o#a7r1"/mb7δO]UIZ_av͎VOnm]K X܊Ql(ȡ;R16]UĈ{ RSnPUۤJl?2QG8\`AC^1kernel: protection fault trap, code=0 Stopped at sys_semop+0x352: movzwl 0x8(%rbx),%r15d 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(ffff8000318082b8,ffff80003c45fef0,ffff80003c45fe40) at sys_semop+0x352 sys/kern/sysv_sem.c:622 syscall(ffff80003c45fef0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45fef0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfdc69df7fa0, count: -3 ddb{1}> show registers rdi 0 rsi 0xb rbp 0xffff80003c45fe10 rbx 0xdeafbeaddeafbead rdx 0 rcx 0xffff8000318082b8 rax 0xffff8000299edff0 r8 0x7f7fffffc000 r9 0x1 r10 0xc71d1b58d3aac732 r11 0xa6bd64b497a3fb27 r12 0xb r13 0xfffffd807471dcb0 r14 0xffff80003c45fef0 r15 0xb rip 0xffffffff81b41d32 sys_semop+0x352 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c45fd20 ss 0x10 sys_semop+0x352: movzwl 0x8(%rbx),%r15d ddb{1}> show proc PROC (syz-executor) tid=202978 pid=11445 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000318094e0,0xffff800031809788 process=0xffff8000358275c0 user=0xffff80003c45a000, vmspace=0xfffffd806ef641f0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 11445 328450 23368 0 7 0 syz-executor *11445 202978 23368 0 7 0x4000000 syz-executor 11445 485456 23368 0 3 0x4000080 fsleep syz-executor 46064 40160 85432 0 2 0 syz-executor 46064 44209 85432 0 3 0x4000000 fdlock syz-executor 46064 53822 85432 0 2 0x4000000 syz-executor 98346 398685 60306 0 3 0x80 nanoslp syz-executor 98346 184715 60306 0 3 0x4000000 smrbar syz-executor 29826 181382 90923 0 3 0x80 nanoslp syz-executor 29826 435959 90923 0 3 0x4000080 kqsel syz-executor 29826 49858 90923 0 3 0x4000080 fsleep syz-executor 43416 311530 0 0 3 0x14280 nfsidl nfsio 59706 508888 0 0 3 0x14280 nfsidl nfsio 90157 423080 0 0 3 0x14280 nfsidl nfsio 5635 390749 0 0 3 0x14280 nfsidl nfsio 54682 2809 0 0 3 0x14280 nfsidl nfsio 37378 132655 0 0 3 0x14280 nfsidl nfsio 53361 34989 0 0 3 0x14280 nfsidl nfsio 40570 24662 0 0 3 0x14280 nfsidl nfsio 27431 479269 0 0 3 0x14280 nfsidl nfsio 31704 104222 0 0 3 0x14280 nfsidl nfsio 16572 224742 0 0 3 0x14280 nfsidl nfsio 87382 338407 0 0 3 0x14280 nfsidl nfsio 99488 277252 0 0 3 0x14280 nfsidl nfsio 10829 82068 0 0 3 0x14280 nfsidl nfsio 47314 386586 0 0 3 0x14280 nfsidl nfsio 50240 368363 0 0 3 0x14280 nfsidl nfsio 93731 1535 0 0 3 0x14280 nfsidl nfsio 65783 165807 0 0 3 0x14280 nfsidl nfsio 80031 175449 0 0 3 0x14280 nfsidl nfsio 66109 130108 0 0 3 0x14280 nfsidl nfsio 66772 196929 0 0 3 0x14200 bored sosplice 60306 158430 71281 0 3 0x82 nanoslp syz-executor 90923 220599 71281 0 3 0x82 nanoslp syz-executor 85432 89985 71281 0 3 0x82 nanoslp syz-executor 68061 36850 71281 0 3 0x2 biowait syz-executor 64450 138604 71281 0 3 0x82 wait syz-executor 23368 72933 71281 0 3 0x82 nanoslp syz-executor 21928 265484 71281 0 3 0x2 biowait syz-executor 32185 430616 71281 0 3 0x82 wait syz-executor 71281 136494 28908 0 3 0x82 kqread syz-executor 28908 224091 31694 0 3 0x10008a sigsusp ksh 31694 253342 5752 0 3 0x98 kqread sshd-session 5752 365802 22444 0 3 0x92 kqread sshd-session 59088 491405 1 0 3 0x100083 ttyin getty 22444 134428 1 0 3 0x88 kqread sshd 30118 197214 61730 74 3 0x1100092 bpf pflogd 61730 325737 1 0 3 0x80 sbwait pflogd 29590 57724 10248 73 3 0x1100090 kqread syslogd 10248 266199 1 0 3 0x100082 sbwait syslogd 10481 343783 1 0 3 0x100080 kqread resolvd 5930 29005 6884 77 3 0x100092 kqread dhcpleased 88976 89715 6884 77 3 0x100092 kqread dhcpleased 6884 370213 1 0 3 0x80 kqread dhcpleased 78790 283016 0 0 3 0x14200 bored smr 68387 254214 0 0 2 0x14200 zerothread 61974 315759 0 0 3 0x14200 aiodoned aiodoned 96669 200599 0 0 3 0x14200 syncer update 70009 137481 0 0 3 0x14200 cleaner cleaner 22316 441622 0 0 3 0x14200 reaper reaper 15183 112759 0 0 3 0x14200 pgdaemon pagedaemon 11547 181552 0 0 3 0x14200 bored viomb 27 101731 0 0 3 0x40014200 acpi0 acpi0 49006 448693 0 0 3 0x40014200 idle1 97755 206542 0 0 3 0x14200 bored softnet7 15436 462244 0 0 3 0x14200 bored softnet6 3393 250222 0 0 3 0x14200 bored softnet5 46792 465476 0 0 3 0x14200 bored