assert "cpipe->pipe_buffer.cnt == 0" failed in sys_pipe.c
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syzbot
Jul 9, 2019, 10:27:07 AM7/9/19
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: c05fa0b5 The system calls getgroups(2) and setgroups(2) pa..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=13d5f3c3a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=60e2b7157576c8d7
dashboard link: https://syzkaller.appspot.com/bug?extid=b559fa9d3292c3cb0343
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+b559fa...@syzkaller.appspotmail.com
panic: kernel diagnostic assertion "cpipe->pipe_buffer.cnt == 0" failed:
file "/syzkaller/managers/main/kernel/sys/kern/sys_pipe.c", line 223
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*321386 46521 0 0 0x4000000 0 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipespace(fffffd8036450628,10000) at pipespace+0x16f sys/kern/sys_pipe.c:219
pipe_write(fffffd8035f36c40,ffff800017a087a8,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff38c8,4,ffff800017a087a8,0,ffff800017a088b0) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff38c8,ffff800017a08848,ffff800017a088b0) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff800017a08910) at syscall+0x508
Xsyscall(6,0,c,0,3,449435551b0) at Xsyscall+0x128
end of kernel
end trace frame: 0x44c25765b90, count: 6
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
kernel diagnostic assertion "cpipe->pipe_buffer.cnt == 0" failed:
file "/syzkaller/managers/main/kernel/sys/kern/sys_pipe.c", line 223
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipespace(fffffd8036450628,10000) at pipespace+0x16f sys/kern/sys_pipe.c:219
pipe_write(fffffd8035f36c40,ffff800017a087a8,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff38c8,4,ffff800017a087a8,0,ffff800017a088b0) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff38c8,ffff800017a08848,ffff800017a088b0) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff800017a08910) at syscall+0x508
Xsyscall(6,0,c,0,3,449435551b0) at Xsyscall+0x128
end of kernel
end trace frame: 0x44c25765b90, count: -9
ddb> show registers
rdi 0xffffffff81c87f67 db_enter+0x17
rsi 0x3d1a __ALIGN_SIZE+0x2d1a
rbp 0xffff800017a08520
rbx 0xffff800017a085d0
rdx 0x3d1b __ALIGN_SIZE+0x2d1b
rcx 0xffff800016ded000
rax 0xffff800016ded000
r8 0xffff800017a084e0
r9 0x1
r10 0xffff800000997f80
r11 0xfd18cd0874d08145
r12 0x3000000008
r13 0xffff800017a08530
r14 0x100
r15 0x1
rip 0xffffffff81c87f68 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800017a08510
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.1) pid=321386 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=16, usrpri=81, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff3b40,0xffff8000ffff3170
process=0xffff8000ffff6d90 user=0xffff800017a03000,
vmspace=0xfffffd803f013110
estcpu=31, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
9056 109734 16454 0 2 0 syz-executor.0
9056 308703 16454 0 3 0x4000080 kqread syz-executor.0
46521 265240 48238 0 2 0 syz-executor.1
46521 373024 48238 0 2 0x4000000 syz-executor.1
46521 37230 48238 0 2 0x4000000 syz-executor.1
*46521 321386 48238 0 7 0x4000000 syz-executor.1
47579 185211 0 0 3 0x14200 bored sosplice
48238 461056 60544 0 3 0x82 nanosleep syz-executor.1
16454 351175 60544 0 3 0x82 nanosleep syz-executor.0
60544 105611 11508 0 3 0x82 kqread syz-fuzzer
60544 39875 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 383306 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 398179 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 121080 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 487764 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 516199 11508 0 3 0x4000082 thrsleep syz-fuzzer
11508 149330 5108 0 3 0x10008a pause ksh
5108 193597 10050 0 3 0x92 select sshd
39007 338760 1 0 3 0x100083 ttyin getty
10050 62743 1 0 3 0x80 select sshd
