¹j¼õ¬|ÿ ž¨E1\…:./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaauvm_fault(0xfffffd80654a3b98, 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 40230 59235 0 0 0 0 syz-executor *335533 59235 0 0 0x4000000 1K syz-executor 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(ffff800001651830,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000168f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800030f9ebb0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061d2f010,1,fffffd80097fd3a8,ffff8000fffe22c0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 fdrop(fffffd80665ea9d0,ffff8000fffe22c0) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd80665ea9d0,ffff8000fffe22c0) at closef+0x192 sys/kern/kern_descrip.c:1265 sys_closefrom(ffff8000fffe22c0,ffff800030f9ee80,ffff800030f9edd0) at sys_closefrom+0x13c sys/kern/kern_descrip.c:1471 syscall(ffff800030f9ee80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030f9ee80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf353f9feeb0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd80654a3b98, 0x48, 0, 1) -> e ddb{1}> 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(ffff800001651830,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000168f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800030f9ebb0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061d2f010,1,fffffd80097fd3a8,ffff8000fffe22c0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 fdrop(fffffd80665ea9d0,ffff8000fffe22c0) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd80665ea9d0,ffff8000fffe22c0) at closef+0x192 sys/kern/kern_descrip.c:1265 sys_closefrom(ffff8000fffe22c0,ffff800030f9ee80,ffff800030f9edd0) at sys_closefrom+0x13c sys/kern/kern_descrip.c:1471 syscall(ffff800030f9ee80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030f9ee80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf353f9feeb0, count: -13 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800030f9e9d0 rbx 0 rdx 0 rcx 0xffff8000fffe22c0 rax 0xffff8000299adffe r8 0 r9 0x1 r10 0xedfc253f5f0d13a6 r11 0x695723c74dfa6ceb r12 0xfe r13 0x9 r14 0x28 r15 0 rip 0xffffffff82e27245 witness_checkorder+0xb5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800030f9e930 ss 0x10 witness_checkorder+0xb5: movl 0x20(%r14),%r15d ddb{1}> show proc PROC (syz-executor) tid=335533 pid=59235 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe27f0,0xffff8000fffe3a28 process=0xffff8000fffec018 user=0xffff800030f99000, vmspace=0xfffffd80654a3b98 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 59235 40230 17292 0 7 0 syz-executor *59235 335533 17292 0 7 0x4000000 syz-executor 59235 156686 17292 0 3 0x4000080 fsleep syz-executor 59235 25189 17292 0 3 0x4000080 fsleep syz-executor 36392 352503 81408 0 2 0 syz-executor 36392 283915 81408 0 3 0x4000080 fsleep syz-executor 91385 46025 84963 0 2 0 syz-executor 91385 95390 84963 0 3 0x4000080 fsleep syz-executor 44827 372496 89658 0 3 0x80 nanoslp syz-executor 44827 9952 89658 0 3 0x4000080 fsleep syz-executor 9443 200031 59413 0 2 0 syz-executor 9443 495084 59413 0 3 0x4000080 fsleep syz-executor 9443 42845 59413 0 3 0x4000080 fsleep syz-executor 9443 451275 59413 0 3 0x4000080 fsleep syz-executor 35833 247195 32692 0 3 0x80 nanoslp syz-executor 35833 187346 32692 0 3 0x4000080 dtread syz-executor 42570 332024 1 0 3 0x100083 ttyin getty 81408 349028 33099 0 3 0x82 nanoslp syz-executor 17292 149646 33099 0 3 0x82 nanoslp syz-executor 89658 26129 33099 0 3 0x82 nanoslp syz-executor 27713 376815 33099 0 3 0x82 nanoslp syz-executor 41585 422033 33099 0 2 0x2 syz-executor 59413 425558 33099 0 3 0x82 nanoslp syz-executor 32692 341889 33099 0 2 0x3 syz-executor 84963 360600 33099 0 3 0x82 nanoslp syz-executor 33099 375359 71391 0 3 0x82 kqread syz-executor 71391 155734 32203 0 3 0x10008a sigsusp ksh 32203 120063 36245 0 3 0x98 kqread sshd-session 36245 361611 52159 0 3 0x92 kqread sshd-session 52159 429808 1 0 3 0x88 kqread sshd 78282 488032 61879 74 3 0x1100092 bpf pflogd 61879 259317 1 0 3 0x80 sbwait pflogd 863 430595 7864 73 3 0x1100090 kqread syslogd 7864 159357 1 0 3 0x100082 sbwait syslogd 79459 169860 1 0 3 0x100080 kqread resolvd 57064 278134 83318 77 2 0x100013 dhcpleased 50349 60060 83318 77 3 0x100092 kqread dhcpleased 83318 426713 1 0 3 0x80 kqread dhcpleased 55834 