uvm_fault: schedclock
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syzbot
Sep 2, 2023, 11:58:57 PM9/2/23
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: a514d4594e28 Fix comment about skipped interfaces
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1394483fa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=c0a2f5b539e2150f7cfa
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/317440ef4728/disk-a514d459.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/b2d557894f47/bsd-a514d459.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d6c37c3f819b/kernel-a514d459.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c0a2f5...@syzkaller.appspotmail.com
login: kernel: page fault trap, code=0
Stopped at schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
the kernel did not panic
ddb> trace
schedclock(ffff8000216a9800) at schedclock+0xa6 sys/kern/sched_bsd.c:569
clockintr_statclock(ffffffff82bd2ab8,ffff80002b423c90) at clockintr_statclock+0x118 sys/kern/kern_clockintr.c:518
clockintr_dispatch(ffff80002b423c90) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:266
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
__sanitizer_cov_trace_const_cmp4(10,ffff80002b423d40) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3363 [inline]
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 sys/arch/amd64/amd64/pmap.c:519
buf_map(fffffd80715ab020) at buf_map+0x22d sys/kern/vfs_biomem.c:120
buf_get(0,0,8000000) at buf_get+0x763 sys/kern/vfs_bio.c:1189
geteblk(8000000) at geteblk+0x3c sys/kern/vfs_bio.c:1071
readdisklabel(2902,ffffffff8228c160,ffff800000eaf200,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96
vndopen(2902,1,2000,ffff8000216a9800) at vndopen+0x17e sys/dev/vnd.c:204
spec_open(ffff80002b424178) at spec_open+0x3e3 sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806ee88de0,1,fffffd807f7d7820,ffff8000216a9800) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138
vn_open(ffff80002b4243c8,1,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177
doopenat(ffff8000216a9800,ffffff9c,20000200,0,0,ffff80002b4245a0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126
syscall(ffff80002b424620) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd8e4de92040, count: -18
ddb> show registers
rdi 0x24
rsi 0x1
rbp 0xffff80002b423b90
rbx 0x24
rdx 0
rcx 0x34c1 __ALIGN_SIZE+0x24c1
rax 0
r8 0
r9 0
r10 0
r11 0xaa06f45dc1149653
r12 0x1
r13 0x22ee6e9d4d
r14 0xffff8000216a9800
r15 0xc
rip 0xffffffff823776c6 schedclock+0xa6
cs 0x8
rflags 0x10297 __ALIGN_SIZE+0xf297
rsp 0xffff80002b423b50
ss 0x10
schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb> show proc
PROC (kernel: page fault trap, code=0
Faulted in DDB; continuing...
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10177 6420K 7898K 78643K 17154 0
pcb 13 12K 13K 78643K 213 0
rtable 239 7K 7K 78643K 525 0
pf 32 9K 9K 78643K 88 0
ifaddr 44 11K 12K 78643K 89 0
ifgroup 55 2K 2K 78643K 149 0
sysctl 2 0K 0K 78643K 2 0
counters 29 17K 17K 78643K 56 0
ioctlops 0 0K 2K 78643K 130 0
iov 0 0K 16K 78643K 319 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1502 94K 94K 78643K 3512 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 47 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 96 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 14 49K 73K 78643K 2918 0
sigio 1 0K 0K 78643K 134 0
proc 56 58K 83K 78643K 708 0
subproc 104 6K 6K 78643K 156 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 171 0
in_multi 99 7K 7K 78643K 201 0
ether_multi 1 0K 0K 78643K 4 0
mrt 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 61 281K 281K 78643K 61 0
exec 0 0K 1K 78643K 738 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 334 91K 102K 78643K 29064 0
UVM aobj 131 8K 8K 78643K 155 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 25 0
NDP 14 0K 2K 78643K 63 0
temp 74 5912K 5992K 78643K 28223 0
kqueue 12 18K 23K 78643K 210 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 106 0 103 1 0 1 1 0 8 0
rtentry 112 161 0 50 4 0 4 4 0 8 0
unpcb 144 2504 0 2491 24 14 10 10 0 8 9
syncache 304 30 0 30 4 4 0 1 0 8 0
tcpqe 32 82 0 82 4 4 0 1 0 8 0
tcpcb 808 2671 0 2659 32 24 8 9 0 8 6
arp 88 26 0 8 1 0 1 1 0 8 0
ipq 40 3 0 2 1 0 1 1 0 8 0
ipqe 40 10 0 9 1 0 1 1 0 8 0
inpcb 336 3751 0 3736 36 29 7 14 0 8 5
nd6 104 38 0 13 1 0 1 1 0 8 0
kcovpl 48 12 0 4 1 0 1 1 0 8 0
ppxss 1160 8 0 8 2 2 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 639 0 178 29 0 29 29 0 8 0
art_table 32 640 0 178 4 0 4 4 0 8 0
art_node 16 156 0 55 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 89 0 79 1 0 1 1 0 8 0
shmpl 112 152 0 24 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dirhash: pool(0xffffffff82d4a2c0:dirhash): free list modified: page 0xffff800021683000; item ordinal 0; addr 0xffff800021684000 (p 0xfffffd806e7be000); offset 0x0=0x0
pool(dirhash): free list modified: page 0xffff800021683000; item ordinal 0; addr 0xffff800021684000 (p 0xfffffd806e7be000); offset 0x0=0x0
dirhash: pool(0xffffffff82d4a2c0:dirhash): page inconsistency: page 0xffff800021683000; item ordinal 1; addr 0xb9fa2fbbf796aae3
dino2pl 256 5411 0 3959 91 0 91 91 0 8 0
ffsino 240 5411 0 3959 86 0 86 86 0 8 0
nchpl 144 9826 0 9331 63 41 22 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 33917 0 33916 5 4 1 3 0 8 0
namei: pool(0xffffffff82c29088:namei): free list modified: page 0xffff800021653000; item ordinal 0; addr 0xffff800021654000 (p 0xfffffd8071156000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff800021653000; item ordinal 0; addr 0xffff800021654000 (p 0xfffffd8071156000); offset 0x0=0x0
namei: pool(0xffffffff82c29088:namei): page inconsistency: page 0xffff800021653000; item ordinal 1; addr 0xaadaf744c8582130
vmpool 664 18 0 18 3 3 0 1 0 8 0
kstatmem 264 78 0 54 2 0 2 2 0 8 0
scxspl 216 27944 0 27941 12 11 1 8 1 8 0
plimitpl 152 463 0 448 1 0 1 1 0 8 0
sigapl 424 3233 0 3170 8 0 8 8 0 8 0
futexpl 64 27954 0 27953 1 0 1 1 0 8 0
knotepl 120 27254 0 27174 4 0 4 4 0 8 0
kqueuepl 184 615 0 607 7 6 1 4 0 8 0
pipepl 288 558 0 530 13 10 3 7 0 8 0
fdescpl 432 3195 0 3170 4 0 4 4 0 8 0
filepl 120 21718 0 21483 38 23 15 18 0 8 7
lockfpl 104 1791 0 1789 5 4 1 3 0 8 0
lockfspl 48 795 0 793 2 1 1 2 0 8 0
sessionpl 144 28 0 12 1 0 1 1 0 8 0
pgrppl 48 73 0 57 1 0 1 1 0 8 0
ucredpl 104 3259 0 3248 1 0 1 1 0 8 0
zombiepl 144 3171 0 3170 1 0 1 1 0 8 0
processpl 1008 3233 0 3170 10 1 9 9 0 8 0
processpl: pool(0xffffffff82d4cf58:processpl): page inconsistency: page 0x0; at page head addr 0xffff8000216f5f90 (p 0xffff8000216f4000)
processpl: pool(0xffffffff82d4cf58:processpl): page inconsistency: page 0x0; at page head addr 0xffff800021709f90 (p 0xffff800021708000)
procpl 680 7459 0 7379 9 1 8 9 0 8 0
