panic: pool_do_get: shmpl free list modified: page 0xfffffd806c49c000; item addr 0xfffffd806c49c3f0; offset 0x40=0x697f87b0 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *447389 16072 32767 0x10 0x4000000 1K syz-executor 376327 54172 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a29a9) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8396a190,1,ffff80003c442de8) at pool_do_get+0x5df pool_get(ffffffff8396a190,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c41cfb8,ffff80003c443040,114,ffff80003c442f90) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c41cfb8,ffff80003c443040,ffff80003c442f90) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c443040) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c443040) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x45d577bcdb0, count: 7 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: pool_do_get: shmpl free list modified: page 0xfffffd806c49c000; item addr 0xfffffd806c49c3f0; offset 0x40=0x697f87b0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a29a9) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8396a190,1,ffff80003c442de8) at pool_do_get+0x5df pool_get(ffffffff8396a190,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c41cfb8,ffff80003c443040,114,ffff80003c442f90) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c41cfb8,ffff80003c443040,ffff80003c442f90) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c443040) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c443040) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x45d577bcdb0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c442c10 rbx 0xffff8000299dee07 rdx 0xffff8000015478c0 rcx 0xffff80003c41cfb8 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x9d1565f1b34654bc r11 0x771b35ae9e8cffe r12 0xffff8000299dec08 r13 0 r14 0 r15 0x1 rip 0xffffffff82bff745 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c442c00 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=447389 pid=16072 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c41d4e8,0xffffffff838f4c98 process=0xffff80003c40f9e0 user=0xffff80003c43e000, vmspace=0xfffffd806c8583f8 estcpu=24, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16072 397942 34773 32767 2 0x10 syz-executor *16072 447389 34773 32767 7 0x4000010 syz-executor 9285 73995 72839 32767 3 0x3010 suspend syz-executor 9285 305788 72839 32767 3 0x4081010 biowait syz-executor 66438 434617 77168 32767 3 0x90 nanoslp syz-executor 66438 369993 77168 32767 3 0x4000090 ttyout syz-executor 66438 130346 77168 32767 3 0x4000090 fsleep syz-executor 85057 78602 56759 32767 2 0x10 syz-executor 85057 365812 56759 32767 3 0x4000010 getblk syz-executor 54172 376327 55137 32767 7 0x10 syz-executor 54172 247601 55137 32767 3 0x4000090 kqread syz-executor 54172 484365 55137 32767 2 0x4000010 syz-executor 6350 182024 78569 32767 3 0x10 biowait syz-executor 55137 438351 76236 32767 3 0x90 nanoslp syz-executor 77168 369033 35897 32767 3 0x90 nanoslp syz-executor 72839 198765 86782 32767 3 0x90 nanoslp syz-executor 56759 461373 27002 32767 3 0x90 nanoslp syz-executor 50245 70242 92300 32767 3 0x90 nanoslp syz-executor 34773 512003 23118 32767 3 0x90 nanoslp syz-executor 78569 96726 60986 0 3 0x82 wait syz-executor 27002 222285 60986 0 3 0x82 wait syz-executor 86782 30422 60986 0 3 0x82 wait syz-executor 92300 195070 60986 0 3 0x82 wait syz-executor 76236 487358 60986 0 3 0x82 wait syz-executor 23118 188247 60986 0 3 0x82 wait syz-executor 35897 144829 60986 0 3 0x82 wait syz-executor 60986 121135 29363 0 3 0x82 nanoslp syz-executor 29363 460696 13345 0 3 0x10008a sigsusp ksh 13345 449457 18284 0 3 0x98 kqread sshd-session 18284 497750 85304 0 3 0x92 kqread sshd-session 64624 282986 1 0 3 0x100083 ttyin getty 85304 211562 1 0 3 0x88 kqread sshd 2249 342659 14898 73 3 0x1100090 kqread syslogd 14898 276809 1 0 3 0x100082 sbwait syslogd 73706 427843 1 0 3 0x100080 kqread resolvd 16446 207502 11171 77 3 0x100092 kqread dhcpleased 55163 515361 11171 77 3 0x100092 kqread dhcpleased 11171 131062 1 0 3 0x80 kqread dhcpleased 80176 80853 0 0 3 0x14200 bored smr 60250 175318 0 0 2 0x14200 zerothread 81765 395213 0 0 3 0x14200 aiodoned aiodoned 