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witness: lock order reversal: 1st 0xffff8000299bee30 &cq->cq_mtx (&cq->cq_mtx) 2nd 0xffffffff83a4a1c8 &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:1281 #9 closef+0x192 sys/kern/kern_descrip.c:1265 #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 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 ast+0x15c mi_ast sys/sys/syscall_mi.h:252 [inline] #3 ast+0x15c sys/arch/amd64/amd64/trap.c:747 #4 intr_user_exit+0x3c 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(ffffffff83a4a1c8,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83a4a1b8) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffff8000299bee80,220,ffffffff834cb92c) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffff8000299bee80,ffff8000299bee20,220,ffffffff834cb92c,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001669000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff80003c3f6558) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c3f6558) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4017c0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f7a62d8,81,fffffd80097fd2d8,ffff80003c3f6558) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c19eea0,ffff80003c3f6558) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c19eea0,ffff80003c3f6558) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c19eea0,ffff80003c3f6558) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c19eea0,ffff80003c3f6558) at closef+0x192 sys/kern/kern_descrip.c:1265 syscall(ffff80003c401a20) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c401a20) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xefd3ba36cb0, count: -14 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c401490 rbx 0 rdx 0xffff8000015f3780 rcx 0xffff80003c3f6558 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c401370 r9 0x8080808080808080 r10 0x6d9c6ee3acdd3690 r11 0xbe6b39d38d36cf0c r12 0xfffffd800403ce40 r13 0xfffffd80047e7330 r14 0x3 r15 0xffffffff834b72b3 substchar+0x1f5f rip 0xffffffff82669d45 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c401480 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=39841 pid=21809 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=0xffff80003c3f67f0,0xffff80003c3f6a98 process=0xffff80003c3f9d00 user=0xffff80003c3fc000, vmspace=0xfffffd800f263b90 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 14793 404676 21374 0 7 0 syz-executor 14793 310800 21374 0 2 0x4000000 syz-executor 2357 310695 94124 0 2 0 syz-executor 2357 460262 94124 0 3 0x4000080 fsleep syz-executor 21809 299932 45938 0 2 0 syz-executor *21809 39841 45938 0 7 0x4000000 syz-executor 28135 279617 34420 0 2 0 syz-executor 28135 421725 34420 0 3 0x4000080 fsleep syz-executor 11993 387011 4788 0 2 0 syz-executor 11993 437860 4788 0 3 0x4000080 fsleep syz-executor 11993 126139 4788 0 3 0x4000080 fsleep syz-executor 36959 117080 72570 0 2 0 syz-executor 36959 118987 72570 0 3 0x4000080 fsleep syz-executor 40855 151952 63964 0 2 0 syz-executor 40855 113540 63964 0 3 0x4000080 fsleep syz-executor 45938 132711 95568 0 3 0x82 nanoslp syz-executor 61971 56641 95568 0 3 0x2 biowait syz-executor 94124 89618 95568 0 3 0x82 nanoslp syz-executor 72570 268984 95568 0 3 0x82 nanoslp syz-executor 21374 505804 95568 0 3 0x82 nanoslp syz-executor 34420 391513 95568 0 3 0x82 nanoslp syz-executor 63964 143070 95568 0 3 0x82 nanoslp syz-executor 4788 19530 95568 0 3 0x82 nanoslp syz-executor 95568 243334 45468 0 3 0x82 kqread syz-executor 45468 367638 61800 0 3 0x10008a sigsusp ksh 61800 307194 96473 0 3 0x98 kqread sshd-session 96473 99133 7515 0 3 0x92 kqread sshd-session 20277 454032 1 0 3 0x100083 ttyin getty 7515 194856 1 0 3 0x88 kqread sshd 48961 234457 79622 74 3 0x1100092 bpf pflogd 79622 199961 1 0 3 0x80 sbwait pflogd 53604 153694 71334 73 3 0x1100090 kqread syslogd 71334 93242 1 0 3 0x100082 sbwait syslogd 47449 187759 1 0 3 0x100080 kqread resolvd 98473 115573 71865 77 3 0x100092 kqread dhcpleased 17492 152196 71865 77 3 0x100092 kqread dhcpleased 71865 233369 1 0 3 0x80 kqread dhcpleased 43538 146707 0 0 3 0x14200 bored smr 42173 499177 0 0 2 0x14200 zerothread 30960 202486 0 0 3 0x14200 aiodoned aiodoned 58013 45443 0 0 3 0x14200 syncer update 90859 243273 0 0 3 0x14200 cleaner cleaner 61062 488410 0 0 3 0x14200 reaper reaper 20369 289171 0 0 3 0x14200 pgdaemon pagedaemon 68998 230390 0 0 3 0x14200 bored viomb 99469 275876 0 0 3 0x40014200 acpi0 acpi0 24696 357891 0 0 3 0x40014200 idle1 15117 71973 0 0 3 0x14200 bored softnet1 42042 444334 0 0 3 0x14200 bored softnet0 44442 55654 0 0 3 0x14200 bored systqmp 66664 408761 0 0 3 0x14200 bored systq 85289 35222 0 0 3 