login: j|E1\:kb>7 A<!pkk8kXr>79*!pkk8kj>71*!pkk8k0N<M<!pckk0N<M<!pckkg>7B<!pckkN<M<!pckk|>7-!pckkO'*E<!pekhXt| &*p9*0!pbkpSt| &*p9*0!pbkpSt|hN<?< !pEjkЛkhN<?< !pEjkЛkN<p@<!p `k0kN<p@<!p `k0kxD<`!pIjkVt|xD<`!pIjkVt| 0B<!pBjkk 0B<!pBjkkpW'*7*&*!p5 [t|pW'*7*&*!p5 [t|\'*5*&*!p؃po`]t|\'*5*&*!p؃po`]t|4&*4*&*(!ppoFv4&*4*&*(!ppoFv%*8&*!pnv%*8&*!pnv,*X&*!pn`v,*X&*!pn`v(*&*!pnv(*&*!pnv8@&*&*H!pȅnPv8@&*&*H!pȅnPv:&*p'*(&*H!p`poJv:&*p'*(&*H!p`poJvh0(*ȸ&*!pnvh0(*ȸ&*!pnv@%&*0,*h&*!phnhCv@%&*0,*h&*!phnhCvh7&*p+*8)x!p0 vh7&*p+*8)x!puvm_fault(0xfffffd806b6a4028, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff82c1f038 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80002a39c6b0 gsbase 0xffff8000299ddff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff82c1f038 Starting stack trace... panic(ffffffff833e18b3) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80002a39c600) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff8000016d4000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,81,2000,ffff8000373e7788) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000373e7788) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a39c7b0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800e0537b0,81,fffffd80097fd2d8,ffff8000373e7788) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806cc60b68,ffff8000373e7788) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806cc60b68,ffff8000373e7788) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806cc60b68,ffff8000373e7788) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806cc60b68,ffff8000373e7788) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000373e7788) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000373e7788,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000373e7788,ffff80002a39cb20,ffff80002a39ca70) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a39cb20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a39cb20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ffe665bbf80, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON SYSCALL 91 392336392 EXIT 0 4 Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *258900 52892 0 0 0 1 syz-executor 468327 84214 0 0x2 0 0 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x70d9176293f0, count: 14 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806b6a4028, 0x0, 0, 1) -> e ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x70d9176293f0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a3a2030 rbx 0 rdx 0 rcx 0xffff80003c4eea98 rax 0x3a r8 0xffff80002a3a1f60 r9 0x1 r10 0xb429fde83ef247f4 r11 0x8cad5654dc53bb97 r12 0 r13 0 r14 0xffff80003c4eea98 r15 0 rip 0xffffffff819113ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a3a1fb0 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=258900 pid=52892 tcnt=4 stat=onproc flags process=0 proc=0 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2622a8,0xffff80003c4ee2e0 process=0xffff8000fffe79e8 user=0xffff80002a39d000, vmspace=0xfffffd806ba96b90 estcpu=34, cpticks=7, pctcpu=0.6, user=4, sys=1, intr=2 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 24188 303533 37893 0 2 0x1000000 syz-executor 24188 123504 37893 0 2 0x5000000 syz-executor 24188 132658 37893 0 2 0x5000000 syz-executor 