protection_fault: icmp_mtudisc_timeout (2)
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syzbot
Sep 11, 2024, 1:16:24 AMSep 11
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 8e9d9dd5c33e nfsm_srvnamesiz() may set up an NFSERR_NAMETO..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15e87f29980000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=a9b598327bb587021973
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/83b7ffd94945/disk-8e9d9dd5.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/c8d0c65eb208/bsd-8e9d9dd5.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a32b4b7ce3c2/kernel-8e9d9dd5.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a9b598...@syzkaller.appspotmail.com
kernel: protection fault trap, code=0
Stopped at icmp_mtudisc_timeout+0x111: movq 0(%rax),%rcx
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
the kernel did not panic
ddb{1}> trace
icmp_mtudisc_timeout(fffffd806bf16d28,0) at icmp_mtudisc_timeout+0x111 sys/netinet/ip_icmp.c:1073
rt_timer_queue_flush(ffffffff8361f408) at rt_timer_queue_flush+0x281 sys/net/route.c:1573
ip_sysctl(ffff80002a08e60c,1,0,ffff80002a08e638,20001300,4) at ip_sysctl+0x7b4 sys/netinet/ip_input.c:1730
net_sysctl(ffff80002a08e604,3,0,ffff80002a08e638,20001300,4,50d09f10adc8c17) at net_sysctl+0x64a sys/kern/uipc_domain.c:248
sys_sysctl(ffff8000fffee2b8,ffff80002a08e770,ffff80002a08e6c0) at sys_sysctl+0x422
syscall(ffff80002a08e770) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a08e770) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa1d1a069b0, count: -7
ddb{1}> show registers
rdi 0x14
rsi 0x14
rbp 0xffff80002a08e450
rbx 0x3
rdx 0xffff8000011f37c0
rcx 0xffff8000fffee2b8
rax 0xfb881030fc336ec6
r8 0xffffffff82f09070 tcp_mtudisc_increase
r9 0
r10 0x3fdd9501ae9f1ad4
r11 0x1ea8ebd3927e69f4
r12 0xffff800000039058
r13 0x14
r14 0
r15 0xfffffd806bf16d28
rip 0xffffffff826db6e1 icmp_mtudisc_timeout+0x111
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a08e400
ss 0x10
icmp_mtudisc_timeout+0x111: movq 0(%rax),%rcx
ddb{1}> show proc
PROC (syz-executor) tid=186716 pid=54294 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=84, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000323b5200,0xffff8000fffee7d8
process=0xffff8000345a1b40 user=0xffff80002a089000, vmspace=0xfffffd806cecd540
estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
50744 160797 5116 0 3 0x80 nanoslp syz-executor
50744 196773 5116 0 3 0x4000080 fsleep syz-executor
29858 380943 2876 0 2 0 syz-executor
29858 209127 2876 0 3 0x4000080 sbwait syz-executor
54294 275152 97114 0 7 0 syz-executor
*54294 186716 97114 0 7 0x4000000 syz-executor
41640 311807 34082 0 3 0x80 nanoslp syz-executor
41640 393424 34082 0 3 0x4000080 wsevent_read syz-executor
36562 136992 72822 0 3 0x80 nanoslp syz-executor
36562 235790 72822 0 3 0x4000080 fifor syz-executor
36562 200522 72822 0 3 0x4000080 kqread syz-executor
36562 219117 72822 0 3 0x4000080 fsleep syz-executor
18904 290131 74637 0 3 0x80 nanoslp syz-executor
18904 395065 74637 0 3 0x4000080 nanoslp syz-executor
18904 20817 74637 0 3 0x4000080 fsleep syz-executor
74138 487583 40864 0 3 0x80 nanoslp syz-executor
74138 453787 40864 0 3 0x4000080 lockf syz-executor
74138 265695 40864 0 3 0x4000080 fsleep syz-executor
16326 72989 0 0 3 0x14200 acct acct
97114 89405 49617 0 3 0x82 nanoslp syz-executor
40864 110585 49617 0 3 0x82 nanoslp syz-executor
2876 51236 49617 0 3 0x82 nanoslp syz-executor
34082 353092 49617 0 3 0x82 nanoslp syz-executor
5116 422504 49617 0 3 0x82 nanoslp syz-executor
37266 364951 49617 0 3 0x2 biowait syz-executor
72822 351426 49617 0 3 0x82 nanoslp syz-executor
