uvm_fault(0xfffffd8074f93d80, 0x48, 0, 1) -> e kernel: page fault trap, code=0 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d TID PID UID PRFLAGS PFLAGS CPU COMMAND witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_unbind(ffff8000016de230,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000165a000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff8000fffe67e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000fffe67e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a34dd90) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ef51398,81,fffffd80097fd5b0,ffff8000fffe67e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806f5b91e8,ffff8000fffe67e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806f5b91e8,ffff8000fffe67e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806f5b91e8,ffff8000fffe67e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806f5b91e8,ffff8000fffe67e8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffe67e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffe67e8,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffe67e8,ffff80002a34e100,ffff80002a34e050) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a34e100) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a34e100) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 end trace frame: 0xffff80002a34e180, count: 0 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(0xfffffd8074f93d80, 0x48, 0, 1) -> e ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_unbind(ffff8000016de230,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000165a000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff8000fffe67e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000fffe67e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a34dd90) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ef51398,81,fffffd80097fd5b0,ffff8000fffe67e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806f5b91e8,ffff8000fffe67e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806f5b91e8,ffff8000fffe67e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806f5b91e8,ffff8000fffe67e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806f5b91e8,ffff8000fffe67e8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffe67e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffe67e8,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffe67e8,ffff80002a34e100,ffff80002a34e050) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a34e100) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a34e100) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x774cb4c2c550, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a34dbb0 rbx 0 rdx 0 rcx 0xffff8000fffe67e8 rax 0xffffffff83824ffe cpu_info_full_primary+0x1ffe r8 0x2 r9 0 r10 0xe487c46023330664 r11 0xd03f90c800c11197 r12 0xfe r13 0x9 r14 0x28 r15 0 rip 0xffffffff813b6045 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a34db10 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{0}> show proc PROC (syz-executor) tid=118497 pid=45349 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000fffe67e8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a2ae800,0xffff8000fffe4fc8 process=0xffff80002abb49d0 user=0xffff80002a349000, vmspace=0xfffffd8074f93d80 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 60641 126966 91942 0 2 0 syz-executor 60641 223825 91942 0 2 0x4000000 syz-executor 33715 315375 36794 0 3 0x80 nanoslp syz-executor 33715 324668 36794 0 3 0x4000080 sbwait syz-executor 54670 391671 98166 0 3 0x3000 suspend syz-executor 54670 233216 98166 0 2 0x4081000 syz-executor 54670 121370 98166 0 3 0x4081000 fltagain2 syz-executor 41544 484603 91377 0 2 0xc80 syz-executor 41544 398026 91377 0 2 0x4000000 syz-executor 41544 434954 91377 0 3 0x4000000 fltagain2 syz-executor 41544 143926 91377 0 3 0x4000000 pipecl syz-executor 91826 19179 70630 0 3 0x80 nanoslp syz-executor 91826 107809 70630 0 3 0x4000080 pppxread syz-executor 91826 310214 70630 0 3 0x4000080 fsleep syz-executor 91826 246432 70630 0 3 0x4000080 fsleep syz-executor 18066 337579 19007 0 3 0x3000 suspend syz-executor 18066 360813 19007 0 2 0x4081000 syz-executor 18066 489440 19007 0 3 0x4081000 inode syz-executor 18066 278236 19007 0 3 0x4081000 inode syz-executor 95859 421320 0 0 3 0x14200 acct acct 53152 307671 5754 0 3 0x82 nanoslp syz-executor 36794 114233 5754 0 2 0xc82 syz-executor 56071 350269 1 0 3 0x100083 