uvm_fault(0xfffffd806c677b88, 0x98, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff81bde0a8 cs 8 rflags 10246 cr2 98 cpl 0 rsp ffff80003c409140 gsbase 0xffff8000299adff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff81bde0a8 Starting stack trace... panic(ffffffff83481a14) at panic+0x1d0 sys/kern/subr_prf.c:229 kerntrap(ffff80003c409090) at kerntrap+0x30b alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff80003a3c2fb0,fffffd8076983888,ffff80003c409270) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2771 sys_futimes(ffff80003a3c2fb0,ffff80003c4093c0,ffff80003c409310) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2813 syscall(ffff80003c4093c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4093c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a2854df2a0, count: 250 End of stack trace. W ARNING: SPL NOT LOWERED ON TRAP EXIT 4 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *396512 15024 0 0 0 1 syz-executor 221661 80115 0 0x14000 0x200 0 softnet0 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x78ffeae8bbc0, 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 *cpu1: uvm_fault(0xfffffd806c677b88, 0x98, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x78ffeae8bbc0, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80003c40fde0 rbx 0 rdx 0 rcx 0xffff800030395cc0 rax 0x2a r8 0xffff80003c40fd10 r9 0x1 r10 0x73fc89985cb5274f r11 0xda05220f56746504 r12 0 r13 0xffffffff83196028 Xdoreti+0x18 r14 0 r15 0 rip 0xffffffff82b9a4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c40fd60 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{1}> show proc PROC (syz-executor) tid=396512 pid=15024 tcnt=3 stat=onproc flags process=0 proc=0 runpri=86, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800030395790,0xffff80003a3c3258 process=0xffff80003c3dce90 user=0xffff80003c40a000, vmspace=0xfffffd806c6773e8 estcpu=36, cpticks=3, pctcpu=0.0, user=1, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 96021 194936 75005 0 2 0 syz-executor 96021 374331 75005 0 3 0x4000000 sbar syz-executor 99209 415692 37455 0 2 0 syz-executor 99209 174271 37455 0 3 0x4000080 fsleep syz-executor 64111 403313 87376 0 2 0 syz-executor 64111 305886 87376 0 3 0x4000080 fsleep syz-executor 28235 245648 93011 60929 2 0x10 syz-executor 28235 376593 93011 60929 2 0x4000010 syz-executor *15024 396512 30236 0 7 0 syz-executor 15024 342944 30236 0 2 0x4000000 syz-executor 15024 474017 30236 0 3 0x4000000 vmmaplk syz-executor 19537 336754 47922 0 2 0 syz-executor 19537 383431 47922 0 3 0x4000080 fsleep syz-executor 19537 377276 47922 0 3 0x4000080 fsleep syz-executor 19537 127554 47922 0 3 0x4000080 fsleep syz-executor 19537 447354 47922 0 2 0x4000000 syz-executor 47922 66586 33419 0 2 0xc82 syz-executor 37455 353069 33419 0 2 0xc82 syz-executor 93011 282301 33419 0 2 0xc82 syz-executor 30021 274017 0 0 3 0x14200 acct acct 93690 362663 0 0 3 0x14280 nfsidl nfsio 40604 438976 0 0 3 0x14280 nfsidl nfsio 20600 176541 0 0 3 0x14280 nfsidl nfsio 52106 339308 0 0 3 0x14280 nfsidl nfsio 37372 123446 0 0 3 0x14280 nfsidl nfsio 74622 255976 0 0 3 0x14280 nfsidl nfsio 78860 446552 0 0 3 0x14280 nfsidl nfsio 93110 348588 0 0 3 0x14280 nfsidl nfsio 51121 201240 0 0 3 0x14280 nfsidl nfsio 13896 256718 0 0 3 0x14280 nfsidl nfsio 77333 18254 0 0 3 0x14280 nfsidl nfsio 70794 325138 0 0 3 0x14280 nfsidl nfsio 92530 330485 0 0 3 