74637 428070 49617 0 3 0x82 nanoslp syz-executor
48930 128877 0 0 3 0x14280 nfsidl nfsio
56991 27384 0 0 3 0x14280 nfsidl nfsio
70056 167040 0 0 3 0x14280 nfsidl nfsio
83466 477583 0 0 3 0x14280 nfsidl nfsio
27706 33852 0 0 3 0x14280 nfsidl nfsio
51530 130083 0 0 3 0x14280 nfsidl nfsio
87678 520918 0 0 3 0x14280 nfsidl nfsio
42250 36326 0 0 3 0x14280 nfsidl nfsio
20685 491154 0 0 3 0x14280 nfsidl nfsio
41294 98511 0 0 3 0x14280 nfsidl nfsio
9535 487790 0 0 3 0x14280 nfsidl nfsio
23791 461843 0 0 3 0x14280 nfsidl nfsio
66985 191202 0 0 3 0x14280 nfsidl nfsio
56773 59649 0 0 3 0x14280 nfsidl nfsio
89774 367441 0 0 3 0x14280 nfsidl nfsio
70862 345829 0 0 3 0x14280 nfsidl nfsio
14770 52121 0 0 3 0x14280 nfsidl nfsio
44487 198427 0 0 3 0x14280 nfsidl nfsio
23035 275186 0 0 3 0x14280 nfsidl nfsio
87127 97464 0 0 3 0x14280 nfsidl nfsio
45642 288193 1 0 3 0x100083 ttyin getty
47602 426266 0 0 3 0x14200 bored sosplice
49617 321727 82393 0 2 0x2 syz-executor
82393 321362 69014 0 3 0x10008a sigsusp ksh
69014 144615 16576 0 3 0x98 kqread sshd-session
16576 274900 52098 0 3 0x92 kqread sshd-session
52098 463074 1 0 3 0x88 kqread sshd
82222 448770 16474 74 3 0x1100092 bpf pflogd
16474 75186 1 0 3 0x80 sbwait pflogd
59234 177191 12560 73 3 0x1100010 biowait syslogd
12560 432021 1 0 3 0x100082 sbwait syslogd
68346 339096 1 0 3 0x100080 kqread resolvd
98221 501355 70296 77 3 0x100092 kqread dhcpleased
26137 243676 70296 77 3 0x100092 kqread dhcpleased
70296 93583 1 0 3 0x80 kqread dhcpleased
84254 344308 0 0 3 0x14200 bored smr
12564 349105 0 0 2 0x14200 zerothread
85136 167832 0 0 3 0x14200 aiodoned aiodoned
89851 413184 0 0 3 0x14200 syncer update
27245 84877 0 0 3 0x14200 cleaner cleaner
93704 113248 0 0 3 0x14200 reaper reaper
6471 357568 0 0 3 0x14200 pgdaemon pagedaemon
29112 313701 0 0 3 0x14200 bored viomb
68363 95209 0 0 3 0x40014200 acpi0 acpi0
54476 471447 0 0 3 0x40014200 idle1
81970 162743 0 0 3 0x14200 bored softnet3
71414 58274 0 0 3 0x14200 bored softnet2
95950 12238 0 0 3 0x14200 bored softnet1
75778 336801 0 0 2 0x14200 softnet0
62742 202307 0 0 2 0x14200 systqmp
67387 373530 0 0 3 0x14200 bored systq
537 336202 0 0 3 0x14200 tmoslp softclockmp
70710 219733 0 0 3 0x40014200 tmoslp softclock
12427 288574 0 0 3 0x40014200 idle0
1 359147 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 54294 (syz-executor) thread 0xffff8000fffee2b8 (186716)
exclusive rwlock netlock r = 0 (0xffffffff83451190)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 ip_sysctl+0x292 sys/netinet/ip_input.c:1727
#2 net_sysctl+0x64a sys/kern/uipc_domain.c:248
#3 sys_sysctl+0x422
#4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#5 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83531c38)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 sysctl_vslock+0x80 sys/kern/kern_sysctl.c:181
#2 net_sysctl+0x5a1 sys/kern/uipc_domain.c:245
#3 sys_sysctl+0x422
#4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#5 Xsyscall+0x128
exclusive rwlock sysctllk r = 0 (0xffffffff834301f0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176
#3 net_sysctl+0x5a1 sys/kern/uipc_domain.c:245
#4 sys_sysctl+0x422
#5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#6 Xsyscall+0x128
Process 41640 (syz-executor) thread 0xffff8000323b4cf0 (393424)
exclusive rrwlock inode r = 0 (0xfffffd807be504e0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 spec_open+0x302 sys/kern/spec_vnops.c:151
#6 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138
#7 vn_open+0x708 sys/kern/vfs_vnops.c:177
#8 vndioctl+0xcb1 sys/dev/vnd.c:457
#9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#10 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
#11 sys_ioctl+0x67c