37976 307909 90044 73 3 0x100090 kqread syslogd
90044 216665 1 0 3 0x100082 netio syslogd
68225 487720 1 77 3 0x100090 poll dhclient
60682 330584 1 0 3 0x80 poll dhclient
70048 450380 0 0 2 0x14200 zerothread
93370 217747 0 0 3 0x14200 aiodoned aiodoned
58933 267609 0 0 3 0x14200 syncer update
68561 501575 0 0 3 0x14200 cleaner cleaner
78771 237447 0 0 3 0x14200 reaper reaper
86685 331720 0 0 3 0x14200 pgdaemon pagedaemon
40101 143548 0 0 3 0x14200 bored crynlk
5266 447670 0 0 3 0x14200 bored crypto
94135 326089 0 0 3 0x40014200 acpi0 acpi0
36074 497697 0 0 3 0x14200 bored softnet
38080 351590 0 0 3 0x14200 bored systqmp
29807 300129 0 0 3 0x14200 bored systq
28372 382823 0 0 3 0x40014200 bored softclock
49920 129996 0 0 3 0x40014200 idle0
16796 41435 0 0 3 0x14200 bored smr
1 470138 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9495 6338K 6974K 78643K 13452 0 0
pcb 23 9K 11K 78643K 478 0 0
rtable 111 4K 4K 78643K 428 0 0
ifaddr 56 13K 14K 78643K 158 0 0
counters 19 16K 16K 78643K 19 0 0
ioctlops 0 0K 2K 78643K 75 0 0
iov 0 0K 32K 78643K 126 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1215 76K 77K 78643K 2443 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 5K 78643K 6 0 0
VM map 2 0K 0K 78643K 2 0 0
sem 12 0K 0K 78643K 223 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1793 195K 288K 78643K 12645 0 0
file desc 6 17K 25K 78643K 1599 0 0
sigio 0 0K 0K 78643K 35 0 0
proc 41 30K 54K 78643K 414 0 0
subproc 32 2K 2K 78643K 34 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 134 0 0
in_multi 33 2K 2K 78643K 125 0 0
ether_multi 1 0K 0K 78643K 27 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 60 265K 265K 78643K 60 0 0
exec 0 0K 1K 78643K 258 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 93 21K 38K 78643K 4431 0 0
UVM aobj 20 2K 2K 78643K 20 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 0K 78643K 88 0 0
NDP 11 0K 0K 78643K 47 0 0
temp 123 2713K 2781K 78643K 7353 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 6 0 0 1 0 1 1 0
8 0
inpcbpl 280 452 0 445 1 0 1 1 0
8 0
rtentry 112 45 0 1 2 0 2 2 0
8 0
syncache 264 4 0 4 1 1 0 1 0
8 0
tcpqe 32 32 0 32 4 4 0 1 0
8 0
tcpcb 544 205 0 201 1 0 1 1 0
8 0
nd6 48 6 0 0 1 0 1 1 0
8 0
ppxss 1128 27 0 26 1 0 1 1 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 188 0 0 12 0 12 12 0
8 0
art_table 32 189 0 0 2 0 2 2 0
8 0
art_node 16 44 0 4 1 0 1 1 0
8 0
semapl 112 221 0 211 1 0 1 1 0
8 0
shmpl 112 18 0 0 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 4155 0 2728 48 1 47 47 0
8 0
ffsino 240 4155 0 2728 85 0 85 85 0
8 0
nchpl 144 6227 0 4584 61 0 61 61 0
8 0
uvmvnodes 72 4788 0 0 88 0 88 88 0
8 0
vnodes 200 4788 0 0 252 0 252 252 0
8 0
namei 1024 16543 0 16543 4 3 1 1 0
8 1
scxspl 192 16876 0 16876 11 10 1 6 0
8 1
plimitpl 152 78 0 71 1 0 1 1 0
8 0
sigapl 432 1770 0 1756 2 0 2 2 0
8 0
futexpl 56 13241 0 13241 6 5 1 1 0
8 1
knotepl 112 241 0 222 1 0 1 1 0
8 0
kqueuepl 104 224 0 220 1 0 1 1 0
8 0
pipepl 112 514 0 493 3 2 1 2 0
8 0
fdescpl 424 1771 0 1756 2 0 2 2 0
8 0
filepl 120 7218 0 7116 5 1 4 5 0
8 0
lockfpl 104 221 0 220 5 4 1 1 0
8 0
lockfspl 48 68 0 67 5 4 1 1 0
8 0
sessionpl 112 17 0 7 1 0 1 1 0
8 0
pgrppl 48 41 0 31 1 0 1 1 0
8 0
ucredpl 96 2014 0 2007 1 0 1 1 0
8 0
zombiepl 144 1756 0 1756 6 5 1 1 0
8 1
processpl 864 1786 0 1756 4 0 4 4 0
8 0
procpl 632 3665 0 3625 4 0 4 4 0
8 0
sosppl 128 48 0 48 2 2 0 1 0
8 0
sockpl 384 872 0 855 7 4 3 4 0
8 1
mcl64k 65536 98 0 98 5 4 1 1 0
8 1
mcl9k 9216 30 0 30 4 3 1 1 0
8 1
mcl8k 8192 21 0 21 2 2 0 1 0
8 0
mcl4k 4096 113 0 113 4 3 1 1 0
8 1
mcl2k2 2112 21 0 21 2 2 0 1 0
8 0
mcl2k 2048 16135 0 16102 16 10 6 8 0
8 1
mtagpl 80 4 0 4 2 2 0 1 0
8 0
mbufpl 256 45329 0 45287 12 7 5 8 0
8 0
bufpl 256 8072 0 3506 286 0 286 286 0
8 0
anonpl 16 222590 0 218692 88 67 21 46 0
62 0
amapchunkpl 152 7285 0 7201 16 12 4 11 0
158 0
amappl16 192 11690 0 11518 71 61 10 31 0