0x14280 nfsidl nfsio 70088 433028 0 0 3 0x14280 nfsidl nfsio 57942 461761 0 0 3 0x14280 nfsidl nfsio 35486 6066 0 0 3 0x14280 nfsidl nfsio 4949 477208 0 0 3 0x14280 nfsidl nfsio 22356 110950 0 0 3 0x14280 nfsidl nfsio 41163 277572 0 0 3 0x14280 nfsidl nfsio 73324 45726 0 0 3 0x14280 nfsidl nfsio 75005 486379 33419 0 2 0xc82 syz-executor 92195 421462 33419 0 2 0x2 syz-executor 58597 160431 33419 0 2 0xc82 syz-executor 30236 137871 33419 0 2 0xc82 syz-executor 87376 235516 33419 0 2 0xc82 syz-executor 33419 211553 1 0 3 0x82 kqread syz-executor 89004 415962 93653 0 3 0x98 kqread sshd-session 93653 68655 57943 0 3 0x92 kqread sshd-session 21633 503605 1 0 2 0x100083 getty 57943 229888 1 0 3 0x88 kqread sshd 82028 454079 43055 74 3 0x1100092 bpf pflogd 43055 335198 1 0 3 0x80 sbwait pflogd 63185 421709 1695 73 3 0x1100090 kqread syslogd 1695 16223 1 0 3 0x100082 sbwait syslogd 47994 64079 1 0 3 0x100080 kqread resolvd 95210 402532 55657 77 3 0x100092 kqread dhcpleased 48974 298042 55657 77 3 0x100092 kqread dhcpleased 55657 429488 1 0 3 0x80 kqread dhcpleased 44426 124468 0 0 3 0x14200 bored smr 7660 368868 0 0 2 0x14200 zerothread 91861 96316 0 0 3 0x14200 aiodoned aiodoned 94783 4097 0 0 3 0x14200 syncer update 90929 461591 0 0 3 0x14200 cleaner cleaner 79708 23518 0 0 3 0x14200 reaper reaper 5713 89829 0 0 3 0x14200 pgdaemon pagedaemon 44329 276613 0 0 3 0x14200 bored viomb 2444 184362 0 0 3 0x40014200 acpi0 acpi0 5056 270193 0 0 3 0x40014200 idle1 79236 428450 0 0 3 0x14200 bored softnet1 80115 221661 0 0 7 0x14200 softnet0 34931 396293 0 0 2 0x14200 systqmp 38180 218061 0 0 3 0x14200 bored systq 59862 243804 0 0 2 0x14200 softclockmp 39078 477035 0 0 3 0x40014200 tmoslp softclock 67198 122306 0 0 3 0x40014200 idle0 1 207365 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 96021 (syz-executor) thread 0xffff80003a3c2fb0 (374331) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83aa7580) #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 28235 (syz-executor) thread 0xffff80003bfda7f8 (376593) exclusive rrwlock inode r = 0 (0xfffffd806fb957a8) #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 ufs_rename+0x214 sys/ufs/ufs/ufs_vnops.c:768 #6 VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 #7 dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3064 #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 exclusive rrwlock inode r = 0 (0xfffffd806c055c58) #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 dorenameat+0x144 sys/kern/vfs_syscalls.c:3034 #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 Process 15024 (syz-executor) thread 0xffff80003bfda560 (342944) exclusive rwlock vmmaplk r = 0 (0xfffffd806c6774e8) #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 Process 19537 (syz-executor) thread 0xffff80003a3c22b8 (447354) exclusive rwlock fdlock r = 0 (0xffff80003a3ba070) #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 doopenat+0x179 sys/kern/vfs_syscalls.c:1122 #3 sys_open+0x59 sys/kern/vfs_syscalls.c:1063 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #5 Xsyscall+0x128 Process 92195 (syz-executor) thread 0xffff8000fffefca0 (421462) exclusive rwlock vmmaplk r = 0 (0xfffffd800b063e58) #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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171 #3 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3743 #4 process_new+0x577 