#12 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
Process 37266 (syz-executor) thread 0xffff8000fffef980 (364951)
exclusive rrwlock inode r = 0 (0xfffffd8055f6ef78)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd807be50a30)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 cache_lookup+0x36e sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160
#8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#10 namei+0x7aa sys/kern/vfs_lookup.c:250
#11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
Process 59234 (syslogd) thread 0xffff8000ffffdbe8 (177191)
exclusive rrwlock inode r = 0 (0xfffffd806e4db0a0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926
#6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#7 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10229 10182K 10428K 166960K 15564 0
pcb 17 16K 17K 166960K 581 0
rtable 227 8K 8K 166960K 4107 0
pf 39 18K 26K 166960K 408 0
ifaddr 45 9K 9K 166960K 563 0
ifgroup 64 2K 2K 166960K 637 0
sysctl 4 1K 3K 166960K 12 0
counters 68 36K 37K 166960K 376 0
ioctlops 0 0K 6K 166960K 1905 0
iov 0 0K 33K 166960K 232 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1502 94K 94K 166960K 5186 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 20K 28K 166960K 47 0
VM map 2 1K 1K 166960K 2 0
sem 18 56K 57K 166960K 109 0
dirhash 15 2K 3K 166960K 96 0
ACPI 1690 195K 286K 166960K 12418 0
file desc 17 61K 97K 166960K 4495 0
sigio 0 0K 0K 166960K 113 0
proc 75 103K 140K 166960K 4019 0
subproc 104 6K 7K 166960K 1601 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 503 0
in_multi 102 7K 7K 166960K 1430 0
ether_multi 1 0K 0K 166960K 24 0
mrt 1 0K 0K 166960K 8 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 169 758K 758K 166960K 169 0
exec 0 0K 1K 166960K 2379 0
pfkey data 0 0K 0K 166960K 40 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 246 73K 109K 166960K 37515 0
UVM aobj 117 7K 7K 166960K 128 0
pinsyscall 42 84K 108K 166960K 8622 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 0K 166960K 151 0
NDP 17 0K 1K 166960K 414 0
temp 79 6824K 6952K 166960K 191089 0
kqueue 14 22K 32K 166960K 469 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 120 525 0 519 3 2 1 3 0 8 0
rtentry 112 1466 0 1364 4 1 3 4 0 8 0
unpcb 144 2443 0 2419 28 22 6 6 0 8 5
syncache 336 22 0 22 12 12 0 1 0 8 0
tcpcb 808 1144 0 1128 44 39 5 11 0 8 3
arp 120 265 0 247 1 0 1 1 0 8 0
inpcb 336 4184 0 4161 69 61 8 18 0 8 5
nd6 136 394 0 369 1 0 1 1 0 8 0
pkpcb 40 93 0 93 12 12 0 1 0 8 0
kcovpl 48 123 0 115 1 0 1 1 0 8 0
ppxss 1168 27 0 27 11 11 0 1 0 8 0
pffrag 232 22 0 17 1 0 1 1 0 482 0
pffrnode 88 22 0 17 1 0 1 1 0 8 0
pffrent 40 190 0 185 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
pfanchor 1288 1 0 1 1 1 0 1 0 8 0
pfstitem 24 362 0 309 1 0 1 1 0 8 0
pfstkey 128 362 0 309 2 0 2 2 0 8 0
pfstate 376 362 0 309 8 2 6 6 0 8 0
pfrule 1344 27 0 22 2 1 1 2 0 8 0
rttmr 136 2 0 1 1 0 1 1 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 5771 0 5289 43 12 31 31 0 8 0
art_table 32 5774 0 5289 4 0 4 4 0 8 0
art_node 16 1460 0 1367 1 0 1 1 0 8 0
sysvmsgpl 40 15 0 9 1 0 1 1 0 8 0
semapl 112 99 0 83 1 0 1 1 0 8 0
shmpl 112 125 0 11 4 0 4 4 0 8 0
dirhash 1024 73 0 54 3 0 3 3 0 8 0
dino2pl 256 6563 0 4824 109 0 109 109 0 8 0
ffsino 272 6563 0 4824 116 0 116 116 0 8 0
nchpl 144 10688 0 9977 67 38 29 67 0 8 0
uvmvnodes 80 8740 0 0 179 0 179 179 0 8 0
vnodes 216 8740 0 0 486 0 486 486 0 8 0
namei 1024 49542 0 49542 9 8 1 2 0 8 1
percpumem 16 202 0 154 1 0 1 1 0 8 0
kstatmem 264 336 0 308 4 2 2 3 0 8 0
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 8 0 8 6 5 1 1 0 8 1
scxspl 216 91295 0 91292 15 14 1 8 1 8 0
plimitpl 152 1039 0 1022 1 0 1 1 0 8 0