79767 423020 1 0 3 0x82 nanoslp getty 76466 30287 12053 0 4 0x82000 syz-executor 76466 378559 12053 0 2 0x4082000 syz-executor 76466 93496 12053 0 3 0x4002000 suspend syz-executor *52892 258900 69672 0 7 0 syz-executor 52892 169680 69672 0 3 0x4000080 piperd syz-executor 52892 457899 69672 0 3 0x4000080 fsleep syz-executor 52892 375976 69672 0 3 0x4000080 fsleep syz-executor 46604 384602 59040 0 2 0 syz-executor 46604 471317 59040 0 3 0x4000080 ttyin syz-executor 46604 470367 59040 0 3 0x4000080 fsleep syz-executor 54485 38686 4133 0 3 0x3000 suspend syz-executor 54485 497476 4133 0 2 0x4081000 syz-executor 94637 461568 35056 0 2 0xc82 syz-executor 84214 468327 35056 0 7 0x2 syz-executor 49156 50053 35056 0 3 0x82 wait syz-executor 59040 354135 35056 0 2 0x2 syz-executor 8563 292919 0 0 3 0x14200 acct acct 69672 405957 35056 0 2 0x2 syz-executor 12053 366853 35056 0 2 0xc82 syz-executor 37893 213592 35056 0 2 0xc82 syz-executor 4133 521841 35056 0 2 0xc82 syz-executor 35056 486935 65549 0 3 0x82 kqread syz-executor 65549 88035 67419 0 3 0x10008a sigsusp ksh 67419 6293 16996 0 3 0x98 kqread sshd-session 16996 429315 88513 0 3 0x92 kqread sshd-session 88513 223709 1 0 3 0x88 kqread sshd 29687 275951 42159 74 3 0x1100092 bpf pflogd 42159 450853 1 0 3 0x80 sbwait pflogd 80137 206601 93964 73 3 0x1100090 kqread syslogd 93964 165125 1 0 3 0x100082 sbwait syslogd 24478 366001 1 0 3 0x100080 kqread resolvd 14050 442784 48665 77 3 0x100092 kqread dhcpleased 42192 245728 48665 77 3 0x100092 kqread dhcpleased 48665 130571 1 0 3 0x80 kqread dhcpleased 37826 110086 0 0 3 0x14200 bored smr 89723 407283 0 0 3 0x14200 pgzero zerothread 10026 444354 0 0 3 0x14200 aiodoned aiodoned 69741 153189 0 0 3 0x14200 syncer update 72472 133112 0 0 3 0x14200 cleaner cleaner 54103 399283 0 0 3 0x14200 reaper reaper 35389 488967 0 0 3 0x14200 pgdaemon pagedaemon 6282 506091 0 0 3 0x14200 bored viomb 94539 9761 0 0 3 0x40014200 acpi0 acpi0 60527 317298 0 0 3 0x40014200 idle1 29181 287523 0 0 3 0x14200 bored softnet1 18046 54502 0 0 2 0x14200 softnet0 29983 303080 0 0 2 0x14200 systqmp 22878 384768 0 0 3 0x14200 bored systq 62043 500672 0 0 3 0x14200 netlock softclockmp 9942 117843 0 0 3 0x40014200 tmoslp softclock 9407 335856 0 0 3 0x40014200 idle0 1 32633 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 76466 (syz-executor) thread 0xffff80003c4eed30 (378559) exclusive rrwlock inode r = 0 (0xfffffd80771cc118) #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:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 54485 (syz-executor) thread 0xffff8000373e6560 (497476) exclusive rrwlock inode r = 0 (0xfffffd807e9798b8) #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:570 #5 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 84214 (syz-executor) thread 0xffff80003c4ee568 (468327) exclusive rrwlock inode r = 0 (0xfffffd806e86f120) #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_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e830dd8) #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:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11109 12213K 12416K 166960K 13348 0 pcb 17 15K 17K 166960K 444 0 rtable 225 9K 9K 166960K 715 0 pf 34 17K 80K 166960K 204 0 ifaddr 39 7K 8K 166960K 162 0 ifgroup 55 2K 2K 166960K 249 0 sysctl 4 1K 9K 166960K 21 0 counters 70 37K 38K 166960K 278 0 ioctlops 0 0K 4K 166960K 1928 0 iov 0 0K 28K 166960K 156 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1399 88K 88K 166960K 2788 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 182 0 dirhash 12 2K 2K 166960K 48 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1889 0 sigio 0 0K 0K 166960K 25 0 proc 75 131K 163K 166960K 866 0 subproc 72 4K 4K 166960K 133 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 281 0 in_multi 90 6K 7K 166960K 256 0 ether_multi 1 0K 0K 166960K 21 0 mrt 1 0K 0K 166960K 24 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 979 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 256 159K 178K 166960K 18884 0 UVM aobj 42 21K 21K 166960K 43 0 pinsyscall 42 84K 104K 166960K 3173 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 169 0 NDP 12 0K 1K 166960K 105 0 temp 78 8684K 8752K 166960K 105073 0 kqueue 14 22K 34K 166960K 383 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 120 159 0 155 1 0 1 1 0 8 0 rtentry 176 230 0 135 5 0 5 5 0 8 0 unpcb 144 1175 0 1154 9 8 1 4 0 8 0 syncache 336 8 0 8 1 1 0 1 0 8 0 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 736 666 0 659 16 9 7 7 0 8 5 arp 136 32 0 15 1 0 1 1 0 8 0 inpcb 328 2320 0 2306 19 12 7 10 0 8 5 ip6q 72 2 0 2 2 2 0 1 0 8 0 ip6af 40 4 0 4 2 2 0 1 0 8 0 nd6 152 48 0 21 2 0 2 2 0 8 0 pkpcb 40 13 0 13 4 3 1 1 0 8 1 kcovpl 48 14 0 6 1 0 1 1 0 8 0 mppekey 1024 4 0 4 2 1 1 1 0 8 1 ppxss 1192 79 0 79 2 1 1 1 0 8 1 pppxif 1504 18 0 18 3 2 1 1 0 8 1 pffrag 232 13 0 5 1 0 1 1 0 482 0 pffrnode 88 12 0 4 1 0 1 1 0 8 0 pffrent 40 21 0 13 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 2 0 2 1 1 0 1 0 8 0 pfrule 1360 1 0 1 1 1 0 1 0 8 0 rttmr 136 6 0 6 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1102 0 699 37 9 28 30 0 8 0 art_table 40 1105 0 699 5 0 5 5 0 8 0 art_node 32 225 0 141 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 7 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 178 0 168 1 0 1 1 0 8 0 shmpl 112 32 0 1 1 0 1 1 0 8 0 dirhash 1024 41 0 24 3 0 3 3 0 8 0 dino2pl 256 4946 0 3429 95 0 95 95 0 8 0 ffsino 296 4946 0 3429 117 0 117 117 0 8 0 nchpl 144 7534 0 5813 64 0 64 64 0 8 0 rtmask 32 16 0 16 3 2 1 1 0 8 1 vnodes 216 5696 0 0 317 0 317 317 0 8 0 namei 1024 26541 0 26540 4 2 2 2 0 8 1 percpumem 16 154 0 104 1 0 1 1 0 8 0 vcpupl 3968 8 0 0 1 0 1 1 0 8 0 vmpool 848 8 0 0 1 0 1 1 0 8 0 kstatmem 264 154 0 128 4 1 3 3 0 8 0 scsiplug 72 13 0 13 6 5 1 1 0 8 1 scxspl 216 62581 0 62581 15 12 3 8 1 8 3 plimitpl 152 493 0 474 1 0 1 1 0 8 0 sigapl 424 2190 0 2142 8 1 7 8 0 8 1 knotepl 120 605 0 0 18 0 18 18 0 8 0 kqueuepl 224 851 0 841 9 8 1 5 0 8 0 pipepl 344 388 0 356 9 6 3 9 0 8 0 fdescpl 528 2150 0 2119 3 0 3 3 0 8 0 filepl 160 14211 0 13969 25 12 13 16 0 8 2 lockfpl 104 705 0 702 1 0 1 1 0 8 0 lockfspl 48 229 0 226 1 0 1 1 0 8 0 sessionpl 144 33 0 25 1 0 1 1 0 8 0 pgrppl 48 69 0 53 1 0 1 1 0 8 0 ucredpl 104 2482 0 2469 1 0 1 1 0 8 0 zombiepl 144 2145 0 2142 2 1 1 1 0 8 0 processpl 1232 2190 0 2142 6 2 4 6 0 8 0 procpl 664 5208 0 5150 8 1 7 8 0 8 0 sosppl 176 16 0 16 4 3 1 1 0 8 1 sockpl 752 3745 0 3706 31 20 11 14 0 8 6 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 