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witness: lock order reversal: 1st 0xffffffff83819e30 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff838b8ee8 &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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #11 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff838b8ee8,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff838b8ed8) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffffffff83819e80,220,ffffffff83433ce6) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffffffff83819e80,ffffffff83819e20,220,ffffffff83433ce6,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff80000150b000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff8000ffff2d10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000ffff2d10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff8000357f5190) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061554da0,81,fffffd80097fd5b0,ffff8000ffff2d10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c8ea860,ffff8000ffff2d10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c8ea860,ffff8000ffff2d10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c8ea860,ffff8000ffff2d10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c8ea860,ffff8000ffff2d10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff8000357f53f0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000357f53f0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1f813cb62b0, count: -14 ddb{1}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff8000357f4e60 rbx 0 rdx 0xffff800001593600 rcx 0xffff8000ffff2d10 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff8000357f4d40 r9 0x8080808080808080 r10 0xddbfe979aab29d49 r11 0xe9ff4bf0d1346258 r12 0xfffffd8003f50e40 r13 0xfffffd800473ed58 r14 0x3 r15 0xffffffff8341feeb substchar+0xbf4f rip 0xffffffff81595d95 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000357f4e50 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=206264 pid=97209 tcnt=2 stat=onproc flags process=0 proc=4000000<THREAD> runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff27e0,0xffff8000ffff2558 process=0xffff80003c41eb70 user=0xffff8000357f0000, vmspace=0xfffffd806c9657b8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 12961 182238 4778 0 2 0 syz-executor 34928 212334 48432 0 7 0 syz-executor 34928 277681 48432 0 2 0x4000000 syz-executor 97209 232347 22969 0 2 0 syz-executor *97209 206264 22969 0 7 0x4000000 syz-executor 89965 459748 19205 0 2 0 syz-executor 89965 371096 19205 0 3 0x4000080 fsleep syz-executor 89965 117292 19205 0 3 0x4000080 fsleep syz-executor 59739 45855 77714 0 3 0x80 nanoslp syz-executor 59739 376847 77714 0 3 0x4000080 sbwait syz-executor 59739 432639 77714 0 3 0x4000080 sbwait syz-executor 59739 212555 77714 0 3 0x4000080 fsleep syz-executor 41952 74031 78002 0 3 0x3000 suspend syz-executor 41952 106634 78002 0 3 0x4081000 biowait syz-executor 41952 488487 78002 0 3 0x4081000 fltagain2 syz-executor 41952 211515 78002 0 3 0x4081000 pipecl syz-executor 22969 9023 27071 0 3 0x82 nanoslp syz-executor 87608 360496 1 0 3 0x100083 ttyopn getty 26642 427730 0 0 3 0x14200 acct acct 4778 287640 27071 0 3 0x82 nanoslp syz-executor 48432 427954 27071 0 3 0x82 nanoslp syz-executor 9405 520798 27071 0 3 0x82 nanoslp syz-executor 78002 307068 27071 0 3 0x82 nanoslp syz-executor 44793 315320 27071 0 2 0x3 syz-executor 15542 319441 18621 0 3 0x100082 sbwait arp 18621 492939 1 0 3 0x10008a sigsusp sh 77714 314572 27071 0 3 0x82 nanoslp syz-executor 19205 285466 27071 0 3 0x82 nanoslp syz-executor 27071 430932 40216 0 3 0x82 kqread syz-executor 40216 53126 45752 0 3 0x10008a sigsusp ksh 45752 272629 13866 0 3 0x98 kqread sshd-session 13866 514510 31634 0 3 0x92 kqread sshd-session 31634 517260 1 0 3 0x88 kqread sshd 42497 214620 82756 74 3 0x1100092 bpf pflogd 82756 450690 1 0 3 0x80 sbwait pflogd 87776 169649 54246 73 3 0x1100090 kqread syslogd 54246 466875 1 0 3 0x100082 sbwait syslogd 57911 83012 1 0 3 0x100080 kqread resolvd 73601 1762 0 0 3 0x14200 bored smr 73729 276910 0 0 2 0x14200 zerothread 8512 377591 0 0 3 0x14200 aiodoned aiodoned 3205 480082 0 0 3 0x14200 syncer update 83656 86754 0 0 3 0x14200 cleaner cleaner 44096 423173 0 0 3 0x14200 reaper reaper 95690 508261 0 0 3 0x14200 pgdaemon pagedaemon 97892 213181 0 0 3 0x14200 bored viomb 56133 124730 0 0 3 0x40014200 acpi0 acpi0 