panic: timeout_add: to_ticks < 0
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syzbot
Feb 15, 2019, 8:12:03 PM2/15/19
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 9a029001a5d5 With an opportunistic check performed at ever..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=134e8c8f400000
kernel config: https://syzkaller.appspot.com/x/.config?x=fa145722143cbd64
dashboard link: https://syzkaller.appspot.com/bug?extid=23089c40a85aa70bed6f
compiler:
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+23089c...@syzkaller.appspotmail.com
panic: timeout_add: to_ticks (-973078528) < 0
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*378549 35955 0 0 0x4000000 1K syz-executor.1
452925 42658 0 0x2 0x480 0 syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:399
panic() at panic+0x174 sys/kern/subr_prf.c:208
timeout_add(ffff80000066d060,c6000000) at timeout_add+0x194
sys/kern/kern_timeout.c:190
pcppi_bell(ffff80000066d000,2,c6000000,1) at pcppi_bell+0x2a0
sys/dev/isa/pcppi.c:234
spkrioctl(1b00,20005302,ffff800020c0bb90,46,ffff800020b43080) at
spkrioctl+0x230 tone sys/dev/isa/spkr.c:89 [inline]
spkrioctl(1b00,20005302,ffff800020c0bb90,46,ffff800020b43080) at
spkrioctl+0x230 sys/dev/isa/spkr.c:503
VOP_IOCTL(fffffd8070203e58,20005302,ffff800020c0bb90,46,fffffd807f7c7a80,ffff800020b43080)
at
VOP_IOCTL+0x9a sys/kern/vfs_vops.c:290
vn_ioctl(fffffd8068314ad0,20005302,ffff800020c0bb90,ffff800020b43080) at
vn_ioctl+0xc9 sys/kern/vfs_vnops.c:512
sys_ioctl(ffff800020b43080,ffff800020c0bcd8,ffff800020c0bcc0) at
sys_ioctl+0x646
syscall(ffff800020c0bd70) at syscall+0x5ac mi_syscall
sys/sys/syscall_mi.h:99 [inline]
syscall(ffff800020c0bd70) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574
Xsyscall(6,0,ffffffffffffff88,0,3,3379de60010) at Xsyscall+0x128
end of kernel
end trace frame: 0x33a76fd7940, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
syzbot.
syzbot found the following crash on:
HEAD commit: 9a029001a5d5 With an opportunistic check performed at ever..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=134e8c8f400000
kernel config: https://syzkaller.appspot.com/x/.config?x=fa145722143cbd64
dashboard link: https://syzkaller.appspot.com/bug?extid=23089c40a85aa70bed6f
compiler:
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+23089c...@syzkaller.appspotmail.com
panic: timeout_add: to_ticks (-973078528) < 0
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*378549 35955 0 0 0x4000000 1K syz-executor.1
452925 42658 0 0x2 0x480 0 syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:399
panic() at panic+0x174 sys/kern/subr_prf.c:208
timeout_add(ffff80000066d060,c6000000) at timeout_add+0x194
sys/kern/kern_timeout.c:190
pcppi_bell(ffff80000066d000,2,c6000000,1) at pcppi_bell+0x2a0
sys/dev/isa/pcppi.c:234
spkrioctl(1b00,20005302,ffff800020c0bb90,46,ffff800020b43080) at
spkrioctl+0x230 tone sys/dev/isa/spkr.c:89 [inline]
spkrioctl(1b00,20005302,ffff800020c0bb90,46,ffff800020b43080) at
spkrioctl+0x230 sys/dev/isa/spkr.c:503
VOP_IOCTL(fffffd8070203e58,20005302,ffff800020c0bb90,46,fffffd807f7c7a80,ffff800020b43080)
at
VOP_IOCTL+0x9a sys/kern/vfs_vops.c:290
vn_ioctl(fffffd8068314ad0,20005302,ffff800020c0bb90,ffff800020b43080) at
vn_ioctl+0xc9 sys/kern/vfs_vnops.c:512
sys_ioctl(ffff800020b43080,ffff800020c0bcd8,ffff800020c0bcc0) at
sys_ioctl+0x646
syscall(ffff800020c0bd70) at syscall+0x5ac mi_syscall
sys/sys/syscall_mi.h:99 [inline]
syscall(ffff800020c0bd70) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574
Xsyscall(6,0,ffffffffffffff88,0,3,3379de60010) at Xsyscall+0x128
end of kernel
end trace frame: 0x33a76fd7940, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
syzbot.