277937 0 0 3 0x14200 bored smr 40342 472751 0 0 2 0x14200 zerothread 92562 152684 0 0 3 0x14200 aiodoned aiodoned 72250 94979 0 0 3 0x14200 syncer update 42291 90462 0 0 3 0x14200 cleaner cleaner 34049 458302 0 0 3 0x14200 reaper reaper 28257 398619 0 0 3 0x14200 pgdaemon pagedaemon 42639 90187 0 0 3 0x14200 bored viomb 39456 310621 0 0 3 0x40014200 acpi0 acpi0 15427 465365 0 0 3 0x40014200 idle1 49920 26417 0 0 3 0x14200 bored softnet1 85303 412468 0 0 3 0x14200 bored softnet0 65029 265236 0 0 3 0x14200 bored systqmp 58227 104707 0 0 3 0x14200 bored systq 12682 271837 0 0 3 0x14200 tmoslp softclockmp 31652 231336 0 0 3 0x40014200 tmoslp softclock 75419 522068 0 0 3 0x40014200 idle0 1 98589 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 59235 (syz-executor) thread 0xffff8000fffe22c0 (335533) exclusive rwlock dtlk r = 0 (0xffffffff83862e08) #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 dt_ioctl_record_stop+0x2e sys/dev/dt/dt_dev.c:572 #3 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #3 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #4 spec_close+0x466 sys/kern/spec_vnops.c:-1 #5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:621 #7 fdrop+0x121 sys/kern/kern_descrip.c:1281 #8 closef+0x192 sys/kern/kern_descrip.c:1265 #9 sys_closefrom+0x13c sys/kern/kern_descrip.c:1471 #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 (0xffffffff839a8ec0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 vn_closefile+0x41 sys/kern/vfs_vnops.c:614 #2 fdrop+0x121 sys/kern/kern_descrip.c:1281 #3 closef+0x192 sys/kern/kern_descrip.c:1265 #4 sys_closefrom+0x13c sys/kern/kern_descrip.c:1471 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 Process 41585 (syz-executor) thread 0xffff8000ffffd760 (422033) exclusive rwlock vmmaplk r = 0 (0xfffffd80654a3310) #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+0x12b sys/uvm/uvm_map.c:3752 #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 exclusive rwlock vmmaplk r = 0 (0xfffffd800b063100) #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 11089 12183K 12352K 166960K 12430 0 pcb 17 14K 16K 166960K 125 0 rtable 235 7K 7K 166960K 389 0 pf 35 17K 24K 166960K 97 0 ifaddr 42 7K 7K 166960K 53 0 ifgroup 55 2K 2K 166960K 69 0 sysctl 3 1K 9K 166960K 7 0 counters 70 37K 37K 166960K 86 0 ioctlops 0 0K 4K 166960K 1521 0 iov 0 0K 12K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1304 82K 82K 166960K 1539 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 18 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 85K 166960K 351 0 proc 72 115K 164K 166960K 571 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 25 0 in_multi 98 7K 7K 166960K 108 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 399 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 242 167K 188K 166960K 5156 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 43 86K 101K 166960K 1502 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 13 0 NDP 12 0K 1K 166960K 32 0 temp 42 9075K 9141K 166960K 19763 0 kqueue 13 20K 31K 166960K 69 0 SYN cache 2 8K 16K 166960K 3 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 40 1 0 1 1 0 8 0 rtentry 176 120 0 15 7 1 6 6 0 8 1 unpcb 144 132 0 113 1 0 1 1 0 8 0 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpcb 736 98 0 93 4 0 4 4 0 8 2 arp 136 20 0 5 1 0 1 1 0 8 0 inpcb 328 325 0 317 9 5 4 7 0 8 2 nd6 152 24 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 6 0 6 2 1 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 7 0 2 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 6 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 44 0 0 1 0 1 1 0 8 0 pfstkey 128 44 0 0 2 0 2 2 0 8 0 pfstate 448 43 0 0 5 0 5 5 0 8 0 pfrule 1360 27 0 22 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 493 0 44 31 2 29 31 0 8 0 art_table 40 494 0 44 5 0 5 5 0 8 0 art_node 32 120 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1966 0 496 93 0 93 93 0 8 0 ffsino 296 1966 0 496 114 0 114 114 0 8 0 nchpl 144 2455 0 745 64 0 64 64 0 8 0 vnodes 216 2154 0 0 120 0 120 120 0 8 0 namei 1024 7699 0 7699 2 1 1 2 0 8 1 percpumem 16 58 0 8 1 0 1 1 0 8 0 kstatmem 264 34 0 8 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 8140 0 8140 4 3 1 3 1 8 1 plimitpl 152 50 0 33 1 0 1 1 0 8 0 sigapl 424 666 0 618 7 1 6 7 0 8 0 knotepl 120 504 0 0 16 0 16 16 0 8 