sigapl 424 4626 0 4555 12 3 9 9 0 8 0
futexpl 64 42844 0 42840 12 11 1 1 0 8 0
knotepl 120 811 0 0 17 0 17 17 0 8 0
kqueuepl 216 908 0 897 9 6 3 5 0 8 2
pipepl 320 1000 0 973 21 18 3 8 0 8 0
fdescpl 496 4562 0 4531 8 3 5 6 0 8 0
filepl 152 26922 0 26657 65 45 20 20 0 8 8
lockfpl 104 1465 0 1459 2 1 1 2 0 8 0
lockfspl 48 589 0 585 1 0 1 1 0 8 0
sessionpl 144 152 0 143 1 0 1 1 0 8 0
pgrppl 48 315 0 298 1 0 1 1 0 8 0
ucredpl 104 4470 0 4456 1 0 1 1 0 8 0
zombiepl 144 5483 0 5483 1 0 1 1 0 8 1
processpl 1160 4626 0 4555 8 2 6 6 0 8 0
procpl 648 9358 0 9276 10 2 8 8 0 8 0
srpgc 96 24 0 24 9 9 0 1 0 8 0
sosppl 168 16 0 14 6 5 1 1 0 8 0
sockpl 664 7318 0 7265 92 76 16 20 0 8 10
mcl64k 65536 5 0 0 1 0 1 1 0 8 0
mcl16k 16384 6 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 10 0 0 2 0 2 2 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 362 0 0 31 3 28 31 0 8 1
mtagpl 96 120 0 0 2 1 1 2 0 8 0
mbufpl 256 1093 0 0 63 0 63 63 0 8 0
bufpl 280 15055 0 6314 625 0 625 625 0 8 0
anonpl 24 605527 0 599857 186 122 64 81 0 185 16
amapchunkpl 152 121358 0 120753 101 65 36 44 0 158 11
amappl16 200 9568 0 9512 107 93 14 24 0 8 8
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 392 0 380 1 0 1 1 0 8 0
amappl13 176 11 0 11 1 1 0 1 0 8 0
amappl12 168 7050 0 7019 4 2 2 3 0 8 0
amappl11 160 57 0 42 1 0 1 1 0 8 0
amappl10 152 12 0 12 1 1 0 1 0 8 0
amappl9 144 137 0 137 2 2 0 1 0 8 0
amappl8 136 19 0 16 1 0 1 1 0 8 0
amappl7 128 373 0 360 1 0 1 1 0 8 0
amappl6 120 1336 0 1334 1 0 1 1 0 8 0
amappl5 112 617 0 605 1 0 1 1 0 8 0
amappl4 104 705 0 686 1 0 1 1 0 8 0
amappl3 96 23974 0 23861 4 0 4 4 0 8 0
amappl2 88 2442 0 2370 2 0 2 2 0 8 0
amappl1 80 31043 0 30478 15 1 14 15 0 8 0
amappl 88 35950 0 35766 6 1 5 5 0 92 0
dma32768 32768 1 0 1 1 1 0 1 0 8 0
dma8192 8192 1 0 1 1 1 0 1 0 8 0
dma4096 4096 2 0 2 2 1 1 1 0 8 1
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 128 255 0 255 3 2 1 1 0 8 1
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 8 0 8 2 2 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 127 0 11 3 0 3 3 0 8 0
uaddrrnd 24 4562 0 4531 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 4562 0 4531 1 0 1 1 0 8 0
vmmpekpl 168 40199 0 40139 5 1 4 4 0 8 0
vmmpepl 168 283139 0 281235 162 66 96 103 0 357 5
vmsppl 440 4561 0 4531 6 2 4 5 0 8 0
rwobjpl 56 84630 0 74803 146 4 142 142 0 8 1
pdppl 4096 9131 0 9062 258 185 73 87 0 8 4
pvpl 32 44667 0 0 361 2 359 359 0 265 0
pmappl 248 4561 0 4531 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 782 0 335 13 0 13 13 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
ddb{0}> trace
x86_ipi_db(ffffffff83497ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a0b24f0,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a0b2650,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
end of kernel
end trace frame: 0x73b6a6b8bb50, count: -9
ddb{0}> machine ddbcpu 1
Stopped at icmp_mtudisc_timeout+0x111: movq 0(%rax),%rcx
ddb{1}> trace
icmp_mtudisc_timeout(fffffd806bf16d28,0) at icmp_mtudisc_timeout+0x111 sys/netinet/ip_icmp.c:1073
rt_timer_queue_flush(ffffffff8361f408) at rt_timer_queue_flush+0x281 sys/net/route.c:1573
ip_sysctl(ffff80002a08e60c,1,0,ffff80002a08e638,20001300,4) at ip_sysctl+0x7b4 sys/netinet/ip_input.c:1730
net_sysctl(ffff80002a08e604,3,0,ffff80002a08e638,20001300,4,50d09f10adc8c17) at net_sysctl+0x64a sys/kern/uipc_domain.c:248
sys_sysctl(ffff8000fffee2b8,ffff80002a08e770,ffff80002a08e6c0) at sys_sysctl+0x422
syscall(ffff80002a08e770) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a08e770) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa1d1a069b0, count: -7
---
This report is generated by a bot. It may contain errors.