0x14200 tmoslp softclockmp 77972 172335 0 0 3 0x40014200 tmoslp softclock 84884 6438 0 0 3 0x40014200 idle0 1 82064 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 (0xffff8000299bee30) #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:1281 #9 closef+0x192 sys/kern/kern_descrip.c:1265 #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 Process 21809 (syz-executor) thread 0xffff80003c3f6558 (39841) exclusive rwlock dtlk r = 0 (0xffffffff838c6f38) #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:1281 #8 closef+0x192 sys/kern/kern_descrip.c:1265 #9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83aba240) #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:1281 #3 closef+0x192 sys/kern/kern_descrip.c:1265 #4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #5 Xsyscall+0x128 exclusive mutex &cq->cq_mtx r = 0 (0xffff8000299bee30) #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:1281 #9 closef+0x192 sys/kern/kern_descrip.c:1265 #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 Process 61971 (syz-executor) thread 0xffff8000fffef770 (56641) exclusive rrwlock inode r = 0 (0xfffffd806b6141f0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3143 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ce22d70) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3128 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11074 12209K 12344K 166960K 12350 0 pcb 17 12K 12K 166960K 58 0 rtable 231 7K 7K 166960K 376 0 pf 35 17K 25K 166960K 106 0 ifaddr 41 7K 7K 166960K 48 0 ifgroup 55 2K 2K 166960K 70 0 sysctl 4 1K 9K 166960K 9 0 counters 70 37K 37K 166960K 76 0 ioctlops 0 0K 4K 166960K 1628 0 iov 0 0K 12K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1363 86K 86K 166960K 1626 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 89K 166960K 399 0 proc 72 115K 180K 166960K 565 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 8 0 in_multi 89 6K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 392 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 231 167K 185K 166960K 5354 0 UVM aobj 9 2K 2K 166960K 10 0 pinsyscall 42 84K 104K 166960K 1556 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 12 0K 2K 166960K 31 0 temp 40 9071K 9139K 166960K 23760 0 kqueue 13 20K 28K 166960K 56 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 76 0 73 2 0 2 2 0 8 1 rtentry 176 113 0 9 6 0 6 6 0 8 0 unpcb 144 139 0 122 2 0 2 2 0 8 1 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 36 0 31 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 183 0 175 2 0 2 2 0 8 0 nd6 152 24 0 3 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 1 0 1 1 0 1 1 0 8 1 pfstscr 40 10 0 9 1 0 1 1 0 8 0 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 1 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 3 0 0 1 0 1 1 0 8 0 pfstitem 24 30 0 0 1 0 1 1 0 8 0 pfstkey 128 44 0 14 2 0 2 2 0 8 1 pfstate 448 36 0 7 4 0 4 4 0 8 0 pfrule 1360 43 0 38 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 453 0 40 29 0 29 29 0 8 0 art_table 40 455 0 40 5 0 5 5 0 8 0 art_node 32 113 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 0 1 0 1 1 0 8 0 semapl 112 7 0 1 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2002 0 531 93 0 93 93 0 8 0 ffsino 296 2002 0 531 114 0 114 114 0 8 0 nchpl 144 2571 0 873 64 0 64 64 0 8 0 vnodes 216 2297 0 0 128 0 128 128 0 8 0 namei 1024 7745 0 7744 1 0 1 1 0 8 0 percpumem 16 53 0 3 1 0 1 1 0 8 0 kstatmem 264 32 0 6 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 8977 0 8976 11 3 8 8 1 8 7 plimitpl 152 45 0 27 1 0 1 1 0 8 0 sigapl 424 716 0 669 7 0 7 7 0 8 1 knotepl 120 295 0 0 9 0 9 9 0 8 0 kqueuepl 224 72 0 63 1 0 1 1 0 8 0 pipepl 344 136 0 109 3 0 3 3 0 8 0 fdescpl 528 699 0 668 3 0 3 3 0 8 0 filepl 160 2787 0 2573 13 0 13 13 0 8 4 lockfpl 104 99 0 96 1 0 1 1 0 8 0 lockfspl 48 42 0 39 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 235 0 222 1 0 1 1 0 8 0 zombiepl 144 669 0 669 1 0 1 1 0 8 1 processpl 1232 716 0 669 5 0 5 5 0 8 0 procpl 664 1058 0 1003 6 0 6 6 0 8 1 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 752 409 0 381 7 0 7 7 0 8 3 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 14 0 0 2 0 2 2 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 122 0 0 16 0 16 16 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 237 0 0 15 0 15 15 0 8 0 bufpl 280 3238 0 106 224 0 224 224 0 8 0 anonpl 32 5795 0 0 47 0 47 47 0 246 0 amapchunkpl 152 16773 0 16304 28 0 28 28 0 158 9 amappl16 200 2334 0 2306 5 3 2 5 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 533 0 532 1 0 1 1 0 8 0 amappl13 176 130 0 118 1 0 1 1 0 8 0 amappl12 168 950 0 919 2 0 2 2 0 8 0 amappl11 160 8 0 8 1 1 0 1 0 8 0 amappl10 152 99 0 85 1 0 1 1 