37499 86437 0 0 3 0x40014200 idle1 13262 248541 0 0 3 0x14200 bored softnet1 62696 355868 0 0 3 0x14200 bored softnet0 29958 448825 0 0 3 0x14200 bored systqmp 53237 264490 0 0 3 0x14200 bored systq 43564 424835 0 0 3 0x14200 tmoslp softclockmp 84508 306018 0 0 3 0x40014200 tmoslp softclock 46348 354346 0 0 3 0x40014200 idle0 1 435221 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &cq->cq_mtx r = 0 (0xffffffff83819e30) #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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 Process 34928 (syz-executor) thread 0xffff800031fd0550 (277681) exclusive rwlock vmmaplk r = 0 (0xfffffd806f5cf4d8) #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+0x42f sys/arch/amd64/amd64/trap.c:632 #7 recall_trap+0x8 Process 97209 (syz-executor) thread 0xffff8000ffff2d10 (206264) exclusive rwlock dtlk r = 0 (0xffffffff83872ef8) #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:292 [inline] #6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615 #7 fdrop+0x121 sys/kern/kern_descrip.c:1280 #8 closef+0x192 sys/kern/kern_descrip.c:1264 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839f0d40) #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:608 #2 fdrop+0x121 sys/kern/kern_descrip.c:1280 #3 closef+0x192 sys/kern/kern_descrip.c:1264 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #5 Xsyscall+0x128 exclusive mutex &cq->cq_mtx r = 0 (0xffffffff83819e30) #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 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 Process 41952 (syz-executor) thread 0xffff800031fd5cb8 (106634) exclusive rrwlock inode r = 0 (0xfffffd807c33a220) #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11091 12179K 12427K 166960K 13901 0 pcb 17 15K 16K 166960K 688 0 rtable 268 15K 15K 166960K 1105 0 pf 44 19K 81K 166960K 380 0 ifaddr 46 9K 9K 166960K 248 0 ifgroup 69 3K 3K 166960K 441 0 sysctl 4 1K 9K 166960K 29 0 counters 78 37K 39K 166960K 670 0 ioctlops 0 0K 4K 166960K 2420 0 iov 0 0K 24K 166960K 258 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1343 84K 85K 166960K 3323 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 15 0K 0K 166960K 262 0 dirhash 12 2K 2K 166960K 69 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 252K 166960K 3030 0 sigio 0 0K 0K 166960K 65 0 proc 68 83K 180K 166960K 1102 0 subproc 81 5K 5K 166960K 163 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 592 0 in_multi 79 5K 6K 166960K 297 0 ether_multi 1 0K 0K 166960K 21 0 mrt 1 0K 0K 166960K 28 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 1012 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 10 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 234 131K 176K 166960K 29288 0 UVM aobj 124 16K 18K 166960K 135 0 pinsyscall 39 78K 107K 166960K 4376 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 223 0 NDP 15 0K 1K 166960K 180 0 temp 83 8684K 8812K 166960K 128903 0 kqueue 8 14K 32K 166960K 613 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 120 426 0 424 5 4 1 3 0 8 0 rtentry 176 292 0 195 5 0 5 5 0 8 0 unpcb 144 2187 0 2175 16 14 2 6 0 8 1 syncache 336 10 0 10 4 4 0 1 0 8 0 tcpqe 32 26 0 26 5 5 0 1 0 8 0 tcpcb 736 812 0 803 12 9 3 7 0 8 0 arp 136 43 0 26 1 0 1 1 0 8 0 inpcb 328 3300 0 3290 32 27 5 13 0 8 2 nd6 152 60 0 36 1 0 1 1 0 8 0 pkpcb 40 26 0 26 6 6 0 1 0 8 0 kcovpl 48 18 0 9 1 0 1 1 0 8 0 ppxss 1192 251 0 250 4 3 1 1 0 8 0 pppxif 1504 24 0 23 6 5 1 1 0 8 0 pffrag 232 61 0 50 1 0 1 1 0 482 0 pffrnode 88 58 0 48 1 0 1 1 0 8 0 pffrent 40 111 0 99 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 pfanchor 1288 4 0 0 1 0 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 6 0 3 1 0 1 1 0 8 0 pfstate 448 3 0 1 1 0 1 1 0 8 0 pfrule 1360 18 0 4 2 0 2 2 0 8 0 rttmr 136 6 0 6 4 3 1 1 0 8 1 art_heap8 4096 7 0 1 7 1 6 6 0 8 0 art_heap4 256 1327 0 907 38 11 27 27 0 8 0 art_table 40 1334 0 908 5 0 5 5 0 8 0 art_node 32 289 0 204 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 2 1 1 1 0 8 1 semupl 112 3 0 3 3 3 0 1 0 8 0 semapl 112 254 0 241 1 0 1 1 0 8 0 shmpl 112 122 0 6 5 1 4 4 0 8 0 dirhash 1024 55 0 38 3 0 3 3 0 8 0 dino2pl 256 7354 0 5821 97 0 97 97 0 8 0 ffsino 296 7354 0 5821 120 1 119 119 0 8 0 nchpl 144 11444 0 9718 65 0 65 65 0 8 0 rtmask 32 28 0 28 3 3 0 1 0 8 0 vnodes 216 4383 0 0 244 0 244 244 0 8 0 namei 1024 39824 0 39824 4 3 1 2 0 8 1 percpumem 16 350 0 296 1 0 1 1 0 8 0 vcpupl 3968 6 0 1 