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If the report is a duplicate of another one, reply with:
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If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 8e9d9dd5c33e nfsm_srvnamesiz() may set up an NFSERR_NAMETO..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15e87f29980000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=a9b598327bb587021973
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/83b7ffd94945/disk-8e9d9dd5.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/c8d0c65eb208/bsd-8e9d9dd5.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a32b4b7ce3c2/kernel-8e9d9dd5.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a9b598...@syzkaller.appspotmail.com
kernel: protection fault trap, code=0
Stopped at icmp_mtudisc_timeout+0x111: movq 0(%rax),%rcx
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
the kernel did not panic
ddb{1}> trace
icmp_mtudisc_timeout(fffffd806bf16d28,0) at icmp_mtudisc_timeout+0x111 sys/netinet/ip_icmp.c:1073
rt_timer_queue_flush(ffffffff8361f408) at rt_timer_queue_flush+0x281 sys/net/route.c:1573
ip_sysctl(ffff80002a08e60c,1,0,ffff80002a08e638,20001300,4) at ip_sysctl+0x7b4 sys/netinet/ip_input.c:1730
net_sysctl(ffff80002a08e604,3,0,ffff80002a08e638,20001300,4,50d09f10adc8c17) at net_sysctl+0x64a sys/kern/uipc_domain.c:248
sys_sysctl(ffff8000fffee2b8,ffff80002a08e770,ffff80002a08e6c0) at sys_sysctl+0x422
syscall(ffff80002a08e770) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a08e770) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa1d1a069b0, count: -7
ddb{1}> show registers
rdi 0x14
rsi 0x14
rbp 0xffff80002a08e450
rbx 0x3
rdx 0xffff8000011f37c0
rcx 0xffff8000fffee2b8
rax 0xfb881030fc336ec6
r8 0xffffffff82f09070 tcp_mtudisc_increase
r9 0
r10 0x3fdd9501ae9f1ad4
r11 0x1ea8ebd3927e69f4
r12 0xffff800000039058
r13 0x14
r14 0
r15 0xfffffd806bf16d28
rip 0xffffffff826db6e1 icmp_mtudisc_timeout+0x111
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a08e400
ss 0x10
icmp_mtudisc_timeout+0x111: movq 0(%rax),%rcx
ddb{1}> show proc
PROC (syz-executor) tid=186716 pid=54294 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=84, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000323b5200,0xffff8000fffee7d8
process=0xffff8000345a1b40 user=0xffff80002a089000, vmspace=0xfffffd806cecd540
estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
50744 160797 5116 0 3 0x80 nanoslp syz-executor
50744 196773 5116 0 3 0x4000080 fsleep syz-executor
29858 380943 2876 0 2 0 syz-executor
29858 209127 2876 0 3 0x4000080 sbwait syz-executor
54294 275152 97114 0 7 0 syz-executor
*54294 186716 97114 0 7 0x4000000 syz-executor
41640 311807 34082 0 3 0x80 nanoslp syz-executor
41640 393424 34082 0 3 0x4000080 wsevent_read syz-executor
36562 136992 72822 0 3 0x80 nanoslp syz-executor
36562 235790 72822 0 3 0x4000080 fifor syz-executor
36562 200522 72822 0 3 0x4000080 kqread syz-executor
36562 219117 72822 0 3 0x4000080 fsleep syz-executor
18904 290131 74637 0 3 0x80 nanoslp syz-executor
18904 395065 74637 0 3 0x4000080 nanoslp syz-executor
18904 20817 74637 0 3 0x4000080 fsleep syz-executor
74138 487583 40864 0 3 0x80 nanoslp syz-executor
74138 453787 40864 0 3 0x4000080 lockf syz-executor
74138 265695 40864 0 3 0x4000080 fsleep syz-executor
16326 72989 0 0 3 0x14200 acct acct
97114 89405 49617 0 3 0x82 nanoslp syz-executor
40864 110585 49617 0 3 0x82 nanoslp syz-executor
2876 51236 49617 0 3 0x82 nanoslp syz-executor
34082 353092 49617 0 3 0x82 nanoslp syz-executor
5116 422504 49617 0 3 0x82 nanoslp syz-executor
37266 364951 49617 0 3 0x2 biowait syz-executor
72822 351426 49617 0 3 0x82 nanoslp syz-executor