ttyopn getty 91377 443666 5754 0 3 0x82 nanoslp syz-executor 98166 310551 5754 0 3 0x82 nanoslp syz-executor 70630 338037 5754 0 2 0xc82 syz-executor 91942 44849 5754 0 2 0xc82 syz-executor 19007 392920 5754 0 3 0x82 wait syz-executor 48375 400574 5754 0 2 0x10000082 syz-executor 5754 78900 23906 0 3 0x82 kqread syz-executor 23906 519282 22221 0 3 0x10008a sigsusp ksh 22221 110620 30563 0 3 0x98 kqread sshd-session 30563 247665 53256 0 3 0x92 kqread sshd-session 53256 121039 1 0 3 0x88 kqread sshd 795 417924 34302 74 3 0x1100092 bpf pflogd 34302 417405 1 0 3 0x80 sbwait pflogd 16397 43900 70037 73 3 0x1100090 kqread syslogd 70037 445559 1 0 3 0x100082 sbwait syslogd 17862 190191 1 0 3 0x100080 kqread resolvd 38429 136733 86194 77 3 0x100092 kqread dhcpleased 76557 414815 86194 77 3 0x100092 kqread dhcpleased 86194 430082 1 0 3 0x80 kqread dhcpleased 57338 96562 0 0 3 0x14200 bored smr 4843 180033 0 0 2 0x14200 zerothread 13489 317378 0 0 3 0x14200 aiodoned aiodoned 54687 512885 0 0 3 0x14200 syncer update 15623 421015 0 0 3 0x14200 cleaner cleaner 99919 353683 0 0 3 0x14200 reaper reaper 30687 507607 0 0 3 0x14200 pgdaemon pagedaemon 66262 95443 0 0 3 0x14200 bored viomb 74289 33540 0 0 3 0x40014200 acpi0 acpi0 38952 422380 0 0 7 0x40014200 idle1 86618 157941 0 0 3 0x14200 bored softnet1 51471 518847 0 0 3 0x14200 bored softnet0 69713 246377 0 0 3 0x14200 bored systqmp 18793 3445 0 0 3 0x14200 bored systq 75034 171600 0 0 3 0x14200 tmoslp softclockmp 63258 156448 0 0 3 0x40014200 tmoslp softclock 67074 2271 0 0 3 0x40014200 idle0 1 215221 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 54670 (syz-executor) thread 0xffff8000fffe4d20 (233216) exclusive rrwlock inode r = 0 (0xfffffd806f810b48) #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 41544 (syz-executor) thread 0xffff8000fffe5cb0 (398026) exclusive rrwlock inode r = 0 (0xfffffd806fa2fd80) #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 18066 (syz-executor) thread 0xffff8000fffe74e0 (360813) exclusive rrwlock inode r = 0 (0xfffffd806e9516e8) #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 18066 (syz-executor) thread 0xffff8000fffe6550 (489440) exclusive rrwlock inode r = 0 (0xfffffd806e94da68) #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 dofchmodat+0x162 sys/kern/vfs_syscalls.c:2382 #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11112 12188K 12754K 166960K 15027 0 pcb 17 16K 18K 166960K 648 0 rtable 211 11K 11K 166960K 840 0 pf 33 17K 19K 166960K 250 0 ifaddr 37 7K 8K 166960K 190 0 ifgroup 51 2K 2K 166960K 319 0 sysctl 4 1K 9K 166960K 18 0 counters 68 36K 37K 166960K 770 0 ioctlops 0 0K 4K 166960K 2384 0 iov 0 0K 20K 166960K 149 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1489 94K 94K 166960K 3321 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 34 0 VM map 2 1K 1K 166960K 2 0 sem 33 1K 1K 166960K 58 0 dirhash 12 2K 2K 166960K 60 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 2015 0 sigio 0 0K 0K 166960K 72 0 proc 72 115K 164K 166960K 932 0 subproc 72 4K 4K 166960K 153 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 352 0 in_multi 77 5K 7K 166960K 382 0 ether_multi 1 0K 0K 166960K 62 0 mrt 2 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 758 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 259 164K 183K 166960K 19702 0 UVM aobj 48 14K 14K 166960K 54 0 pinsyscall 42 84K 100K 166960K 3357 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 275 0 NDP 11 0K 1K 166960K 137 0 temp 79 8680K 8806K 166960K 98941 0 kqueue 14 22K 32K 166960K 321 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 246 0 242 3 2 1 3 0 8 0 rtentry 176 264 0 183 5 0 5 5 0 8 0 unpcb 144 1276 0 1258 13 12 1 4 0 8 0 syncache 336 8 0 8 6 5 1 1 0 8 1 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 736 616 0 612 14 10 4 4 0 8 3 arp 136 43 0 28 1 0 1 1 0 8 0 inpcb 328 2638 0 2628 20 15 5 7 0 8 3 nd6 152 53 0 34 1 0 1 1 0 8 0 pkpcb 40 7 0 7 3 3 0 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 317 0 317 3 2 1 1 0 8 1 pppxif 1504 134 0 134 6 5 1 1 0 8 1 pffrag 232 12 0 4 1 0 1 1 0 482 0 pffrnode 88 10 0 4 1 0 1 1 0 8 0 pffrent 40 22 0 14 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 pfstitem 24 115 0 65 1 0 1 1 0 8 0 pfstkey 128 116 0 66 2 0 2 2 0 8 0 pfstate 448 115 0 66 7 0 7 7 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 6 0 6 4 4 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1102 0 761 34 10 