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff800021695000; item ordinal 0; addr 0xffff800021696d50 (p 0xfffffd806d7f8000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff800021695000; item ordinal 0; addr 0xffff800021696d50 (p 0xfffffd806d7f8000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff800021695000; item ordinal 1; addr 0xc72e076939194159
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216ff000; item ordinal 0; addr 0xffff8000217007e8 (p 0xfffffd8064a72000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216ff000; item ordinal 0; addr 0xffff8000217007e8 (p 0xfffffd8064a72000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216ff000; item ordinal 1; addr 0xdb9d936325230a8c
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff800021633000; item ordinal 0; addr 0xffff800021633558 (p 0xfffffd807f7e4000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff800021633000; item ordinal 0; addr 0xffff800021633558 (p 0xfffffd807f7e4000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff800021633000; item ordinal 1; addr 0xef89080761a0228a
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216d3000; item ordinal 0; addr 0xffff8000216d3560 (p 0xfffffd8067c2c000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216d3000; item ordinal 0; addr 0xffff8000216d3560 (p 0xfffffd8067c2c000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216d3000; item ordinal 1; addr 0x32394a3298cbb75
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216d5000; item ordinal 0; addr 0xffff8000216d5570 (p 0xfffffd806a22e000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216d5000; item ordinal 0; addr 0xffff8000216d5570 (p 0xfffffd806a22e000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216d5000; item ordinal 1; addr 0xf4103b06bc65a1ea
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216a9000; item ordinal 0; addr 0xffff8000216a9008 (p 0xfffffd8064a72000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216a9000; item ordinal 0; addr 0xffff8000216a9008 (p 0xfffffd8064a72000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216a9000; item ordinal 1; addr 0x5966d8f297f7e395
sosppl 168 43 0 40 3 2 1 1 0 8 0
sockpl 456 6366 0 6335 126 93 33 33 0 8 28
mcl64k 65536 117 0 117 4 3 1 1 0 8 1
mcl16k 16384 59 0 59 6 5 1 1 0 8 1
mcl12k 12288 94 0 94 3 2 1 1 0 8 1
mcl9k 9216 54 0 54 7 6 1 1 0 8 1
mcl8k 8192 259 0 258 3 2 1 1 0 8 0
mcl4k 4096 306 0 306 2 1 1 1 0 8 1
mcl2k2 2112 28 0 28 4 3 1 1 0 8 1
mcl2k 2048 73350 0 73307 32 25 7 27 0 8 0
mtagpl 96 878 0 394 18 1 17 17 0 8 2
mbufpl 256 136678 0 136088 61 10 51 51 0 8 7
bufpl 288 8683 0 2284 458 0 458 458 0 8 0
anonpl 24 440580 0 429152 152 56 96 107 0 188 8
amapchunkpl 152 92331 0 91562 46 10 36 38 0 158 2
amappl16 200 10637 0 10225 56 33 23 35 0 8 1
amappl15 192 14 0 14 3 3 0 1 0 8 0
amappl14 184 165 0 153 2 1 1 2 0 8 0
amappl13 176 16 0 14 1 0 1 1 0 8 0
amappl12 168 3917 0 3891 2 0 2 2 0 8 0
amappl11 160 56 0 46 1 0 1 1 0 8 0
amappl10 152 30 0 21 1 0 1 1 0 8 0
amappl9 144 152 0 151 1 0 1 1 0 8 0
amappl8 136 295 0 216 3 0 3 3 0 8 0
amappl7 128 78 0 67 1 0 1 1 0 8 0
amappl6 120 277 0 257 2 1 1 2 0 8 0
amappl5 112 254 0 246 1 0 1 1 0 8 0
amappl4 104 609 0 570 3 1 2 3 0 8 0
amappl3 96 19006 0 18937 5 2 3 3 0 8 0
amappl2 88 3539 0 3479 3 1 2 3 0 8 0
amappl1 80 20070 0 19576 22 10 12 22 0 8 0
amappl 88 28438 0 28229 7 1 6 6 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 154 0 24 3 0 3 3 0 8 0
uaddrrnd 24 3213 0 3188 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 3213 0 3188 1 0 1 1 0 8 0
vmmpekpl 168 26477 0 26419 3 0 3 3 0 8 0
vmmpepl 168 206369 0 204268 174 61 113 117 0 357 13
vmsppl 368 3212 0 3188 3 0 3 3 0 8 0
rwobjpl 24 61497 0 54033 48 1 47 47 0 8 0
pdppl 4096 6433 0 6376 195 130 65 69 0 8 8
pvpl 32 1049329 0 1032720 459 281 178 360 0 265 17
pmappl 216 3212 0 3188 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1072 0 246 24 0 24 24 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
schedclock(ffff8000216a9800) at schedclock+0xa6 sys/kern/sched_bsd.c:569
clockintr_statclock(ffffffff82bd2ab8,ffff80002b423c90) at clockintr_statclock+0x118 sys/kern/kern_clockintr.c:518
clockintr_dispatch(ffff80002b423c90) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:266
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
__sanitizer_cov_trace_const_cmp4(10,ffff80002b423d40) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3363 [inline]
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 sys/arch/amd64/amd64/pmap.c:519
buf_map(fffffd80715ab020) at buf_map+0x22d sys/kern/vfs_biomem.c:120
buf_get(0,0,8000000) at buf_get+0x763 sys/kern/vfs_bio.c:1189
geteblk(8000000) at geteblk+0x3c sys/kern/vfs_bio.c:1071
readdisklabel(2902,ffffffff8228c160,ffff800000eaf200,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96
vndopen(2902,1,2000,ffff8000216a9800) at vndopen+0x17e sys/dev/vnd.c:204
spec_open(ffff80002b424178) at spec_open+0x3e3 sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806ee88de0,1,fffffd807f7d7820,ffff8000216a9800) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138
vn_open(ffff80002b4243c8,1,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177
doopenat(ffff8000216a9800,ffffff9c,20000200,0,0,ffff80002b4245a0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126
syscall(ffff80002b424620) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd8e4de92040, count: -18
ddb> machine ddbcpu 1
No such command
ddb> trace
schedclock(ffff8000216a9800) at schedclock+0xa6 sys/kern/sched_bsd.c:569
clockintr_statclock(ffffffff82bd2ab8,ffff80002b423c90) at clockintr_statclock+0x118 sys/kern/kern_clockintr.c:518
clockintr_dispatch(ffff80002b423c90) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:266
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
__sanitizer_cov_trace_const_cmp4(10,ffff80002b423d40) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3363 [inline]
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 sys/arch/amd64/amd64/pmap.c:519
buf_map(fffffd80715ab020) at buf_map+0x22d sys/kern/vfs_biomem.c:120
buf_get(0,0,8000000) at buf_get+0x763 sys/kern/vfs_bio.c:1189
geteblk(8000000) at geteblk+0x3c sys/kern/vfs_bio.c:1071
readdisklabel(2902,ffffffff8228c160,ffff800000eaf200,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96
vndopen(2902,1,2000,ffff8000216a9800) at vndopen+0x17e sys/dev/vnd.c:204
spec_open(ffff80002b424178) at spec_open+0x3e3 sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806ee88de0,1,fffffd807f7d7820,ffff8000216a9800) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138
vn_open(ffff80002b4243c8,1,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177
doopenat(ffff8000216a9800,ffffff9c,20000200,0,0,ffff80002b4245a0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126
syscall(ffff80002b424620) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd8e4de92040, count: -18
---
This report is generated by a bot. It may contain errors.