0 kqueuepl 224 83 0 74 1 0 1 1 0 8 0 pipepl 344 129 0 102 3 0 3 3 0 8 0 fdescpl 528 650 0 618 3 0 3 3 0 8 0 filepl 160 2858 0 2631 15 3 12 13 0 8 0 lockfpl 104 80 0 77 1 0 1 1 0 8 0 lockfspl 48 36 0 33 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 43 0 26 1 0 1 1 0 8 0 ucredpl 104 332 0 319 1 0 1 1 0 8 0 zombiepl 144 686 0 685 2 1 1 1 0 8 0 processpl 1232 666 0 618 5 1 4 5 0 8 0 procpl 664 1057 0 999 6 0 6 6 0 8 0 sockpl 752 510 0 480 13 6 7 10 0 8 3 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 126 0 0 16 0 16 16 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 5 0 0 1 0 1 1 0 8 0 mbufpl 256 278 0 0 17 0 17 17 0 8 0 bufpl 280 2880 0 105 199 0 199 199 0 8 0 anonpl 32 7493 0 0 61 0 61 61 0 246 0 amapchunkpl 152 15745 0 15242 35 4 31 31 0 158 7 amappl16 200 2493 0 2472 17 5 12 14 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 441 0 440 1 0 1 1 0 8 0 amappl13 176 130 0 118 1 0 1 1 0 8 0 amappl12 168 904 0 874 2 0 2 2 0 8 0 amappl11 160 10 0 9 1 0 1 1 0 8 0 amappl10 152 66 0 52 1 0 1 1 0 8 0 amappl9 144 265 0 265 1 1 0 1 0 8 0 amappl8 136 110 0 108 1 0 1 1 0 8 0 amappl7 128 150 0 137 1 0 1 1 0 8 0 amappl6 120 158 0 157 1 0 1 1 0 8 0 amappl5 112 174 0 164 1 0 1 1 0 8 0 amappl4 104 296 0 274 1 0 1 1 0 8 0 amappl3 96 2904 0 2786 4 0 4 4 0 8 0 amappl2 88 537 0 475 2 0 2 2 0 8 0 amappl1 80 10626 0 10017 19 2 17 17 0 8 2 amappl 88 4384 0 4213 5 0 5 5 0 92 0 uvmvnodes 80 105 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 1 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 650 0 618 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 650 0 618 1 0 1 1 0 8 0 vmmpekpl 168 7148 0 7116 2 0 2 2 0 8 0 vmmpepl 168 49628 0 47681 99 0 99 99 0 357 4 vmsppl 488 649 0 618 6 1 5 5 0 8 1 rwobjpl 80 17028 0 15970 28 1 27 27 0 8 2 pdppl 4096 1307 0 1236 105 32 73 83 0 8 2 pvpl 32 13409 0 0 109 0 109 109 0 265 0 pmappl 256 649 0 618 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 293 0 39 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838f2ff0) 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(ffffffff839a86c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839a86c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7bf39f71d9d0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff838f2ff0) 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(ffffffff839a86c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff839a86c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7bf39f71d9d0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d 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(ffff800001651830,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000168f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800030f9ebb0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061d2f010,1,fffffd80097fd3a8,ffff8000fffe22c0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 fdrop(fffffd80665ea9d0,ffff8000fffe22c0) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd80665ea9d0,ffff8000fffe22c0) at closef+0x192 sys/kern/kern_descrip.c:1265 sys_closefrom(ffff8000fffe22c0,ffff800030f9ee80,ffff800030f9edd0) at sys_closefrom+0x13c sys/kern/kern_descrip.c:1471 syscall(ffff800030f9ee80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030f9ee80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf353f9feeb0, count: 2 ddb{1}> 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(ffff800001651830,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 dt_ioctl_record_stop(ffff80000168f000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(41e5f,1,2000,ffff8000fffe22c0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff800030f9ebb0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061d2f010,1,fffffd80097fd3a8,ffff8000fffe22c0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80665ea9d0,ffff8000fffe22c0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:621 fdrop(fffffd80665ea9d0,ffff8000fffe22c0) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd80665ea9d0,ffff8000fffe22c0) at closef+0x192 sys/kern/kern_descrip.c:1265 sys_closefrom(ffff8000fffe22c0,ffff800030f9ee80,ffff800030f9edd0) at sys_closefrom+0x13c sys/kern/kern_descrip.c:1471 syscall(ffff800030f9ee80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030f9ee80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf353f9feeb0, count: -13