panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 109460 78287 0 0 0 1 syz-executor * 24157 99514 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8350aedb) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffff5000d8679a8,200000860000,200000861000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffff5000d8679a8,200000860000,200000871000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffff5000d8679a8,200000860000,200000871000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003a3b82b8,2000008604c0,10000,1,ffff80002eb856e8) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff8198b4e0,d02,0,ffffffff8198bd10,ffff80002eb859c8) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80002eb85810) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffff500675bfd90,ffff80002eb859c8,5,fffff500097fd4e0) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffff5006cc840e8,ffff80002eb859c8,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80003a3b82b8,5,ffff80002eb859c8,0,ffff80002eb85a80) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff80003a3b82b8,ffff80002eb85b30,ffff80002eb85a80) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002eb85b30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002eb85b30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91e0ba876a0, count: 2 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault_unwire_locked: address not in map ddb{0}> show kasan No such command ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8350aedb) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffff5000d8679a8,200000860000,200000861000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffff5000d8679a8,200000860000,200000871000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffff5000d8679a8,200000860000,200000871000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003a3b82b8,2000008604c0,10000,1,ffff80002eb856e8) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff8198b4e0,d02,0,ffffffff8198bd10,ffff80002eb859c8) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80002eb85810) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffff500675bfd90,ffff80002eb859c8,5,fffff500097fd4e0) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffff5006cc840e8,ffff80002eb859c8,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80003a3b82b8,5,ffff80002eb859c8,0,ffff80002eb85a80) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff80003a3b82b8,ffff80002eb85b30,ffff80002eb85a80) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002eb85b30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002eb85b30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91e0ba876a0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002eb85430 rbx 0xffffffff839d7e07 cpu_info_full_primary+0x2e07 rdx 0xffff8000015fcf80 rcx 0xffff80003a3b82b8 rax 0xffffffff839d6ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xa5da50366d3cb757 r11 0x5b66ffcb89e51c15 r12 0xffffffff839d7c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff81852225 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002eb85420 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=24157 pid=99514 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003a3b9a10,0xffff80003a3b8fc0 process=0xffff80003138c020 user=0xffff80002eb80000, vmspace=0xfffff5000d8679a8 estcpu=36, cpticks=11, pctcpu=0.0, user=0, sys=11, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 78287 109460 35208 0 7 0 0 syz-executor 78287 439267 35208 0 2 0 0x4000000 syz-executor 83910 14772 32830 0 3 0x10 0x80 nanoslp syz-executor 83910 90067 32830 0 3 0x10 0x4000080 sbwait syz-executor 70409 491238 90026 0 3 0 0x80 nanoslp syz-executor 70409 184875 90026 0 3 0 0x4000080 kqsel syz-executor 70409 377518 90026 0 3 0 0x4000080 fsleep syz-executor 73960 122321 84018 0 3 0x1 0x80 nanoslp syz-executor 73960 258888 84018 0 3 0x1 0x4000080 ttyin syz-executor 73960 459149 84018 0 3 0x1 0x4000080 ttyin syz-executor 73960 502628 84018 0 3 0x1 0x4000080 fsleep syz-executor 99514 353009 57571 0 2 0 0 syz-executor *99514 24157 57571 0 7 0 0x4000000 syz-executor 99514 502623 57571 0 2 0 0x4000000 syz-executor 99514 173108 57571 0 2 0 0x4000000 syz-executor 35749 147691 97636 0 2 0 0 syz-executor 35749 338846 97636 0 3 0 0x4000080 sbwait syz-executor 35749 13123 97636 0 3 0 0x4000080 fsleep syz-executor 35289 516865 37616 0 3 0 0x80 nanoslp syz-executor 35289 68266 37616 0 3 0 0x4000080 fifor syz-executor 35289 454974 37616 0 3 0 0x4000080 kqsel syz-executor 35289 51586 37616 0 3 0 0x4000080 fsleep syz-executor 51510 35483 1001 0 3 0 0x80 nanoslp syz-executor 51510 14655 1001 0 3 0 0x4000080 lockf syz-executor 51510 264075 1001 