461 0 461 461 0 8 0
anonpl 24 267026 0 261216 78 10 68 68 0 186 6
amapchunkpl 152 27061 0 26454 50 12 38 38 0 158 10
amappl16 200 6896 0 6761 36 16 20 24 0 8 8
amappl15 192 13 0 13 2 2 0 1 0 8 0
amappl14 184 221 0 209 2 1 1 2 0 8 0
amappl13 176 17 0 17 1 1 0 1 0 8 0
amappl12 168 1676 0 1649 2 0 2 2 0 8 0
amappl11 160 98 0 87 1 0 1 1 0 8 0
amappl10 152 47 0 38 1 0 1 1 0 8 0
amappl9 144 165 0 164 1 0 1 1 0 8 0
amappl8 136 199 0 163 2 0 2 2 0 8 0
amappl7 128 57 0 43 1 0 1 1 0 8 0
amappl6 120 397 0 382 2 1 1 2 0 8 0
amappl5 112 182 0 170 1 0 1 1 0 8 0
amappl4 104 601 0 569 2 0 2 2 0 8 0
amappl3 96 5643 0 5576 3 0 3 3 0 8 0
amappl2 88 1379 0 1312 3 1 2 3 0 8 0
amappl1 80 11661 0 11180 22 10 12 22 0 8 0
amappl 88 7449 0 7276 6 1 5 6 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 23 0 6 1 0 1 1 0 8 0
uaddrrnd 24 940 0 914 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 940 0 914 1 0 1 1 0 8 0
vmmpekpl 168 11679 0 11623 3 0 3 3 0 8 0
vmmpepl 168 80401 0 78670 139 39 100 113 0 357 6
vmsppl 440 939 0 914 4 0 4 4 0 8 0
rwobjpl 56 29663 0 25791 62 3 59 59 0 8 3
pdppl 4096 1887 0 1829 134 70 64 71 0 8 6
pvpl 32 44559 0 0 362 2 360 361 0 265 0
pmappl 248 939 0 914 3 1 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 498 0 91 12 0 12 12 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
ddb{0}> trace
x86_ipi_db(ffffffff82ce2ff0) 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(ffffffff82da77b0) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82da77b0) at __mp_lock+0x129 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82da77b0,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x491 sys/kern/sched_bsd.c:470
sleep_finish(0,1) at sleep_finish+0x19a sys/kern/kern_synch.c:417
msleep(ffffffff82d7c140,ffffffff82c99c00,0,ffffffff8295a57e,0) at msleep+0xeb sys/kern/kern_synch.c:249
softclock_thread(ffff8000fffff710) at softclock_thread+0xcf sys/kern/kern_timeout.c:810
end trace frame: 0x0, count: -9
ddb{0}> machine ddbcpu 1
Stopped at sosend+0x349: movzwl 0x12(%rax),%r15d
ddb{1}> trace
sosend(ffff800000e56fe8,0,ffff80002b28aa68,0,0,0) at sosend+0x349 sys/kern/uipc_socket.c:624
fifo_write(ffff80002b28a9b0) at fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
VOP_WRITE(fffffd8077145dd8,ffff80002b28aa68,3,fffffd807f7d37b8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff5738,fffffd8077145dd8,fffffd807f7d37b8,ffff80002b28ab38,ffff80002b28ab10) at ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 sys/kern/kern_ktrace.c:308
sys_nanosleep(ffff8000ffff5738,ffff80002b28ad70,ffff80002b28acc0) at sys_nanosleep+0xc1 sys/kern/kern_time.c:288
syscall(ffff80002b28ad70) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff80002b28ad70) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ab05425b0e0, count: -8
---
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syzbot found the following issue on:
HEAD commit: e298eee01736 sync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=16c0b182980000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=7e73d1b6f1af84136956
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/47092e314e07/disk-e298eee0.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/616f2fa5dec5/bsd-e298eee0.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/84625ff9519a/kernel-e298eee0.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7e73d1...@syzkaller.appspotmail.com
�Hz � ��e��n�S^ ���E��ڛ� -�,0[� ����끲�� mKS�Mڮkernel: protection fault trap, code=0
