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witness: lock order reversal: 1st 0xffff8000299dee30 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff838bc500 &sched_lock (&sched_lock) lock order [1] &cq->cq_mtx (&cq->cq_mtx) -> [2] &sched_lock (&sched_lock) #0 mtx_enter+0x95 sys/kern/kern_lock.c:406 #1 sleep_setup+0xed sys/kern/kern_synch.c:304 #2 msleep_nsec+0x10b sys/kern/kern_synch.c:217 #3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 #4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #4 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #5 spec_close+0x466 sys/kern/spec_vnops.c:-1 #6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #8 fdrop+0x121 sys/kern/kern_descrip.c:1280 #9 closef+0x192 sys/kern/kern_descrip.c:1264 #10 fdfree+0x116 sys/kern/kern_descrip.c:1195 #11 exit1+0x576 sys/kern/kern_exit.c:215 #12 sys_exit+0x1a sys/kern/kern_exit.c:-1 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 lock order [2] &sched_lock (&sched_lock) -> [1] &cq->cq_mtx (&cq->cq_mtx) #0 mtx_enter+0x95 sys/kern/kern_lock.c:406 #1 clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323 #2 mi_switch+0x187 sys/kern/sched_bsd.c:376 #3 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #4 sys_futex+0xb90 futex_wait sys/kern/sys_futex.c:306 [inline] #4 sys_futex+0xb90 sys/kern/sys_futex.c:155 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #6 Xsyscall+0x128 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff838bc500,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff838bc4f0) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffff8000299dee80,220,ffffffff83434b95) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffff8000299dee80,ffff8000299dee20,220,ffffffff83434b95,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001583000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff80002a27a7e0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80002a27a7e0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002f001d60) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800bf902b8,81,fffffd80097fd340,ffff80002a27a7e0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805fe4a808,ffff80002a27a7e0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805fe4a808,ffff80002a27a7e0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805fe4a808,ffff80002a27a7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805fe4a808,ffff80002a27a7e0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a27a7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a27a7e0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a27a7e0,ffff80002f0020d0,ffff80002f002020) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002f0020d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f0020d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74e6ef410aa0, count: -17 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002f001a30 rbx 0 rdx 0 rcx 0xffff80002a27a7e0 rax 0xffffffff83835ff0 cpu_info_full_primary+0x1ff0 r8 0xffff80002f001910 r9 0x8080808080808080 r10 0xcef596630166d1c8 r11 0xae419cb84e830364 r12 0xfffffd8003f4be40 r13 0xfffffd80046f6330 r14 0x3 r15 0xffffffff834251a8 substchar+0xf681 rip 0xffffffff811c7635 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002f001a20 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=330238 pid=3582 tcnt=0 stat=onproc flags process=1018<EXITING,SUGID,SINGLEEXIT> proc=2000<WEXIT> runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a27a7e0 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a27b240,0xffffffff8393d1a8 process=0xffff80003bbdc4f0 user=0xffff80002effd000, vmspace=0xfffffd806ec52010 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 24542 130856 71918 0 2 0x100002 ndp 71918 262390 89805 0 3 0x10008a sigsusp sh 74933 492755 84638 0 3 0x80 nanoslp syz-executor 74933 473468 84638 0 3 0x4000080 ttyin syz-executor 74933 111296 84638 0 3 0x4000080 fsleep syz-executor 85837 8225 97231 0 3 0x80 nanoslp syz-executor 85837 175784 97231 0 3 0x4000080 ttyout syz-executor 85837 288444 97231 0 3 0x4000080 fsleep syz-executor 85837 