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If the bug is already fixed, let syzbot know by replying with:
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If you want to overwrite bug's subsystems, reply with:
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If the bug is a duplicate of another bug, reply with:
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If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: a514d4594e28 Fix comment about skipped interfaces
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1394483fa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=c0a2f5b539e2150f7cfa
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/317440ef4728/disk-a514d459.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/b2d557894f47/bsd-a514d459.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d6c37c3f819b/kernel-a514d459.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c0a2f5...@syzkaller.appspotmail.com
login: kernel: page fault trap, code=0
Stopped at schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
the kernel did not panic
ddb> trace
schedclock(ffff8000216a9800) at schedclock+0xa6 sys/kern/sched_bsd.c:569
clockintr_statclock(ffffffff82bd2ab8,ffff80002b423c90) at clockintr_statclock+0x118 sys/kern/kern_clockintr.c:518
clockintr_dispatch(ffff80002b423c90) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:266
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
__sanitizer_cov_trace_const_cmp4(10,ffff80002b423d40) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3363 [inline]
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 sys/arch/amd64/amd64/pmap.c:519
buf_map(fffffd80715ab020) at buf_map+0x22d sys/kern/vfs_biomem.c:120
buf_get(0,0,8000000) at buf_get+0x763 sys/kern/vfs_bio.c:1189
geteblk(8000000) at geteblk+0x3c sys/kern/vfs_bio.c:1071
readdisklabel(2902,ffffffff8228c160,ffff800000eaf200,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96
vndopen(2902,1,2000,ffff8000216a9800) at vndopen+0x17e sys/dev/vnd.c:204
spec_open(ffff80002b424178) at spec_open+0x3e3 sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806ee88de0,1,fffffd807f7d7820,ffff8000216a9800) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138
vn_open(ffff80002b4243c8,1,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177
doopenat(ffff8000216a9800,ffffff9c,20000200,0,0,ffff80002b4245a0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126
syscall(ffff80002b424620) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd8e4de92040, count: -18
ddb> show registers
rdi 0x24
rsi 0x1
rbp 0xffff80002b423b90
rbx 0x24
rdx 0
rcx 0x34c1 __ALIGN_SIZE+0x24c1
rax 0
r8 0
r9 0
r10 0
r11 0xaa06f45dc1149653
r12 0x1
r13 0x22ee6e9d4d
r14 0xffff8000216a9800
r15 0xc
rip 0xffffffff823776c6 schedclock+0xa6
cs 0x8
rflags 0x10297 __ALIGN_SIZE+0xf297
rsp 0xffff80002b423b50
ss 0x10
schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb> show proc
PROC (kernel: page fault trap, code=0
Faulted in DDB; continuing...
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10177 6420K 7898K 78643K 17154 0
pcb 13 12K 13K 78643K 213 0
rtable 239 7K 7K 78643K 525 0
pf 32 9K 9K 78643K 88 0
ifaddr 44 11K 12K 78643K 89 0
ifgroup 55 2K 2K 78643K 149 0
sysctl 2 0K 0K 78643K 2 0
counters 29 17K 17K 78643K 56 0
ioctlops 0 0K 2K 78643K 130 0
iov 0 0K 16K 78643K 319 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1502 94K 94K 78643K 3512 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 47 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 96 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 14 49K 73K 78643K 2918 0
sigio 1 0K 0K 78643K 134 0
proc 56 58K 83K 78643K 708 0
subproc 104 6K 6K 78643K 156 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 171 0
in_multi 99 7K 7K 78643K 201 0
ether_multi 1 0K 0K 78643K 4 0
mrt 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 61 281K 281K 78643K 61 0
exec 0 0K 1K 78643K 738 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 334 91K 102K 78643K 29064 0
UVM aobj 131 8K 8K 78643K 155 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 25 0
NDP 14 0K 2K 78643K 63 0
temp 74 5912K 5992K 78643K 28223 0
kqueue 12 18K 23K 78643K 210 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 106 0 103 1 0 1 1 0 8 0
rtentry 112 161 0 50 4 0 4 4 0 8 0
unpcb 144 2504 0 2491 24 14 10 10 0 8 9
syncache 304 30 0 30 4 4 0 1 0 8 0
tcpqe 32 82 0 82 4 4 0 1 0 8 0
tcpcb 808 2671 0 2659 32 24 8 9 0 8 6
arp 88 26 0 8 1 0 1 1 0 8 0
ipq 40 3 0 2 1 0 1 1 0 8 0
ipqe 40 10 0 9 1 0 1 1 0 8 0
inpcb 336 3751 0 3736 36 29 7 14 0 8 5
nd6 104 38 0 13 1 0 1 1 0 8 0
kcovpl 48 12 0 4 1 0 1 1 0 8 0
ppxss 1160 8 0 8 2 2 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 639 0 178 29 0 29 29 0 8 0
art_table 32 640 0 178 4 0 4 4 0 8 0
art_node 16 156 0 55 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 89 0 79 1 0 1 1 0 8 0
shmpl 112 152 0 24 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dirhash: pool(0xffffffff82d4a2c0:dirhash): free list modified: page 0xffff800021683000; item ordinal 0; addr 0xffff800021684000 (p 0xfffffd806e7be000); offset 0x0=0x0
pool(dirhash): free list modified: page 0xffff800021683000; item ordinal 0; addr 0xffff800021684000 (p 0xfffffd806e7be000); offset 0x0=0x0
dirhash: pool(0xffffffff82d4a2c0:dirhash): page inconsistency: page 0xffff800021683000; item ordinal 1; addr 0xb9fa2fbbf796aae3
dino2pl 256 5411 0 3959 91 0 91 91 0 8 0