Stopped at sosend+0x349: movzwl 0x12(%rax),%r15d
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
the kernel did not panic
ddb{1}> trace
sosend(ffff800000e56fe8,0,ffff80002b28aa68,0,0,0) at sosend+0x349 sys/kern/uipc_socket.c:624
fifo_write(ffff80002b28a9b0) at fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
VOP_WRITE(fffffd8077145dd8,ffff80002b28aa68,3,fffffd807f7d37b8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff5738,fffffd8077145dd8,fffffd807f7d37b8,ffff80002b28ab38,ffff80002b28ab10) at ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 sys/kern/kern_ktrace.c:308
sys_nanosleep(ffff8000ffff5738,ffff80002b28ad70,ffff80002b28acc0) at sys_nanosleep+0xc1 sys/kern/kern_time.c:288
syscall(ffff80002b28ad70) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff80002b28ad70) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ab05425b0e0, count: -8
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80002b28a960
rbx 0
rdx 0
rcx 0xffff8000ffff5738
rax 0xb1bd95750d60a503
r8 0
r9 0x1
r10 0
r11 0xbdbc93d1af866c1b
r12 0x5c
r13 0
r14 0xffff800000e56fe8
r15 0
rip 0xffffffff8109c509 sosend+0x349
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002b28a890
ss 0
sosend+0x349: movzwl 0x12(%rax),%r15d
ddb{1}> show proc
PROC (syz-executor.5) tid=200888 pid=84909 tcnt=1 stat=onproc
flags process=8000002<EXEC> proc=1<INKTR>
runpri=24, usrpri=74, slppri=24, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff8000ffff4548,0xffff8000ffff5228
process=0xffff8000ffff2c78 user=0xffff80002b285000, vmspace=0xfffffd8008b96c08
estcpu=24, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
8459 88134 49160 0 2 0x8000000 syz-executor.7
80909 354736 6990 0 2 0x8000081 syz-executor.4
80909 518412 6990 0 3 0xc000080 fifor syz-executor.4
56081 28652 1986 0 2 0x8000000 syz-executor.0
56081 438893 1986 0 3 0xc000080 bell syz-executor.0
56081 429905 1986 0 2 0xc000000 syz-executor.0
49765 419710 74638 0 2 0x8000480 syz-executor.1
49765 138 74638 0 3 0xc000000 clonelk syz-executor.1
49765 418427 74638 0 3 0xc000080 fsleep syz-executor.1
49160 21755 7621 0 3 0x8000082 nanoslp syz-executor.7
74638 113004 7621 0 2 0x8000482 syz-executor.1
35355 90623 0 0 3 0x14200 bored sosplice
1986 399762 7621 0 2 0x8000482 syz-executor.0
45465 240650 1 0 3 0x18100083 ttyin getty
*84909 200888 7621 0 7 0x8000003 syz-executor.5
6990 186603 7621 0 2 0x8000482 syz-executor.4
15747 280543 7621 0 2 0x8000002 syz-executor.6
81780 485951 7621 0 2 0x8000482 syz-executor.2
7621 426939 68502 0 3 0x1a000082 wait syz-fuzzer
7621 281793 68502 0 2 0x1e000482 syz-fuzzer
7621 394537 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 171167 68502 0 3 0x1e000082 wait syz-fuzzer
7621 236083 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 442246 68502 0 3 0x1e000082 wait syz-fuzzer
7621 394529 68502 0 3 0x1e000082 wait syz-fuzzer
7621 421218 68502 0 2 0x1e000082 syz-fuzzer
7621 275946 68502 0 3 0x1e000082 wait syz-fuzzer
7621 83751 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 313444 68502 0 3 0x1e000082 thrsleep syz-fuzzer
7621 39119 68502 0 3 0x1e000082 wait syz-fuzzer
7621 388583 68502 0 3 0x1e000082 wait syz-fuzzer
7621 39010 68502 0 3 0x1e000082 kqread syz-fuzzer
7621 252216 68502 0 3 0x1e000082 wait syz-fuzzer
7621 440696 68502 0 3 0x1e000082 thrsleep syz-fuzzer
68502 319320 30981 0 3 0x810008a sigsusp ksh
30981 350473 64601 0 3 0x1800009a kqread sshd
64601 197399 1 0 3 0x18000088 kqread sshd
47034 168263 24430 73 3 0x19100090 kqread syslogd
