*cpu0: uvm_fault(0xfffffd806c6f93e8, 0x98, 0, 1) -> e
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x73dd305a7fd0, count: -1
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80003239b0d0
rbx 0
rdx 0
rcx 0xffff80003c3ca7e8
rax 0x2a
r8 0xffff80003239b000
r9 0x96bfe33c001
r10 0xc9f44c647e4aa59b
r11 0x16cfdc3558861560
r12 0
r13 0
r14 0
r15 0
rip 0xffffffff82edc4c7 proc_trampoline+0xc7
cs 0x8
rflags 0x246
rsp 0xffff80003239b050
ss 0
proc_trampoline+0xc7: movl $0,%gs:0x688
ddb{1}> show proc
PROC (sshd-session) tid=122127 pid=56321 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=24, usrpri=51, slppri=24, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003c3cafb0,0xffff80003c3cb4f0
process=0xffff80002a38e698 user=0xffff800032396000, vmspace=0xfffffd806c6f95d0
estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
56916 249681 75375 0 2 0 syz-executor
56916 245713 75375 0 3 0x4000080 piperd syz-executor
*56321 122127 93301 0 7 0x2 sshd-session
16236 283109 67372 0 2 0 syz-executor
16236 50694 67372 0 3 0x4000080 fsleep syz-executor
18641 314844 74498 0 2 0 syz-executor
18641 306728 74498 0 3 0x4000080 fsleep syz-executor
1642 253868 29766 0 2 0 syz-executor
1642 127502 29766 0 7 0x4000000 syz-executor
80260 421876 21412 0 2 0 syz-executor
80260 100104 21412 0 2 0x4000000 syz-executor
55170 30552 79436 -1 3 0x90 nanoslp syz-executor
55170 168571 79436 -1 3 0x4000090 sbwait syz-executor
55170 499781 79436 -1 3 0x4000090 fsleep syz-executor
79027 50771 50112 0 3 0x82 nanoslp syz-executor
74498 514244 50112 0 2 0xc82 syz-executor
29766 414223 50112 0 3 0x82 nanoslp syz-executor
19736 482825 50112 0 3 0x82 nanoslp syz-executor
75375 38733 50112 0 3 0x82 nanoslp syz-executor
67372 181902 50112 0 2 0xc82 syz-executor
79436 381320 50112 0 3 0x82 nanoslp syz-executor
21412 386030 50112 0 2 0x2 syz-executor
50112 422821 9573 0 3 0x82 kqread syz-executor
9573 46661 66897 0 3 0x10008a sigsusp ksh
66897 78274 24626 0 3 0x98 kqread sshd-session
24626 127532 93301 0 3 0x92 kqread sshd-session
80306 149866 1 0 3 0x100083 ttyin getty
93301 228267 1 0 3 0x88 kqread sshd
66447 286217 94111 74 3 0x1100092 bpf pflogd
94111 1412 1 0 3 0x80 sbwait pflogd
71002 393822 85468 73 3 0x1100090 kqread syslogd
85468 480278 1 0 3 0x100082 sbwait syslogd
44216 377014 1 0 3 0x100080 kqread resolvd
42236 163629 5685 77 3 0x100092 kqread dhcpleased
44609 98995 5685 77 3 0x100092 kqread dhcpleased
5685 436366 1 0 3 0x80 kqread dhcpleased
15128 276233 0 0 3 0x14200 bored smr
2951 464971 0 0 2 0x14200 zerothread
60929 475430 0 0 3 0x14200 aiodoned aiodoned
3729 396150 0 0 3 0x14200 syncer update
8152 521040 0 0 3 0x14200 cleaner cleaner
72253 437040 0 0 3 0x14200 reaper reaper
12178 62104 0 0 3 0x14200 pgdaemon pagedaemon
85713 469963 0 0 3 0x14200 bored viomb
7342 229440 0 0 3 0x40014200 acpi0 acpi0
31723 357684 0 0 3 0x40014200 idle1
86962 86917 0 0 3 0x14200 bored softnet1
66982 155912 0 0 3 0x14200 bored softnet0
90769 304523 0 0 3 0x14200 bored systqmp
80387 521068 0 0 3 0x14200 bored systq
6689 438088 0 0 3 0x14200 tmoslp softclockmp
51253 86331 0 0 3 0x40014200 tmoslp softclock
58379 291238 0 0 3 0x40014200 idle0
1 11802 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839f6808)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 uvm_pageactivate+0x15a sys/uvm/uvm_page.c:1313
#3 uvm_fault_lower+0x82e sys/uvm/uvm_fault.c:1552
#4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
#5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#7 recall_trap+0x8
Process 56321 (sshd-session) thread 0xffff80003c3ca7e8 (122127)
exclusive rwlock amaplk r = 0 (0xfffffd806f0415f0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 uvm_fault_check+0x8a9 sys/uvm/uvm_fault.c:834
#3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#5 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#6 recall_trap+0x8
shared rwlock vmmaplk r = 0 (0xfffffd806c6f96d0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413
#2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880
#3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693
#4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#7 recall_trap+0x8
exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839f6808)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 uvm_pageactivate+0x15a sys/uvm/uvm_page.c:1313
#3 uvm_fault_lower+0x82e sys/uvm/uvm_fault.c:1552
#4 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
#5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#7 recall_trap+0x8
Process 1642 (syz-executor) thread 0xffff80003c3c9cb0 (127502)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a942c0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
#1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783
#2 Xsyscall+0x128
Process 80260 (syz-executor) thread 0xffff80003c3c94e8 (100104)
exclusive rrwlock inode r = 0 (0xfffffd807282fdd0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline]
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232
#6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732
#8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
#9 VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
#10 domknodat+0x469 sys/kern/vfs_syscalls.c:1659
#11 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#11 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#12 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806fba7308)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
#6 namei+0x7ca sys/kern/vfs_lookup.c:250
#7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1611
#8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11063 12150K 12150K 166960K 12188 0
pcb 18 12K 12K 166960K 28 0
rtable 240 7K 7K 166960K 356 0
pf 34 17K 21K 166960K 49 0
ifaddr 43 7K 7K 166960K 45 0
ifgroup 55 2K 2K 166960K 55 0
sysctl 1 1K 9K 166960K 5 0
counters 70 37K 37K 166960K 70 0
ioctlops 0 0K 4K 166960K 1494 0
iov 0 0K 12K 166960K 1 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1291 81K 82K 166960K 1388 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 4 0K 0K 166960K 4 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 89K 166960K 169 0
proc 71 115K 180K 166960K 553 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 15 0
in_multi 99 7K 7K 166960K 106 0
ether_multi 1 0K 0K 166960K 2 0
mrt 1 0K 0K 166960K 6 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 67 307K 307K 166960K 67 0
exec 0 0K 1K 166960K 381 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 246 176K 176K 166960K 3441 0
UVM aobj 3 2K 2K 166960K 3 0
pinsyscall 45 90K 106K 166960K 1311 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 2 0
NDP 12 0K 2K 166960K 28 0
temp 34 9074K 9138K 166960K 4215 0
kqueue 13 20K 24K 166960K 30 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 26 0 0 1 0 1 1 0 8 0
rtpcb 120 35 0 32 1 0 1 1 0 8 0
rtentry 176 112 0 1 6 0 6 6 0 8 0
unpcb 144 53 0 33 1 0 1 1 0 8 0
syncache 336 5 0 5 1 0 1 1 0 8 1
tcpcb 736 17 0 10 1 0 1 1 0 8 0
arp 136 18 0 0 1 0 1 1 0 8 0
inpcb 328 95 0 83 2 0 2 2 0 8 1
nd6 152 25 0 0 1 0 1 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
pffrag 232 3 0 0 1 0 1 1 0 482 0
pffrnode 88 3 0 0 1 0 1 1 0 8 0
pffrent 40 3 0 0 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
pfrktable 1344 1 0 1 1 0 1 1 0 8 1
pfanchor 1288 1 0 0 1 0 1 1 0 8 0
pfstitem 24 22 0 0 1 0 1 1 0 8 0
pfstkey 128 22 0 0 1 0 1 1 0 8 0
pfstate 448 22 0 0 3 0 3 3 0 8 0
pfrule 1360 22 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 454 0 0 29 0 29 29 0 8 0
art_table 40 455 0 0 5 0 5 5 0 8 0
art_node 32 112 0 11 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 2 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1628 0 159 92 0 92 92 0 8 0
ffsino 296 1628 0 159 114 0 114 114 0 8 0
nchpl 144 1859 0 160 64 0 64 64 0 8 0
vnodes 216 1727 0 0 96 0 96 96 0 8 0
namei 1024 5637 0 5636 2 0 2 2 0 8 1
percpumem 16 50 0 0 1 0 1 1 0 8 0
kstatmem 264 26 0 0 2 0 2 2 0 8 0
scxspl 216 6498 0 6498 4 2 2 3 1 8 2
plimitpl 152 30 0 13 1 0 1 1 0 8 0
sigapl 424 482 0 433 7 0 7 7 0 8 1
knotepl 120 61 0 0 2 0 2 2 0 8 0
kqueuepl 224 25 0 16 1 0 1 1 0 8 0
pipepl 344 124 0 96 3 0 3 3 0 8 0
fdescpl 528 466 0 433 3 0 3 3 0 8 0
filepl 160 1709 0 1480 10 0 10 10 0 8 0
lockfpl 104 15 0 12 1 0 1 1 0 8 0
lockfspl 48 9 0 6 1 0 1 1 0 8 0
sessionpl 144 23 0 13 1 0 1 1 0 8 0
pgrppl 48 31 0 13 1 0 1 1 0 8 0