0 8 0 amappl9 144 265 0 265 1 1 0 1 0 8 0 amappl8 136 112 0 110 1 0 1 1 0 8 0 amappl7 128 147 0 134 1 0 1 1 0 8 0 amappl6 120 166 0 164 1 0 1 1 0 8 0 amappl5 112 100 0 89 1 0 1 1 0 8 0 amappl4 104 297 0 277 1 0 1 1 0 8 0 amappl3 96 3215 0 3103 4 0 4 4 0 8 0 amappl2 88 544 0 483 2 0 2 2 0 8 0 amappl1 80 11366 0 10772 16 0 16 16 0 8 1 amappl 88 4560 0 4402 5 0 5 5 0 92 1 uvmvnodes 80 121 0 0 3 0 3 3 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 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 1 1 0 1 1 0 8 0 uaddrrnd 24 699 0 668 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 699 0 668 1 0 1 1 0 8 0 vmmpekpl 168 7375 0 7341 2 0 2 2 0 8 0 vmmpepl 168 52967 0 51067 97 0 97 97 0 357 11 vmsppl 488 698 0 668 5 0 5 5 0 8 1 rwobjpl 80 17431 0 16391 27 1 26 26 0 8 1 pdppl 4096 1405 0 1336 99 24 75 83 0 8 6 pvpl 32 14313 0 0 116 0 116 116 0 265 0 pmappl 256 698 0 668 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 281 0 27 8 0 8 8 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(ffffffff83a4a1c8,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 mtx_enter(ffffffff83a4a1b8) at mtx_enter+0x95 sys/kern/kern_lock.c:406 sleep_setup(ffff8000299bee80,220,ffffffff834cb92c) at sleep_setup+0xed sys/kern/kern_synch.c:304 msleep_nsec(ffff8000299bee80,ffff8000299bee20,220,ffffffff834cb92c,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217 dt_ioctl_record_stop(ffff800001669000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589 dtclose(21e5f,81,2000,ffff80003c3f6558) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff80003c3f6558) at dtclose+0x109 sys/dev/dt/dt_dev.c:239 spec_close(ffff80003c4017c0) at spec_close+0x466 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd805f7a62d8,81,fffffd80097fd2d8,ffff80003c3f6558) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c19eea0,ffff80003c3f6558) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c19eea0,ffff80003c3f6558) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c19eea0,ffff80003c3f6558) at fdrop+0x121 sys/kern/kern_descrip.c:1281 closef(fffffd806c19eea0,ffff80003c3f6558) at closef+0x192 sys/kern/kern_descrip.c:1265 syscall(ffff80003c401a20) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c401a20) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xefd3ba36cb0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299bdff0) 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(ffff8000299bee20) at mtx_enter+0x377 sys/kern/kern_lock.c:454 clockintr_dispatch(ffff80002eba5180) 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: 0x78a86ea8bdd0, count: -7
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026/04/03 18:51 | openbsd | a0d451d3ebb4 | 4b3d9a38 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/04/02 14:48 | openbsd | 8eafb9a57fa3 | 4b3d9a38 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/03/26 07:28 | openbsd | 84b7e477fd25 | c6143aac | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/03/25 07:45 | openbsd | 87dc1fa97379 | 35e4ff71 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/03/24 13:58 | openbsd | 7348976a6ac6 | 74e70d19 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/03/19 14:34 | openbsd | e3f28ea82b45 | 0291cd06 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/03/13 11:04 | openbsd | 7210d95da7cb | 2f7f359d | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/03/13 02:01 | openbsd | 7210d95da7cb | 2f7f359d | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/02/07 20:29 | openbsd | 6a5ee414a02d | 018ebef2 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/02/03 12:45 | openbsd | 72466e384590 | 018ebef2 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/02/03 04:52 | openbsd | 2933a3218787 | 018ebef2 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/28 14:33 | openbsd | b766929b796e | 004c195c | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/26 11:41 | openbsd | 4c8dfe351ad4 | a4c52dd6 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/26 03:24 | openbsd | 401b985036af | 55756628 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/25 17:50 | openbsd | f99cc216b56b | 40acda8a | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/25 12:10 | openbsd | f99cc216b56b | 40acda8a | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/21 21:14 | openbsd | bf8f984edd8f | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 2026/01/21 17:57 | openbsd | bf8f984edd8f | 56f88057 | .config | console log | report | [disk image] [bsd.gdb] [kernel image] | ci-openbsd-multicore | witness: reversal: &cq->cq_mtx &sched_lock | |||
| 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 | |||
| 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 |