syzbot
Feb 15, 2019, 8:28:03 PM2/15/19
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 9a029001a5d5 With an opportunistic check performed at ever..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=10dd02d4c00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d88358c00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+23089c...@syzkaller.appspotmail.com
login: panic: timeout_add: to_ticks (-973078528) < 0
spkrioctl+0x230 sys/dev/isa/spkr.c:503
VOP_IOCTL(fffffd806dc86328,20005302,ffff800020baf9a0,46,fffffd807f7c7ba0,ffff800020b95780)
at
VOP_IOCTL+0x9a sys/kern/vfs_vops.c:290
vn_ioctl(fffffd806fcae260,20005302,ffff800020baf9a0,ffff800020b95780) at
vn_ioctl+0xc9 sys/kern/vfs_vnops.c:512
sys_ioctl(ffff800020b95780,ffff800020bafae8,ffff800020bafad0) at
sys_ioctl+0x646
syscall(ffff800020bafb80) at syscall+0x5ac mi_syscall
sys/sys/syscall_mi.h:99 [inline]
syscall(ffff800020bafb80) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574
Xsyscall(6,0,7f7ffffdec48,0,1,7f7ffffdec58) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffdebe0, count: 5
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
timeout_add: to_ticks (-973078528) < 0
ddb{0}> trace
db_enter() at db_enter+24
panic() at panic+372
timeout_add(ffff80000066d060,c6000000) at timeout_add+404
pcppi_bell(ffff80000066d000,2,c6000000,1) at pcppi_bell+672
spkrioctl(1b00,20005302,ffff800020baf9a0,46,ffff800020b95780) at
spkrioctl+560
VOP_IOCTL(fffffd806dc86328,20005302,ffff800020baf9a0,46,fffffd807f7c7ba0,ffff800020b95780)
at
VOP_IOCTL+154
vn_ioctl(fffffd806fcae260,20005302,ffff800020baf9a0,ffff800020b95780) at
vn_ioctl+201
sys_ioctl(ffff800020b95780,ffff800020bafae8,ffff800020bafad0) at
sys_ioctl+1606
syscall(ffff800020bafb80) at syscall+1452
Xsyscall(6,0,7f7ffffdec48,0,1,7f7ffffdec58) at Xsyscall+296
end of kernel
end trace frame: 0x7f7ffffdebe0, count: -10
ddb{0}> show registers
rdi 0
rsi 1
rbp 18446603336770319808
rbx 18446603336770319984
rdx 18446744071594908300 apollo_pio_rec+35292
rcx 513
rax 1
r8 18446744071585311987 kprintf+387
r9 1
r10 8073321489258217710
r11 7775153245688640304
r12 206158430216
r13 18446603336770319824
r14 256
r15 1
rip 18446744071590259448 db_enter+24
cs 8
rflags 582
rsp 18446603336770319792
ss 16
db_enter+24: addq $8,%rsp
ddb{0}> show proc
PROC (syz-executor0986) pid=103427 stat=onproc
flags process=2<EXEC> proc=0
pri=21, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020b94970,0xffffffff82353980
process=0xffff800020b7a018 user=0xffff800020baa000,
vmspace=0xfffffd806e95a5a8
estcpu=0, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*70530 103427 74615 0 7 0x2 syz-executor0986
74615 284793 91374 0 3 0x10008a pause ksh
91374 308416 64493 0 3 0x92 select sshd
95183 37558 1 0 3 0x100083 ttyin getty
64493 320702 1 0 3 0x80 select sshd
14554 101440 72992 73 3 0x100090 kqread syslogd
72992 65000 1 0 3 0x100082 netio syslogd
40962 182229 1 77 3 0x100090 poll dhclient
33046 507663 1 0 3 0x80 poll dhclient
15953 205988 0 0 3 0x14200 pgzero zerothread
7975 2125 0 0 3 0x14200 aiodoned aiodoned
21326 506135 0 0 3 0x14200 syncer update
38522 30894 0 0 3 0x14200 cleaner cleaner
63059 353185 0 0 3 0x14200 reaper reaper
80464 167060 0 0 3 0x14200 pgdaemon pagedaemon
921 444563 0 0 3 0x14200 bored crynlk