8 0
amappl15 184 750 0 748 1 0 1 1 0
8 0
amappl14 176 798 0 790 1 0 1 1 0
8 0
amappl13 168 7 0 7 1 1 0 1 0
8 0
amappl12 160 9 0 5 1 0 1 1 0
8 0
amappl11 152 874 0 860 1 0 1 1 0
8 0
amappl10 144 60 0 58 2 1 1 1 0
8 0
amappl9 136 241 0 238 1 0 1 1 0
8 0
amappl8 128 126 0 111 1 0 1 1 0
8 0
amappl7 120 29 0 25 1 0 1 1 0
8 0
amappl6 112 868 0 860 1 0 1 1 0
8 0
amappl5 104 776 0 766 1 0 1 1 0
8 0
amappl4 96 1253 0 1227 2 1 1 2 0
8 0
amappl3 88 1665 0 1651 1 0 1 1 0
8 0
amappl2 80 13364 0 13289 4 2 2 3 0
8 0
amappl1 72 37855 0 37428 26 17 9 19 0
8 0
amappl 80 3926 0 3891 1 0 1 1 0
84 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 19 0 0 1 0 1 1 0
8 0
uaddrrnd 24 1771 0 1756 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 1771 0 1756 1 0 1 1 0
8 0
vmmpekpl 168 14510 0 14487 2 0 2 2 0
8 0
vmmpepl 168 210581 0 209254 143 84 59 77 0
357 1
vmsppl 272 1770 0 1756 2 1 1 2 0
8 0
pdppl 4096 3548 0 3512 6 1 5 6 0
8 0
pvpl 32 561263 0 554310 194 115 79 120 0 265
20
pmappl 200 1770 0 1756 1 0 1 1 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 441 0 33 12 0 12 12 0
8 0
---
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#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: c05fa0b5 The system calls getgroups(2) and setgroups(2) pa..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=13d5f3c3a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=60e2b7157576c8d7
dashboard link: https://syzkaller.appspot.com/bug?extid=b559fa9d3292c3cb0343
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+b559fa...@syzkaller.appspotmail.com
panic: kernel diagnostic assertion "cpipe->pipe_buffer.cnt == 0" failed:
file "/syzkaller/managers/main/kernel/sys/kern/sys_pipe.c", line 223
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*321386 46521 0 0 0x4000000 0 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipespace(fffffd8036450628,10000) at pipespace+0x16f sys/kern/sys_pipe.c:219
pipe_write(fffffd8035f36c40,ffff800017a087a8,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff38c8,4,ffff800017a087a8,0,ffff800017a088b0) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff38c8,ffff800017a08848,ffff800017a088b0) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff800017a08910) at syscall+0x508
Xsyscall(6,0,c,0,3,449435551b0) at Xsyscall+0x128
end of kernel
end trace frame: 0x44c25765b90, count: 6
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
kernel diagnostic assertion "cpipe->pipe_buffer.cnt == 0" failed:
file "/syzkaller/managers/main/kernel/sys/kern/sys_pipe.c", line 223
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipespace(fffffd8036450628,10000) at pipespace+0x16f sys/kern/sys_pipe.c:219
pipe_write(fffffd8035f36c40,ffff800017a087a8,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff38c8,4,ffff800017a087a8,0,ffff800017a088b0) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff38c8,ffff800017a08848,ffff800017a088b0) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff800017a08910) at syscall+0x508
Xsyscall(6,0,c,0,3,449435551b0) at Xsyscall+0x128
end of kernel
end trace frame: 0x44c25765b90, count: -9
ddb> show registers
rdi 0xffffffff81c87f67 db_enter+0x17
rsi 0x3d1a __ALIGN_SIZE+0x2d1a
rbp 0xffff800017a08520
rbx 0xffff800017a085d0
rdx 0x3d1b __ALIGN_SIZE+0x2d1b
rcx 0xffff800016ded000
rax 0xffff800016ded000
r8 0xffff800017a084e0
r9 0x1
r10 0xffff800000997f80
r11 0xfd18cd0874d08145
r12 0x3000000008
r13 0xffff800017a08530
r14 0x100
r15 0x1
rip 0xffffffff81c87f68 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800017a08510
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.1) pid=321386 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=16, usrpri=81, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff3b40,0xffff8000ffff3170
process=0xffff8000ffff6d90 user=0xffff800017a03000,
vmspace=0xfffffd803f013110
estcpu=31, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