1 0 1 1 0 8 0 vmpool 848 9 0 4 1 0 1 1 0 8 0 kstatmem 264 292 0 258 4 1 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 11 0 11 6 5 1 1 0 8 1 scxspl 216 69247 0 69246 12 11 1 8 1 8 0 plimitpl 152 754 0 736 1 0 1 1 0 8 0 sigapl 424 3296 0 3249 8 0 8 8 0 8 0 knotepl 120 956 0 0 27 0 27 27 0 8 0 kqueuepl 224 1286 0 1278 18 16 2 5 0 8 1 pipepl 344 578 0 547 12 8 4 9 0 8 0 fdescpl 528 3250 0 3220 3 0 3 3 0 8 0 filepl 160 22509 0 22291 38 24 14 18 0 8 1 lockfpl 104 1138 0 1137 2 1 1 2 0 8 0 lockfspl 48 404 0 403 1 0 1 1 0 8 0 sessionpl 144 38 0 30 1 0 1 1 0 8 0 pgrppl 48 102 0 85 1 0 1 1 0 8 0 ucredpl 104 4012 0 4001 1 0 1 1 0 8 0 zombiepl 144 4770 0 4768 1 0 1 1 0 8 0 processpl 1232 3296 0 3249 6 1 5 6 0 8 0 procpl 664 8243 0 8186 9 3 6 8 0 8 0 sosppl 176 16 0 16 5 4 1 1 0 8 1 sockpl 752 6173 0 6149 56 44 12 18 0 8 7 mcl64k 65536 22 0 0 3 1 2 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 130 0 0 17 0 17 17 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 43 0 0 5 0 5 5 0 8 0 mtagpl 96 10 0 0 1 0 1 1 0 8 0 mbufpl 256 808 0 0 50 0 50 50 0 8 0 bufpl 280 28354 0 22218 439 0 439 439 0 8 0 anonpl 32 14371 0 0 116 0 116 116 0 246 0 amapchunkpl 152 102494 0 101909 64 28 36 38 0 158 7 amappl16 200 10627 0 10441 76 62 14 31 0 8 0 amappl15 192 1 0 0 1 0 1 1 0 8 0 amappl14 184 4 0 4 2 1 1 1 0 8 1 amappl13 176 553 0 551 1 0 1 1 0 8 0 amappl12 168 3675 0 3637 3 0 3 3 0 8 0 amappl11 160 4 0 4 2 2 0 1 0 8 0 amappl10 152 47 0 39 1 0 1 1 0 8 0 amappl9 144 258 0 257 1 0 1 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 114 0 113 1 0 1 1 0 8 0 amappl6 120 394 0 381 1 0 1 1 0 8 0 amappl5 112 78 0 69 1 0 1 1 0 8 0 amappl4 104 497 0 466 2 1 1 2 0 8 0 amappl3 96 17923 0 17835 4 1 3 3 0 8 0 amappl2 88 3358 0 3297 2 0 2 2 0 8 0 amappl1 80 22610 0 22070 17 2 15 15 0 8 0 amappl 88 27898 0 27728 6 1 5 5 0 92 0 uvmvnodes 80 187 0 0 4 0 4 4 0 8 0 dma65536 65536 2 0 2 2 2 0 1 0 8 0 dma8192 8192 2 0 2 2 2 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 2 0 2 2 2 0 1 0 8 0 dma256 256 8 0 8 3 2 1 1 0 8 1 dma128 128 255 0 255 3 3 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 72 134 0 11 3 0 3 3 0 8 0 uaddrrnd 24 3250 0 3220 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3250 0 3220 1 0 1 1 0 8 0 vmmpekpl 168 26510 0 26445 4 0 4 4 0 8 0 vmmpepl 168 209490 0 207551 149 44 105 117 0 357 5 vmsppl 488 3249 0 3220 5 0 5 5 0 8 0 rwobjpl 80 54844 0 53522 43 6 37 39 0 8 0 pdppl 4096 6525 0 6453 125 45 80 85 0 8 8 pvpl 32 21980 0 0 177 0 177 177 0 265 0 pmappl 256 3258 0 3224 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 385 0 84 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83818ff0) 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(ffffffff83819e20) at mtx_enter+0x377 sys/kern/kern_lock.c:454 clockintr_dispatch(ffff80003c40d570) 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 end of kernel end trace frame: 0x7b334acecde0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff838b8ee8,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff838b8ed8) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffffffff83819e80,220,ffffffff83433ce6) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffffffff83819e80,ffffffff83819e20,220,ffffffff83433ce6,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff80000150b000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff8000ffff2d10) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000ffff2d10) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff8000357f5190) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8061554da0,81,fffffd80097fd5b0,ffff8000ffff2d10) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c8ea860,ffff8000ffff2d10) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c8ea860,ffff8000ffff2d10) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c8ea860,ffff8000ffff2d10) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806c8ea860,ffff8000ffff2d10) at closef+0x192 sys/kern/kern_descrip.c:1264 syscall(ffff8000357f53f0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000357f53f0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1f813cb62b0, count: -14