70913 97231 0 3 0x4000080 fsleep syz-executor 55782 104746 97483 0 2 0 syz-executor 55782 508513 97483 0 3 0x4000080 fsleep syz-executor 55782 215632 97483 0 3 0x4000080 fsleep syz-executor 55782 200340 97483 0 3 0x4000080 fsleep syz-executor 55782 86846 97483 0 3 0x4000080 fsleep syz-executor 69652 230315 55728 0 3 0x3000 suspend syz-executor 69652 298835 55728 0 3 0x4081000 biowait syz-executor 69652 274446 55728 0 3 0x4081000 inode syz-executor 89805 474545 29434 0 3 0x82 wait syz-executor 51817 491489 1 0 3 0x100083 ttyin getty 84638 33620 29434 0 3 0x82 nanoslp syz-executor 97483 361565 29434 0 3 0x82 nanoslp syz-executor 12662 323827 29434 0 3 0x82 nanoslp syz-executor 50140 501378 29434 0 3 0x82 nanoslp syz-executor 55728 407792 29434 0 2 0x2 syz-executor 57368 235935 29434 0 3 0x82 piperd syz-executor 62449 266177 88441 0 3 0x100082 sbwait arp 88441 292225 1 0 3 0x10008a sigsusp sh 97231 479943 29434 0 3 0x82 nanoslp syz-executor 29434 149693 16809 0 2 0x2 syz-executor 16809 399825 74338 0 3 0x10008a sigsusp ksh 74338 389235 22354 0 3 0x98 kqread sshd-session 22354 24917 31693 0 3 0x92 kqread sshd-session 31693 221351 1 0 3 0x88 kqread sshd 27079 521614 78620 74 3 0x1100092 bpf pflogd 78620 263050 1 0 3 0x80 sbwait pflogd 85529 160742 98353 73 3 0x1100090 kqread syslogd 98353 179401 1 0 3 0x100082 sbwait syslogd 97888 242856 1 0 3 0x100080 kqread resolvd 46528 205968 39587 77 3 0x100092 kqread dhcpleased 3721 139886 39587 77 3 0x100092 kqread dhcpleased 39587 320780 1 0 3 0x80 kqread dhcpleased 32363 287293 0 0 3 0x14200 bored smr 19087 341557 0 0 2 0x14200 zerothread 9529 207079 0 0 3 0x14200 aiodoned aiodoned 94388 375665 0 0 3 0x14200 syncer update 13798 457930 0 0 3 0x14200 cleaner cleaner 46951 216169 0 0 3 0x14200 reaper reaper 60858 94700 0 0 3 0x14200 pgdaemon pagedaemon 18878 365417 0 0 3 0x14200 bored viomb 8357 305802 0 0 3 0x40014200 acpi0 acpi0 22522 272492 0 0 7 0x40014200 idle1 6614 213642 0 0 3 0x14200 bored softnet1 88482 354180 0 0 3 0x14200 bored softnet0 9611 66740 0 0 3 0x14200 smrbar systqmp 54313 493074 0 0 3 0x14200 bored systq 64792 494256 0 0 3 0x14200 tmoslp softclockmp 59457 429182 0 0 3 0x40014200 tmoslp softclock 30938 256415 0 0 3 0x40014200 idle0 1 523773 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &cq->cq_mtx r = 0 (0xffff8000299dee30) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375 #3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 #4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] #4 dtclose+0x109 sys/dev/dt/dt_dev.c:239 #5 spec_close+0x466 sys/kern/spec_vnops.c:-1 #6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 #7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] #7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #8 fdrop+0x121 sys/kern/kern_descrip.c:1280 #9 closef+0x192 sys/kern/kern_descrip.c:1264 #10 fdfree+0x116 sys/kern/kern_descrip.c:1195 #11 exit1+0x576 sys/kern/kern_exit.c:215 #12 sys_exit+0x1a sys/kern/kern_exit.c:-1 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #14 Xsyscall+0x128 Process 69652 (syz-executor) thread 0xffff80002a27ad10 (298835) exclusive rrwlock inode r = 0 (0xfffffd80704de7b8) #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 9611 (systqmp) thread 0xffff8000ffffe298 (66740) shared rwlock systqmp r = 0 (0xffffffff837efed8) #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10252 11076K 12621K 166960K 18371 0 pcb 17 16K 17K 166960K 790 0 rtable 275 14K 15K 166960K 1439 0 pf 43 19K 83K 166960K 515 0 ifaddr 44 9K 9K 166960K 306 0 ifgroup 59 2K 3K 166960K 535 0 sysctl 4 1K 9K 166960K 41 0 counters 76 37K 38K 166960K 538 0 ioctlops 0 0K 4K 166960K 2314 0 iov 0 0K 24K 166960K 224 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1593 100K 100K 166960K 5535 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 50 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 184 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 22 187K 244K 166960K 3669 0 sigio 0 0K 0K 166960K 57 0 proc 73 115K 164K 166960K 1506 0 subproc 81 5K 5K 166960K 273 