9056 109734 16454 0 2 0 syz-executor.0
9056 308703 16454 0 3 0x4000080 kqread syz-executor.0
46521 265240 48238 0 2 0 syz-executor.1
46521 373024 48238 0 2 0x4000000 syz-executor.1
46521 37230 48238 0 2 0x4000000 syz-executor.1
*46521 321386 48238 0 7 0x4000000 syz-executor.1
47579 185211 0 0 3 0x14200 bored sosplice
48238 461056 60544 0 3 0x82 nanosleep syz-executor.1
16454 351175 60544 0 3 0x82 nanosleep syz-executor.0
60544 105611 11508 0 3 0x82 kqread syz-fuzzer
60544 39875 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 383306 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 398179 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 121080 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 487764 11508 0 3 0x4000082 thrsleep syz-fuzzer
60544 516199 11508 0 3 0x4000082 thrsleep syz-fuzzer
11508 149330 5108 0 3 0x10008a pause ksh
5108 193597 10050 0 3 0x92 select sshd
39007 338760 1 0 3 0x100083 ttyin getty
10050 62743 1 0 3 0x80 select sshd
37976 307909 90044 73 3 0x100090 kqread syslogd
90044 216665 1 0 3 0x100082 netio syslogd
68225 487720 1 77 3 0x100090 poll dhclient
60682 330584 1 0 3 0x80 poll dhclient
70048 450380 0 0 2 0x14200 zerothread
93370 217747 0 0 3 0x14200 aiodoned aiodoned
58933 267609 0 0 3 0x14200 syncer update
68561 501575 0 0 3 0x14200 cleaner cleaner
78771 237447 0 0 3 0x14200 reaper reaper
86685 331720 0 0 3 0x14200 pgdaemon pagedaemon
40101 143548 0 0 3 0x14200 bored crynlk
5266 447670 0 0 3 0x14200 bored crypto
94135 326089 0 0 3 0x40014200 acpi0 acpi0
36074 497697 0 0 3 0x14200 bored softnet
38080 351590 0 0 3 0x14200 bored systqmp
29807 300129 0 0 3 0x14200 bored systq
28372 382823 0 0 3 0x40014200 bored softclock
49920 129996 0 0 3 0x40014200 idle0
16796 41435 0 0 3 0x14200 bored smr
1 470138 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9495 6338K 6974K 78643K 13452 0 0
pcb 23 9K 11K 78643K 478 0 0
rtable 111 4K 4K 78643K 428 0 0
ifaddr 56 13K 14K 78643K 158 0 0
counters 19 16K 16K 78643K 19 0 0
ioctlops 0 0K 2K 78643K 75 0 0
iov 0 0K 32K 78643K 126 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1215 76K 77K 78643K 2443 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 5K 78643K 6 0 0
VM map 2 0K 0K 78643K 2 0 0
sem 12 0K 0K 78643K 223 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1793 195K 288K 78643K 12645 0 0
file desc 6 17K 25K 78643K 1599 0 0
sigio 0 0K 0K 78643K 35 0 0
proc 41 30K 54K 78643K 414 0 0
subproc 32 2K 2K 78643K 34 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 134 0 0
in_multi 33 2K 2K 78643K 125 0 0
ether_multi 1 0K 0K 78643K 27 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 60 265K 265K 78643K 60 0 0
exec 0 0K 1K 78643K 258 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 93 21K 38K 78643K 4431 0 0
UVM aobj 20 2K 2K 78643K 20 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 0K 78643K 88 0 0
NDP 11 0K 0K 78643K 47 0 0
temp 123 2713K 2781K 78643K 7353 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 6 0 0 1 0 1 1 0
8 0
inpcbpl 280 452 0 445 1 0 1 1 0
8 0
rtentry 112 45 0 1 2 0 2 2 0
8 0
syncache 264 4 0 4 1 1 0 1 0
8 0
tcpqe 32 32 0 32 4 4 0 1 0
8 0
tcpcb 544 205 0 201 1 0 1 1 0
8 0
nd6 48 6 0 0 1 0 1 1 0
8 0
ppxss 1128 27 0 26 1 0 1 1 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 188 0 0 12 0 12 12 0
8 0
art_table 32 189 0 0 2 0 2 2 0
8 0
art_node 16 44 0 4 1 0 1 1 0
8 0
semapl 112 221 0 211 1 0 1 1 0
8 0
shmpl 112 18 0 0 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 4155 0 2728 48 1 47 47 0
8 0
ffsino 240 4155 0 2728 85 0 85 85 0
8 0
nchpl 144 6227 0 4584 61 0 61 61 0
8 0
uvmvnodes 72 4788 0 0 88 0 88 88 0
8 0
vnodes 200 4788 0 0 252 0 252 252 0
8 0
namei 1024 16543 0 16543 4 3 1 1 0
8 1
scxspl 192 16876 0 16876 11 10 1 6 0
8 1
plimitpl 152 78 0 71 1 0 1 1 0
8 0
sigapl 432 1770 0 1756 2 0 2 2 0
8 0
futexpl 56 13241 0 13241 6 5 1 1 0