24 28 0 8 0 art_table 40 1106 0 761 5 0 5 5 0 8 0 art_node 32 264 0 195 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 7 1 0 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 50 0 19 1 0 1 1 0 8 0 shmpl 112 44 0 4 2 0 2 2 0 8 0 dirhash 1024 49 0 32 3 0 3 3 0 8 0 dino2pl 256 5255 0 3726 96 0 96 96 0 8 0 ffsino 296 5255 0 3726 118 0 118 118 0 8 0 nchpl 144 7809 0 6072 65 0 65 65 0 8 0 rtmask 32 24 0 24 2 2 0 1 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 29421 0 29419 1 0 1 1 0 8 0 percpumem 16 400 0 351 1 0 1 1 0 8 0 vcpupl 3968 5 0 0 1 0 1 1 0 8 0 vmpool 848 7 0 2 1 0 1 1 0 8 0 kstatmem 264 200 0 176 3 0 3 3 0 8 1 scsiplug 72 5 0 5 4 4 0 1 0 8 0 scxspl 216 62169 0 62169 13 12 1 8 1 8 1 plimitpl 152 561 0 541 1 0 1 1 0 8 0 sigapl 424 2299 0 2250 8 1 7 8 0 8 0 knotepl 120 747 0 0 23 0 23 23 0 8 0 kqueuepl 224 849 0 837 14 11 3 5 0 8 2 pipepl 344 461 0 431 12 9 3 9 0 8 0 fdescpl 528 2260 0 2229 3 0 3 3 0 8 0 filepl 160 16406 0 16143 32 18 14 19 0 8 2 lockfpl 104 915 0 912 2 1 1 2 0 8 0 lockfspl 48 288 0 285 1 0 1 1 0 8 0 sessionpl 144 34 0 25 1 0 1 1 0 8 0 pgrppl 48 78 0 61 1 0 1 1 0 8 0 ucredpl 104 2232 0 2218 1 0 1 1 0 8 0 zombiepl 144 2254 0 2250 2 1 1 1 0 8 0 processpl 1232 2299 0 2250 7 2 5 6 0 8 0 procpl 664 5229 0 5167 8 1 7 8 0 8 0 sosppl 176 17 0 17 4 4 0 1 0 8 0 sockpl 752 4224 0 4192 31 22 9 14 0 8 5 mcl64k 65536 14 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 136 0 0 17 0 17 17 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 46 0 0 5 0 5 5 0 8 0 mtagpl 96 65 0 0 2 0 2 2 0 8 0 mbufpl 256 1214 0 0 75 0 75 75 0 8 0 bufpl 280 25504 0 19368 439 0 439 439 0 8 0 anonpl 32 13805 0 0 111 0 111 111 0 246 0 amapchunkpl 152 68754 0 68162 49 19 30 33 0 158 4 amappl16 200 8104 0 7688 73 51 22 28 0 8 0 amappl15 192 12 0 12 2 2 0 1 0 8 0 amappl14 184 8 0 8 2 2 0 1 0 8 0 amappl13 176 533 0 532 1 0 1 1 0 8 0 amappl12 168 2681 0 2639 2 0 2 2 0 8 0 amappl11 160 9 0 9 1 1 0 1 0 8 0 amappl10 152 53 0 38 1 0 1 1 0 8 0 amappl9 144 270 0 270 1 1 0 1 0 8 0 amappl8 136 119 0 116 1 0 1 1 0 8 0 amappl7 128 129 0 127 1 0 1 1 0 8 0 amappl6 120 390 0 375 1 0 1 1 0 8 0 amappl5 112 81 0 70 1 0 1 1 0 8 0 amappl4 104 477 0 447 1 0 1 1 0 8 0 amappl3 96 13424 0 13305 5 1 4 4 0 8 0 amappl2 88 629 0 567 2 0 2 2 0 8 0 amappl1 80 18021 0 17421 16 2 14 15 0 8 0 amappl 88 18527 0 18347 6 1 5 5 0 92 0 uvmvnodes 80 181 0 0 4 0 4 4 0 8 0 dma65536 65536 2 0 2 2 2 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 dma2048 2048 1 0 1 1 1 0 1 0 8 0 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 128 256 0 256 2 2 0 1 0 8 0 dma64 64 7 0 7 2 2 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 53 0 6 1 0 1 1 0 8 0 uaddrrnd 24 2260 0 2229 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2260 0 2229 1 0 1 1 0 8 0 vmmpekpl 168 18005 0 17939 4 0 4 4 0 8 0 vmmpepl 168 147936 0 145586 127 22 105 110 0 357 0 vmsppl 488 2259 0 2229 6 1 5 5 0 8 0 rwobjpl 80 40086 0 38512 37 2 35 35 0 8 0 pdppl 4096 4542 0 4467 135 58 77 82 0 8 2 pvpl 32 19947 0 0 160 0 160 160 0 265 0 pmappl 256 2266 0 2231 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 414 0 91 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779 mtx_enter(18) at mtx_enter+0x95 sys/kern/kern_lock.c:406 clockintr_unbind(ffff8000016de230,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000165a000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff8000fffe67e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000fffe67e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002a34dd90) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805ef51398,81,fffffd80097fd5b0,ffff8000fffe67e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806f5b91e8,ffff8000fffe67e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806f5b91e8,ffff8000fffe67e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806f5b91e8,ffff8000fffe67e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806f5b91e8,ffff8000fffe67e8) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff8000fffe67e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff8000fffe67e8,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff8000fffe67e8,ffff80002a34e100,ffff80002a34e050) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a34e100) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a34e100) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x774cb4c2c550, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5