125 0 0 16 0 16 16 0 8 0 mcl2k 2048 37 0 0 5 0 5 5 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 1416 0 0 88 0 88 88 0 8 0 bufpl 280 26449 0 20313 439 0 439 439 0 8 0 anonpl 32 17386 0 0 140 0 140 140 0 246 0 amapchunkpl 152 64036 0 63481 53 21 32 36 0 158 8 amappl16 200 9119 0 8924 75 60 15 30 0 8 4 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 10 0 9 1 0 1 1 0 8 0 amappl13 176 499 0 498 1 0 1 1 0 8 0 amappl12 168 2578 0 2536 3 0 3 3 0 8 0 amappl11 160 3 0 3 2 2 0 1 0 8 0 amappl10 152 50 0 36 1 0 1 1 0 8 0 amappl9 144 264 0 264 1 1 0 1 0 8 0 amappl8 136 30 0 27 1 0 1 1 0 8 0 amappl7 128 102 0 101 1 0 1 1 0 8 0 amappl6 120 376 0 361 1 0 1 1 0 8 0 amappl5 112 96 0 85 1 0 1 1 0 8 0 amappl4 104 475 0 446 1 0 1 1 0 8 0 amappl3 96 11316 0 11211 4 1 3 3 0 8 0 amappl2 88 2270 0 2192 2 0 2 2 0 8 0 amappl1 80 17906 0 17309 15 1 14 15 0 8 0 amappl 88 17746 0 17566 5 0 5 5 0 92 0 uvmvnodes 80 172 0 0 4 0 4 4 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 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 42 0 1 1 0 1 1 0 8 0 uaddrrnd 24 2150 0 2119 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2150 0 2119 1 0 1 1 0 8 0 vmmpekpl 168 19109 0 19047 3 0 3 3 0 8 0 vmmpepl 168 143609 0 141491 131 23 108 112 0 357 11 vmsppl 488 2149 0 2119 6 1 5 5 0 8 0 rwobjpl 80 40612 0 39277 38 5 33 36 0 8 0 pdppl 4096 4324 0 4246 118 36 82 84 0 8 4 pvpl 32 25893 0 0 208 0 208 208 0 265 0 pmappl 256 2157 0 2119 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 402 0 63 10 0 10 10 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83891ff0) 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 __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83a190c0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffffd806b2f2258) at biowait+0xc6 sys/kern/vfs_bio.c:1242 bwrite(fffffd806b2f2258) at bwrite+0x2e7 sys/kern/vfs_bio.c:754 VOP_BWRITE(fffffd806b2f2258) at VOP_BWRITE+0x60 sys/kern/vfs_vops.c:651 ufs_mkdir(ffff80003c3fe000) at ufs_mkdir+0x547 sys/ufs/ufs/ufs_vnops.c:1160 end trace frame: 0xffff80003c3fe070, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83891ff0) 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 __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a190c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83a190c0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffffd806b2f2258) at biowait+0xc6 sys/kern/vfs_bio.c:1242 bwrite(fffffd806b2f2258) at bwrite+0x2e7 sys/kern/vfs_bio.c:754 VOP_BWRITE(fffffd806b2f2258) at VOP_BWRITE+0x60 sys/kern/vfs_vops.c:651 ufs_mkdir(ffff80003c3fe000) at ufs_mkdir+0x547 sys/ufs/ufs/ufs_vnops.c:1160 VOP_MKDIR(fffffd80698c9e98,ffff80003c3fe160,ffff80003c3fe190,ffff80003c3fe090) at VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 domkdirat(ffff80003c4ee568,ffffff9c,79b202a2beb0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 syscall(ffff80003c3fe310) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3fe310) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79b202a2bf50, count: -18 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x688 savectx() at savectx+0xae end of kernel end trace frame: 0x70d9176293f0, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x70d9176293f0, count: -1