8 1
knotepl 112 241 0 222 1 0 1 1 0
8 0
kqueuepl 104 224 0 220 1 0 1 1 0
8 0
pipepl 112 514 0 493 3 2 1 2 0
8 0
fdescpl 424 1771 0 1756 2 0 2 2 0
8 0
filepl 120 7218 0 7116 5 1 4 5 0
8 0
lockfpl 104 221 0 220 5 4 1 1 0
8 0
lockfspl 48 68 0 67 5 4 1 1 0
8 0
sessionpl 112 17 0 7 1 0 1 1 0
8 0
pgrppl 48 41 0 31 1 0 1 1 0
8 0
ucredpl 96 2014 0 2007 1 0 1 1 0
8 0
zombiepl 144 1756 0 1756 6 5 1 1 0
8 1
processpl 864 1786 0 1756 4 0 4 4 0
8 0
procpl 632 3665 0 3625 4 0 4 4 0
8 0
sosppl 128 48 0 48 2 2 0 1 0
8 0
sockpl 384 872 0 855 7 4 3 4 0
8 1
mcl64k 65536 98 0 98 5 4 1 1 0
8 1
mcl9k 9216 30 0 30 4 3 1 1 0
8 1
mcl8k 8192 21 0 21 2 2 0 1 0
8 0
mcl4k 4096 113 0 113 4 3 1 1 0
8 1
mcl2k2 2112 21 0 21 2 2 0 1 0
8 0
mcl2k 2048 16135 0 16102 16 10 6 8 0
8 1
mtagpl 80 4 0 4 2 2 0 1 0
8 0
mbufpl 256 45329 0 45287 12 7 5 8 0
8 0
bufpl 256 8072 0 3506 286 0 286 286 0
8 0
anonpl 16 222590 0 218692 88 67 21 46 0
62 0
amapchunkpl 152 7285 0 7201 16 12 4 11 0
158 0
amappl16 192 11690 0 11518 71 61 10 31 0
8 0
amappl15 184 750 0 748 1 0 1 1 0
8 0
amappl14 176 798 0 790 1 0 1 1 0
8 0
amappl13 168 7 0 7 1 1 0 1 0
8 0
amappl12 160 9 0 5 1 0 1 1 0
8 0
amappl11 152 874 0 860 1 0 1 1 0
8 0
amappl10 144 60 0 58 2 1 1 1 0
8 0
amappl9 136 241 0 238 1 0 1 1 0
8 0
amappl8 128 126 0 111 1 0 1 1 0
8 0
amappl7 120 29 0 25 1 0 1 1 0
8 0
amappl6 112 868 0 860 1 0 1 1 0
8 0
amappl5 104 776 0 766 1 0 1 1 0
8 0
amappl4 96 1253 0 1227 2 1 1 2 0
8 0
amappl3 88 1665 0 1651 1 0 1 1 0
8 0
amappl2 80 13364 0 13289 4 2 2 3 0
8 0
amappl1 72 37855 0 37428 26 17 9 19 0
8 0
amappl 80 3926 0 3891 1 0 1 1 0
84 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 19 0 0 1 0 1 1 0
8 0
uaddrrnd 24 1771 0 1756 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 1771 0 1756 1 0 1 1 0
8 0
vmmpekpl 168 14510 0 14487 2 0 2 2 0
8 0
vmmpepl 168 210581 0 209254 143 84 59 77 0
357 1
vmsppl 272 1770 0 1756 2 1 1 2 0
8 0
pdppl 4096 3548 0 3512 6 1 5 6 0
8 0
pvpl 32 561263 0 554310 194 115 79 120 0 265
20
pmappl 200 1770 0 1756 1 0 1 1 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 441 0 33 12 0 12 12 0
8 0
---
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#status for how to communicate with syzbot.
syzbot
Jul 9, 2019, 11:00:07 AM7/9/19
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: c05fa0b5 The system calls getgroups(2) and setgroups(2) pa..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=146ff2f3a00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1694cfc7a00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+b559fa...@syzkaller.appspotmail.com
login: panic: kernel diagnostic assertion "cpipe->pipe_buffer.cnt == 0"
pipe_write(fffffd803616a878,ffff800014990778,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff5648,7,ffff800014990778,0,ffff800014990880) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff5648,ffff800014990818,ffff800014990880) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff8000149908e0) at syscall+0x508
Xsyscall(6,0,5e39bfb0138,0,5e39bfb0118,5e39bfb0110) at Xsyscall+0x128
end of kernel
end trace frame: 0x5e61fb4ec30, count: 6
pipe_write(fffffd803616a878,ffff800014990778,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff5648,7,ffff800014990778,0,ffff800014990880) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff5648,ffff800014990818,ffff800014990880) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff8000149908e0) at syscall+0x508
Xsyscall(6,0,5e39bfb0138,0,5e39bfb0118,5e39bfb0110) at Xsyscall+0x128
end of kernel
end trace frame: 0x5e61fb4ec30, count: -9
rbp 0xffff8000149904f0
rbx 0xffff8000149905a0
rdx 0x2
rcx 0x1
rax 0x1
r8 0xffff8000149904b0
r9 0x1
r10 0x9ddac5ae6114b634
r11 0xd55d3bf75e7a45ac
r12 0x3000000008
r13 0xffff800014990500
flags process=2<EXEC> proc=4000000<THREAD>
pri=16, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff4500,0xffff8000ffff58d0