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 354 0 in_multi 87 6K 7K 166960K 452 0 ether_multi 1 0K 0K 166960K 27 0 mrt 2 0K 0K 166960K 38 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 1088 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 16 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 266 171K 192K 166960K 33519 0 UVM aobj 66 94K 94K 166960K 72 0 pinsyscall 47 94K 110K 166960K 5379 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 226 0 NDP 16 0K 1K 166960K 224 0 temp 89 8680K 8792K 166960K 157914 0 kqueue 13 20K 30K 166960K 597 0 SYN cache 2 8K 16K 166960K 3 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 120 450 0 445 5 4 1 3 0 8 0 rtentry 176 446 0 341 5 0 5 5 0 8 0 unpcb 144 3003 0 2984 28 27 1 6 0 8 0 syncache 336 20 0 20 6 6 0 1 0 8 0 tcpqe 32 6 0 6 5 5 0 1 0 8 0 tcpcb 736 1417 0 1409 35 33 2 7 0 8 0 arp 136 80 0 53 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 328 4653 0 4642 39 37 2 12 0 8 0 nd6 152 93 0 72 2 0 2 2 0 8 0 pkpcb 40 37 0 37 4 3 1 1 0 8 1 kcovpl 48 30 0 21 1 0 1 1 0 8 0 mppekey 1024 5 0 5 4 4 0 1 0 8 0 ppxss 1192 161 0 158 1 0 1 1 0 8 0 pppxif 1504 32 0 32 8 8 0 1 0 8 0 pfstscr 40 6 0 6 3 3 0 1 0 8 0 pffrag 232 30 0 17 1 0 1 1 0 482 0 pffrnode 88 23 0 12 1 0 1 1 0 8 0 pffrent 40 187 0 174 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 27 0 27 6 6 0 1 0 8 0 pfanchor 1288 14 0 7 1 0 1 1 0 8 0 pftag 88 2 0 1 2 1 1 1 0 8 0 pfstitem 24 216 0 138 1 0 1 1 0 8 0 pfstkey 128 223 0 143 3 0 3 3 0 8 0 pfstate 448 218 0 141 10 0 10 10 0 8 0 pfrule 1344 39 0 33 2 1 1 2 0 8 0 rttmr 136 10 0 10 6 5 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1870 0 1398 48 18 30 32 0 8 0 art_table 40 1874 0 1398 7 2 5 6 0 8 0 art_node 32 444 0 350 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 10 4 3 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 181 0 171 1 0 1 1 0 8 0 shmpl 112 18 0 0 1 0 1 1 0 8 0 dirhash 1024 45 0 28 3 0 3 3 0 8 0 dino2pl 256 7954 0 6407 97 0 97 97 0 8 0 ffsino 296 7954 0 6407 120 0 120 120 0 8 0 nchpl 144 12674 0 10898 66 0 66 66 0 8 0 rtmask 32 45 0 44 6 5 1 1 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 47524 0 47524 6 5 1 2 0 8 1 percpumem 16 284 0 231 1 0 1 1 0 8 0 vcpupl 3968 47 0 2 6 0 6 6 0 8 0 vmpool 848 51 0 6 5 0 5 5 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 322 0 290 5 2 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 13 0 13 7 7 0 1 0 8 0 scxspl 216 62390 0 62389 15 14 1 8 1 8 0 plimitpl 152 908 0 886 1 0 1 1 0 8 0 sigapl 424 3900 0 3850 8 1 7 7 0 8 0 knotepl 120 777 0 0 22 0 22 22 0 8 0 kqueuepl 224 1238 0 1229 11 10 1 5 0 8 0 pipepl 344 802 0 772 21 17 4 9 0 8 0 fdescpl 528 3869 0 3835 3 0 3 3 0 8 0 filepl 160 29203 0 28961 53 38 15 25 0 8 0 lockfpl 104 1507 0 1503 3 2 1 2 0 8 0 lockfspl 48 549 0 546 1 0 1 1 0 8 0 sessionpl 144 62 0 53 1 0 1 1 0 8 0 pgrppl 48 124 0 106 1 0 1 1 0 8 0 ucredpl 104 4560 0 4546 1 0 1 1 0 8 0 zombiepl 144 3853 0 3850 1 0 1 1 0 8 0 processpl 1232 3900 0 3850 5 0 5 5 0 8 0 procpl 664 9285 0 9224 6 0 6 6 0 8 0 sosppl 176 19 0 19 5 4 1 1 0 8 1 sockpl 752 8240 0 8205 74 69 5 18 0 8 0 mcl64k 65536 12 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 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 93 0 0 7 0 7 7 0 8 0 mtagpl 96 173 0 0 4 0 4 4 0 8 0 mbufpl 256 1351 0 0 78 0 78 78 0 8 0 bufpl 280 23145 0 17009 439 0 439 439 0 8 0 anonpl 32 11552 0 0 93 0 93 93 0 246 0 amapchunkpl 152 114656 0 114133 57 30 27 31 0 158 4 amappl16 200 11924 0 11712 74 62 12 27 0 8 0 amappl15 192 7 0 7 2 2 0 1 0 8 0 amappl14 184 9 0 8 1 0 1 1 0 8 0 amappl13 176 687 0 683 1 0 1 1 0 8 0 amappl12 168 4404 0 4358 3 0 3 3 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 50 0 35 1 0 1 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 31 0 28 1 0 1 1 0 8 0 amappl7 128 167 0 166 1 0 1 1 0 8 0 amappl6 120 559 0 541 1 0 1 1 0 8 0 amappl5 112 91 0 80 1 0 1 1 0 8 0 amappl4 104 622 0 589 1 0 1 1 0 8 0 amappl3 96 23571 0 23454 6 2 4 4 0 8 0 amappl2 88 864 0 798 2 0 2 2 0 8 0 amappl1 80 28646 0 28002 15 0 15 15 0 8 0 amappl 88 31803 0 31626 5 0 5 5 0 92 0 uvmvnodes 80 