ffsino 240 5411 0 3959 86 0 86 86 0 8 0
nchpl 144 9826 0 9331 63 41 22 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 33917 0 33916 5 4 1 3 0 8 0
namei: pool(0xffffffff82c29088:namei): free list modified: page 0xffff800021653000; item ordinal 0; addr 0xffff800021654000 (p 0xfffffd8071156000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff800021653000; item ordinal 0; addr 0xffff800021654000 (p 0xfffffd8071156000); offset 0x0=0x0
namei: pool(0xffffffff82c29088:namei): page inconsistency: page 0xffff800021653000; item ordinal 1; addr 0xaadaf744c8582130
vmpool 664 18 0 18 3 3 0 1 0 8 0
kstatmem 264 78 0 54 2 0 2 2 0 8 0
scxspl 216 27944 0 27941 12 11 1 8 1 8 0
plimitpl 152 463 0 448 1 0 1 1 0 8 0
sigapl 424 3233 0 3170 8 0 8 8 0 8 0
futexpl 64 27954 0 27953 1 0 1 1 0 8 0
knotepl 120 27254 0 27174 4 0 4 4 0 8 0
kqueuepl 184 615 0 607 7 6 1 4 0 8 0
pipepl 288 558 0 530 13 10 3 7 0 8 0
fdescpl 432 3195 0 3170 4 0 4 4 0 8 0
filepl 120 21718 0 21483 38 23 15 18 0 8 7
lockfpl 104 1791 0 1789 5 4 1 3 0 8 0
lockfspl 48 795 0 793 2 1 1 2 0 8 0
sessionpl 144 28 0 12 1 0 1 1 0 8 0
pgrppl 48 73 0 57 1 0 1 1 0 8 0
ucredpl 104 3259 0 3248 1 0 1 1 0 8 0
zombiepl 144 3171 0 3170 1 0 1 1 0 8 0
processpl 1008 3233 0 3170 10 1 9 9 0 8 0
processpl: pool(0xffffffff82d4cf58:processpl): page inconsistency: page 0x0; at page head addr 0xffff8000216f5f90 (p 0xffff8000216f4000)
processpl: pool(0xffffffff82d4cf58:processpl): page inconsistency: page 0x0; at page head addr 0xffff800021709f90 (p 0xffff800021708000)
procpl 680 7459 0 7379 9 1 8 9 0 8 0
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff800021695000; item ordinal 0; addr 0xffff800021696d50 (p 0xfffffd806d7f8000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff800021695000; item ordinal 0; addr 0xffff800021696d50 (p 0xfffffd806d7f8000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff800021695000; item ordinal 1; addr 0xc72e076939194159
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216ff000; item ordinal 0; addr 0xffff8000217007e8 (p 0xfffffd8064a72000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216ff000; item ordinal 0; addr 0xffff8000217007e8 (p 0xfffffd8064a72000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216ff000; item ordinal 1; addr 0xdb9d936325230a8c
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff800021633000; item ordinal 0; addr 0xffff800021633558 (p 0xfffffd807f7e4000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff800021633000; item ordinal 0; addr 0xffff800021633558 (p 0xfffffd807f7e4000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff800021633000; item ordinal 1; addr 0xef89080761a0228a
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216d3000; item ordinal 0; addr 0xffff8000216d3560 (p 0xfffffd8067c2c000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216d3000; item ordinal 0; addr 0xffff8000216d3560 (p 0xfffffd8067c2c000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216d3000; item ordinal 1; addr 0x32394a3298cbb75
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216d5000; item ordinal 0; addr 0xffff8000216d5570 (p 0xfffffd806a22e000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216d5000; item ordinal 0; addr 0xffff8000216d5570 (p 0xfffffd806a22e000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216d5000; item ordinal 1; addr 0xf4103b06bc65a1ea
procpl: pool(0xffffffff82d4cdb0:procpl): free list modified: page 0xffff8000216a9000; item ordinal 0; addr 0xffff8000216a9008 (p 0xfffffd8064a72000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff8000216a9000; item ordinal 0; addr 0xffff8000216a9008 (p 0xfffffd8064a72000); offset 0x0=0x0
procpl: pool(0xffffffff82d4cdb0:procpl): page inconsistency: page 0xffff8000216a9000; item ordinal 1; addr 0x5966d8f297f7e395
sosppl 168 43 0 40 3 2 1 1 0 8 0
sockpl 456 6366 0 6335 126 93 33 33 0 8 28
mcl64k 65536 117 0 117 4 3 1 1 0 8 1
mcl16k 16384 59 0 59 6 5 1 1 0 8 1
mcl12k 12288 94 0 94 3 2 1 1 0 8 1
mcl9k 9216 54 0 54 7 6 1 1 0 8 1
mcl8k 8192 259 0 258 3 2 1 1 0 8 0
mcl4k 4096 306 0 306 2 1 1 1 0 8 1
mcl2k2 2112 28 0 28 4 3 1 1 0 8 1
mcl2k 2048 73350 0 73307 32 25 7 27 0 8 0
mtagpl 96 878 0 394 18 1 17 17 0 8 2
mbufpl 256 136678 0 136088 61 10 51 51 0 8 7
bufpl 288 8683 0 2284 458 0 458 458 0 8 0
anonpl 24 440580 0 429152 152 56 96 107 0 188 8
amapchunkpl 152 92331 0 91562 46 10 36 38 0 158 2
amappl16 200 10637 0 10225 56 33 23 35 0 8 1
amappl15 192 14 0 14 3 3 0 1 0 8 0
amappl14 184 165 0 153 2 1 1 2 0 8 0
amappl13 176 16 0 14 1 0 1 1 0 8 0
amappl12 168 3917 0 3891 2 0 2 2 0 8 0
amappl11 160 56 0 46 1 0 1 1 0 8 0
amappl10 152 30 0 21 1 0 1 1 0 8 0
amappl9 144 152 0 151 1 0 1 1 0 8 0
amappl8 136 295 0 216 3 0 3 3 0 8 0
amappl7 128 78 0 67 1 0 1 1 0 8 0
amappl6 120 277 0 257 2 1 1 2 0 8 0
amappl5 112 254 0 246 1 0 1 1 0 8 0
amappl4 104 609 0 570 3 1 2 3 0 8 0
amappl3 96 19006 0 18937 5 2 3 3 0 8 0
amappl2 88 3539 0 3479 3 1 2 3 0 8 0
amappl1 80 20070 0 19576 22 10 12 22 0 8 0
amappl 88 28438 0 28229 7 1 6 6 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 154 0 24 3 0 3 3 0 8 0
uaddrrnd 24 3213 0 3188 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 3213 0 3188 1 0 1 1 0 8 0
vmmpekpl 168 26477 0 26419 3 0 3 3 0 8 0
vmmpepl 168 206369 0 204268 174 61 113 117 0 357 13
vmsppl 368 3212 0 3188 3 0 3 3 0 8 0
rwobjpl 24 61497 0 54033 48 1 47 47 0 8 0
pdppl 4096 6433 0 6376 195 130 65 69 0 8 8
pvpl 32 1049329 0 1032720 459 281 178 360 0 265 17