74637 428070 49617 0 3 0x82 nanoslp syz-executor
48930 128877 0 0 3 0x14280 nfsidl nfsio
56991 27384 0 0 3 0x14280 nfsidl nfsio
70056 167040 0 0 3 0x14280 nfsidl nfsio
83466 477583 0 0 3 0x14280 nfsidl nfsio
27706 33852 0 0 3 0x14280 nfsidl nfsio
51530 130083 0 0 3 0x14280 nfsidl nfsio
87678 520918 0 0 3 0x14280 nfsidl nfsio
42250 36326 0 0 3 0x14280 nfsidl nfsio
20685 491154 0 0 3 0x14280 nfsidl nfsio
41294 98511 0 0 3 0x14280 nfsidl nfsio
9535 487790 0 0 3 0x14280 nfsidl nfsio
23791 461843 0 0 3 0x14280 nfsidl nfsio
66985 191202 0 0 3 0x14280 nfsidl nfsio
56773 59649 0 0 3 0x14280 nfsidl nfsio
89774 367441 0 0 3 0x14280 nfsidl nfsio
70862 345829 0 0 3 0x14280 nfsidl nfsio
14770 52121 0 0 3 0x14280 nfsidl nfsio
44487 198427 0 0 3 0x14280 nfsidl nfsio
23035 275186 0 0 3 0x14280 nfsidl nfsio
87127 97464 0 0 3 0x14280 nfsidl nfsio
45642 288193 1 0 3 0x100083 ttyin getty
47602 426266 0 0 3 0x14200 bored sosplice
49617 321727 82393 0 2 0x2 syz-executor
82393 321362 69014 0 3 0x10008a sigsusp ksh
69014 144615 16576 0 3 0x98 kqread sshd-session
16576 274900 52098 0 3 0x92 kqread sshd-session
52098 463074 1 0 3 0x88 kqread sshd
82222 448770 16474 74 3 0x1100092 bpf pflogd
16474 75186 1 0 3 0x80 sbwait pflogd
59234 177191 12560 73 3 0x1100010 biowait syslogd
12560 432021 1 0 3 0x100082 sbwait syslogd
68346 339096 1 0 3 0x100080 kqread resolvd
98221 501355 70296 77 3 0x100092 kqread dhcpleased
26137 243676 70296 77 3 0x100092 kqread dhcpleased
70296 93583 1 0 3 0x80 kqread dhcpleased
84254 344308 0 0 3 0x14200 bored smr
12564 349105 0 0 2 0x14200 zerothread
85136 167832 0 0 3 0x14200 aiodoned aiodoned
89851 413184 0 0 3 0x14200 syncer update
27245 84877 0 0 3 0x14200 cleaner cleaner
93704 113248 0 0 3 0x14200 reaper reaper
6471 357568 0 0 3 0x14200 pgdaemon pagedaemon
29112 313701 0 0 3 0x14200 bored viomb
68363 95209 0 0 3 0x40014200 acpi0 acpi0
54476 471447 0 0 3 0x40014200 idle1
81970 162743 0 0 3 0x14200 bored softnet3
71414 58274 0 0 3 0x14200 bored softnet2
95950 12238 0 0 3 0x14200 bored softnet1
75778 336801 0 0 2 0x14200 softnet0
62742 202307 0 0 2 0x14200 systqmp
67387 373530 0 0 3 0x14200 bored systq
537 336202 0 0 3 0x14200 tmoslp softclockmp
70710 219733 0 0 3 0x40014200 tmoslp softclock
12427 288574 0 0 3 0x40014200 idle0
1 359147 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 54294 (syz-executor) thread 0xffff8000fffee2b8 (186716)
exclusive rwlock netlock r = 0 (0xffffffff83451190)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 ip_sysctl+0x292 sys/netinet/ip_input.c:1727
#2 net_sysctl+0x64a sys/kern/uipc_domain.c:248
#3 sys_sysctl+0x422
#4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#5 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83531c38)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 sysctl_vslock+0x80 sys/kern/kern_sysctl.c:181
#2 net_sysctl+0x5a1 sys/kern/uipc_domain.c:245
#3 sys_sysctl+0x422
#4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#5 Xsyscall+0x128
exclusive rwlock sysctllk r = 0 (0xffffffff834301f0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:176
#3 net_sysctl+0x5a1 sys/kern/uipc_domain.c:245
#4 sys_sysctl+0x422
#5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#6 Xsyscall+0x128
Process 41640 (syz-executor) thread 0xffff8000323b4cf0 (393424)
exclusive rrwlock inode r = 0 (0xfffffd807be504e0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 spec_open+0x302 sys/kern/spec_vnops.c:151
#6 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138
#7 vn_open+0x708 sys/kern/vfs_vnops.c:177
#8 vndioctl+0xcb1 sys/dev/vnd.c:457
#9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#10 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
#11 sys_ioctl+0x67c