0 3 0 0x4000080 fsleep syz-executor 84018 383037 17313 0 3 0x2 0x80 nanoslp syz-executor 57571 511987 17313 0 3 0x2 0x80 nanoslp syz-executor 35208 72202 17313 0 3 0x2 0x80 nanoslp syz-executor 90026 337563 17313 0 3 0x2 0x80 nanoslp syz-executor 1001 335207 17313 0 3 0x2 0x80 nanoslp syz-executor 97636 430914 17313 0 3 0x2 0x80 nanoslp syz-executor 37616 342258 17313 0 2 0x2 0 syz-executor 32830 68023 17313 0 3 0x2 0x80 nanoslp syz-executor 17313 65796 67230 0 3 0x2 0x80 kqread syz-executor 67230 32048 30819 0 3 0x100002 0x88 sigsusp ksh 30819 224467 78229 0 3 0x10 0x88 kqread sshd-session 78229 23058 47949 0 3 0x12 0x80 kqread sshd-session 64820 453558 1 0 3 0x100003 0x80 ttyin getty 47949 442297 1 0 3 0 0x88 kqread sshd 21113 353049 11564 74 3 0x1100012 0x80 bpf pflogd 11564 474587 1 0 3 0 0x80 sbwait pflogd 82928 136481 79639 73 3 0x1100010 0x80 kqread syslogd 79639 353947 1 0 3 0x100002 0x80 sbwait syslogd 89325 299901 1 0 3 0x100000 0x80 kqread resolvd 21788 101751 73189 77 3 0x100012 0x80 kqread dhcpleased 88098 514525 73189 77 3 0x100012 0x80 kqread dhcpleased 73189 86048 1 0 3 0 0x80 kqread dhcpleased 7084 374408 0 0 3 0x14000 0x200 bored smr 14782 264655 0 0 2 0x14000 0x200 zerothread 69511 251296 0 0 3 0x14000 0x200 aiodoned aiodoned 93639 202536 0 0 3 0x14000 0x200 syncer update 13869 37544 0 0 3 0x14000 0x200 cleaner cleaner 87724 139164 0 0 3 0x14000 0x200 reaper reaper 84882 126405 0 0 3 0x14000 0x200 pgdaemon pagedaemon 84320 392378 0 0 3 0x14000 0x200 bored viomb 18082 206986 0 0 3 0x14000 0x40000200 acpi0 acpi0 36908 480374 0 0 3 0x14000 0x40000200 idle1 8541 107075 0 0 3 0x14000 0x200 bored softnet1 91618 417438 0 0 3 0x14000 0x200 bored softnet0 15599 520586 0 0 3 0x14000 0x200 bored systqmp 92004 17039 0 0 3 0x14000 0x200 bored systq 73999 75006 0 0 3 0x14000 0x200 tmoslp softclockmp 95540 486339 0 0 3 0x14000 0x40000200 tmoslp softclock 68352 400328 0 0 3 0x14000 0x40000200 idle0 1 412961 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks Process 99514 (syz-executor) thread 0xffff80003a3b82b8 (24157) shared rwlock vmmaplk r = 0 (0xfffff5000d867aa8) #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 uvm_fault_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1723 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1706 #3 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #4 physio+0x257 sys/kern/kern_physio.c:139 #5 spec_write+0x11f sys/kern/spec_vnops.c:302 #6 VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 #7 vn_write+0x1d3 sys/kern/vfs_vnops.c:414 #8 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #9 sys_write+0xa2 sys/kern/sys_generic.c:300 #10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a81b00) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #3 rw_do_enter_read+0x309 sys/kern/kern_rwlock.c:-1 #4 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #5 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #6 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #7 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1703 #8 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #9 physio+0x257 sys/kern/kern_physio.c:139 #10 spec_write+0x11f sys/kern/spec_vnops.c:302 #11 VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 #12 vn_write+0x1d3 sys/kern/vfs_vnops.c:414 #13 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #14 sys_write+0xa2 sys/kern/sys_generic.c:300 #15 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #16 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11066 12215K 12343K 166960K 12281 0 pcb 17 12K 12K 166960K 36 0 rtable 221 7K 7K 166960K 398 0 pf 33 17K 27K 166960K 229 0 ifaddr 38 6K 7K 166960K 51 0 ifgroup 51 2K 2K 166960K 67 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 80 0 ioctlops 0 0K 4K 166960K 1606 0 iov 0 0K 12K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1293 81K 82K 166960K 1460 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 18 65K 93K 166960K 252 0 proc 72 115K 164K 166960K 557 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 4 0 in_multi 84 5K 6K 166960K 107 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 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 403 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 251 156K 162K 166960K 4198 0 UVM aobj 10 2K 2K 166960K 11 0 pinsyscall 43 86K 108K 166960K 1448 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 12 0K 2K 166960K 32 0 temp 39 9114K 9146K 166960K 5263 0 kqueue 14 22K 26K 166960K 43 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 47 0 44 1 0 1 1 0 8 0 rtentry 176 120 0 22 5 0 5 5 0 8 0 unpcb 144 116 0 86 2 0 2 2 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 