kernel: protection fault trap, code=0 Stopped at sys_semop+0x3f9: movzwl 0(%r15),%r12d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace sys_semop(ffff80003c44d218,ffff8000367f2960,ffff8000367f28b0) at sys_semop+0x3f9 sys/kern/sysv_sem.c:602 syscall(ffff8000367f2960) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000367f2960) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb408208c10, count: -3 ddb{1}> show registers rdi 0 rsi 0x8f60 __ALIGN_SIZE+0x7f60 rbp 0xffff8000367f2880 rbx 0xffff80000151c404 rdx 0 rcx 0xffff80003c44d218 rax 0xffff8000299edff0 r8 0x7f7fffffc000 r9 0x1 r10 0x99ca180c64542f4d r11 0x95dfe528a52821d7 r12 0xffff80000151c404 r13 0xffff8f60 r14 0xbead __ALIGN_SIZE+0xaead r15 0xdeafbeaddeafbead rip 0xffffffff8289b799 sys_semop+0x3f9 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff8000367f2760 ss 0x10 sys_semop+0x3f9: movzwl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor) tid=418199 pid=65291 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c44dc58,0xffff8000ffff14b0 process=0xffff80003c424970 user=0xffff8000367ed000, vmspace=0xfffffd806b3f35c0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65291 341702 32086 0 2 0 syz-executor *65291 418199 32086 0 7 0x4000000 syz-executor 65291 386333 32086 0 7 0x4000000 syz-executor 65291 352272 32086 0 2 0x4000000 syz-executor 86031 130825 16208 0 3 0x80 nanoslp syz-executor 86031 375129 16208 0 3 0x4000080 kqsel syz-executor 86031 181320 16208 0 3 0x4000080 fsleep syz-executor 37692 429752 74004 0 3 0x80 nanoslp syz-executor 37692 465838 74004 0 3 0x4000080 fifow syz-executor 37692 205429 74004 0 3 0x4000080 fsleep syz-executor 89097 300781 61477 0 3 0x80 nanoslp syz-executor 89097 167393 61477 0 3 0x4000080 kqread syz-executor 89097 383641 61477 0 3 0x4000080 fsleep syz-executor 32086 251958 79705 0 3 0x82 nanoslp syz-executor 90629 338484 0 0 3 0x14200 bored sosplice 60537 77323 79705 0 3 0x2 biowait syz-executor 74004 352265 79705 0 3 0x82 nanoslp syz-executor 61477 432617 79705 0 3 0x82 nanoslp syz-executor 38714 347054 79705 0 3 0x2 biowait syz-executor 82266 520860 79705 0 3 0x82 wait syz-executor 16208 517701 79705 0 3 0x82 nanoslp syz-executor 92422 421724 79705 0 3 0x2 biowait syz-executor 79705 9360 76513 0 3 0x82 kqread syz-executor 76513 465062 47828 0 3 0x10008a sigsusp ksh 47828 390778 73777 0 3 0x98 kqread sshd-session 73777 462363 69632 0 3 0x92 kqread sshd-session 9700 1266 1 0 3 0x100083 ttyin getty 69632 55160 1 0 3 0x88 kqread sshd 27914 358781 58618 74 3 0x1100092 bpf pflogd 58618 278663 1 0 3 0x80 sbwait pflogd 84173 171371 255 73 3 0x1100090 kqread syslogd 255 360365 1 0 3 0x100082 sbwait syslogd 23578 249706 1 0 3 0x100080 kqread resolvd 61209 163204 33902 77 3 0x100092 kqread dhcpleased 27597 138752 33902 77 3 0x100092 kqread dhcpleased 33902 364209 1 0 3 0x80 kqread dhcpleased 72428 102570 0 0 3 0x14200 bored smr 10780 365738 0 0 2 0x14200 zerothread 96031 372528 0 0 3 0x14200 aiodoned aiodoned 18719 6170 0 0 3 0x14200 syncer update 10930 484837 0 0 3 0x14200 cleaner cleaner 17216 33429 0 0 3 0x14200 reaper reaper 11883 273786 0 0 3 0x14200 pgdaemon pagedaemon 32993 41570 0 0 3 0x14200 bored viomb 19425 328895 0 0 3 0x40014200 acpi0 acpi0 71273 384495 0 0 3 0x40014200 idle1 47217 390326 0 0 3 0x14200 bored softnet3 94410 188785 0 0 3 0x14200 bored softnet2 28789 94490 0 0 3 0x14200 bored softnet1 37553 166208 0 0 