24430 121266 1 0 3 0x18100082 sbwait syslogd
65763 59183 1 0 3 0x18100080 kqread resolvd
85245 120293 4655 77 3 0x18100092 kqread dhcpleased
86780 224543 4655 77 3 0x18100092 kqread dhcpleased
4655 517591 1 0 3 0x18000080 kqread dhcpleased
15474 35605 0 0 3 0x14200 pause smr
75263 475649 0 0 2 0x14200 zerothread
95522 122413 0 0 3 0x14200 aiodoned aiodoned
61257 121742 0 0 3 0x14200 syncer update
51156 512762 0 0 3 0x14200 cleaner cleaner
62411 296332 0 0 3 0x14200 reaper reaper
72268 315193 0 0 3 0x14200 pgdaemon pagedaemon
52744 183336 0 0 3 0x14200 bored viomb
61328 319716 0 0 3 0x40014200 acpi0 acpi0
82937 181437 0 0 3 0x40014200 idle1
78536 164222 0 0 3 0x14200 bored softnet3
40051 394877 0 0 3 0x14200 bored softnet2
43956 412437 0 0 3 0x14200 bored softnet1
79103 189284 0 0 2 0x14200 softnet0
90620 223027 0 0 3 0x14200 bored systqmp
2364 162327 0 0 3 0x14200 bored systq
48621 316495 0 0 2 0x14200 softclockmp
82589 232858 0 0 7 0x40014200 softclock
10783 302005 0 0 3 0x40014200 idle0
1 158302 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex sbsnd r = 0 (0xffff800000e571c0)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 mtx_enter_try+0x103
#2 mtx_enter+0x4e sys/kern/kern_lock.c:266
#3 sosend+0x2ee sys/kern/uipc_socket.c:615
#4 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#5 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#6 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#7 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#7 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#8 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#9 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#9 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#10 Xsyscall+0x128
Process 84909 (syz-executor.5) thread 0xffff8000ffff5738 (200888)
exclusive rwlock sbufsnd r = 0 (0xffff800000e57190)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 rw_enter+0x32d sys/kern/kern_rwlock.c:309
#2 sblock+0xfa sys/kern/uipc_socket2.c:555
#3 sosend+0x294 sys/kern/uipc_socket.c:612
#4 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#5 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#6 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#7 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#7 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#8 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#9 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#9 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#10 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82da79b8)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x491 sys/kern/sched_bsd.c:470
#3 sleep_finish+0x19a sys/kern/kern_synch.c:417
#4 msleep+0xeb sys/kern/kern_synch.c:249
#5 sosend+0x96a
#6 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#7 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#8 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#9 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#9 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#10 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#11 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#11 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#12 Xsyscall+0x128
exclusive mutex sbsnd r = 0 (0xffff800000e571c0)
#0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x446 sys/kern/subr_witness.c:1157
#1 mtx_enter_try+0x103
#2 mtx_enter+0x4e sys/kern/kern_lock.c:266
#3 sosend+0x2ee sys/kern/uipc_socket.c:615