pmappl 216 3212 0 3188 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1072 0 246 24 0 24 24 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
schedclock(ffff8000216a9800) at schedclock+0xa6 sys/kern/sched_bsd.c:569
clockintr_statclock(ffffffff82bd2ab8,ffff80002b423c90) at clockintr_statclock+0x118 sys/kern/kern_clockintr.c:518
clockintr_dispatch(ffff80002b423c90) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:266
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
__sanitizer_cov_trace_const_cmp4(10,ffff80002b423d40) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3363 [inline]
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 sys/arch/amd64/amd64/pmap.c:519
buf_map(fffffd80715ab020) at buf_map+0x22d sys/kern/vfs_biomem.c:120
buf_get(0,0,8000000) at buf_get+0x763 sys/kern/vfs_bio.c:1189
geteblk(8000000) at geteblk+0x3c sys/kern/vfs_bio.c:1071
readdisklabel(2902,ffffffff8228c160,ffff800000eaf200,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96
vndopen(2902,1,2000,ffff8000216a9800) at vndopen+0x17e sys/dev/vnd.c:204
spec_open(ffff80002b424178) at spec_open+0x3e3 sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806ee88de0,1,fffffd807f7d7820,ffff8000216a9800) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138
vn_open(ffff80002b4243c8,1,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177
doopenat(ffff8000216a9800,ffffff9c,20000200,0,0,ffff80002b4245a0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126
syscall(ffff80002b424620) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd8e4de92040, count: -18
ddb> machine ddbcpu 1
No such command
ddb> trace
schedclock(ffff8000216a9800) at schedclock+0xa6 sys/kern/sched_bsd.c:569
clockintr_statclock(ffffffff82bd2ab8,ffff80002b423c90) at clockintr_statclock+0x118 sys/kern/kern_clockintr.c:518
clockintr_dispatch(ffff80002b423c90) at clockintr_dispatch+0x255 sys/kern/kern_clockintr.c:266
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
__sanitizer_cov_trace_const_cmp4(10,ffff80002b423d40) at __sanitizer_cov_trace_const_cmp4+0x13 sys/dev/kcov.c:234
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3363 [inline]
pmap_kenter_pa(ffff800022083000,55a30000,3) at pmap_kenter_pa+0x159 sys/arch/amd64/amd64/pmap.c:519
buf_map(fffffd80715ab020) at buf_map+0x22d sys/kern/vfs_biomem.c:120
buf_get(0,0,8000000) at buf_get+0x763 sys/kern/vfs_bio.c:1189
geteblk(8000000) at geteblk+0x3c sys/kern/vfs_bio.c:1071
readdisklabel(2902,ffffffff8228c160,ffff800000eaf200,0) at readdisklabel+0x149 sys/arch/amd64/amd64/disksubr.c:96
vndopen(2902,1,2000,ffff8000216a9800) at vndopen+0x17e sys/dev/vnd.c:204
spec_open(ffff80002b424178) at spec_open+0x3e3 sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806ee88de0,1,fffffd807f7d7820,ffff8000216a9800) at VOP_OPEN+0x70 sys/kern/vfs_vops.c:138
vn_open(ffff80002b4243c8,1,0) at vn_open+0x452 sys/kern/vfs_vnops.c:177
doopenat(ffff8000216a9800,ffffff9c,20000200,0,0,ffff80002b4245a0) at doopenat+0x26e sys/kern/vfs_syscalls.c:1126
syscall(ffff80002b424620) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd8e4de92040, count: -18
---
This report 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.
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If the bug is already fixed, let syzbot know by replying with:
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If you want to overwrite bug's subsystems, reply with:
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(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
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If you want to undo deduplication, reply with:
#syz undup
syzbot
Feb 26, 2024, 11:47:17 PMFeb 26
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 53ff252d078f Also download SPLs via rsync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=10309b8c180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/495accfa527c/disk-53ff252d.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/78a106516539/bsd-53ff252d.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3831fcb29c04/kernel-53ff252d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c0a2f5...@syzkaller.appspotmail.com
statclock(ffffffff82cbcbd0,ffff80002a81d370,0) at statclock+0x1dd sys/kern/kern_clock.c:323
clockintr_dispatch(ffff80002a81d370) at clockintr_dispatch+0x24c sys/kern/kern_clockintr.c:214
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3373 [inline]
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 sys/arch/amd64/amd64/pmap.c:519
end trace frame: 0x0, count: -6
rbx 0x24
rdx 0x45e40a95
rcx 0x23d9 __ALIGN_SIZE+0x13d9
r12 0x1
r13 0x1
r14 0xffff80002a6ddab0
r15 0xc
rip 0xffffffff81d6d5b6 schedclock+0xa6
pcb 15 10K 10K 166960K 15 0
rtable 234 6K 6K 166960K 350 0
pf 29 8K 8K 166960K 29 0
ifaddr 43 11K 11K 166960K 45 0
ifgroup 50 2K 2K 166960K 50 0
counters 30 17K 17K 166960K 30 0
ioctlops 0 0K 2K 166960K 29 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1184 74K 74K 166960K 1222 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 1K 166960K 2 0
VM map 2 1K 1K 166960K 2 0
sem 2 0K 0K 166960K 2 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 17 61K 73K 166960K 154 0
proc 55 58K 83K 166960K 470 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
in_multi 99 7K 7K 166960K 99 0
ether_multi 1 0K 0K 166960K 1 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 25 122K 122K 166960K 25 0
exec 0 0K 1K 166960K 398 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 228 73K 75K 166960K 3464 0