process=0xffff800014942018 user=0xffff80001498b000,
vmspace=0xfffffd803f013110
estcpu=1, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
45648 115731 71971 0 2 0x4000002 syz-executor4393
45648 38703 71971 0 3 0x4000082 pipewr syz-executor4393
*45648 260067 71971 0 7 0x4000002 syz-executor4393
45648 103528 71971 0 3 0x4000082 fsleep syz-executor4393
45648 75861 71971 0 3 0x4000082 fsleep syz-executor4393
45648 392146 71971 0 3 0x4000082 fsleep syz-executor4393
45648 455744 71971 0 2 0x4000002 syz-executor4393
71971 234144 99194 0 3 0x10008a pause ksh
99194 515210 34369 0 3 0x92 select sshd
12737 522352 1 0 3 0x100083 ttyin getty
34369 510706 1 0 3 0x80 select sshd
16110 153239 77536 73 3 0x100090 kqread syslogd
77536 136398 1 0 3 0x100082 netio syslogd
44596 435276 1 77 3 0x100090 poll dhclient
10734 482124 1 0 3 0x80 poll dhclient
82322 236152 0 0 3 0x14200 pgzero zerothread
64891 67611 0 0 3 0x14200 aiodoned aiodoned
44407 386341 0 0 3 0x14200 syncer update
89078 343488 0 0 3 0x14200 cleaner cleaner
49214 340878 0 0 3 0x14200 reaper reaper
77519 439946 0 0 3 0x14200 pgdaemon pagedaemon
42863 345769 0 0 3 0x14200 bored crynlk
91543 86990 0 0 3 0x14200 bored crypto
25176 50148 0 0 3 0x40014200 acpi0 acpi0
198 190801 0 0 3 0x14200 bored softnet
57872 57968 0 0 3 0x14200 bored systqmp
26068 116655 0 0 3 0x14200 bored systq
94205 30204 0 0 3 0x40014200 bored softclock
79993 270526 0 0 3 0x40014200 idle0
81989 92445 0 0 3 0x14200 bored smr
1 176016 0 0 3 0x82 wait init
pcb 23 9K 9K 78643K 55 0 0
rtable 61 1K 2K 78643K 116 0 0
ifaddr 21 7K 7K 78643K 21 0 0
iov 0 0K 12K 78643K 2 0 0
proc 40 30K 38K 78643K 257 0 0
ether_multi 1 0K 0K 78643K 1 0 0
exec 0 0K 1K 78643K 152 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
temp 30 2707K 2771K 78643K 1715 0 0
8 0
inpcbpl 280 22 0 16 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
syncache 264 5 0 5 1 0 1 1 0
8 1
tcpcb 544 8 0 5 1 0 1 1 0
8 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
ffsino 240 1392 0 16 81 0 81 81 0
8 0
nchpl 144 1567 0 31 57 0 57 57 0
8 0
uvmvnodes 72 1401 0 0 26 0 26 26 0
8 0
vnodes 200 1401 0 0 74 0 74 74 0
8 0
namei 1024 3367 0 3367 2 1 1 1 0
8 1
scxspl 192 2634 0 2634 8 2 6 6 0
8 6
plimitpl 152 14 0 8 1 0 1 1 0
8 0
sigapl 432 176 0 166 2 0 2 2 0
8 0
futexpl 56 16 0 13 1 0 1 1 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 112 122 0 111 2 1 1 1 0
8 0
fdescpl 424 177 0 166 2 0 2 2 0
8 0
filepl 120 845 0 796 2 0 2 2 0
8 0
lockfpl 104 8 0 6 2 1 1 1 0
8 0
lockfspl 48 4 0 3 2 1 1 1 0
8 0
sessionpl 112 18 0 9 1 0 1 1 0
8 0
pgrppl 48 18 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 166 0 166 2 1 1 1 0
8 1
processpl 864 191 0 166 4 0 4 4 0
8 0
procpl 632 198 0 166 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 10 0 10 1 0 1 1 0
8 1
mcl2k 2048 6106 0 6069 8 1 7 8 0
8 2
mtagpl 80 2 0 2 1 1 0 1 0
8 0
mbufpl 256 10399 0 10354 8 3 5 6 0
8 1
bufpl 256 2208 0 262 122 0 122 122 0
8 0
anonpl 16 18242 0 16762 8 2 6 7 0
62 0
amapchunkpl 152 490 0 441 2 0 2 2 0
158 0
amappl16 192 93 0 70 2 0 2 2 0
8 0
amappl14 176 36 0 32 1 0 1 1 0
8 0
amappl12 160 8 0 8 1 0 1 1 0
8 1
amappl11 152 41 0 30 1 0 1 1 0
8 0
amappl10 144 46 0 45 1 0 1 1 0
8 0
amappl9 136 376 0 374 1 0 1 1 0
8 0
amappl8 128 88 0 83 1 0 1 1 0
8 0
amappl7 120 13 0 12 1 0 1 1 0
8 0
amappl6 112 40 0 36 1 0 1 1 0
8 0
amappl5 104 167 0 158 1 0 1 1 0
8 0
amappl4 96 399 0 375 1 0 1 1 0
8 0
amappl3 88 148 0 137 1 0 1 1 0
8 0
amappl2 80 724 0 668 3 1 2 2 0
8 0
amappl1 72 12179 0 11741 16 6 10 16 0
8 0
amappl 80 371 0 345 1 0 1 1 0
8 0
uaddrrnd 24 177 0 166 1 0 1 1 0
8 0
vmmpekpl 168 5340 0 5326 1 0 1 1 0
8 0
vmmpepl 168 25952 0 25088 50 12 38 48 0
357 0
vmsppl 272 176 0 166 1 0 1 1 0
8 0
pdppl 4096 360 0 332 5 0 5 5 0
8 0
pvpl 32 71901 0 68781 30 4 26 26 0
265 0
pmappl 200 176 0 166 1 0 1 1 0
8 0
ddb>
HEAD commit: c05fa0b5 The system calls getgroups(2) and setgroups(2) pa..