#12 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
Process 37266 (syz-executor) thread 0xffff8000fffef980 (364951)
exclusive rrwlock inode r = 0 (0xfffffd8055f6ef78)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd807be50a30)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 cache_lookup+0x36e sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160
#8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#10 namei+0x7aa sys/kern/vfs_lookup.c:250
#11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
Process 59234 (syslogd) thread 0xffff8000ffffdbe8 (177191)
exclusive rrwlock inode r = 0 (0xfffffd806e4db0a0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926
#6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#7 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10229 10182K 10428K 166960K 15564 0
pcb 17 16K 17K 166960K 581 0
rtable 227 8K 8K 166960K 4107 0
pf 39 18K 26K 166960K 408 0
ifaddr 45 9K 9K 166960K 563 0
ifgroup 64 2K 2K 166960K 637 0
sysctl 4 1K 3K 166960K 12 0
counters 68 36K 37K 166960K 376 0
ioctlops 0 0K 6K 166960K 1905 0
iov 0 0K 33K 166960K 232 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1502 94K 94K 166960K 5186 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 20K 28K 166960K 47 0
VM map 2 1K 1K 166960K 2 0
sem 18 56K 57K 166960K 109 0
dirhash 15 2K 3K 166960K 96 0
ACPI 1690 195K 286K 166960K 12418 0
file desc 17 61K 97K 166960K 4495 0
sigio 0 0K 0K 166960K 113 0
proc 75 103K 140K 166960K 4019 0
subproc 104 6K 7K 166960K 1601 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 503 0
in_multi 102 7K 7K 166960K 1430 0
ether_multi 1 0K 0K 166960K 24 0
mrt 1 0K 0K 166960K 8 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 169 758K 758K 166960K 169 0
exec 0 0K 1K 166960K 2379 0
pfkey data 0 0K 0K 166960K 40 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 246 73K 109K 166960K 37515 0
UVM aobj 117 7K 7K 166960K 128 0
pinsyscall 42 84K 108K 166960K 8622 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 0K 166960K 151 0
NDP 17 0K 1K 166960K 414 0
temp 79 6824K 6952K 166960K 191089 0
kqueue 14 22K 32K 166960K 469 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 120 525 0 519 3 2 1 3 0 8 0
rtentry 112 1466 0 1364 4 1 3 4 0 8 0
unpcb 144 2443 0 2419 28 22 6 6 0 8 5
syncache 336 22 0 22 12 12 0 1 0 8 0
tcpcb 808 1144 0 1128 44 39 5 11 0 8 3
arp 120 265 0 247 1 0 1 1 0 8 0
inpcb 336 4184 0 4161 69 61 8 18 0 8 5
nd6 136 394 0 369 1 0 1 1 0 8 0
pkpcb 40 93 0 93 12 12 0 1 0 8 0
kcovpl 48 123 0 115 1 0 1 1 0 8 0
ppxss 1168 27 0 27 11 11 0 1 0 8 0
pffrag 232 22 0 17 1 0 1 1 0 482 0
pffrnode 88 22 0 17 1 0 1 1 0 8 0
pffrent 40 190 0 185 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
pfanchor 1288 1 0 1 1 1 0 1 0 8 0
pfstitem 24 362 0 309 1 0 1 1 0 8 0
pfstkey 128 362 0 309 2 0 2 2 0 8 0
pfstate 376 362 0 309 8 2 6 6 0 8 0
pfrule 1344 27 0 22 2 1 1 2 0 8 0
rttmr 136 2 0 1 1 0 1 1 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 5771 0 5289 43 12 31 31 0 8 0
art_table 32 5774 0 5289 4 0 4 4 0 8 0
art_node 16 1460 0 1367 1 0 1 1 0 8 0
sysvmsgpl 40 15 0 9 1 0 1 1 0 8 0
semapl 112 99 0 83 1 0 1 1 0 8 0
shmpl 112 125 0 11 4 0 4 4 0 8 0
dirhash 1024 73 0 54 3 0 3 3 0 8 0
dino2pl 256 6563 0 4824 109 0 109 109 0 8 0
ffsino 272 6563 0 4824 116 0 116 116 0 8 0
nchpl 144 10688 0 9977 67 38 29 67 0 8 0
uvmvnodes 80 8740 0 0 179 0 179 179 0 8 0
vnodes 216 8740 0 0 486 0 486 486 0 8 0
namei 1024 49542 0 49542 9 8 1 2 0 8 1
percpumem 16 202 0 154 1 0 1 1 0 8 0
kstatmem 264 336 0 308 4 2 2 3 0 8 0
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 8 0 8 6 5 1 1 0 8 1
scxspl 216 91295 0 91292 15 14 1 8 1 8 0
plimitpl 152 1039 0 1022 1 0 1 1 0 8 0
sigapl 424 4626 0 4555 12 3 9 9 0 8 0