UVM aobj 3 2K 2K 166960K 3 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
NDP 15 0K 2K 166960K 27 0
temp 1 6748K 6828K 166960K 3995 0
kqueue 12 18K 18K 166960K 25 0
SYN cache 2 16K 16K 166960K 2 0
rtentry 112 111 0 1 4 0 4 4 0 8 0
unpcb 144 33 0 20 1 0 1 1 0 8 0
syncache 336 5 0 5 1 0 1 1 0 8 1
tcpqe 32 66 0 66 1 0 1 1 0 8 1
tcpcb 808 8 0 5 1 0 1 1 0 8 0
arp 88 18 0 0 1 0 1 1 0 8 0
inpcb 360 58 0 52 1 0 1 1 0 8 0
nd6 104 24 0 0 1 0 1 1 0 8 0
art_table 32 454 0 0 4 0 4 4 0 8 0
art_node 16 110 0 10 1 0 1 1 0 8 0
pool(dirhash): free list modified: page 0xffff80002a616000; item ordinal 0; addr 0xffff80002a617800 (p 0xfffffd80700b8000); offset 0x0=0x0
dirhash: pool(0xffffffff82e47b28:dirhash): page inconsistency: page 0xffff80002a616000; item ordinal 1; addr 0xdf548e803d558902
dino2pl 256 1526 0 82 91 0 91 91 0 8 0
ffsino 240 1526 0 82 86 0 86 86 0 8 0
nchpl 144 1835 0 148 64 0 64 64 0 8 0
uvmvnodes 80 1570 0 0 33 0 33 33 0 8 0
vnodes 216 1570 0 0 88 0 88 88 0 8 0
namei 1024 6377 0 6377 3 0 3 3 0 8 3
namei: pool(0xffffffff82daa728:namei): free list modified: page 0xffff80002a66c000; item ordinal 0; addr 0xffff80002a66c800 (p 0xfffffd806d266000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff80002a66c000; item ordinal 0; addr 0xffff80002a66c800 (p 0xfffffd806d266000); offset 0x0=0x0
namei: pool(0xffffffff82daa728:namei): page inconsistency: page 0xffff80002a66c000; item ordinal 1; addr 0x3e4931dba0bbd001
namei: pool(0xffffffff82daa728:namei): free list modified: page 0xffff80002a5e6000; item ordinal 0; addr 0xffff80002a5e7400 (p 0xfffffd807f7e4000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff80002a5e6000; item ordinal 0; addr 0xffff80002a5e7400 (p 0xfffffd807f7e4000); offset 0x0=0x0
namei: pool(0xffffffff82daa728:namei): page inconsistency: page 0xffff80002a5e6000; item ordinal 1; addr 0x93bd8c54d2d5107e
namei: pool(0xffffffff82daa728:namei): free list modified: page 0xffff80002a6c6000; item ordinal 0; addr 0xffff80002a6c7000 (p 0xfffffd806d266000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff80002a6c6000; item ordinal 0; addr 0xffff80002a6c7000 (p 0xfffffd806d266000); offset 0x0=0x0
namei: pool(0xffffffff82daa728:namei): page inconsistency: page 0xffff80002a6c6000; item ordinal 1; addr 0x1d1312161d1aba91
kstatmem 264 22 0 0 2 0 2 2 0 8 0
scxspl 216 7980 0 7980 3 0 3 3 1 8 3
plimitpl 152 34 0 19 1 0 1 1 0 8 0
sigapl 424 453 0 409 6 0 6 6 0 8 1
futexpl 64 442 0 438 1 0 1 1 0 8 0
knotepl 120 3667 0 3589 4 0 4 4 0 8 0
kqueuepl 184 21 0 13 1 0 1 1 0 8 0
pipepl 288 139 0 111 3 0 3 3 0 8 0
fdescpl 432 437 0 409 4 0 4 4 0 8 0
filepl 120 1748 0 1612 5 0 5 5 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 25 0 9 1 0 1 1 0 8 0
pgrppl 48 25 0 9 1 0 1 1 0 8 0
ucredpl 104 67 0 56 1 0 1 1 0 8 0
zombiepl 144 409 0 409 1 0 1 1 0 8 1
processpl 1072 453 0 409 4 0 4 4 0 8 1
processpl: pool(0xffffffff82d710b0:processpl): page inconsistency: page 0x0; at page head addr 0xffff80002a7b7f90 (p 0xffff80002a7b4000)
procpl 680 506 0 444 7 0 7 7 0 8 1
procpl: pool(0xffffffff82d70f08:procpl): free list modified: page 0xffff80002a6be000; item ordinal 0; addr 0xffff80002a6bfd40 (p 0xfffffd806b954000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff80002a6be000; item ordinal 0; addr 0xffff80002a6bfd40 (p 0xfffffd806b954000); offset 0x0=0x0
procpl: pool(0xffffffff82d70f08:procpl): page inconsistency: page 0xffff80002a6be000; item ordinal 1; addr 0x6b621a66bbfae649
procpl: pool(0xffffffff82d70f08:procpl): free list modified: page 0xffff80002a668000; item ordinal 0; addr 0xffff80002a6687f8 (p 0xfffffd8069902000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff80002a668000; item ordinal 0; addr 0xffff80002a6687f8 (p 0xfffffd8069902000); offset 0x0=0x0
procpl: pool(0xffffffff82d70f08:procpl): page inconsistency: page 0xffff80002a668000; item ordinal 1; addr 0x98bb0eb423c71339
sockpl 488 127 0 105 4 0 4 4 0 8 1
mcl8k 8192 4 0 4 1 0 1 1 0 8 1
mcl4k 4096 10 0 10 1 0 1 1 0 8 1
mcl2k 2048 11783 0 11752 29 16 13 29 0 8 8
mtagpl 96 4 0 4 1 0 1 1 0 8 1
mbufpl 256 19275 0 19150 15 3 12 15 0 8 4
bufpl 280 5315 0 139 370 0 370 370 0 8 0
anonpl 24 226644 0 222026 56 0 56 56 0 188 23
amapchunkpl 152 12472 0 11934 27 0 27 27 0 158 2
amappl16 200 6461 0 6359 10 0 10 10 0 8 1
amappl15 192 23 0 22 1 0 1 1 0 8 0
amappl14 184 159 0 148 2 0 2 2 0 8 1
amappl13 176 11 0 10 1 0 1 1 0 8 0
amappl12 168 1068 0 1041 2 0 2 2 0 8 0
amappl11 160 59 0 48 1 0 1 1 0 8 0
amappl10 152 43 0 34 1 0 1 1 0 8 0
amappl9 144 125 0 125 1 0 1 1 0 8 1
amappl8 136 138 0 112 2 0 2 2 0 8 1
amappl7 128 176 0 160 2 0 2 2 0 8 0
amappl6 120 254 0 248 1 0 1 1 0 8 0
amappl5 112 146 0 138 1 0 1 1 0 8 0
amappl4 104 437 0 415 2 0 2 2 0 8 1
amappl3 96 2865 0 2794 3 0 3 3 0 8 1
amappl2 88 893 0 825 3 0 3 3 0 8 0
amappl1 80 10591 0 10090 22 2 20 22 0 8 8
amappl 88 2984 0 2825 5 0 5 5 0 92 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
uaddrrnd 24 437 0 409 1 0 1 1 0 8 0
vmmpekpl 168 9892 0 9861 2 0 2 2 0 8 0
vmmpepl 168 49566 0 47905 112 0 112 112 0 357 38
vmsppl 352 436 0 409 3 0 3 3 0 8 0
rwobjpl 24 23042 0 20494 20 0 20 20 0 8 1
pdppl 4096 880 0 818 82 14 68 68 0 8 6
pvpl 32 437998 0 428588 363 15 348 363 0 265 265
pmappl 216 436 0 409 2 0 2 2 0 8 0
statclock(ffffffff82cbcbd0,ffff80002a81d370,0) at statclock+0x1dd sys/kern/kern_clock.c:323
clockintr_dispatch(ffff80002a81d370) at clockintr_dispatch+0x24c sys/kern/kern_clockintr.c:214