softnet4 89726 6483 0 0 3 0x14200 bored softnet3 60025 210306 0 0 3 0x14200 bored softnet2 61244 460424 0 0 3 0x14200 bored softnet1 8391 235497 0 0 3 0x14200 bored softnet0 73004 190976 0 0 3 0x14200 bored systqmp 13617 242234 0 0 3 0x14200 bored systq 57528 111700 0 0 3 0x14200 tmoslp softclockmp 36962 401332 0 0 3 0x40014200 tmoslp softclock 67173 477749 0 0 3 0x40014200 idle0 1 13541 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 11445 (syz-executor) thread 0xffff8000318082b8 (202978) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83871998) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 malloc+0xe3 sys/kern/kern_malloc.c:174 #3 sys_semop+0x22f sys/kern/sysv_sem.c:-1 #4 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 Process 46064 (syz-executor) thread 0xffff800031808d18 (53822) exclusive rwlock fdlock r = 0 (0xffff800035823300) #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 doopenat+0x18e sys/kern/vfs_syscalls.c:1105 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #4 Xsyscall+0x128 Process 98346 (syz-executor) thread 0xffff80002ebf6fc8 (184715) exclusive rwlock clonelk r = 0 (0xffffffff83816fd8) #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 if_clone_destroy+0x67 sys/net/if.c:-1 #3 ifioctl+0x59d sys/net/if.c:2066 #4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #6 Xsyscall+0x128 Process 68061 (syz-executor) thread 0xffff8000ffff3768 (36850) exclusive rrwlock inode r = 0 (0xfffffd806b6cc6a8) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80768f3b38) #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+0xa3 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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 21928 (syz-executor) thread 0xffff80002a2b8018 (265484) exclusive rrwlock inode r = 0 (0xfffffd8069c826b0) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069c820e8) #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+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10214 11025K 11762K 166960K 11879 0 pcb 18 12K 12K 166960K 77 0 rtable 217 8K 8K 166960K 335 0 pf 39 18K 82K 166960K 113 0 ifaddr 42 7K 8K 166960K 84 0 ifgroup 59 2K 3K 166960K 133 0 sysctl 3 1K 9K 166960K 9 0 counters 70 37K 38K 166960K 144 0 ioctlops 0 0K 4K 166960K 1589 0 iov 0 0K 16K 166960K 15 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1405 88K 88K 166960K 1642 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 10 0 dirhash 12 2K 3K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 412 0 sigio 0 0K 0K 166960K 4 0 proc 72 115K 147K 166960K 577 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 17 0 in_multi 88 6K 7K 166960K 107 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 2 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 407 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 236 167K 181K 166960K 5499 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 41 82K 106K 166960K 1517 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 22 0 NDP 13 0K 2K 166960K 56 0 temp 41 8643K 8714K 166960K 22995 0 kqueue 13 20K 28K 166960K 72 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 49 0 46 1 0 1 1 0 8 0 rtentry 176 113 0 24 5 0 5 5 0 8 0 unpcb 144 298 0 280 2 1 1 2 0 8 0 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 72 0 68 1 0 1 1 0 8 0 arp 128 13 0 4 1 0 1 1 0 8 0 inpcb 328 280 0 270 4 2 2 3 0 8 0 nd6 144 19 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 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 29 0 29 1 0 1 1 0 8 1 pppxif 1504 5 0 5 1 0 1 1 0 8 1 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 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 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfstitem 24 53 0 1 1 0 1 1 0 8 0 pfstkey 128 55 0 3 2 0 2 2 0 8 0 pfstate 384 53 0 2 6 0 6 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 477 0 69 28 0 28 28 0 8 1 art_table 40 480 0 69 5 0 5 5 0 8 0 art_node 32 112 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 1 0 1 0 8 0 semapl 112 7 0 2 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2098 0 588 97 1 96 96 0 8 0 ffsino 296 2098 