#4 fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
#5 VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
#6 ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
#7 ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
#7 ktrstruct+0x169 sys/kern/kern_ktrace.c:308
#8 sys_nanosleep+0xc1 sys/kern/kern_time.c:288
#9 syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
#9 syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
#10 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10202 6747K 7119K 166960K 12001 0
pcb 17 12K 12K 166960K 74 0
rtable 214 6K 7K 166960K 596 0
pf 27 8K 10K 166960K 56 0
ifaddr 40 14K 15K 166960K 74 0
ifgroup 46 2K 2K 166960K 76 0
sysctl 3 0K 1K 166960K 4 0
counters 62 36K 36K 166960K 80 0
ioctlops 0 0K 4K 166960K 1509 0
iov 0 0K 12K 166960K 20 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1371 86K 87K 166960K 1819 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 13 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 41 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 14 49K 77K 166960K 649 0
sigio 0 0K 0K 166960K 5 0
proc 58 79K 115K 166960K 658 0
subproc 104 6K 6K 166960K 169 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 78 0
in_multi 88 6K 7K 166960K 179 0
ether_multi 1 0K 0K 166960K 15 0
mrt 1 0K 0K 166960K 6 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 79 360K 360K 166960K 79 0
exec 0 0K 1K 166960K 548 0
pfkey data 0 0K 1K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 265 76K 95K 166960K 8073 0
UVM aobj 18 2K 4K 166960K 24 0
pinsyscall 34 68K 100K 166960K 1959 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 24 0
NDP 10 0K 2K 166960K 45 0
temp 57 6815K 7308K 166960K 21972 0
kqueue 12 18K 26K 166960K 109 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 92 0 89 1 0 1 1 0 8 0
rtentry 112 195 0 97 4 0 4 4 0 8 0
unpcb 144 318 0 302 1 0 1 1 0 8 0
syncache 336 6 0 6 3 3 0 1 0 8 0
tcpcb 808 157 0 149 4 2 2 2 0 8 1
arp 120 36 0 20 1 0 1 1 0 8 0
inpcb 384 535 0 523 8 6 2 3 0 8 0
nd6 136 44 0 21 1 0 1 1 0 8 0
pkpcb 40 4 0 4 2 1 1 1 0 8 1
kcovpl 48 13 0 5 1 0 1 1 0 8 0
ppxss 1168 3 0 3 3 2 1 1 0 8 1
pffrag 232 7 0 3 1 0 1 1 0 482 0
pffrnode 88 5 0 2 1 0 1 1 0 8 0
pffrent 40 52 0 48 1 0 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 76 0 42 1 0 1 1 0 8 0
pfstkey 128 76 0 42 2 0 2 2 0 8 0
pfstate 376 76 0 42 4 0 4 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 256 725 0 308 33 6 27 29 0 8 0
art_table 32 726 0 308 4 0 4 4 0 8 0
art_node 16 192 0 104 1 0 1 1 0 8 0
sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0
semapl 112 38 0 28 1 0 1 1 0 8 0
shmpl 112 21 0 6 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 2390 0 870 96 0 96 96 0 8 0
ffsino 272 2390 0 870 102 0 102 102 0 8 0
nchpl 144 3420 0 1681 67 0 67 67 0 8 0
uvmvnodes 80 2804 0 0 58 0 58 58 0 8 0
vnodes 216 2804 0 0 156 0 156 156 0 8 0
namei 1024 11850 0 11850 6 5 1 2 0 8 1
percpumem 16 54 0 9 1 0 1 1 0 8 0
vcpupl 3904 1 0 0 1 0 1 1 0 8 0
vmpool 696 3 0 2 2 1 1 1 0 8 0
kstatmem 264 38 0 18 2 0 2 2 0 8 0
scsiplug 72 1 0 1 1 1 0 1 0 8 0
scxspl 216 19117 0 19117 12 11 1 8 1 8 1
plimitpl 152 126 0 111 1 0 1 1 0 8 0
sigapl 424 956 0 910 6 0 6 6 0 8 0
futexpl 64 7785 0 7784 4 3 1 1 0 8 0
knotepl 120 376 0 0 11 0 11 11 0 8 0
kqueuepl 216 179 0 171 1 0 1 1 0 8 0
pipepl 320 222 0 194 3 0 3 3 0 8 0
fdescpl 496 937 0 912 6 2 4 5 0 8 0
filepl 152 4971 0 4723 15 4 11 11 0 8 0
lockfpl 104 133 0 129 1 0 1 1 0 8 0
lockfspl 48 63 0 59 1 0 1 1 0 8 0