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3373 [inline]
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 sys/arch/amd64/amd64/pmap.c:519
end trace frame: 0x0, count: -6
statclock(ffffffff82cbcbd0,ffff80002a81d370,0) at statclock+0x1dd sys/kern/kern_clock.c:323
clockintr_dispatch(ffff80002a81d370) at clockintr_dispatch+0x24c sys/kern/kern_clockintr.c:214
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3373 [inline]
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 sys/arch/amd64/amd64/pmap.c:519
end trace frame: 0x0, count: -6
ddb>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: 53ff252d078f Also download SPLs via rsync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=10309b8c180000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=c0a2f5b539e2150f7cfa
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=178f934a180000
dashboard link: https://syzkaller.appspot.com/bug?extid=c0a2f5b539e2150f7cfa
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/495accfa527c/disk-53ff252d.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/78a106516539/bsd-53ff252d.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3831fcb29c04/kernel-53ff252d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c0a2f5...@syzkaller.appspotmail.com
kernel: page fault trap, code=0
Stopped at schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
the kernel did not panic
ddb> trace
schedclock(ffff80002a6ddab0) at schedclock+0xa6 sys/kern/sched_bsd.c:569
Stopped at schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
the kernel did not panic
ddb> trace
statclock(ffffffff82cbcbd0,ffff80002a81d370,0) at statclock+0x1dd sys/kern/kern_clock.c:323
clockintr_dispatch(ffff80002a81d370) at clockintr_dispatch+0x24c sys/kern/kern_clockintr.c:214
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 invpcid machine/cpufunc.h:175 [inline]
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3373 [inline]
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 sys/arch/amd64/amd64/pmap.c:519
end trace frame: 0x0, count: -6
ddb> show registers
rdi 0x24
rsi 0x1
rbp 0xffff80002a81d260
rdi 0x24
rsi 0x1
rbx 0x24
rdx 0x45e40a95
rcx 0x23d9 __ALIGN_SIZE+0x13d9
rax 0
r8 0
r9 0
r10 0
r11 0xeda12b2e1f3681bd
r8 0
r9 0
r10 0
r12 0x1
r13 0x1
r14 0xffff80002a6ddab0
r15 0xc
rip 0xffffffff81d6d5b6 schedclock+0xa6
cs 0x8
rflags 0x10297 __ALIGN_SIZE+0xf297
rsp 0xffff80002a81d220
rflags 0x10297 __ALIGN_SIZE+0xf297
ss 0x10
schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb> show proc
schedclock+0xa6: movzbl 0x344(%rax),%eax
ddb> show proc
kernel: page fault trap, code=0
Faulted in DDB; continuing...
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
0 0 -1 0 3 0x10200 scheduler swapper
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10163 6409K 6413K 166960K 11242 0
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
pcb 15 10K 10K 166960K 15 0
rtable 234 6K 6K 166960K 350 0
pf 29 8K 8K 166960K 29 0
ifaddr 43 11K 11K 166960K 45 0
ifgroup 50 2K 2K 166960K 50 0
counters 30 17K 17K 166960K 30 0
ioctlops 0 0K 2K 166960K 29 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1184 74K 74K 166960K 1222 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 1K 166960K 2 0
VM map 2 1K 1K 166960K 2 0
sem 2 0K 0K 166960K 2 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 17 61K 73K 166960K 154 0
proc 55 58K 83K 166960K 470 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
in_multi 99 7K 7K 166960K 99 0
ether_multi 1 0K 0K 166960K 1 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 25 122K 122K 166960K 25 0
exec 0 0K 1K 166960K 398 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 228 73K 75K 166960K 3464 0
UVM aobj 3 2K 2K 166960K 3 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
NDP 15 0K 2K 166960K 27 0
temp 1 6748K 6828K 166960K 3995 0
kqueue 12 18K 18K 166960K 25 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 36 0 33 1 0 1 1 0 8 0
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtentry 112 111 0 1 4 0 4 4 0 8 0
unpcb 144 33 0 20 1 0 1 1 0 8 0
syncache 336 5 0 5 1 0 1 1 0 8 1
tcpqe 32 66 0 66 1 0 1 1 0 8 1
tcpcb 808 8 0 5 1 0 1 1 0 8 0
arp 88 18 0 0 1 0 1 1 0 8 0
inpcb 360 58 0 52 1 0 1 1 0 8 0
nd6 104 24 0 0 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 453 0 0 29 0 29 29 0 8 0
art_table 32 454 0 0 4 0 4 4 0 8 0
art_node 16 110 0 10 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dirhash: pool(0xffffffff82e47b28:dirhash): free list modified: page 0xffff80002a616000; item ordinal 0; addr 0xffff80002a617800 (p 0xfffffd80700b8000); offset 0x0=0x0
pool(dirhash): free list modified: page 0xffff80002a616000; item ordinal 0; addr 0xffff80002a617800 (p 0xfffffd80700b8000); offset 0x0=0x0
dirhash: pool(0xffffffff82e47b28:dirhash): page inconsistency: page 0xffff80002a616000; item ordinal 1; addr 0xdf548e803d558902
dino2pl 256 1526 0 82 91 0 91 91 0 8 0
ffsino 240 1526 0 82 86 0 86 86 0 8 0
nchpl 144 1835 0 148 64 0 64 64 0 8 0
uvmvnodes 80 1570 0 0 33 0 33 33 0 8 0
vnodes 216 1570 0 0 88 0 88 88 0 8 0
namei 1024 6377 0 6377 3 0 3 3 0 8 3
namei: pool(0xffffffff82daa728:namei): free list modified: page 0xffff80002a66c000; item ordinal 0; addr 0xffff80002a66c800 (p 0xfffffd806d266000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff80002a66c000; item ordinal 0; addr 0xffff80002a66c800 (p 0xfffffd806d266000); offset 0x0=0x0