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026/01/21 10:28 | openbsd | 5c0c839c3d8f | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/20 14:07 | openbsd | 7d7bacacae3d | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/19 22:33 | openbsd | 665aeba05e03 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/18 15:29 | openbsd | 4409e1965d65 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/18 10:54 | openbsd | 4409e1965d65 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/17 00:20 | openbsd | 8105fbd98be2 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/16 02:16 | openbsd | c600931321c7 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/15 01:26 | openbsd | ac9e191703f1 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/14 21:10 | openbsd | bf518416d64f | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/14 19:41 | openbsd | bf518416d64f | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/14 18:05 | openbsd | bf518416d64f | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/14 13:39 | openbsd | bf518416d64f | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/13 15:31 | openbsd | 67ddd48175b9 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/12 22:41 | openbsd | a9df5e8d0934 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/11 17:39 | openbsd | 294bdc40ca4d | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/11 13:29 | openbsd | 294bdc40ca4d | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/11 09:14 | openbsd | 294bdc40ca4d | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/10 03:01 | openbsd | ee14140d0567 | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/09 12:40 | openbsd | 0f50c032e950 | c1f5c7d0 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/09 00:23 | openbsd | b9d9e3fc96bc | c1f5c7d0 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/08 14:34 | openbsd | b9d9e3fc96bc | c1f5c7d0 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/08 03:45 | openbsd | d77c41cf8f5a | c1f5c7d0 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/08 01:30 | openbsd | d77c41cf8f5a | c1f5c7d0 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/07 06:22 | openbsd | c7117ed52e15 | 15f6fd08 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/07 04:28 | openbsd | c7117ed52e15 | 15f6fd08 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/07 01:26 | openbsd | c7117ed52e15 | 15f6fd08 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/06 12:45 | openbsd | 4459f914e6b0 | 15f6fd08 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/05 20:21 | openbsd | 97968167a1e0 | 917fe602 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/05 14:09 | openbsd | 97968167a1e0 | 917fe602 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/05 11:25 | openbsd | 97968167a1e0 | 917fe602 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/05 10:09 | openbsd | 97968167a1e0 | 917fe602 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/04 17:22 | openbsd | 079c76c73fb6 | e3fbc05e | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/03 05:04 | openbsd | 287000ffa12f | e3fbc05e | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/02 19:57 | openbsd | e29e388b5d06 | af6b70b9 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/02 13:17 | openbsd | e29e388b5d06 | af6b70b9 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/01 13:49 | openbsd | 6a1433bd6d39 | 2733a373 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/30 23:20 | openbsd | e93b8ae725cf | d32f762a | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/30 20:04 | openbsd | e93b8ae725cf | d32f762a | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/30 11:08 | openbsd | 163664d81c58 | 17e6c961 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/30 07:51 | openbsd | 163664d81c58 | 17e6c961 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/29 16:31 | openbsd | 4420759a09aa | 9831da75 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/27 10:43 | openbsd | fed22d3a29d8 | 5dc09de1 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/27 07:06 | openbsd | 5ce3a7f811ea | 5dc09de1 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/26 15:27 | openbsd | 97e1364f97a2 | 5dc09de1 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/26 06:21 | openbsd | 97e1364f97a2 | 5dc09de1 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/25 05:03 | openbsd | 37a2fc69fcf0 | 5dc09de1 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2025/12/24 10:14 | openbsd | 1dc30a6de584 | 5dc09de1 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 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 | |||
| 2025/04/22 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 |