uvm_fault(0xfffffd800b0275b8, 0x0, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81290238 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80003c40c050 gsbase 0xffff8000299edff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81290238 Starting stack trace... panic(ffffffff833bd349) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c40bfa0) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001480000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593 dtclose(21e5f,2,2000,ffff8000fffeb250) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,2,2000,ffff8000fffeb250) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c40c150) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806d32f7a8,2,fffffd80097fb5b0,ffff8000fffeb250) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806a913a48,ffff8000fffeb250) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806a913a48,ffff8000fffeb250) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806a913a48,ffff8000fffeb250) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806a913a48,ffff8000fffeb250) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffeb250) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffeb250,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffeb250,ffff80003c40c4c0,ffff80003c40c410) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c40c4c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40c4c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7089b810d5c0, count: 242 End of stack trace. WARNING: SPL NOT LOWERED ON TRAP EXIT 4 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND 73440 20956 0 0 0 0 syz-executor *219300 27293 0 0 0 1 syz-executor proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6ffff48428a0, 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(0xfffffd800b0275b8, 0x0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6ffff48428a0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003a0065c0 rbx 0 rdx 0 rcx 0xffff8000fffed248 rax 0x2a r8 0xffff80003a0064f0 r9 0x1 r10 0xd3e2f33750cee010 r11 0xb297e5fe09bfb254 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff815b94c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003a006540 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=219300 pid=27293 tcnt=3 stat=onproc flags process=0 proc=0 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeba18,0xffff80002a27ed20 process=0xffff8000357e5830 user=0xffff80003a001000, vmspace=0xfffffd806c209b90 estcpu=36, cpticks=4, pctcpu=0.0, user=3, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20956 73440 37466 0 7 0 syz-executor 20956 151130 37466 0 2 0x4000000 syz-executor 24648 391612 62727 0 2 0 syz-executor 24648 509171 62727 0 3 0x4000080 fsleep syz-executor 67938 19790 83783 0 2 0 syz-executor 67938 278309 83783 0 3 0x4000080 pipewr syz-executor 57092 58427 33709 0 2 0 syz-executor 57092 51745 33709 0 3 0x4000080 fsleep syz-executor 53087 105306 0 0 3 0x14200 acct acct 89911 234201 57553 0 3 0x80 nanoslp syz-executor 89911 225445 57553 0 3 0x4000080 kqread syz-executor 89911 462179 57553 0 3 0x4000080 fsleep syz-executor 89911 462111 57553 0 3 0x4000080 fsleep syz-executor *27293 219300 29714 0 7 0 syz-executor 27293 264513 29714 0 3 0x4000080 ttyout syz-executor 27293 153077 29714 0 3 0x4000080 fsleep syz-executor 71637 63842 14724 0 3 0x3000 suspend syz-executor 71637 491520 14724 0 2 0x4081000 syz-executor 81510 523759 0 0 3 0x14280 nfsidl nfsio 7824 84504 0 0 3 0x14280 nfsidl nfsio 27648 202932 0 0 3 0x14280 nfsidl nfsio 87714 181627 0 0 3 0x14280 nfsidl nfsio 89456 251266 0 0 3 0x14280 nfsidl nfsio 1834 491328 0 0 3 0x14280 nfsidl nfsio 67208 520020 0 0 3 0x14280 nfsidl nfsio 4347 184823 0 0 3 0x14280 nfsidl nfsio 33812 502244 0 0 3 0x14280 nfsidl nfsio 82181 339107 0 0 3 0x14280 nfsidl nfsio 44626 319540 0 0 3 0x14280 nfsidl nfsio 36055 196756 0 0 3 0x14280 nfsidl nfsio 74870 471687 0 0 3 0x14280 nfsidl nfsio 64930 270638 0 0 3 0x14280 nfsidl nfsio 69354 108235 0 0 3 0x14280 nfsidl nfsio 61265 438048 0 0 3 0x14280 nfsidl nfsio 1491 430768 0 0 3 0x14280 nfsidl nfsio 84084 10986 0 0 3 0x14280 nfsidl nfsio 92402 364163 0 0 3 0x14280 nfsidl nfsio 12698 471584 0 0 3 0x14280 nfsidl nfsio 95554 205370 0 0 3 0x14200 bored sosplice 37466 28577 38684 0 3 0x82 nanoslp syz-executor 33709 322376 38684 0 3 0x82 nanoslp syz-executor 62727 218666 38684 0 3 0x82 nanoslp syz-executor 29714 468805 38684 0 3 0x82 nanoslp syz-executor 14724 247912 38684 0 3 0x82 nanoslp syz-executor 83783 416987 38684 0 3 0x82 nanoslp syz-executor 36865 452754 38684 0 3 0x82 nanoslp syz-executor 57553 317106 38684 0 3 0x82 nanoslp syz-executor 38684 262660 63145 0 3 0x82 kqread syz-executor 63145 111008 95923 0 3 0x10008a sigsusp ksh 95923 309202 54758 0 3 0x98 kqread sshd-session 54758 430932 19431 0 3 0x92 kqread sshd-session 11966 340230 1 0 3 0x100083 ttyopn getty 19431 506551 1 0 3 0x88 kqread sshd 43125 238685 11788 74 3 0x1100092 bpf pflogd 11788 42965 1 0 3 0x80 sbwait pflogd 97836 336233 69336 73 3 0x1100090 kqread syslogd 69336 365570 1 0 3 0x100082 sbwait syslogd 85546 310839 1 0 3 0x100080 kqread resolvd 33466 141446 76488 77 3 0x100092 kqread dhcpleased 79591 447201 76488 77 3 0x100092 kqread dhcpleased 76488 9968 1 0 3 0x80 kqread dhcpleased 20186 410015 0 0 3 0x14200 bored smr 35197 50220 0 0 2 0x14200 zerothread 5995 482961 0 0 3 0x14200 aiodoned aiodoned 99955 181075 0 0 3 0x14200 syncer update 2892 509998 0 0 3 0x14200 cleaner cleaner 95478 390338 0 0 3 0x14200 reaper reaper 55690 458495 0 0 3 0x14200 pgdaemon pagedaemon 58665 163778 0 0 3 0x14200 bored viomb 72422 275845 0 0 3 0x40014200 acpi0 acpi0 98729 348753 0 0 3 0x40014200 idle1 57441 491451 0 0 3 0x14200 bored softnet1 50330 281342 0 0 3 0x14200 netlock softnet0 54146 98232 0 0 3 0x14200 smrbar systqmp 31072 183277 0 0 3 0x14200 bored systq 1364 22072 0 0 3 0x14200 tmoslp softclockmp 55746 493693 0 0 3 0x40014200 tmoslp softclock 27623 73127 0 0 3 0x40014200 idle0 1 122757 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 71637 (syz-executor) thread 0xffff8000fffeba18 (491520) exclusive rrwlock inode r = 0 (0xfffffd806e135a60) #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+0xa3 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:748 #9 Xsyscall+0x128 Process 54146 (systqmp) thread 0xffff8000ffffe530 (98232) shared rwlock systqmp r = 0 (0xffffffff837c5888) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10223 11130K 11422K 166960K 11766 0 pcb 51 14K 14K 166960K 162 0 rtable 178 7K 9K 166960K 443 0 pf 34 17K 22K 166960K 102 0 ifaddr 34 5K 7K 166960K 65 0 ifgroup 55 2K 3K 166960K 110 0 sysctl 4 1K 9K 166960K 13 0 counters 68 36K 38K 166960K 114 0 ioctlops 0 0K 4K 166960K 1536 0 iov 0 0K 16K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1409 89K 89K 166960K 1736 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 616K 624K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 24 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 514 0 sigio 0 0K 0K 166960K 9 0 proc 72 115K 180K 166960K 577 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 41 0 in_multi 63 4K 7K 166960K 111 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 462 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 259 152K 165K 166960K 6531 0 UVM aobj 13 2K 2K 166960K 13 0 pinsyscall 43 86K 104K 166960K 1646 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 19 0 NDP 12 0K 2K 166960K 44 0 temp 76 8652K 8718K 166960K 27556 0 kqueue 15 22K 28K 166960K 120 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 61 0 58 1 0 1 1 0 8 0 rtentry 176 125 0 54 6 0 6 6 0 8 0 unpcb 144 245 0 228 2 1 1 2 0 8 0 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpcb 736 175 0 170 7 0 7 7 0 8 6 arp 136 22 0 9 1 0 1 1 0 8 0 inpcb 328 775 0 663 13 0 13 13 0 8 3 nd6 152 24 0 9 1 0 1 1 0 8 0 pkpcb 40 9 0 9 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 15 0 15 1 0 1 1 0 8 1 pppxif 1504 2 0 2 2 1 1 1 0 8 1 pffrag 232 6 0 5 1 0 1 1 0 482 0 pffrnode 88 5 0 4 1 0 1 1 0 8 0 pffrent 40 14 0 12 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 7 0 7 1 0 1 1 0 8 1 pfanchor 1288 2 0 2 1 0 1 1 0 8 1 pftag 88 2 0 2 1 0 1 1 0 8 1 pfqueue 320 2 0 2 1 1 0 1 0 8 0 pfstitem 24 57 0 3 1 0 1 1 0 8 0 pfstkey 128 57 0 3 2 0 2 2 0 8 0 pfstate 384 57 0 3 6 0 6 6 0 8 0 pfrule 1344 26 0 21 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 478 0 188 29 1 28 29 0 8 6 art_table 40 480 0 188 5 0 5 5 0 8 0 art_node 32 125 0 60 1 0 1 1 0 8 0 semapl 112 21 0 11 1 0 1 1 0 8 0 shmpl 112 10 0 0 1 0 1 1 0 8 0 dirhash 1024 26 0 9 3 0 3 3 0 8 0 dino2pl 256 2322 0 813 95 0 95 95 0 8 0 ffsino 296 2322 0 813 117 0 117 117 0 8 0 nchpl 144 3050 0 1344 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 2627 0 0 146 0 146 146 0 8 0 namei 1024 9457 0 9457 1 0 1 1 0 8 1 percpumem 16 72 0 23 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 0 1 1 0 8 1 kstatmem 264 60 0 32 3 0 3 3 0 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 22088 0 22088 3 2 1 2 1 8 1 plimitpl 152 122 0 103 1 0 1 1 0 8 0 sigapl 424 850 0 780 9 1 8 8 0 8 0 knotepl 120 566 0 0 17 0 17 17 0 8 0 kqueuepl 224 252 0 241 5 1 4 5 0 8 3 pipepl 344 166 0 137 4 0 4 4 0 8 1 fdescpl 528 808 0 776 3 0 3 3 0 8 0 filepl 160 4331 0 4006 16 1 15 15 0 8 1 lockfpl 104 113 0 111 1 0 1 1 0 8 0 lockfspl 48 55 0 53 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 473 0 459 1 0 1 1 0 8 0 zombiepl 144 782 0 780 1 0 1 1 0 8 0 processpl 1232 850 0 780 6 0 6 6 0 8 0 procpl 664 1518 0 1438 8 0 8 8 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 752 1098 0 966 17 0 17 17 0 8 3 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 108 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 28 0 0 4 0 4 4 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 176 0 0 11 0 11 11 0 8 0 bufpl 280 9570 0 3433 439 0 439 439 