sys/kern/kern_fork.c:281 #5 fork1+0x3f6 sys/kern/kern_fork.c:-1 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11102 12108K 12494K 166960K 13412 0 pcb 17 14K 16K 166960K 232 0 rtable 217 7K 8K 166960K 569 0 pf 41 19K 25K 166960K 191 0 ifaddr 40 7K 7K 166960K 96 0 ifgroup 62 2K 3K 166960K 145 0 sysctl 4 1K 9K 166960K 13 0 counters 72 37K 38K 166960K 138 0 ioctlops 0 0K 4K 166960K 1825 0 iov 0 0K 24K 166960K 38 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1413 89K 89K 166960K 2539 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 212 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 1140 0 sigio 0 0K 0K 166960K 9 0 proc 72 115K 164K 166960K 750 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 209 0 in_multi 81 6K 7K 166960K 176 0 ether_multi 1 0K 0K 166960K 9 0 mrt 1 0K 0K 166960K 37 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 583 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 235 151K 178K 166960K 12229 0 UVM aobj 25 2K 2K 166960K 26 0 pinsyscall 42 84K 104K 166960K 2448 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 49 0 NDP 13 0K 2K 166960K 67 0 temp 63 9084K 9151K 166960K 52141 0 kqueue 15 24K 28K 166960K 198 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 120 129 0 125 1 0 1 1 0 8 0 rtentry 176 180 0 88 6 1 5 6 0 8 0 unpcb 144 635 0 618 7 6 1 3 0 8 0 syncache 336 13 0 13 4 3 1 1 0 8 1 tcpqe 32 2 0 2 2 1 1 1 0 8 1 tcpcb 736 433 0 427 12 10 2 7 0 8 1 arp 136 31 0 13 1 0 1 1 0 8 0 inpcb 328 1266 0 1255 13 7 6 7 0 8 5 nd6 152 39 0 18 1 0 1 1 0 8 0 pkpcb 40 10 0 10 3 2 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 23 0 23 3 2 1 1 0 8 1 pppxif 1576 1 0 1 1 0 1 1 0 8 1 pfstscr 40 7 0 5 2 1 1 1 0 8 0 pffrag 232 6 0 3 1 0 1 1 0 482 0 pffrnode 88 5 0 2 1 0 1 1 0 8 0 pffrent 40 13 0 10 1 0 1 1 0 8 0 pfosfp 40 1431 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfanchor 1288 10 0 0 1 0 1 1 0 8 0 pftag 88 2 0 1 2 1 1 1 0 8 0 pfstitem 24 90 0 30 1 0 1 1 0 8 0 pfstkey 128 100 0 40 2 0 2 2 0 8 0 pfstate 448 93 0 36 7 0 7 7 0 8 0 pfrule 1360 33 0 27 2 1 1 2 0 8 0 rttmr 136 5 0 5 3 2 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 780 0 409 34 9 25 29 0 8 1 art_table 40 782 0 409 5 0 5 5 0 8 0 art_node 32 179 0 95 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 209 0 199 1 0 1 1 0 8 0 shmpl 112 23 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 3439 0 1966 93 0 93 93 0 8 0 ffsino 296 3439 0 1966 114 0 114 114 0 8 0 nchpl 144 4972 0 3259 64 0 64 64 0 8 0 rtmask 32 2 0 2 2 2 0 1 0 8 0 vnodes 216 4274 0 0 238 0 238 238 0 8 0 namei 1024 17156 0 17154 2 1 1 1 0 8 0 percpumem 16 84 0 33 1 0 1 1 0 8 0 kstatmem 264 88 0 58 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 6 0 6 1 1 0 1 0 8 0 scxspl 216 15510 0 15510 13 11 2 8 1 8 2 plimitpl 152 161 0 145 1 0 1 1 0 8 0 sigapl 424 1468 0 1400 8 0 8 8 0 8 0 knotepl 120 552 0 0 17 0 17 17 0 8 0 kqueuepl 224 347 0 336 3 2 1 3 0 8 0 pipepl 344 272 0 243 9 6 3 9 0 8 0 fdescpl 528 1431 0 1400 3 0 3 3 0 8 0 filepl 160 9051 0 8833 34 16 18 26 0 8 4 lockfpl 104 548 0 545 2 1 1 2 0 8 0 lockfspl 48 248 0 245 1 0 1 1 0 8 0 sessionpl 144 196 0 187 1 0 1 1 0 8 0 pgrppl 48 221 0 203 1 0 1 1 0 8 0 ucredpl 104 1665 0 1651 1 0 1 1 0 8 0 zombiepl 144 1946 0 1944 2 1 1 1 0 8 0 processpl 1232 1468 0 1400 6 0 6 6 0 8 0 procpl 664 3190 0 3109 8 0 8 8 0 8 0 sosppl 176 4 0 4 4 4 0 1 0 8 0 sockpl 752 2056 0 2024 22 12 10 14 