sessionpl 144 29 0 13 1 0 1 1 0 8 0
pgrppl 48 40 0 24 1 0 1 1 0 8 0
ucredpl 104 666 0 656 1 0 1 1 0 8 0
zombiepl 144 913 0 910 2 1 1 1 0 8 0
processpl 1136 956 0 910 4 0 4 4 0 8 0
procpl 656 1586 0 1520 9 2 7 8 0 8 0
srpgc 96 6 0 6 3 3 0 1 0 8 0
sosppl 168 10 0 10 4 3 1 1 0 8 1
sockpl 664 955 0 925 12 8 4 4 0 8 1
mcl64k 65536 1 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k 2048 339 0 0 43 0 43 43 0 8 0
mtagpl 96 6 0 0 1 0 1 1 0 8 0
mbufpl 256 989 0 0 63 1 62 62 0 8 0
bufpl 280 7264 0 819 461 0 461 461 0 8 0
anonpl 24 267026 0 261216 78 10 68 68 0 186 6
amapchunkpl 152 27061 0 26454 50 12 38 38 0 158 10
amappl16 200 6896 0 6761 36 16 20 24 0 8 8
amappl15 192 13 0 13 2 2 0 1 0 8 0
amappl14 184 221 0 209 2 1 1 2 0 8 0
amappl13 176 17 0 17 1 1 0 1 0 8 0
amappl12 168 1676 0 1649 2 0 2 2 0 8 0
amappl11 160 98 0 87 1 0 1 1 0 8 0
amappl10 152 47 0 38 1 0 1 1 0 8 0
amappl9 144 165 0 164 1 0 1 1 0 8 0
amappl8 136 199 0 163 2 0 2 2 0 8 0
amappl7 128 57 0 43 1 0 1 1 0 8 0
amappl6 120 397 0 382 2 1 1 2 0 8 0
amappl5 112 182 0 170 1 0 1 1 0 8 0
amappl4 104 601 0 569 2 0 2 2 0 8 0
amappl3 96 5643 0 5576 3 0 3 3 0 8 0
amappl2 88 1379 0 1312 3 1 2 3 0 8 0
amappl1 80 11661 0 11180 22 10 12 22 0 8 0
amappl 88 7449 0 7276 6 1 5 6 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 23 0 6 1 0 1 1 0 8 0
uaddrrnd 24 940 0 914 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 940 0 914 1 0 1 1 0 8 0
vmmpekpl 168 11679 0 11623 3 0 3 3 0 8 0
vmmpepl 168 80401 0 78670 139 39 100 113 0 357 6
vmsppl 440 939 0 914 4 0 4 4 0 8 0
rwobjpl 56 29663 0 25791 62 3 59 59 0 8 3
pdppl 4096 1887 0 1829 134 70 64 71 0 8 6
pvpl 32 44559 0 0 362 2 360 361 0 265 0
pmappl 248 939 0 914 3 1 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 498 0 91 12 0 12 12 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
ddb{0}> trace
x86_ipi_db(ffffffff82ce2ff0) 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(ffffffff82da77b0) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82da77b0) at __mp_lock+0x129 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82da77b0,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x491 sys/kern/sched_bsd.c:470
sleep_finish(0,1) at sleep_finish+0x19a sys/kern/kern_synch.c:417
msleep(ffffffff82d7c140,ffffffff82c99c00,0,ffffffff8295a57e,0) at msleep+0xeb sys/kern/kern_synch.c:249
softclock_thread(ffff8000fffff710) at softclock_thread+0xcf sys/kern/kern_timeout.c:810
end trace frame: 0x0, count: -9
ddb{0}> machine ddbcpu 1
Stopped at sosend+0x349: movzwl 0x12(%rax),%r15d
ddb{1}> trace
sosend(ffff800000e56fe8,0,ffff80002b28aa68,0,0,0) at sosend+0x349 sys/kern/uipc_socket.c:624
fifo_write(ffff80002b28a9b0) at fifo_write+0x7a sys/miscfs/fifofs/fifo_vnops.c:283
VOP_WRITE(fffffd8077145dd8,ffff80002b28aa68,3,fffffd807f7d37b8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000ffff5738,fffffd8077145dd8,fffffd807f7d37b8,ffff80002b28ab38,ffff80002b28ab10) at ktrwriteraw+0x16b sys/kern/kern_ktrace.c:682
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline]
ktrstruct(ffff8000ffff5738,ffffffff82872f41,ffff80002b28ac30,10) at ktrstruct+0x169 sys/kern/kern_ktrace.c:308
sys_nanosleep(ffff8000ffff5738,ffff80002b28ad70,ffff80002b28acc0) at sys_nanosleep+0xc1 sys/kern/kern_time.c:288
syscall(ffff80002b28ad70) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff80002b28ad70) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ab05425b0e0, count: -8
---
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