42974 379657 0 0 3 0x14200 bored crypto
80774 31187 0 0 3 0x40014200 acpi0 acpi0
84264 487940 0 0 7 0x40014200 idle1
52599 283775 0 0 3 0x14200 bored softnet
50024 455837 0 0 3 0x14200 bored systqmp
8743 432458 0 0 3 0x14200 bored systq
15091 285970 0 0 3 0x40014200 bored softclock
48248 102016 0 0 3 0x40014200 idle0
1 180601 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 70530 (syz-executor0986) thread 0xffff800020b95780 (103427)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82309fb0) locked @
/syzkaller/managers/multicore/kernel/sys/kern/sched_bsd.c:436
#0 witness_lock+1418
#1 ___mp_acquire_count+103
#2 mi_switch+944
#3 sleep_finish+272
#4 sleep_finish_all+52
#5 tsleep+444
#6 spkrioctl+609
#7 VOP_IOCTL+154
#8 vn_ioctl+201
#9 sys_ioctl+1606
#10 syscall+1452
#11 Xsyscall+296
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9443 6315K 6316K 78643K 10530 0 0
pcb 23 9K 9K 78643K 55 0 0
rtable 61 2K 2K 78643K 115 0 0
ifaddr 21 7K 7K 78643K 21 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 2K 78643K 13 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1166 73K 73K 78643K 1172 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 1K 78643K 2 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1792 194K 288K 78643K 12592 0 0
file desc 1 0K 0K 78643K 1 0 0
proc 40 38K 46K 78643K 207 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 11 0K 0K 78643K 11 0 0
ether_multi 1 0K 0K 78643K 1 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 18 79K 79K 78643K 18 0 0
exec 0 0K 1K 78643K 150 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 47 2K 3K 78643K 658 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
NDP 3 0K 0K 78643K 3 0 0
temp 30 2347K 2411K 78643K 1695 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 2 0 0 1 0 1 1 0
8 0
inpcbpl 280 22 0 16 1 0 1 1 0
8 0
plimitpl 152 13 0 8 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
syncache 264 5 0 5 2 1 1 1 0
8 1
tcpcb 544 8 0 5 1 0 1 1 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 96 0 0 6 0 6 6 0
8 0
art_table 32 97 0 0 1 0 1 1 0
8 0
art_node 16 22 0 2 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1383 0 18 45 0 45 45 0
8 0
ffsino 272 1383 0 18 92 0 92 92 0
8 0
nchpl 144 1555 0 30 57 0 57 57 0
8 0
uvmvnodes 72 1392 0 0 26 0 26 26 0
8 0
vnodes 200 1392 0 0 74 0 74 74 0
8 0
namei 1024 3262 0 3262 3 2 1 1 0
8 1
percpumem 16 30 0 0 1 0 1 1 0
8 0
scxspl 192 2359 0 2359 7 6 1 6 0
8 1
sigapl 432 174 0 164 2 0 2 2 0
8 0
knotepl 112 5 0 0 1 0 1 1 0
8 0
kqueuepl 104 1 0 0 1 0 1 1 0
8 0
pipepl 112 114 0 107 3 2 1 1 0
8 0
fdescpl 488 175 0 164 2 0 2 2 0
8 0
filepl 152 808 0 765 2 0 2 2 0
8 0
lockfpl 104 6 0 6 1 1 0 1 0
8 0
lockfspl 32 3 0 3 1 1 0 1 0
8 0
sessionpl 112 17 0 9 1 0 1 1 0
8 0
pgrppl 48 17 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 164 0 164 3 2 1 1 0
8 1
processpl 840 189 0 164 4 0 4 4 0
8 0
procpl 600 189 0 164 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 2 0 0 1 0 1 1 0
8 0
mcl2k 2048 64 0 0 8 0 8 8 0
8 0
mtagpl 80 1 0 0 1 0 1 1 0
8 0
mbufpl 256 98 0 0 5 0 5 5 0
8 0
bufpl 256 1998 0 254 109 0 109 109 0
8 0
anonpl 16 16943 0 15856 7 1 6 6 0
125 1
amapchunkpl 152 504 0 469 2 0 2 2 0
158 0
amappl16 192 68 0 63 1 0 1 1 0
8 0
amappl15 184 1 0 0 1 0 1 1 0
8 0
amappl14 176 1 0 1 1 1 0 1 0
8 0
amappl13 168 16 0 13 1 0 1 1 0
8 0
amappl12 160 7 0 7 2 1 1 1 0
8 1
amappl11 152 172 0 163 1 0 1 1 0
8 0
amappl10 144 43 0 43 3 2 1 1 0
8 1
amappl9 136 205 0 204 1 0 1 1 0
8 0
amappl8 128 109 0 103 1 0 1 1 0
8 0
amappl7 120 29 0 25 1 0 1 1 0
8 0
amappl6 112 43 0 38 1 0 1 1 0
8 0
amappl5 104 138 0 126 1 0 1 1 0
8 0
amappl4 96 253 0 234 1 0 1 1 0
8 0
amappl3 88 112 0 107 1 0 1 1 0
8 0
amappl2 80 559 0 525 1 0 1 1 0
8 0
amappl1 72 11702 0 11313 15 5 10 15 0
8 0
amappl 72 372 0 353 1 0 1 1 0
75 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma64 64 259 0 259 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
aobjpl 64 1 0 0 1 0 1 1 0
8 0
uaddrrnd 24 175 0 164 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 175 0 164 1 0 1 1 0
8 0
vmmpekpl 168 5136 0 5116 1 0 1 1 0
8 0
vmmpepl 168 23507 0 22819 54 20 34 43 0
357 3
vmsppl 360 174 0 164 2 0 2 2 0
8 0
pdppl 4096 357 0 328 5 0 5 5 0
8 0
pvpl 32 69588 0 66880 40 14 26 26 0
265 3
pmappl 224 174 0 164 1 0 1 1 0
8 0
extentpl 40 39 0 25 1 0 1 1 0
8 0
phpool 112 236 0 4 7 0 7 7 0
8 0
ddb{0}>
HEAD commit: 9a029001a5d5 With an opportunistic check performed at ever..
git tree: openbsd
kernel config: https://syzkaller.appspot.com/x/.config?x=fa145722143cbd64
dashboard link: https://syzkaller.appspot.com/bug?extid=23089c40a85aa70bed6f
compiler:
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=133bf7ff400000
dashboard link: https://syzkaller.appspot.com/bug?extid=23089c40a85aa70bed6f
compiler:
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d88358c00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+23089c...@syzkaller.appspotmail.com
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*103427 70530 0 0x2 0 0K syz-executor0986
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:399
panic() at panic+0x174 sys/kern/subr_prf.c:208
timeout_add(ffff80000066d060,c6000000) at timeout_add+0x194
sys/kern/kern_timeout.c:190
pcppi_bell(ffff80000066d000,2,c6000000,1) at pcppi_bell+0x2a0
sys/dev/isa/pcppi.c:234
spkrioctl(1b00,20005302,ffff800020baf9a0,46,ffff800020b95780) at
panic() at panic+0x174 sys/kern/subr_prf.c:208
timeout_add(ffff80000066d060,c6000000) at timeout_add+0x194
sys/kern/kern_timeout.c:190
pcppi_bell(ffff80000066d000,2,c6000000,1) at pcppi_bell+0x2a0
sys/dev/isa/pcppi.c:234
spkrioctl+0x230 tone sys/dev/isa/spkr.c:89 [inline]
spkrioctl(1b00,20005302,ffff800020baf9a0,46,ffff800020b95780) at
spkrioctl+0x230 sys/dev/isa/spkr.c:503
VOP_IOCTL(fffffd806dc86328,20005302,ffff800020baf9a0,46,fffffd807f7c7ba0,ffff800020b95780)
at
VOP_IOCTL+0x9a sys/kern/vfs_vops.c:290
vn_ioctl(fffffd806fcae260,20005302,ffff800020baf9a0,ffff800020b95780) at
vn_ioctl+0xc9 sys/kern/vfs_vnops.c:512
sys_ioctl(ffff800020b95780,ffff800020bafae8,ffff800020bafad0) at
sys_ioctl+0x646
syscall(ffff800020bafb80) at syscall+0x5ac mi_syscall
sys/sys/syscall_mi.h:99 [inline]
syscall(ffff800020bafb80) at syscall+0x5ac sys/arch/amd64/amd64/trap.c:574
Xsyscall(6,0,7f7ffffdec48,0,1,7f7ffffdec58) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffdebe0, count: 5
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{0}>
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
timeout_add: to_ticks (-973078528) < 0
ddb{0}> trace
db_enter() at db_enter+24