git tree: openbsd
kernel config: https://syzkaller.appspot.com/x/.config?x=60e2b7157576c8d7
dashboard link: https://syzkaller.appspot.com/bug?extid=b559fa9d3292c3cb0343
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12410487a00000
dashboard link: https://syzkaller.appspot.com/bug?extid=b559fa9d3292c3cb0343
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1694cfc7a00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+b559fa...@syzkaller.appspotmail.com
failed: file "/syzkaller/managers/main/kernel/sys/kern/sys_pipe.c", line 223
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*260067 45648 0 0x2 0x4000000 0 syz-executor4393
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipespace(fffffd803b498628,10000) at pipespace+0x16f sys/kern/sys_pipe.c:219
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipe_write(fffffd803616a878,ffff800014990778,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff5648,7,ffff800014990778,0,ffff800014990880) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff5648,ffff800014990818,ffff800014990880) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff8000149908e0) at syscall+0x508
Xsyscall(6,0,5e39bfb0138,0,5e39bfb0118,5e39bfb0110) at Xsyscall+0x128
end of kernel
end trace frame: 0x5e61fb4ec30, count: 6
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
kernel diagnostic assertion "cpipe->pipe_buffer.cnt == 0" failed:
file "/syzkaller/managers/main/kernel/sys/kern/sys_pipe.c", line 223
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipespace(fffffd803b498628,10000) at pipespace+0x16f sys/kern/sys_pipe.c:219
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel diagnostic assertion "cpipe->pipe_buffer.cnt == 0" failed:
file "/syzkaller/managers/main/kernel/sys/kern/sys_pipe.c", line 223
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
__assert(ffffffff81f8ad79,ffffffff81f99791,df,ffffffff81f2c9d6) at
__assert+0x2e sys/kern/subr_prf.c:159
pipe_write(fffffd803616a878,ffff800014990778,0) at pipe_write+0x952
sys/kern/sys_pipe.c:472
dofilewritev(ffff8000ffff5648,7,ffff800014990778,0,ffff800014990880) at
dofilewritev+0x1ac sys/kern/sys_generic.c:364
sys_write(ffff8000ffff5648,ffff800014990818,ffff800014990880) at
sys_write+0x83 sys/kern/sys_generic.c:284
syscall(ffff8000149908e0) at syscall+0x508
Xsyscall(6,0,5e39bfb0138,0,5e39bfb0118,5e39bfb0110) at Xsyscall+0x128
end of kernel
end trace frame: 0x5e61fb4ec30, count: -9
ddb> show registers
rdi 0
rsi 0x1
rdi 0
rbp 0xffff8000149904f0
rbx 0xffff8000149905a0
rdx 0x2
rcx 0x1
rax 0x1
r8 0xffff8000149904b0
r9 0x1
r10 0x9ddac5ae6114b634
r11 0xd55d3bf75e7a45ac
r12 0x3000000008
r13 0xffff800014990500
r14 0x100
r15 0x1
rip 0xffffffff81c87f68 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000149904e0
r15 0x1
rip 0xffffffff81c87f68 db_enter+0x18
cs 0x8
rflags 0x246
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor4393) pid=260067 stat=onproc
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
flags process=2<EXEC> proc=4000000<THREAD>
pri=16, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff4500,0xffff8000ffff58d0
process=0xffff800014942018 user=0xffff80001498b000,
vmspace=0xfffffd803f013110
estcpu=1, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
45648 253492 71971 0 2 0x482 syz-executor4393
PID TID PPID UID S FLAGS WAIT COMMAND
45648 115731 71971 0 2 0x4000002 syz-executor4393
45648 38703 71971 0 3 0x4000082 pipewr syz-executor4393
*45648 260067 71971 0 7 0x4000002 syz-executor4393
45648 103528 71971 0 3 0x4000082 fsleep syz-executor4393
45648 75861 71971 0 3 0x4000082 fsleep syz-executor4393
45648 392146 71971 0 3 0x4000082 fsleep syz-executor4393
45648 455744 71971 0 2 0x4000002 syz-executor4393
71971 234144 99194 0 3 0x10008a pause ksh
99194 515210 34369 0 3 0x92 select sshd
12737 522352 1 0 3 0x100083 ttyin getty
34369 510706 1 0 3 0x80 select sshd
16110 153239 77536 73 3 0x100090 kqread syslogd
77536 136398 1 0 3 0x100082 netio syslogd
44596 435276 1 77 3 0x100090 poll dhclient
10734 482124 1 0 3 0x80 poll dhclient
82322 236152 0 0 3 0x14200 pgzero zerothread
64891 67611 0 0 3 0x14200 aiodoned aiodoned
44407 386341 0 0 3 0x14200 syncer update
89078 343488 0 0 3 0x14200 cleaner cleaner
49214 340878 0 0 3 0x14200 reaper reaper
77519 439946 0 0 3 0x14200 pgdaemon pagedaemon
42863 345769 0 0 3 0x14200 bored crynlk
91543 86990 0 0 3 0x14200 bored crypto