60168 42822 0 0 3 0x14200 syncer update 30489 407277 0 0 3 0x14200 cleaner cleaner 13890 154497 0 0 3 0x14200 reaper reaper 72406 445707 0 0 3 0x14200 pgdaemon pagedaemon 22060 467575 0 0 3 0x14200 bored viomb 86712 68018 0 0 3 0x40014200 acpi0 acpi0 97133 173647 0 0 3 0x40014200 idle1 83204 378906 0 0 3 0x14200 bored softnet1 7730 6858 0 0 3 0x14200 bored softnet0 99125 231793 0 0 3 0x14200 bored systqmp 8940 349095 0 0 3 0x14200 bored systq 30226 423928 0 0 3 0x14200 tmoslp softclockmp 48279 513762 0 0 3 0x40014200 tmoslp softclock 42712 228289 0 0 3 0x40014200 idle0 1 160454 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex shmpl r = 0 (0xffffffff8396a1a8) #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 pool_get+0x124 sys/kern/subr_pool.c:585 #3 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #4 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #5 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #6 Xsyscall+0x128 Process 16072 (syz-executor) thread 0xffff80003c41cfb8 (447389) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838bcd80) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:775 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff8396a1a8) #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 pool_get+0x124 sys/kern/subr_pool.c:585 #3 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #4 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #5 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #6 Xsyscall+0x128 Process 9285 (syz-executor) thread 0xffff80003c41d250 (305788) exclusive rrwlock inode r = 0 (0xfffffd806c6bd450) #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_pwritev+0xe3 sys/kern/vfs_syscalls.c:3396 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 85057 (syz-executor) thread 0xffff8000fffe7248 (365812) exclusive rrwlock inode r = 0 (0xfffffd806c6bd6a0) #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:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c5118f8) #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:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 Process 6350 (syz-executor) thread 0xffff8000fffe6a80 (182024) exclusive rrwlock inode r = 0 (0xfffffd806c6bd7c8) #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:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d194a10) #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:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11049 12016K 12034K 166960K 12143 0 pcb 17 12K 12K 166960K 17 0 rtable 215 6K 7K 166960K 363 0 pf 29 16K 16K 166960K 31 0 ifaddr 38 6K 7K 166960K 44 0 ifgroup 46 2K 2K 166960K 50 0 sysctl 3 1K 9K 166960K 7 0 counters 68 36K 37K 166960K 70 0 ioctlops 0 0K 2K 166960K 33 0 iov 0 0K 20K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1441 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 89 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 22 81K 125K 166960K 333 0 sigio 0 0K 0K 166960K 5 0 proc 58 99K 147K 166960K 498 0 subproc 63 3K 4K 166960K 153 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 45 0 in_multi 88 6K 7K 166960K 109 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 455 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 143K 162K 166960K 4516 0 UVM aobj 16 2K 3K 166960K 17 0 pinsyscall 43 86K 114K 166960K 1409 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 10 0K 2K 166960K 27 0 temp 32 8674K 8738K 166960K 4689 0 kqueue 17 23K 28K 166960K 48 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 59 0 56 1 0 1 1 0 8 0 rtentry 176 112 0 13 6 0 6 6 0 8 1 unpcb 144 186 0 169 4 0 4 4 0 8 3 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 139 0 135 7 0 7 7 0 8 6 arp 136 18 0 2 1 0 1 1 0 8 0 inpcb 328 266 0 257 7 0 7 7 0 8 6 ip6q 72 4 0 2 1 0 1 1 0 8 0 ip6af 40 8 0 6 1 0 1 1 0 8 0 nd6 152 25 0 4 1 0 1 1 0 8 0 kcovpl 48 17 0 10 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 455 0 46 29 0 29 29 0 8 2 art_table 40 456 0 46 5 0 5 5 0 8 0 art_node 32 112 0 22 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 86 0 76 1 0 1 1 0 8 0 shmpl 112 14 0 1 1 0 1 1 0 8 0 pool(0xffffffff8396a190:shmpl): page inconsistency: page 0xfffffd806c49c000; 21 on list, 13 missing, 35 items per page dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1767 0 249 95 0 95 95 0 8 0 ffsino 296 1767 0 249 117 0 117 117 0 8 0 nchpl 144 2179 0 483 63 0 63 63 0 8 0 vnodes 216 1929 0 0 108 0 108 108 0 8 0 namei 1024 6910 0 6908 1 0 1 1 0 8 0 percpumem 16 50 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 7413 0 7411 9 1 8 8 1 8 7 plimitpl 152 113 0 90 2 0 2 2 0 8 1 sigapl 424 606 0 556 7 0 7 7 0 8 1 knotepl 120 362 0 0 11 0 11 11 0 8 0 kqueuepl 224 95 0 84 3 0 3 3 0 8 2 pipepl 344 153 0 126 3 0 3 3 0 8 0 fdescpl 528 590 0 556 4 0 4 4 0 8 1 filepl 160 2741 0 2537 16 0 16 16 0 8 7 lockfpl 104 109 0 106 1 0 1 1 0 8 0 lockfspl 48 15 0 12 1 0 1 1 0 8 0 sessionpl 144 31 0 16 1 0 1 1 0 8 0 pgrppl 48 48 0 26 1 0 1 1 0 8 0 ucredpl 104 285 0 267 1 0 1 1 0 8 0 zombiepl 144 558 0 556 1 0 1 1 0 8 0 processpl 1232 606 0 556 5 0 5 5 0 8 0 procpl 664 889 0 832 7 0 7 7 0 8 1 sosppl 176 6 0 6 1 0 1 1 0 8 1 sockpl 752 517 0 488 17 6 11 17 0 8 8 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 124 0 0 16 0 16 16 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 200 0 0 13 0 13 13 0 8 0 bufpl 280 2621 0 120 179 0 179 179 0 8 0 anonpl 32 6376 0 0 53 1 52 52 0 246 0 amapchunkpl 152 13866 0 13364 29 0 29 29 0 158 8 amappl16 200 2123 0 2091 15 3 12 13 0 8 8 amappl15 192 17 0 17 2 2 0 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 403 0 402 1 0 1 1 0 8 0 amappl12 168 937 0 894 3 0 3 3 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 44 0 34 1 0 1 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 88 0 87 1 0 1 1 0 8 0 amappl6 120 266 0 255 1 0 1 1 0 8 0 amappl5 112 86 0 78 1 0 1 1 0 8 0 amappl4 104 382 0 359 1 0 1 1 0 8 0 amappl3 96 2199 0 2105 3 0 3 3 0 8 0 amappl2 88 711 0 635 2 0 2 2 0 8 0 amappl1 80 9694 0 9145 14 0 14 14 0 8 1 amappl 88 3790 0 3622 5 0 5 5 0 92 0 uvmvnodes 80 101 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 128 253 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 16 0 1 1 0 1 1 0 8 0 uaddrrnd 24 590 0 556 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 590 0 556 1 0 1 1 0 8 0 vmmpekpl 168 6524 0 6475 3 0 3 3 0 8 0 vmmpepl 168 45036 0 43093 94 0 94 94 0 357 4 vmsppl 488 589 0 556 7 1 6 6 0 8 1 rwobjpl 80 15289 0 14348 24 0 24 24 0 8 0 pdppl 4096 1188 0 1112 118 36 82 98 0 8 6 pvpl 32 13179 0 0 108 1 107 108 0 265 0 pmappl 256 589 0 556 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 298 0 39 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837ddff0) 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(ffffffff838bc580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838bc580) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff800039bec9f0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x72ad76fc8710, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837ddff0) 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(ffffffff838bc580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838bc580) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff800039bec9f0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x72ad76fc8710, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a29a9) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8396a190,1,ffff80003c442de8) at pool_do_get+0x5df pool_get(ffffffff8396a190,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c41cfb8,ffff80003c443040,114,ffff80003c442f90) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c41cfb8,ffff80003c443040,ffff80003c442f90) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c443040) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c443040) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x45d577bcdb0, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a29a9) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8396a190,1,ffff80003c442de8) at pool_do_get+0x5df pool_get(ffffffff8396a190,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c41cfb8,ffff80003c443040,114,ffff80003c442f90) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c41cfb8,ffff80003c443040,ffff80003c442f90) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c443040) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c443040) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x45d577bcdb0, count: -8