35 0 31 1 0 1 1 0 8 0 arp 136 18 0 2 1 0 1 1 0 8 0 inpcb 328 174 0 165 4 0 4 4 0 8 3 nd6 152 28 0 7 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 3 0 3 1 0 1 1 0 8 1 pppxif 1576 2 0 2 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 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 pfanchor 1288 8 0 0 1 0 1 1 0 8 0 pfstitem 24 31 0 0 1 0 1 1 0 8 0 pfstkey 128 33 0 2 1 0 1 1 0 8 0 pfstate 448 32 0 1 4 0 4 4 0 8 0 pfrule 1360 24 0 17 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 506 0 98 29 0 29 29 0 8 1 art_table 40 507 0 98 5 0 5 5 0 8 0 art_node 32 120 0 30 1 0 1 1 0 8 0 semapl 72 13 0 4 1 0 1 1 0 8 0 shmpl 112 8 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1795 0 327 93 0 93 93 0 8 0 ffsino 296 1795 0 327 114 0 114 114 0 8 0 nchpl 144 2148 0 441 64 0 64 64 0 8 0 vnodes 216 1940 0 0 108 0 108 108 0 8 0 namei 1024 6812 0 6812 2 0 2 2 0 8 2 percpumem 16 56 0 6 1 0 1 1 0 8 0 kstatmem 264 33 0 8 2 0 2 2 0 8 0 scxspl 216 7500 0 7500 4 3 1 3 1 8 1 plimitpl 152 45 0 27 1 0 1 1 0 8 0 sigapl 424 581 0 533 7 0 7 7 0 8 1 knotepl 120 299 0 0 10 0 10 10 0 8 0 kqueuepl 224 52 0 40 1 0 1 1 0 8 0 pipepl 344 138 0 110 3 0 3 3 0 8 0 fdescpl 528 565 0 533 3 0 3 3 0 8 0 filepl 160 2479 0 2241 13 0 13 13 0 8 2 lockfpl 104 62 0 54 1 0 1 1 0 8 0 lockfspl 48 30 0 25 1 0 1 1 0 8 0 sessionpl 144 25 0 15 1 0 1 1 0 8 0 pgrppl 48 33 0 15 1 0 1 1 0 8 0 ucredpl 104 288 0 273 1 0 1 1 0 8 0 zombiepl 144 533 0 533 1 0 1 1 0 8 1 processpl 1232 581 0 533 5 0 5 5 0 8 0 procpl 664 771 0 706 6 0 6 6 0 8 0 sockpl 752 340 0 298 8 0 8 8 0 8 3 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 16 0 16 16 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mextrefs 64 21 0 0 1 0 1 1 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 141 0 0 9 0 9 9 0 8 0 bufpl 272 2594 0 105 166 0 166 166 0 8 0 anonpl 32 5640 0 0 46 0 46 46 0 247 0 amapchunkpl 152 12168 0 11620 28 1 27 27 0 158 3 amappl16 200 1939 0 1911 7 2 5 5 0 8 1 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 446 0 444 1 0 1 1 0 8 0 amappl13 176 134 0 122 1 0 1 1 0 8 0 amappl12 168 826 0 795 2 0 2 2 0 8 0 amappl11 160 1 0 1 1 1 0 1 0 8 0 amappl10 152 69 0 55 1 0 1 1 0 8 0 amappl9 144 278 0 277 1 0 1 1 0 8 0 amappl8 136 101 0 99 1 0 1 1 0 8 0 amappl7 128 153 0 139 1 0 1 1 0 8 0 amappl6 120 156 0 155 1 0 1 1 0 8 0 amappl5 112 106 0 95 1 0 1 1 0 8 0 amappl4 104 299 0 277 1 0 1 1 0 8 0 amappl3 96 2138 0 2032 3 0 3 3 0 8 0 amappl2 88 699 0 619 2 0 2 2 0 8 0 amappl1 80 11026 0 10414 15 0 15 15 0 8 2 amappl 88 3421 0 3241 5 0 5 5 0 92 0 uvmvnodes 80 103 0 0 3 0 3 3 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 1 1 1 0 8 1 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 10 0 1 1 0 1 1 0 8 0 uaddrrnd 24 565 0 533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 565 0 533 1 0 1 1 0 8 0 vmmpekpl 168 6569 0 6537 2 0 2 2 0 8 0 vmmpepl 168 45371 0 43377 90 0 90 90 0 357 0 vmsppl 488 564 0 533 5 0 5 5 0 8 1 rwobjpl 80 16065 0 14995 25 0 25 25 0 8 1 pdppl 4096 1137 0 1066 101 28 73 85 0 8 2 pvpl 32 12050 0 0 98 0 98 98 0 265 0 pmappl 256 564 0 533 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 442 0 30 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8350aedb) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffff5000d8679a8,200000860000,200000861000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffff5000d8679a8,200000860000,200000871000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffff5000d8679a8,200000860000,200000871000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003a3b82b8,2000008604c0,10000,1,ffff80002eb856e8) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff8198b4e0,d02,0,ffffffff8198bd10,ffff80002eb859c8) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80002eb85810) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffff500675bfd90,ffff80002eb859c8,5,fffff500097fd4e0) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffff5006cc840e8,ffff80002eb859c8,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80003a3b82b8,5,ffff80002eb859c8,0,ffff80002eb85a80) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff80003a3b82b8,ffff80002eb85b30,ffff80002eb85a80) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002eb85b30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002eb85b30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91e0ba876a0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) 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 end of kernel end trace frame: 0x7899854eda00, count: 12 ddb{1}> trace x86_ipi_db(ffff80002999dff0) 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 end of kernel end trace frame: 0x7899854eda00, count: -3