futexpl 64 42844 0 42840 12 11 1 1 0 8 0
knotepl 120 811 0 0 17 0 17 17 0 8 0
kqueuepl 216 908 0 897 9 6 3 5 0 8 2
pipepl 320 1000 0 973 21 18 3 8 0 8 0
fdescpl 496 4562 0 4531 8 3 5 6 0 8 0
filepl 152 26922 0 26657 65 45 20 20 0 8 8
lockfpl 104 1465 0 1459 2 1 1 2 0 8 0
lockfspl 48 589 0 585 1 0 1 1 0 8 0
sessionpl 144 152 0 143 1 0 1 1 0 8 0
pgrppl 48 315 0 298 1 0 1 1 0 8 0
ucredpl 104 4470 0 4456 1 0 1 1 0 8 0
zombiepl 144 5483 0 5483 1 0 1 1 0 8 1
processpl 1160 4626 0 4555 8 2 6 6 0 8 0
procpl 648 9358 0 9276 10 2 8 8 0 8 0
srpgc 96 24 0 24 9 9 0 1 0 8 0
sosppl 168 16 0 14 6 5 1 1 0 8 0
sockpl 664 7318 0 7265 92 76 16 20 0 8 10
mcl64k 65536 5 0 0 1 0 1 1 0 8 0
mcl16k 16384 6 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 10 0 0 2 0 2 2 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 362 0 0 31 3 28 31 0 8 1
mtagpl 96 120 0 0 2 1 1 2 0 8 0
mbufpl 256 1093 0 0 63 0 63 63 0 8 0
bufpl 280 15055 0 6314 625 0 625 625 0 8 0
anonpl 24 605527 0 599857 186 122 64 81 0 185 16
amapchunkpl 152 121358 0 120753 101 65 36 44 0 158 11
amappl16 200 9568 0 9512 107 93 14 24 0 8 8
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 392 0 380 1 0 1 1 0 8 0
amappl13 176 11 0 11 1 1 0 1 0 8 0
amappl12 168 7050 0 7019 4 2 2 3 0 8 0
amappl11 160 57 0 42 1 0 1 1 0 8 0
amappl10 152 12 0 12 1 1 0 1 0 8 0
amappl9 144 137 0 137 2 2 0 1 0 8 0
amappl8 136 19 0 16 1 0 1 1 0 8 0
amappl7 128 373 0 360 1 0 1 1 0 8 0
amappl6 120 1336 0 1334 1 0 1 1 0 8 0
amappl5 112 617 0 605 1 0 1 1 0 8 0
amappl4 104 705 0 686 1 0 1 1 0 8 0
amappl3 96 23974 0 23861 4 0 4 4 0 8 0
amappl2 88 2442 0 2370 2 0 2 2 0 8 0
amappl1 80 31043 0 30478 15 1 14 15 0 8 0
amappl 88 35950 0 35766 6 1 5 5 0 92 0
dma32768 32768 1 0 1 1 1 0 1 0 8 0
dma8192 8192 1 0 1 1 1 0 1 0 8 0
dma4096 4096 2 0 2 2 1 1 1 0 8 1
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 128 255 0 255 3 2 1 1 0 8 1
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 8 0 8 2 2 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 127 0 11 3 0 3 3 0 8 0
uaddrrnd 24 4562 0 4531 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 4562 0 4531 1 0 1 1 0 8 0
vmmpekpl 168 40199 0 40139 5 1 4 4 0 8 0
vmmpepl 168 283139 0 281235 162 66 96 103 0 357 5
vmsppl 440 4561 0 4531 6 2 4 5 0 8 0
rwobjpl 56 84630 0 74803 146 4 142 142 0 8 1
pdppl 4096 9131 0 9062 258 185 73 87 0 8 4
pvpl 32 44667 0 0 361 2 359 359 0 265 0
pmappl 248 4561 0 4531 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 782 0 335 13 0 13 13 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
ddb{0}> trace
x86_ipi_db(ffffffff83497ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a0b24f0,ffff800000079e00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83531a30) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a0b2650,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
end of kernel
end trace frame: 0x73b6a6b8bb50, count: -9
ddb{0}> machine ddbcpu 1
Stopped at icmp_mtudisc_timeout+0x111: movq 0(%rax),%rcx
ddb{1}> trace
icmp_mtudisc_timeout(fffffd806bf16d28,0) at icmp_mtudisc_timeout+0x111 sys/netinet/ip_icmp.c:1073
rt_timer_queue_flush(ffffffff8361f408) at rt_timer_queue_flush+0x281 sys/net/route.c:1573
ip_sysctl(ffff80002a08e60c,1,0,ffff80002a08e638,20001300,4) at ip_sysctl+0x7b4 sys/netinet/ip_input.c:1730
net_sysctl(ffff80002a08e604,3,0,ffff80002a08e638,20001300,4,50d09f10adc8c17) at net_sysctl+0x64a sys/kern/uipc_domain.c:248
sys_sysctl(ffff8000fffee2b8,ffff80002a08e770,ffff80002a08e6c0) at sys_sysctl+0x422
syscall(ffff80002a08e770) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a08e770) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa1d1a069b0, count: -7
---
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