ucredpl 104 132 0 118 1 0 1 1 0 8 0
zombiepl 144 435 0 433 1 0 1 1 0 8 0
processpl 1232 482 0 433 5 0 5 5 0 8 1
procpl 664 531 0 475 6 0 6 6 0 8 0
sockpl 752 183 0 148 4 0 4 4 0 8 0
mcl64k 65536 5 0 0 1 0 1 1 0 8 0
mcl16k 16384 4 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 127 0 0 16 0 16 16 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 26 0 0 4 0 4 4 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 185 0 0 12 0 12 12 0 8 0
bufpl 280 2343 0 106 160 0 160 160 0 8 0
anonpl 32 7348 0 0 60 0 60 60 0 246 0
amapchunkpl 152 9445 0 8942 22 0 22 22 0 158 2
amappl16 200 2103 0 2080 13 0 13 13 0 8 8
amappl15 192 3 0 3 1 1 0 1 0 8 0
amappl14 184 430 0 429 1 0 1 1 0 8 0
amappl13 176 120 0 107 1 0 1 1 0 8 0
amappl12 168 714 0 682 2 0 2 2 0 8 0
amappl11 160 6 0 6 1 1 0 1 0 8 0
amappl10 152 65 0 51 1 0 1 1 0 8 0
amappl9 144 291 0 291 1 1 0 1 0 8 0
amappl8 136 99 0 97 1 0 1 1 0 8 0
amappl7 128 143 0 129 1 0 1 1 0 8 0
amappl6 120 180 0 178 1 0 1 1 0 8 0
amappl5 112 103 0 91 1 0 1 1 0 8 0
amappl4 104 293 0 273 1 0 1 1 0 8 0
amappl3 96 1664 0 1546 4 0 4 4 0 8 0
amappl2 88 527 0 463 2 0 2 2 0 8 0
amappl1 80 9515 0 8845 15 0 15 15 0 8 1
amappl 88 2723 0 2556 5 0 5 5 0 92 0
uvmvnodes 80 100 0 0 3 0 3 3 0 8 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 9 0 9 2 1 1 1 0 8 1
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 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 466 0 433 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 466 0 433 1 0 1 1 0 8 0
vmmpekpl 168 5571 0 5539 2 0 2 2 0 8 0
vmmpepl 168 38869 0 36817 95 0 95 95 0 357 5
vmsppl 488 465 0 433 5 0 5 5 0 8 0
rwobjpl 80 14333 0 13234 26 0 26 26 0 8 1
pdppl 4096 939 0 866 97 22 75 85 0 8 2
pvpl 32 14165 0 0 117 2 115 116 0 265 0
pmappl 256 465 0 433 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 272 0 25 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff838c7ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682
acpitimer_delay(1) at acpitimer_delay+0x1d7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline]
acpitimer_delay(1) at acpitimer_delay+0x1d7 sys/dev/acpi/acpitimer.c:125
comcnputc(800,2d) at comcnputc+0x29b sys/dev/ic/com.c:1284
cnputc(2d) at cnputc+0x67 sys/dev/cons.c:218
db_putchar(2d) at db_putchar+0x36d sys/ddb/db_output.c:155
kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1
db_printf(ffffffff833f16e6) at db_printf+0x9b sys/kern/subr_prf.c:-1
fault(ffffffff834b4070) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161
kpageflttrap(ffff80003c3d6fb0,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296
kerntrap(ffff80003c3d6fb0) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
end trace frame: 0xffff80003c3d7160, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff838c7ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682
acpitimer_delay(1) at acpitimer_delay+0x1d7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline]
acpitimer_delay(1) at acpitimer_delay+0x1d7 sys/dev/acpi/acpitimer.c:125
comcnputc(800,2d) at comcnputc+0x29b sys/dev/ic/com.c:1284
cnputc(2d) at cnputc+0x67 sys/dev/cons.c:218
db_putchar(2d) at db_putchar+0x36d sys/ddb/db_output.c:155
kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1
db_printf(ffffffff833f16e6) at db_printf+0x9b sys/kern/subr_prf.c:-1
fault(ffffffff834b4070) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161
kpageflttrap(ffff80003c3d6fb0,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296
kerntrap(ffff80003c3d6fb0) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dovutimens(ffff80003c3c9cb0,fffffd806361a380,ffff80003c3d7190) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771
sys_futimes(ffff80003c3c9cb0,ffff80003c3d72e0,ffff80003c3d7230) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2813
syscall(ffff80003c3d72e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3d72e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xba5542ac120, count: -18
ddb{0}> machine ddbcpu 1
Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x73dd305a7fd0, count: 14
ddb{1}> trace
proc_trampoline() at proc_trampoline+0xc7
end of kernel
end trace frame: 0x73dd305a7fd0, count: -1