0 8 6 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 129 0 0 17 0 17 17 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 256 0 0 15 0 15 15 0 8 0 bufpl 280 4559 0 109 318 0 318 318 0 8 0 anonpl 32 7635 0 0 62 0 62 62 0 246 0 amapchunkpl 152 40823 0 40325 42 16 26 31 0 158 1 amappl16 200 2852 0 2820 14 11 3 11 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 478 0 478 1 0 1 1 0 8 1 amappl13 176 150 0 138 1 0 1 1 0 8 0 amappl12 168 1704 0 1674 2 0 2 2 0 8 0 amappl11 160 5 0 4 1 0 1 1 0 8 0 amappl10 152 64 0 50 1 0 1 1 0 8 0 amappl9 144 269 0 269 1 1 0 1 0 8 0 amappl8 136 119 0 116 1 0 1 1 0 8 0 amappl7 128 167 0 153 1 0 1 1 0 8 0 amappl6 120 195 0 194 1 0 1 1 0 8 0 amappl5 112 115 0 103 1 0 1 1 0 8 0 amappl4 104 341 0 318 1 0 1 1 0 8 0 amappl3 96 8161 0 8043 4 0 4 4 0 8 0 amappl2 88 692 0 629 2 0 2 2 0 8 0 amappl1 80 17439 0 16838 24 8 16 17 0 8 1 amappl 88 11200 0 11035 5 0 5 5 0 92 0 uvmvnodes 80 129 0 0 3 0 3 3 0 8 0 dma8192 8192 2 0 2 2 2 0 1 0 8 0 dma4096 4096 2 0 2 2 2 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 6 0 6 1 1 0 1 0 8 0 dma128 128 256 0 256 4 3 1 1 0 8 1 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 25 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1430 0 1400 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1430 0 1400 1 0 1 1 0 8 0 vmmpekpl 168 14352 0 14296 3 0 3 3 0 8 0 vmmpepl 168 100460 0 98530 115 16 99 99 0 357 7 vmsppl 488 1430 0 1400 6 1 5 5 0 8 0 rwobjpl 80 29420 0 28325 30 3 27 27 0 8 1 pdppl 4096 2869 0 2800 124 53 71 85 0 8 2 pvpl 32 14782 0 0 119 0 119 119 0 265 0 pmappl 256 1430 0 1400 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 332 0 82 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8395fff0) 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(ffffffff83aa6d80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83aa6d80) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80002a1dfd90,ffff800000079600) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_const_cmp4(58d08381215436b0,0) at __sanitizer_cov_trace_const_cmp4 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 msleep_nsec(ffff80000002c000,ffff80000002c018,20,ffffffff834adfeb,ffffffffffffffff) at msleep_nsec+0x132 sys/kern/kern_synch.c:219 taskq_next_work(ffff80000002c000,ffff80002a1dffe8) at taskq_next_work+0x8e sys/kern/kern_task.c:399 taskq_thread(ffff80000002c000) at taskq_thread+0x1d5 sys/kern/kern_task.c:439 end trace frame: 0x0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff8395fff0) 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(ffffffff83aa6d80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83aa6d80) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff80002a1dfd90,ffff800000079600) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_const_cmp4(58d08381215436b0,0) at __sanitizer_cov_trace_const_cmp4 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 msleep_nsec(ffff80000002c000,ffff80000002c018,20,ffffffff834adfeb,ffffffffffffffff) at msleep_nsec+0x132 sys/kern/kern_synch.c:219 taskq_next_work(ffff80000002c000,ffff80002a1dffe8) at taskq_next_work+0x8e sys/kern/kern_task.c:399 taskq_thread(ffff80000002c000) at taskq_thread+0x1d5 sys/kern/kern_task.c:439 end trace frame: 0x0, count: -11 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: 0x78ffeae8bbc0, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x78ffeae8bbc0, count: -1