panic() at panic+372
timeout_add(ffff80000066d060,c6000000) at timeout_add+404
pcppi_bell(ffff80000066d000,2,c6000000,1) at pcppi_bell+672
spkrioctl(1b00,20005302,ffff800020baf9a0,46,ffff800020b95780) at
spkrioctl+560
VOP_IOCTL(fffffd806dc86328,20005302,ffff800020baf9a0,46,fffffd807f7c7ba0,ffff800020b95780)
at
VOP_IOCTL+154
vn_ioctl(fffffd806fcae260,20005302,ffff800020baf9a0,ffff800020b95780) at
vn_ioctl+201
sys_ioctl(ffff800020b95780,ffff800020bafae8,ffff800020bafad0) at
sys_ioctl+1606
syscall(ffff800020bafb80) at syscall+1452
Xsyscall(6,0,7f7ffffdec48,0,1,7f7ffffdec58) at Xsyscall+296
end of kernel
end trace frame: 0x7f7ffffdebe0, count: -10
ddb{0}> show registers
rdi 0
rsi 1
rbp 18446603336770319808
rbx 18446603336770319984
rdx 18446744071594908300 apollo_pio_rec+35292
rcx 513
rax 1
r8 18446744071585311987 kprintf+387
r9 1
r10 8073321489258217710
r11 7775153245688640304
r12 206158430216
r13 18446603336770319824
r14 256
r15 1
rip 18446744071590259448 db_enter+24
cs 8
rflags 582
rsp 18446603336770319792
ss 16
db_enter+24: addq $8,%rsp
ddb{0}> show proc
PROC (syz-executor0986) pid=103427 stat=onproc
flags process=2<EXEC> proc=0
pri=21, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020b94970,0xffffffff82353980
process=0xffff800020b7a018 user=0xffff800020baa000,
vmspace=0xfffffd806e95a5a8
estcpu=0, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*70530 103427 74615 0 7 0x2 syz-executor0986
74615 284793 91374 0 3 0x10008a pause ksh
91374 308416 64493 0 3 0x92 select sshd
95183 37558 1 0 3 0x100083 ttyin getty
64493 320702 1 0 3 0x80 select sshd
14554 101440 72992 73 3 0x100090 kqread syslogd
72992 65000 1 0 3 0x100082 netio syslogd
40962 182229 1 77 3 0x100090 poll dhclient
33046 507663 1 0 3 0x80 poll dhclient
15953 205988 0 0 3 0x14200 pgzero zerothread
7975 2125 0 0 3 0x14200 aiodoned aiodoned
21326 506135 0 0 3 0x14200 syncer update
38522 30894 0 0 3 0x14200 cleaner cleaner
63059 353185 0 0 3 0x14200 reaper reaper
80464 167060 0 0 3 0x14200 pgdaemon pagedaemon
921 444563 0 0 3 0x14200 bored crynlk
42974 379657 0 0 3 0x14200 bored crypto
80774 31187 0 0 3 0x40014200 acpi0 acpi0
84264 487940 0 0 7 0x40014200 idle1
52599 283775 0 0 3 0x14200 bored softnet
50024 455837 0 0 3 0x14200 bored systqmp
8743 432458 0 0 3 0x14200 bored systq
15091 285970 0 0 3 0x40014200 bored softclock
48248 102016 0 0 3 0x40014200 idle0
1 180601 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 70530 (syz-executor0986) thread 0xffff800020b95780 (103427)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82309fb0) locked @
/syzkaller/managers/multicore/kernel/sys/kern/sched_bsd.c:436
#0 witness_lock+1418
#1 ___mp_acquire_count+103
#2 mi_switch+944
#3 sleep_finish+272
#4 sleep_finish_all+52
#5 tsleep+444
#6 spkrioctl+609
#7 VOP_IOCTL+154
#8 vn_ioctl+201
#9 sys_ioctl+1606
#10 syscall+1452
#11 Xsyscall+296
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9443 6315K 6316K 78643K 10530 0 0
pcb 23 9K 9K 78643K 55 0 0
rtable 61 2K 2K 78643K 115 0 0
ifaddr 21 7K 7K 78643K 21 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 2K 78643K 13 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1166 73K 73K 78643K 1172 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 1K 78643K 2 0 0