25176 50148 0 0 3 0x40014200 acpi0 acpi0
198 190801 0 0 3 0x14200 bored softnet
57872 57968 0 0 3 0x14200 bored systqmp
26068 116655 0 0 3 0x14200 bored systq
94205 30204 0 0 3 0x40014200 bored softclock
79993 270526 0 0 3 0x40014200 idle0
81989 92445 0 0 3 0x14200 bored smr
1 176016 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9428 6307K 6308K 78643K 10521 0 0
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
pcb 23 9K 9K 78643K 55 0 0
rtable 61 1K 2K 78643K 116 0 0
ifaddr 21 7K 7K 78643K 21 0 0
counters 19 16K 16K 78643K 19 0 0
ioctlops 0 0K 2K 78643K 13 0 0
iov 0 0K 12K 78643K 2 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1180 74K 74K 78643K 1185 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
UFS mount 5 36K 36K 78643K 5 0 0
VM map 2 0K 0K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1793 195K 288K 78643K 12645 0 0
file desc 1 0K 0K 78643K 1 0 0
ACPI 1793 195K 288K 78643K 12645 0 0
proc 40 30K 38K 78643K 257 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
NFS daemon 1 16K 16K 78643K 1 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
MSDOSFS mount 1 16K 16K 78643K 1 0 0
exec 0 0K 1K 78643K 152 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 65 11K 11K 78643K 713 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 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
crypto data 1 1K 1K 78643K 1 0 0
temp 30 2707K 2771K 78643K 1715 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb> 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
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
8 0
inpcbpl 280 22 0 16 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
syncache 264 5 0 5 1 0 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
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 1392 0 16 45 0 45 45 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
8 0
ffsino 240 1392 0 16 81 0 81 81 0
8 0
nchpl 144 1567 0 31 57 0 57 57 0
8 0
uvmvnodes 72 1401 0 0 26 0 26 26 0
8 0
vnodes 200 1401 0 0 74 0 74 74 0
8 0
namei 1024 3367 0 3367 2 1 1 1 0
8 1
scxspl 192 2634 0 2634 8 2 6 6 0
8 6
plimitpl 152 14 0 8 1 0 1 1 0
8 0
sigapl 432 176 0 166 2 0 2 2 0
8 0
futexpl 56 16 0 13 1 0 1 1 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 112 122 0 111 2 1 1 1 0
8 0
fdescpl 424 177 0 166 2 0 2 2 0
8 0
filepl 120 845 0 796 2 0 2 2 0
8 0
lockfpl 104 8 0 6 2 1 1 1 0
8 0
lockfspl 48 4 0 3 2 1 1 1 0
8 0
sessionpl 112 18 0 9 1 0 1 1 0
8 0
pgrppl 48 18 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 166 0 166 2 1 1 1 0
8 1
processpl 864 191 0 166 4 0 4 4 0
8 0
procpl 632 198 0 166 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 10 0 10 1 0 1 1 0
8 1
mcl2k 2048 6106 0 6069 8 1 7 8 0
8 2
mtagpl 80 2 0 2 1 1 0 1 0
8 0
mbufpl 256 10399 0 10354 8 3 5 6 0
8 1
bufpl 256 2208 0 262 122 0 122 122 0
8 0
anonpl 16 18242 0 16762 8 2 6 7 0
62 0
amapchunkpl 152 490 0 441 2 0 2 2 0
158 0
amappl16 192 93 0 70 2 0 2 2 0
8 0
amappl14 176 36 0 32 1 0 1 1 0
8 0
amappl12 160 8 0 8 1 0 1 1 0
8 1
amappl11 152 41 0 30 1 0 1 1 0
8 0
amappl10 144 46 0 45 1 0 1 1 0
8 0
amappl9 136 376 0 374 1 0 1 1 0
8 0
amappl8 128 88 0 83 1 0 1 1 0
8 0
amappl7 120 13 0 12 1 0 1 1 0
8 0
amappl6 112 40 0 36 1 0 1 1 0
8 0
amappl5 104 167 0 158 1 0 1 1 0
8 0
amappl4 96 399 0 375 1 0 1 1 0
8 0
amappl3 88 148 0 137 1 0 1 1 0
8 0
amappl2 80 724 0 668 3 1 2 2 0
8 0
amappl1 72 12179 0 11741 16 6 10 16 0
8 0
amappl 80 371 0 345 1 0 1 1 0
84 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
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
8 0
uaddrrnd 24 177 0 166 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 177 0 166 1 0 1 1 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
8 0
vmmpekpl 168 5340 0 5326 1 0 1 1 0
8 0
vmmpepl 168 25952 0 25088 50 12 38 48 0
357 0
vmsppl 272 176 0 166 1 0 1 1 0
8 0
pdppl 4096 360 0 332 5 0 5 5 0
8 0
pvpl 32 71901 0 68781 30 4 26 26 0
265 0
pmappl 200 176 0 166 1 0 1 1 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 241 0 7 7 0 7 7 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
8 0
ddb>
syzbot
Jul 11, 2019, 1:32:35 PM7/11/19
to Anton Lindqvist, an...@basename.se, syzkaller-o...@googlegroups.com
> #syz test: https://github.com/mptre/openbsd-src pipe
This bug is already marked as fixed. No point in testing.
This bug is already marked as fixed. No point in testing.
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