3 0x14200 bored softnet0 12655 181679 0 0 3 0x14200 bored systqmp 98366 310533 0 0 3 0x14200 bored systq 97891 453515 0 0 3 0x14200 tmoslp softclockmp 71548 241208 0 0 3 0x40014200 tmoslp softclock 36473 19894 0 0 3 0x40014200 idle0 1 372620 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 65291 (syz-executor) thread 0xffff80003c44d218 (418199) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a00ba8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 yield+0x6a sys/kern/sched_bsd.c:320 #4 malloc+0xe5 sys/kern/kern_malloc.c:174 #5 sys_semop+0x234 sys/kern/sysv_sem.c:564 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 65291 (syz-executor) thread 0xffff8000ffff2f70 (352272) exclusive rwlock futex r = 0 (0xffffffff838b2fe8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sys_futex+0x69 sys/kern/sys_futex.c:98 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 60537 (syz-executor) thread 0xffff8000ffffdc38 (77323) exclusive rrwlock inode r = 0 (0xfffffd806aa0fe20) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806dd61788) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 Process 38714 (syz-executor) thread 0xffff80002a2b59b8 (347054) exclusive rrwlock inode r = 0 (0xfffffd8077f8ac08) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806aa0fac0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 Process 92422 (syz-executor) thread 0xffff80002a2b42a8 (421724) exclusive rrwlock inode r = 0 (0xfffffd806dd3ee30) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ccfe430) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10200 11090K 11415K 166960K 11985 0 pcb 17 14K 16K 166960K 155 0 rtable 193 8K 10K 166960K 521 0 pf 32 17K 81K 166960K 82 0 ifaddr 35 5K 8K 166960K 70 0 ifgroup 51 2K 2K 166960K 111 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 37K 166960K 112 0 ioctlops 0 0K 4K 166960K 1540 0 iov 0 0K 12K 166960K 56 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 89K 166960K 1972 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 23 0 dirhash 12 2K 3K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 102K 166960K 595 0 sigio 0 0K 0K 166960K 3 0 proc 72 91K 128K 166960K 595 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 57 0 in_multi 74 5K 7K 166960K 127 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 491 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 238 179K 194K 166960K 7124 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 40 80K 106K 166960K 1697 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 30 0 NDP 11 0K 2K 166960K 46 0 temp 52 8685K 8753K 166960K 24786 0 kqueue 13 20K 32K 166960K 106 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 61 0 58 1 0 1 1 0 8 0 rtentry 176 134 0 52 6 0 6 6 0 8 0 unpcb 144 449 0 430 5 0 5 5 0 8 4 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 109 0 103 1 0 1 1 0 8 0 arp 128 20 0 6 1 0 1 1 0 8 0 inpcb 384 519 0 508 10 8 2 8 0 8 0 nd6 144 29 0 9 1 0 1 1 0 8 0 pkpcb 40 4 0 4 3 2 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 14 0 14 2 1 1 1 0 8 1 pppxif 1504 4 0 4 2 1 1 1 0 8 1 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 5 0 3 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 pfstitem 24 51 0 21 1 0 1 1 0 8 0 pfstkey 128 51 0 21 2 0 2 2 0 8 0 pfstate 384 51 0 21 5 0 5 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 4 0 1 4 1 3 3 0 8 0 art_heap4 256 533 0 197 30 4 26 30 0 8 3 art_table 32 