0 8 0 anonpl 32 12743 0 0 103 0 103 103 0 246 0 amapchunkpl 152 21205 0 20595 32 0 32 32 0 158 7 amappl16 200 3631 0 3498 26 1 25 25 0 8 11 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 3 0 3 1 1 0 1 0 8 0 amappl13 176 426 0 425 1 0 1 1 0 8 0 amappl12 168 1168 0 1125 3 1 2 3 0 8 0 amappl11 160 7 0 7 1 1 0 1 0 8 0 amappl10 152 54 0 40 1 0 1 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 67 0 65 1 0 1 1 0 8 0 amappl7 128 79 0 77 1 0 1 1 0 8 0 amappl6 120 278 0 264 1 0 1 1 0 8 0 amappl5 112 79 0 68 1 0 1 1 0 8 0 amappl4 104 448 0 419 1 0 1 1 0 8 0 amappl3 96 3587 0 3483 4 1 3 3 0 8 0 amappl2 88 924 0 846 2 0 2 2 0 8 0 amappl1 80 10969 0 10366 16 1 15 15 0 8 0 amappl 88 5722 0 5541 5 0 5 5 0 92 0 uvmvnodes 80 2627 0 0 54 0 54 54 0 8 0 dma16384 16384 1 0 1 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 7 0 7 2 2 0 1 0 8 0 dma32 32 8 0 8 2 1 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 12 0 0 1 0 1 1 0 8 0 uaddrrnd 24 808 0 776 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 808 0 776 1 0 1 1 0 8 0 vmmpekpl 168 8366 0 8324 3 0 3 3 0 8 1 vmmpepl 168 59346 0 57237 107 0 107 107 0 357 2 vmsppl 488 807 0 776 6 1 5 5 0 8 1 rwobjpl 80 21937 0 18241 82 0 82 82 0 8 0 pdppl 4096 1624 0 1552 98 26 72 84 0 8 0 pvpl 32 20284 0 0 165 1 164 164 0 265 0 pmappl 256 807 0 776 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 275 0 31 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83885ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 sys/dev/kcov.c:153 __mp_lock(ffffffff838d43c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838d43c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 scsi_xs_put(fffffd80097f3360) at scsi_xs_put+0x51 scsi_iopool_put sys/scsi/scsi_base.c:270 [inline] scsi_xs_put(fffffd80097f3360) at scsi_xs_put+0x51 scsi_io_put sys/scsi/scsi_base.c:499 [inline] scsi_xs_put(fffffd80097f3360) at scsi_xs_put+0x51 sys/scsi/scsi_base.c:787 scsi_done(fffffd80097f3360) at scsi_done+0x40 sys/scsi/scsi_base.c:1496 vioscsi_vq_done(ffff8000000a4268) at vioscsi_vq_done+0xe1 sys/dev/pv/vioscsi.c:-1 intr_handler(ffff80003c462c80,ffff80000007aa80) at intr_handler+0x125 sys/arch/amd64/amd64/intr.c:563 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x704f01763bb0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff83885ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 sys/dev/kcov.c:153 __mp_lock(ffffffff838d43c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838d43c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 scsi_xs_put(fffffd80097f3360) at scsi_xs_put+0x51 scsi_iopool_put sys/scsi/scsi_base.c:270 [inline] scsi_xs_put(fffffd80097f3360) at scsi_xs_put+0x51 scsi_io_put sys/scsi/scsi_base.c:499 [inline] scsi_xs_put(fffffd80097f3360) at scsi_xs_put+0x51 sys/scsi/scsi_base.c:787 scsi_done(fffffd80097f3360) at scsi_done+0x40 sys/scsi/scsi_base.c:1496 vioscsi_vq_done(ffff8000000a4268) at vioscsi_vq_done+0xe1 sys/dev/pv/vioscsi.c:-1 intr_handler(ffff80003c462c80,ffff80000007aa80) at intr_handler+0x125 sys/arch/amd64/amd64/intr.c:563 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x704f01763bb0, count: -10 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: 0x6ffff48428a0, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6ffff48428a0, count: -1