VM map 2 1K 1K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1792 194K 288K 78643K 12592 0 0
file desc 1 0K 0K 78643K 1 0 0
proc 40 38K 46K 78643K 207 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 11 0K 0K 78643K 11 0 0
ether_multi 1 0K 0K 78643K 1 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 18 79K 79K 78643K 18 0 0
exec 0 0K 1K 78643K 150 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 47 2K 3K 78643K 658 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
NDP 3 0K 0K 78643K 3 0 0
temp 30 2347K 2411K 78643K 1695 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 2 0 0 1 0 1 1 0
8 0
inpcbpl 280 22 0 16 1 0 1 1 0
8 0
plimitpl 152 13 0 8 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
syncache 264 5 0 5 2 1 1 1 0
8 1
tcpcb 544 8 0 5 1 0 1 1 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 96 0 0 6 0 6 6 0
8 0
art_table 32 97 0 0 1 0 1 1 0
8 0
art_node 16 22 0 2 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1383 0 18 45 0 45 45 0
8 0
ffsino 272 1383 0 18 92 0 92 92 0
8 0
nchpl 144 1555 0 30 57 0 57 57 0
8 0
uvmvnodes 72 1392 0 0 26 0 26 26 0
8 0
vnodes 200 1392 0 0 74 0 74 74 0
8 0
namei 1024 3262 0 3262 3 2 1 1 0
8 1
percpumem 16 30 0 0 1 0 1 1 0
8 0
scxspl 192 2359 0 2359 7 6 1 6 0
8 1
sigapl 432 174 0 164 2 0 2 2 0
8 0
knotepl 112 5 0 0 1 0 1 1 0
8 0
kqueuepl 104 1 0 0 1 0 1 1 0
8 0
pipepl 112 114 0 107 3 2 1 1 0
8 0
fdescpl 488 175 0 164 2 0 2 2 0
8 0
filepl 152 808 0 765 2 0 2 2 0
8 0
lockfpl 104 6 0 6 1 1 0 1 0
8 0
lockfspl 32 3 0 3 1 1 0 1 0
8 0
sessionpl 112 17 0 9 1 0 1 1 0
8 0
pgrppl 48 17 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 164 0 164 3 2 1 1 0
8 1
processpl 840 189 0 164 4 0 4 4 0
8 0
procpl 600 189 0 164 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 2 0 0 1 0 1 1 0
8 0
mcl2k 2048 64 0 0 8 0 8 8 0
8 0
mtagpl 80 1 0 0 1 0 1 1 0
8 0
mbufpl 256 98 0 0 5 0 5 5 0
8 0
bufpl 256 1998 0 254 109 0 109 109 0
8 0
anonpl 16 16943 0 15856 7 1 6 6 0
125 1
amapchunkpl 152 504 0 469 2 0 2 2 0
158 0
amappl16 192 68 0 63 1 0 1 1 0
8 0
amappl15 184 1 0 0 1 0 1 1 0
8 0
amappl14 176 1 0 1 1 1 0 1 0
8 0
amappl13 168 16 0 13 1 0 1 1 0
8 0
amappl12 160 7 0 7 2 1 1 1 0
8 1
amappl11 152 172 0 163 1 0 1 1 0
8 0
amappl10 144 43 0 43 3 2 1 1 0
8 1
amappl9 136 205 0 204 1 0 1 1 0
8 0
amappl8 128 109 0 103 1 0 1 1 0
8 0
amappl7 120 29 0 25 1 0 1 1 0
8 0
amappl6 112 43 0 38 1 0 1 1 0
8 0
amappl5 104 138 0 126 1 0 1 1 0
8 0
amappl4 96 253 0 234 1 0 1 1 0
8 0
amappl3 88 112 0 107 1 0 1 1 0
8 0
amappl2 80 559 0 525 1 0 1 1 0
8 0
amappl1 72 11702 0 11313 15 5 10 15 0
8 0
amappl 72 372 0 353 1 0 1 1 0
75 0
dma4096 4096 1 0 1 1 1 0 1 0
8 0
dma256 256 6 0 6 1 1 0 1 0
8 0
dma64 64 259 0 259 1 1 0 1 0
8 0
dma32 32 7 0 7 1 1 0 1 0
8 0
dma16 16 17 0 17 1 1 0 1 0
8 0
aobjpl 64 1 0 0 1 0 1 1 0
8 0
uaddrrnd 24 175 0 164 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 175 0 164 1 0 1 1 0
8 0
vmmpekpl 168 5136 0 5116 1 0 1 1 0
8 0
vmmpepl 168 23507 0 22819 54 20 34 43 0
357 3
vmsppl 360 174 0 164 2 0 2 2 0
8 0
pdppl 4096 357 0 328 5 0 5 5 0
8 0
pvpl 32 69588 0 66880 40 14 26 26 0
265 3
pmappl 224 174 0 164 1 0 1 1 0
8 0
extentpl 40 39 0 25 1 0 1 1 0
8 0
phpool 112 236 0 4 7 0 7 7 0
8 0
ddb{0}>
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