537 0 198 4 0 4 4 0 8 0 art_node 16 131 0 57 1 0 1 1 0 8 0 sysvmsgpl 40 41 0 2 1 0 1 1 0 8 0 semupl 112 2 0 2 2 1 1 1 0 8 1 semapl 112 20 0 11 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2589 0 1078 95 0 95 95 0 8 0 ffsino 288 2589 0 1078 109 0 109 109 0 8 0 nchpl 144 3375 0 1681 63 0 63 63 0 8 0 rtmask 32 4 0 4 3 3 0 1 0 8 0 uvmvnodes 80 2943 0 0 61 0 61 61 0 8 0 vnodes 216 2943 0 0 164 0 164 164 0 8 0 namei 1024 11432 0 11432 2 1 1 1 0 8 1 percpumem 16 71 0 25 1 0 1 1 0 8 0 kstatmem 264 56 0 34 3 0 3 3 0 8 1 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 10346 0 10343 12 8 4 8 1 8 3 plimitpl 152 119 0 102 1 0 1 1 0 8 0 sigapl 424 886 0 838 7 1 6 7 0 8 0 futexpl 64 6700 0 6696 1 0 1 1 0 8 0 knotepl 120 533 0 0 17 0 17 17 0 8 0 kqueuepl 224 205 0 194 5 2 3 3 0 8 2 pipepl 336 196 0 169 5 2 3 5 0 8 0 fdescpl 520 867 0 838 3 0 3 3 0 8 0 filepl 160 5161 0 4917 26 12 14 15 0 8 3 lockfpl 104 350 0 345 1 0 1 1 0 8 0 lockfspl 48 64 0 60 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 1129 0 1115 1 0 1 1 0 8 0 zombiepl 144 1068 0 1067 1 0 1 1 0 8 0 processpl 1192 886 0 838 5 0 5 5 0 8 0 procpl 656 1701 0 1644 6 0 6 6 0 8 0 srpgc 96 6 0 6 1 0 1 1 0 8 1 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 728 1043 0 1010 17 5 12 12 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 27 0 0 3 0 3 3 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 238 0 0 15 0 15 15 0 8 0 bufpl 280 3176 0 126 218 0 218 218 0 8 0 anonpl 32 6014 0 0 49 0 49 49 0 246 0 amapchunkpl 152 23286 0 22805 34 4 30 30 0 158 7 amappl16 200 2582 0 2552 13 7 6 6 0 8 2 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 113 0 101 1 0 1 1 0 8 0 amappl13 176 9 0 9 2 2 0 1 0 8 0 amappl12 168 1518 0 1489 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 24 0 20 1 0 1 1 0 8 0 amappl7 128 111 0 99 1 0 1 1 0 8 0 amappl6 120 190 0 187 1 0 1 1 0 8 0 amappl5 112 141 0 131 1 0 1 1 0 8 0 amappl4 104 320 0 300 1 0 1 1 0 8 0 amappl3 96 4340 0 4237 5 1 4 4 0 8 0 amappl2 88 647 0 585 2 0 2 2 0 8 0 amappl1 80 10290 0 9681 17 3 14 15 0 8 0 amappl 88 6353 0 6192 5 0 5 5 0 92 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 867 0 838 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 867 0 838 1 0 1 1 0 8 0 vmmpekpl 168 8753 0 8708 3 0 3 3 0 8 0 vmmpepl 168 60284 0 58379 96 2 94 94 0 357 0 vmsppl 480 866 0 838 6 1 5 5 0 8 1 rwobjpl 72 21140 0 17256 73 1 72 72 0 8 0 pdppl 4096 1741 0 1676 109 36 73 87 0 8 8 pvpl 32 13640 0 0 110 0 110 110 0 265 0 pmappl 256 866 0 838 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 404 0 50 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83892ff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:149 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x3d sys/dev/kcov.c:159 doopenat(ffff8000ffff14a0,ffffff9c,200000000240,205,0,ffff80003c445190) at doopenat+0x314 sys/kern/vfs_syscalls.c:1139 syscall(ffff80003c445240) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c445240) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb39655c3d0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at sys_semop+0x3f9: movzwl 0(%r15),%r12d ddb{1}> trace sys_semop(ffff80003c44d218,ffff8000367f2960,ffff8000367f28b0) at sys_semop+0x3f9 sys/kern/sysv_sem.c:602 syscall(ffff8000367f2960) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000367f2960) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdb408208c10, count: -3