213 0 0 5 0 5 5 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 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 128 254 0 254 2 2 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 71 0 6 2 0 2 2 0 8 0 uaddrrnd 24 3869 0 3835 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3869 0 3835 1 0 1 1 0 8 0 vmmpekpl 168 30427 0 30352 4 0 4 4 0 8 0 vmmpepl 168 249596 0 247360 146 46 100 112 0 357 0 vmsppl 488 3868 0 3835 5 0 5 5 0 8 0 rwobjpl 80 64676 0 63187 41 7 34 36 0 8 0 pdppl 4096 7847 0 7727 195 73 122 124 0 8 2 pvpl 32 21156 0 0 171 1 170 170 0 265 0 pmappl 256 3919 0 3841 5 0 5 5 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 522 0 143 11 0 11 11 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 witness_checkorder(ffffffff838bc500,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff838bc4f0) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffff8000299dee80,220,ffffffff83434b95) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffff8000299dee80,ffff8000299dee20,220,ffffffff83434b95,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001583000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(11e5f,81,2000,ffff80002a27a7e0) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80002a27a7e0) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80002f001d60) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd800bf902b8,81,fffffd80097fd340,ffff80002a27a7e0) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805fe4a808,ffff80002a27a7e0) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805fe4a808,ffff80002a27a7e0) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805fe4a808,ffff80002a27a7e0) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd805fe4a808,ffff80002a27a7e0) at closef+0x192 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a27a7e0) at fdfree+0x116 sys/kern/kern_descrip.c:1195 exit1(ffff80002a27a7e0,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a27a7e0,ffff80002f0020d0,ffff80002f002020) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002f0020d0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002f0020d0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74e6ef410aa0, count: -17 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp 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 mtx_enter(ffff8000299dee20) at mtx_enter+0x37b sys/kern/kern_lock.c:454 clockintr_dispatch(ffff80002a21ccb0) at clockintr_dispatch+0x401 sys/kern/kern_clockintr.c:215 lapic_clockintr(0,0) at lapic_clockintr+0x51 sys/arch/amd64/amd64/lapic.c:482 Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a 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: -9
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/12/21 00:59 | openbsd | df8f251ef5f9 | e14dbeb9 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/19 02:16 | openbsd | 3f23c8878a83 | e14dbeb9 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/18 04:44 | openbsd | 10e7775f0707 | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/17 19:59 | openbsd | 9c2b8e445a0b | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/17 09:10 | openbsd | 3a6d4b98bde9 | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/17 07:31 | openbsd | 3a6d4b98bde9 | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/17 05:16 | openbsd | 3a6d4b98bde9 | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/17 02:14 | openbsd | 3a6d4b98bde9 | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/15 13:02 | openbsd | 2c50c5af38ad | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/15 04:04 | openbsd | b46de5080dd7 | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/14 19:12 | openbsd | e294fe4a4b1d | a066d2bc | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/09 06:40 | openbsd | bf8f637750de | fc20f974 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/09 03:25 | openbsd | bf8f637750de | fc20f974 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/11/12 22:56 | openbsd | 30ee307006ea | 07e030de | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/11/10 14:02 | openbsd | 129ed0dedc2e | 4e1406b4 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/11/10 12:16 | openbsd | 129ed0dedc2e | 4e1406b4 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/10/04 10:03 | openbsd | 467d022937bc | 770ff59f | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/10/03 03:41 | openbsd | 7cf39aff0fc8 | 770ff59f | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/09/25 07:18 | openbsd | a25aeda82389 | 770ff59f | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/09/24 01:47 | openbsd | d4a733e3e951 | 770ff59f | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/09/23 23:23 | openbsd | d4a733e3e951 | 770ff59f | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/09/22 03:06 | openbsd | 623648cde278 | 67c37560 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/09/13 12:39 | openbsd | 597bb1fc1f2a | e2beed91 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/09/01 23:40 | openbsd | 813b141997c4 | 807a3b61 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/21 07:08 | openbsd | 70b219c460a6 | 0b9605c8 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/19 04:09 | openbsd | b981b677995a | 523f460e | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/17 08:14 | openbsd | fd78d8b282be | 1804e95e | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/12 17:00 | openbsd | ca8bfee27b33 | 22ec1469 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/10 02:10 | openbsd | 6d30732ef287 | 32a0e5ed | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/09 17:16 | openbsd | 86b9fcdd2575 | 32a0e5ed | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/08 19:19 | openbsd | 297fbc8e674e | 32a0e5ed | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/07 10:59 | openbsd | 01075e58a8ba | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/07 00:00 | openbsd | 21888800dc4e | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/02 16:00 | openbsd | d2170a9a220c | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/08/01 12:47 | openbsd | 3b565b651350 | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/07/29 22:00 | openbsd | b403f214b97b | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/07/25 12:18 | openbsd | 55a498f41818 | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/07/22 03:47 | openbsd | 522fe508dc11 | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/07/12 20:27 | openbsd | 2fd78fb00a47 | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/07/11 17:50 | openbsd | 904c37accb58 | 3cda49cf | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/07/06 19:00 | openbsd | 1a059e88663d | 4f67c4ae | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/07/06 00:31 | openbsd | 0168633b2ab2 | 4f67c4ae | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/06/30 00:27 | openbsd | b4d1cb14c459 | fc9d8ee5 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/06/23 15:56 | openbsd | bfd2b5c81cd0 | d6cdfb8a | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/06/21 02:58 | openbsd | f62159b6a996 | d6cdfb8a | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/06/20 03:26 | openbsd | c7ecc8a6a85e | ed3e87f7 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/06/15 19:21 | openbsd | 1a751a5f99c1 | 5f4b362d | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/06/08 08:16 | openbsd | 44b12aca1c11 | 4826c28e | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/06/01 13:48 | openbsd | ae460101462c | 3d2f584d | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/05/27 16:45 | openbsd | 34392d87e208 | 874a1386 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/05/20 01:47 | openbsd | 03d4002980cf | b84f0537 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/05/19 17:25 | openbsd | 2fc058fc36e6 | 27f68995 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/05/18 13:54 | openbsd | 6decc3d5f4d6 | f41472b0 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/05/09 20:18 | openbsd | 0dc0a232ede0 | 77908e5f | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/04/22 03:22 | openbsd | e8eeea37c7e6 | 552876f8 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock |