uvm_fault(0xfffffd806b31a020, 0x98, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81f340d8 cs 8 rflags 10246 cr2 98 cpl 0 rsp ffff80002a7afcc0 gsbase 0xffffffff838dfff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81f340d8 Starting stack trace... panic(ffffffff83485042) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80002a7afc10) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff8000fffefca0,fffffd80609321e0,ffff80002a7afdd0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimens(ffff8000fffefca0,ffff80002a7aff20,ffff80002a7afe70) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847 syscall(ffff80002a7aff20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7aff20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb87e423a10, count: 250 End of stack trace. WA RNIdNuG:m p StPoL dNOev T L4OW,E1RE D OnN oSYt SpoCssAiLLb l1e0 3 -1426598232 EXIT 0 a Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 445547 69264 0 0 0x4000000 0 syz-executor *288014 29677 0 0x10000002 0 1 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x7699aaf7d690, 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}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu0: uvm_fault(0xfffffd806b31a020, 0x98, 0, 1) -> e ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7699aaf7d690, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a39a060 rbx 0 rdx 0 rcx 0xffff8000fffeed10 rax 0x3d r8 0xffff80002a399f90 r9 0x1 r10 0xf7cb11cacdfd1222 r11 0x9f5a8f28038c4266 r12 0 r13 0 r14 0xffff8000fffeed10 r15 0 rip 0xffffffff8260f3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a399fe0 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=288014 pid=29677 tcnt=1 stat=onproc flags process=10000002 proc=0 runpri=78, usrpri=78, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeefa8,0xffff8000333b9258 process=0xffff80002a39f9d8 user=0xffff80002a395000, vmspace=0xfffffd806f3ed7a8 estcpu=28, cpticks=11, pctcpu=0.2, user=0, sys=11, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10768 179654 65895 0 2 0x100002 sh 29942 34868 73160 0 2 0 syz-executor 29942 132123 73160 0 3 0x4000080 fsleep syz-executor 69264 105327 37920 0 2 0 syz-executor 69264 445547 37920 0 7 0x4000000 syz-executor 69264 496149 37920 0 3 0x4000080 fsleep syz-executor 65895 181519 61417 0 3 0x82 wait syz-executor 77664 440466 61417 0 2 0xc82 syz-executor 58891 332033 0 0 3 0x14200 acct acct 26239 281782 77995 0 3 0x100082 sbwait arp 77995 59588 867 0 3 0x10008a sigsusp sh 22173 371509 89769 0 3 0x100082 sbwait ndp 89769 319435 15540 0 3 0x10008a sigsusp sh *29677 288014 61417 0 7 0x10000002 syz-executor 37920 138387 61417 0 2 0xc82 syz-executor 74807 317421 61417 0 2 0x2 syz-executor 15540 9618 61417 0 3 0x82 wait syz-executor 73160 426006 61417 0 2 0xc82 syz-executor 867 319836 61417 0 3 0x82 wait syz-executor 61417 492720 98522 0 3 0x82 kqread syz-executor 98522 235622 35592 0 3 0x10008a sigsusp ksh 35592 403812 86646 0 3 0x98 kqread sshd-session 86646 71959 91486 0 3 0x92 kqread sshd-session 42095 107428 1 0 2 0x100083 getty 91486 268161 1 0 3 0x88 kqread sshd 49965 198446 16994 74 3 0x1100092 bpf pflogd 16994 397058 1 0 3 0x80 sbwait pflogd 10045 310129 71974 73 3 0x1100090 kqread syslogd 71974 457656 1 0 3 0x100082 sbwait syslogd 65166 133965 1 0 3 0x100080 kqread resolvd 84681 135259 81734 77 3 0x100092 kqread dhcpleased 85222 215949 81734 77 3 0x100092 kqread dhcpleased 81734 85549 1 0 3 0x80 kqread dhcpleased 55627 306863 0 0 3 0x14200 bored smr 77474 54920 0 0 2 0x14200 zerothread 54336 2267 0 0 3 0x14200 aiodoned aiodoned 81263 271140 0 0 3 0x14200 syncer update 45399 376810 0 0 3 0x14200 cleaner cleaner 87157 389666 0 0 2 0x14200 reaper 17209 274274 0 0 3 0x14200 pgdaemon pagedaemon 23104 285175 0 0 3 0x14200 bored viomb 24675 65945 0 0 3 0x40014200 acpi0 acpi0 99119 281195 0 0 3 0x40014200 idle1 96092 218161 0 0 3 0x14200 bored softnet1 23570 448240 0 0 2 0x14200 softnet0 67701 12257 0 0 3 0x14200 bored systqmp 71426 338753 0 0 3 0x14200 bored systq 89155 137173 0 0 2 0x14200 softclockmp 82520 498612 0 0 3 0x40014200 tmoslp softclock 53326 172527 0 0 3 0x40014200 idle0 1 241558 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806b319910) #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 pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #2 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1827 #3 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869 #4 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #4 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497 #5 exit1+0x6fc sys/kern/kern_exit.c:260 #6 sys_exit+0x1a sys/kern/kern_exit.c:-1 #7 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #8 Xsyscall+0x128 Process 69264 (syz-executor) thread 0xffff8000fffefca0 (445547) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839be540) #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 74807 (syz-executor) thread 0xffff8000fffef240 (317421) exclusive rrwlock inode r = 0 (0xfffffd806c68e560) #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:3143 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cec5430) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3128 #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 11062 12087K 12473K 166960K 12602 0 pcb 17 12K 12K 166960K 64 0 rtable 219 7K 7K 166960K 437 0 pf 35 17K 21K 166960K 77 0 ifaddr 40 6K 8K 166960K 67 0 ifgroup 55 2K 2K 166960K 95 0 sysctl 3 1K 9K 166960K 8 0 counters 70 37K 37K 166960K 100 0 ioctlops 0 0K 4K 166960K 1537 0 iov 0 0K 16K 166960K 13 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1293 81K 82K 166960K 1594 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 14 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 396 0 sigio 0 0K 0K 166960K 6 0 proc 72 115K 164K 166960K 642 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 38 0 in_multi 79 5K 6K 166960K 125 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 14 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 438 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 221 156K 173K 166960K 5267 0 UVM aobj 39 2K 4K 166960K 40 0 pinsyscall 44 88K 108K 166960K 1605 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 8 0 NDP 12 0K 1K 166960K 40 0 temp 42 9071K 12927K 166960K 14030 0 kqueue 15 22K 30K 166960K 61 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 43 0 38 1 0 1 1 0 8 0 rtentry 176 136 0 39 5 0 5 5 0 8 0 unpcb 144 159 0 142 2 0 2 2 0 8 1 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 76 0 71 1 0 1 1 0 8 0 arp 136 24 0 6 1 0 1 1 0 8 0 inpcb 328 286 0 276 4 1 3 4 0 8 2 nd6 152 27 0 9 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 7 0 7 1 0 1 1 0 8 1 pppxif 1576 4 0 4 1 0 1 1 0 8 1 pfstscr 40 3 0 3 1 1 0 1 0 8 0 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 4 0 0 1 0 1 1 0 8 0 pffrent 40 5 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 1 0 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 42 0 0 1 0 1 1 0 8 0 pfstkey 128 45 0 3 2 0 2 2 0 8 0 pfstate 448 44 0 2 5 0 5 5 0 8 0 pfrule 1360 33 0 27 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 526 0 153 27 0 27 27 0 8 2 art_table 40 527 0 153 5 0 5 5 0 8 0 art_node 32 135 0 48 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 11 0 1 1 0 1 1 0 8 0 shmpl 112 37 0 1 2 0 2 2 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1997 0 527 93 0 93 93 0 8 0 ffsino 296 1997 0 527 114 0 114 114 0 8 0 nchpl 144 2484 0 775 64 0 64 64 0 8 0 vnodes 216 2229 0 0 124 0 124 124 0 8 0 namei 1024 7913 0 7912 1 0 1 1 0 8 0 percpumem 16 65 0 15 1 0 1 1 0 8 0 kstatmem 264 47 0 20 3 0 3 3 0 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 8705 0 8705 10 3 7 8 1 8 7 plimitpl 152 61 0 44 1 0 1 1 0 8 0 sigapl 424 705 0 655 7 0 7 7 0 8 0 knotepl 120 521 0 0 16 0 16 16 0 8 0 kqueuepl 224 91 0 81 2 0 2 2 0 8 1 pipepl 344 147 0 120 3 0 3 3 0 8 0 fdescpl 528 688 0 657 3 0 3 3 0 8 0 filepl 160 2989 0 2771 11 1 10 11 0 8 0 lockfpl 104 95 0 93 1 0 1 1 0 8 0 lockfspl 48 43 0 41 1 0 1 1 0 8 0 sessionpl 144 32 0 23 1 0 1 1 0 8 0 pgrppl 48 48 0 31 1 0 1 1 0 8 0 ucredpl 104 272 0 259 1 0 1 1 0 8 0 zombiepl 144 657 0 655 1 0 1 1 0 8 0 processpl 1232 705 0 655 5 0 5 5 0 8 0 procpl 664 1083 0 1030 6 0 6 6 0 8 0 sosppl 176 4 0 4 1 0 1 1 0 8 1 sockpl 752 494 0 462 7 1 6 7 0 8 2 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 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 mcl2k 2048 26 0 0 4 0 4 4 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 277 0 0 18 0 18 18 0 8 0 bufpl 280 2898 0 106 200 0 200 200 0 8 0 anonpl 32 3903 0 0 32 0 32 32 0 246 0 amapchunkpl 152 15783 0 15388 22 1 21 22 0 158 2 amappl16 200 2018 0 2000 5 3 2 5 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 461 0 457 1 0 1 1 0 8 0 amappl13 176 127 0 113 1 0 1 1 0 8 0 amappl12 168 948 0 918 2 0 2 2 0 8 0 amappl11 160 7 0 7 1 1 0 1 0 8 0 amappl10 152 63 0 49 1 0 1 1 0 8 0 amappl9 144 260 0 260 1 1 0 1 0 8 0 amappl8 136 113 0 111 1 0 1 1 0 8 0 amappl7 128 169 0 154 1 0 1 1 0 8 0 amappl6 120 188 0 184 1 0 1 1 0 8 0 amappl5 112 98 0 87 1 0 1 1 0 8 0 amappl4 104 299 0 277 1 0 1 1 0 8 0 amappl3 96 3039 0 2942 4 0 4 4 0 8 0 amappl2 88 544 0 478 2 0 2 2 0 8 0 amappl1 80 10966 0 10313 17 1 16 17 0 8 1 amappl 88 4481 0 4342 4 0 4 4 0 92 0 uvmvnodes 80 104 0 0 3 0 3 3 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 2 0 2 1 1 0 1 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 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 39 0 1 1 0 1 1 0 8 0 uaddrrnd 24 688 0 657 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 688 0 657 1 0 1 1 0 8 0 vmmpekpl 168 7272 0 7229 3 0 3 3 0 8 0 vmmpepl 168 51234 0 49399 99 1 98 99 0 357 11 vmsppl 488 687 0 656 5 0 5 5 0 8 0 rwobjpl 80 17029 0 15893 28 2 26 27 0 8 1 pdppl 4096 1383 0 1312 103 26 77 87 0 8 6 pvpl 32 11851 0 0 96 0 96 96 0 265 0 pmappl 256 687 0 656 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 286 0 32 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838dfff0) 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(ffffffff839bdd40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839bdd40) at __mp_lock+0x192 sys/kern/kern_lock.c:173 scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f scsi_iopool_get sys/scsi/scsi_base.c:260 [inline] scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f sys/scsi/scsi_base.c:655 sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sd_flush sys/scsi/sd.c:-1 [inline] sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sys/scsi/sd.c:271 config_suspend(ffff8000002a2c00,6) at config_suspend+0x62 sys/kern/subr_autoconf.c:834 scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_link sys/scsi/scsiconf.c:410 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_bus sys/scsi/scsiconf.c:360 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab sys/scsi/scsiconf.c:259 config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 pciactivate(ffff80000002ce00,6) at pciactivate+0xd8 sys/dev/pci/pci.c:230 config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_suspend_all(6) at config_suspend_all+0x49a config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_suspend_all(6) at config_suspend_all+0x49a sys/kern/subr_autoconf.c:858 end trace frame: 0xffff80002a7afae0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff838dfff0) 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(ffffffff839bdd40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839bdd40) at __mp_lock+0x192 sys/kern/kern_lock.c:173 scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f scsi_iopool_get sys/scsi/scsi_base.c:260 [inline] scsi_xs_get(ffff8000002a4100,103) at scsi_xs_get+0x15f sys/scsi/scsi_base.c:655 sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sd_flush sys/scsi/sd.c:-1 [inline] sdactivate(ffff8000002a2c00,6) at sdactivate+0x268 sys/scsi/sd.c:271 config_suspend(ffff8000002a2c00,6) at config_suspend+0x62 sys/kern/subr_autoconf.c:834 scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_link sys/scsi/scsiconf.c:410 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab scsi_activate_bus sys/scsi/scsiconf.c:360 [inline] scsibusactivate(ffff8000002a3500,6) at scsibusactivate+0xab sys/scsi/scsiconf.c:259 config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff8000000a4000,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff800000025a00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_activate_children(ffff80000002ce00,6) at config_activate_children+0x1c5 sys/kern/subr_autoconf.c:896 pciactivate(ffff80000002ce00,6) at pciactivate+0xd8 sys/dev/pci/pci.c:230 config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 config_suspend sys/kern/subr_autoconf.c:834 [inline] config_activate_children(ffff80000002f080,6) at config_activate_children+0x1a1 sys/kern/subr_autoconf.c:896 config_suspend_all(6) at config_suspend_all+0x49a config_suspend sys/kern/subr_autoconf.c:-1 [inline] config_suspend_all(6) at config_suspend_all+0x49a sys/kern/subr_autoconf.c:858 boot(104) at boot+0x253 sys/arch/amd64/amd64/machdep.c:950 reboot(104) at reboot+0xb1 panic(ffffffff83485042) at panic+0x1f9 kerntrap(ffff80002a7afc10) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff8000fffefca0,fffffd80609321e0,ffff80002a7afdd0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimens(ffff8000fffefca0,ffff80002a7aff20,ffff80002a7afe70) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2847 syscall(ffff80002a7aff20) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a7aff20) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb87e423a10, count: -23 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x688 savectx() at savectx+0xae end of kernel end trace frame: 0x7699aaf7d690, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7699aaf7d690, count: -1