0 588 118 0 118 118 0 8 0 nchpl 144 2661 0 975 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 2353 0 0 49 0 49 49 0 8 0 vnodes 216 2353 0 0 131 0 131 131 0 8 0 namei 1024 8507 0 8507 3 2 1 2 0 8 1 percpumem 16 87 0 37 1 0 1 1 0 8 0 kstatmem 264 84 0 54 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 9048 0 9046 3 2 1 2 1 8 0 plimitpl 152 69 0 51 1 0 1 1 0 8 0 sigapl 424 735 0 662 9 0 9 9 0 8 0 knotepl 120 321 0 0 10 0 10 10 0 8 0 kqueuepl 224 192 0 181 5 0 5 5 0 8 4 pipepl 344 134 0 107 3 0 3 3 0 8 0 fdescpl 528 691 0 661 3 0 3 3 0 8 0 filepl 160 3469 0 3242 15 1 14 14 0 8 3 lockfpl 104 119 0 117 1 0 1 1 0 8 0 lockfspl 48 49 0 47 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 399 0 386 1 0 1 1 0 8 0 zombiepl 144 846 0 844 1 0 1 1 0 8 0 processpl 1248 735 0 662 6 0 6 6 0 8 0 procpl 664 1260 0 1180 8 0 8 8 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 752 636 0 605 6 1 5 5 0 8 1 mcl64k 65536 5 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 125 0 0 16 0 16 16 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 178 0 0 12 0 12 12 0 8 0 bufpl 280 3533 0 122 244 0 244 244 0 8 0 anonpl 32 5612 0 0 46 0 46 46 0 246 0 amapchunkpl 152 17273 0 16789 35 7 28 28 0 158 5 amappl16 200 1238 0 1207 5 2 3 4 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 113 0 101 1 0 1 1 0 8 0 amappl13 176 33 0 33 1 1 0 1 0 8 0 amappl12 168 1351 0 1321 4 2 2 3 0 8 0 amappl11 160 68 0 54 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 260 0 260 1 1 0 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 108 0 96 1 0 1 1 0 8 0 amappl6 120 176 0 173 1 0 1 1 0 8 0 amappl5 112 176 0 167 1 0 1 1 0 8 0 amappl4 104 301 0 279 1 0 1 1 0 8 0 amappl3 96 3174 0 3062 4 0 4 4 0 8 0 amappl2 88 643 0 582 2 0 2 2 0 8 0 amappl1 80 9530 0 8924 15 2 13 15 0 8 0 amappl 88 4748 0 4585 5 0 5 5 0 92 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 128 253 0 253 1 1 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 691 0 661 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 691 0 661 1 0 1 1 0 8 0 vmmpekpl 168 7279 0 7242 3 0 3 3 0 8 0 vmmpepl 168 48806 0 46864 91 0 91 91 0 357 1 vmsppl 488 690 0 661 5 1 4 5 0 8 0 rwobjpl 80 17203 0 13902 69 0 69 69 0 8 0 pdppl 4096 1390 0 1322 108 36 72 88 0 8 4 pvpl 32 13678 0 0 111 0 111 111 0 265 0 pmappl 256 690 0 661 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 286 0 43 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff837d3ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83871790) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83871790) at __mp_lock+0x199 sys/kern/kern_lock.c:165 intr_handler(ffff80003c446c10,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83871790) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83871790) at __mp_lock+0x192 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff83871790,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff83960490,1) at pool_get+0x27e sys/kern/subr_pool.c:591 uvm_mapent_alloc(ffffffff838ca968,1323) at uvm_mapent_alloc+0x3a4 sys/uvm/uvm_map.c:-1 uvm_map(ffffffff838ca968,ffff80003c446fb0,6000,0,ffffffffffffffff,0,5f93470663f4e97f) at uvm_map+0x3bb sys/uvm/uvm_map.c:-1 km_alloc(6000,ffffffff836d73f0,ffffffff83561a48,ffffffff83561ac0) at km_alloc+0x20d sys/uvm/uvm_km.c:746 uvm_uarea_alloc() at uvm_uarea_alloc+0x52 sys/uvm/uvm_glue.c:-1 thread_fork(ffff8000318094e0,fdcad7765d0,fdcc819a400,fdcc819a430,ffff80003c4471a0) at thread_fork+0x170 sys/kern/kern_fork.c:563 sys___tfork(ffff8000318094e0,ffff80003c447250,ffff80003c4471a0) at sys___tfork+0x1b6 sys/kern/kern_fork.c:141 syscall(ffff80003c447250) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c447250) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x752dd8445f40, count: -17 ddb{0}> machine ddbcpu 1 Stopped at sys_semop+0x352: movzwl 0x8(%rbx),%r15d ddb{1}> trace sys_semop(ffff8000318082b8,ffff80003c45fef0,ffff80003c45fe40) at sys_semop+0x352 sys/kern/sysv_sem.c:622 syscall(ffff80003c45fef0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c45fef0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfdc69df7fa0, count: -3