namei: pool(0xffffffff82daa728:namei): page inconsistency: page 0xffff80002a66c000; item ordinal 1; addr 0x3e4931dba0bbd001
namei: pool(0xffffffff82daa728:namei): free list modified: page 0xffff80002a5e6000; item ordinal 0; addr 0xffff80002a5e7400 (p 0xfffffd807f7e4000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff80002a5e6000; item ordinal 0; addr 0xffff80002a5e7400 (p 0xfffffd807f7e4000); offset 0x0=0x0
namei: pool(0xffffffff82daa728:namei): page inconsistency: page 0xffff80002a5e6000; item ordinal 1; addr 0x93bd8c54d2d5107e
namei: pool(0xffffffff82daa728:namei): free list modified: page 0xffff80002a6c6000; item ordinal 0; addr 0xffff80002a6c7000 (p 0xfffffd806d266000); offset 0x0=0x0
pool(namei): free list modified: page 0xffff80002a6c6000; item ordinal 0; addr 0xffff80002a6c7000 (p 0xfffffd806d266000); offset 0x0=0x0
namei: pool(0xffffffff82daa728:namei): page inconsistency: page 0xffff80002a6c6000; item ordinal 1; addr 0x1d1312161d1aba91
kstatmem 264 22 0 0 2 0 2 2 0 8 0
scxspl 216 7980 0 7980 3 0 3 3 1 8 3
plimitpl 152 34 0 19 1 0 1 1 0 8 0
sigapl 424 453 0 409 6 0 6 6 0 8 1
futexpl 64 442 0 438 1 0 1 1 0 8 0
knotepl 120 3667 0 3589 4 0 4 4 0 8 0
kqueuepl 184 21 0 13 1 0 1 1 0 8 0
pipepl 288 139 0 111 3 0 3 3 0 8 0
fdescpl 432 437 0 409 4 0 4 4 0 8 0
filepl 120 1748 0 1612 5 0 5 5 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 25 0 9 1 0 1 1 0 8 0
pgrppl 48 25 0 9 1 0 1 1 0 8 0
ucredpl 104 67 0 56 1 0 1 1 0 8 0
zombiepl 144 409 0 409 1 0 1 1 0 8 1
processpl 1072 453 0 409 4 0 4 4 0 8 1
processpl: pool(0xffffffff82d710b0:processpl): page inconsistency: page 0x0; at page head addr 0xffff80002a7b7f90 (p 0xffff80002a7b4000)
procpl 680 506 0 444 7 0 7 7 0 8 1
procpl: pool(0xffffffff82d70f08:procpl): free list modified: page 0xffff80002a6be000; item ordinal 0; addr 0xffff80002a6bfd40 (p 0xfffffd806b954000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff80002a6be000; item ordinal 0; addr 0xffff80002a6bfd40 (p 0xfffffd806b954000); offset 0x0=0x0
procpl: pool(0xffffffff82d70f08:procpl): page inconsistency: page 0xffff80002a6be000; item ordinal 1; addr 0x6b621a66bbfae649
procpl: pool(0xffffffff82d70f08:procpl): free list modified: page 0xffff80002a668000; item ordinal 0; addr 0xffff80002a6687f8 (p 0xfffffd8069902000); offset 0x0=0x0
pool(procpl): free list modified: page 0xffff80002a668000; item ordinal 0; addr 0xffff80002a6687f8 (p 0xfffffd8069902000); offset 0x0=0x0
procpl: pool(0xffffffff82d70f08:procpl): page inconsistency: page 0xffff80002a668000; item ordinal 1; addr 0x98bb0eb423c71339
sockpl 488 127 0 105 4 0 4 4 0 8 1
mcl8k 8192 4 0 4 1 0 1 1 0 8 1
mcl4k 4096 10 0 10 1 0 1 1 0 8 1
mcl2k 2048 11783 0 11752 29 16 13 29 0 8 8
mtagpl 96 4 0 4 1 0 1 1 0 8 1
mbufpl 256 19275 0 19150 15 3 12 15 0 8 4
bufpl 280 5315 0 139 370 0 370 370 0 8 0
anonpl 24 226644 0 222026 56 0 56 56 0 188 23
amapchunkpl 152 12472 0 11934 27 0 27 27 0 158 2
amappl16 200 6461 0 6359 10 0 10 10 0 8 1
amappl15 192 23 0 22 1 0 1 1 0 8 0
amappl14 184 159 0 148 2 0 2 2 0 8 1
amappl13 176 11 0 10 1 0 1 1 0 8 0
amappl12 168 1068 0 1041 2 0 2 2 0 8 0
amappl11 160 59 0 48 1 0 1 1 0 8 0
amappl10 152 43 0 34 1 0 1 1 0 8 0
amappl9 144 125 0 125 1 0 1 1 0 8 1
amappl8 136 138 0 112 2 0 2 2 0 8 1
amappl7 128 176 0 160 2 0 2 2 0 8 0
amappl6 120 254 0 248 1 0 1 1 0 8 0
amappl5 112 146 0 138 1 0 1 1 0 8 0
amappl4 104 437 0 415 2 0 2 2 0 8 1
amappl3 96 2865 0 2794 3 0 3 3 0 8 1
amappl2 88 893 0 825 3 0 3 3 0 8 0
amappl1 80 10591 0 10090 22 2 20 22 0 8 8
amappl 88 2984 0 2825 5 0 5 5 0 92 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 437 0 409 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 437 0 409 1 0 1 1 0 8 0
vmmpekpl 168 9892 0 9861 2 0 2 2 0 8 0
vmmpepl 168 49566 0 47905 112 0 112 112 0 357 38
vmsppl 352 436 0 409 3 0 3 3 0 8 0
rwobjpl 24 23042 0 20494 20 0 20 20 0 8 1
pdppl 4096 880 0 818 82 14 68 68 0 8 6
pvpl 32 437998 0 428588 363 15 348 363 0 265 265
pmappl 216 436 0 409 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 356 0 33 10 0 10 10 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
schedclock(ffff80002a6ddab0) at schedclock+0xa6 sys/kern/sched_bsd.c:569
No such command
ddb> trace
statclock(ffffffff82cbcbd0,ffff80002a81d370,0) at statclock+0x1dd sys/kern/kern_clock.c:323
clockintr_dispatch(ffff80002a81d370) at clockintr_dispatch+0x24c sys/kern/kern_clockintr.c:214
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 invpcid machine/cpufunc.h:175 [inline]
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3373 [inline]
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 sys/arch/amd64/amd64/pmap.c:519
end trace frame: 0x0, count: -6
ddb> machine ddbcpu 1
No such command
ddb> trace
schedclock(ffff80002a6ddab0) at schedclock+0xa6 sys/kern/sched_bsd.c:569
No such command
ddb> trace
statclock(ffffffff82cbcbd0,ffff80002a81d370,0) at statclock+0x1dd sys/kern/kern_clock.c:323
clockintr_dispatch(ffff80002a81d370) at clockintr_dispatch+0x24c sys/kern/kern_clockintr.c:214
lapic_clockintr(0,0) at lapic_clockintr+0x3a sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 invpcid machine/cpufunc.h:175 [inline]
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 pmap_tlb_shootpage sys/arch/amd64/amd64/pmap.c:3373 [inline]
pmap_kenter_pa(0,0,0) at pmap_kenter_pa+0x192 sys/arch/amd64/amd64/pmap.c:519
end trace frame: 0x0, count: -6
ddb>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
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