panic: pool_do_get: shmpl free list modified: page 0xfffffd80646b4000; item addr 0xfffffd80646b4230; offset 0x40=0xfc1ecc7f Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 419935 41628 0 0 0 0 syz-executor *393794 41628 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a0aab) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff838c4530,1,ffff80003c435b08) at pool_do_get+0x5df pool_get(ffffffff838c4530,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bbdd4e8,ffff80003c435d60,c0,ffff80003c435cb0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bbdd4e8,ffff80003c435d60,ffff80003c435cb0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c435d60) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c435d60) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf812752d0f0, 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 0xfffffd80646b4000; item addr 0xfffffd80646b4230; offset 0x40=0xfc1ecc7f ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a0aab) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff838c4530,1,ffff80003c435b08) at pool_do_get+0x5df pool_get(ffffffff838c4530,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bbdd4e8,ffff80003c435d60,c0,ffff80003c435cb0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bbdd4e8,ffff80003c435d60,ffff80003c435cb0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c435d60) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c435d60) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf812752d0f0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c435930 rbx 0xffff8000299dee07 rdx 0xffff800001584340 rcx 0xffff80003bbdd4e8 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc512c13209bd0e11 r11 0xdf84daa52058f1da r12 0xffff8000299dec08 r13 0 r14 0 r15 0x1 rip 0xffffffff813e5f05 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c435920 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=393794 pid=41628 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003bbdc7f0,0xffffffff839c5928 process=0xffff8000fffe5d00 user=0xffff80003c430000, vmspace=0xfffffd80657279b0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82953 370157 2620 0 3 0x80 nanoslp syz-executor 82953 109135 2620 0 3 0x4000080 fifor syz-executor 82953 257746 2620 0 3 0x4000080 fsleep syz-executor 93334 73005 25092 60929 2 0x10 syz-executor 93334 399029 25092 60929 3 0x4000010 biowait syz-executor 82645 240233 12236 0 2 0 syz-executor 82645 43941 12236 0 2 0x4000000 syz-executor 41628 419935 93502 0 7 0 syz-executor *41628 393794 93502 0 7 0x4000000 syz-executor 69311 490651 55811 0 2 0 syz-executor 69311 365777 55811 0 3 0x4000080 bell syz-executor 69311 350807 55811 0 3 0x4000080 fsleep syz-executor 86161 463268 29608 0 3 0x3000 suspend syz-executor 86161 5876 29608 0 3 0x4081000 biowait syz-executor 86161 44690 29608 0 3 0x4081000 fltagain2 syz-executor 86161 104316 29608 0 3 0x4081000 pipecl syz-executor 83977 357649 44943 0 3 0x3000 suspend syz-executor 83977 410300 44943 0 3 0x4081000 biowait syz-executor 83977 31677 44943 0 3 0x4081000 inode syz-executor 25092 56720 14179 0 3 0x82 nanoslp syz-executor 53173 272356 0 0 3 0x14280 nfsidl nfsio 13416 340042 0 0 3 0x14280 nfsidl nfsio 29608 115465 14179 0 3 0x82 nanoslp syz-executor 44943 468285 14179 0 3 0x82 wait syz-executor 12236 182012 14179 0 3 0x82 nanoslp syz-executor 93502 418796 14179 0 3 0x82 nanoslp syz-executor 55811 490767 14179 0 3 0x82 nanoslp syz-executor 2620 466803 14179 0 3 0x82 nanoslp syz-executor 59117 340628 14179 0 3 0x82 wait syz-executor 14179 387235 75683 0 3 0x82 kqread syz-executor 75683 293362 41635 0 3 0x10008a sigsusp ksh 41635 422660 81028 0 3 0x98 kqread sshd-session 81028 361623 91215 0 3 0x92 kqread sshd-session 38234 123040 1 0 3 0x100083 ttyin getty 91215 426045 1 0 3 0x88 kqread sshd 21859 502804 47731 74 3 0x1100092 bpf pflogd 47731 163793 1 0 3 0x80 sbwait pflogd 66177 292699 32043 73 3 0x1100090 kqread syslogd 32043 258436 1 0 3 0x100082 sbwait syslogd 78563 458618 1 0 3 0x100080 kqread resolvd 4412 42594 18657 77 3 0x100092 kqread dhcpleased 76365 280441 18657 77 3 0x100092 kqread dhcpleased 18657 378407 1 0 3 0x80 kqread dhcpleased 5045 7437 0 0 3 0x14200 bored smr 86819 173232 0 0 3 0x14200 pgzero zerothread 49933 366919 0 0 3 0x14200 aiodoned aiodoned 59329 210273 0 0 3 0x14200 syncer update 52452 392153 0 0 3 0x14200 cleaner cleaner 87713 315051 0 0 3 0x14200 reaper reaper 23453 84895 0 0 3 0x14200 pgdaemon pagedaemon 62524 10353 0 0 3 0x14200 bored viomb 73424 279033 0 0 3 0x40014200 acpi0 acpi0 76241 185522 0 0 3 0x40014200 idle1 12895 273429 0 0 3 0x14200 bored softnet1 92100 315394 0 0 3 0x14200 bored softnet0 22884 237175 0 0 3 0x14200 bored systqmp 12245 185143 0 0 3 0x14200 bored systq 43922 62215 0 0 3 0x14200 tmoslp softclockmp 90736 3965 0 0 3 0x40014200 tmoslp softclock 81517 68609 0 0 3 0x40014200 idle0 1 458477 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex shmpl r = 0 (0xffffffff838c4548) #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:581 #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 93334 (syz-executor) thread 0xffff80003bbdc7f0 (399029) exclusive rrwlock inode r = 0 (0xfffffd8074740a28) #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 (0xfffffd8074740338) #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 41628 (syz-executor) thread 0xffff80003bbdd4e8 (393794) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839345c0) #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 (0xffffffff838c4548) #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:581 #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 86161 (syz-executor) thread 0xffff8000fffe9248 (5876) exclusive rrwlock inode r = 0 (0xfffffd806ef545a8) #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 Process 83977 (syz-executor) thread 0xffff80002a261770 (410300) exclusive rrwlock inode r = 0 (0xfffffd8074740c78) #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 11073 12159K 12481K 166960K 13487 0 pcb 18 15K 17K 166960K 335 0 rtable 252 11K 12K 166960K 529 0 pf 36 18K 82K 166960K 148 0 ifaddr 39 6K 7K 166960K 111 0 ifgroup 56 2K 2K 166960K 188 0 sysctl 4 1K 9K 166960K 14 0 counters 70 37K 38K 166960K 212 0 ioctlops 0 0K 4K 166960K 1818 0 iov 0 0K 28K 166960K 119 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1462 92K 92K 166960K 2206 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 44 0 dirhash 12 2K 2K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 1155 0 sigio 0 0K 0K 166960K 14 0 proc 73 115K 196K 166960K 653 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 176 0 in_multi 87 6K 7K 166960K 167 0 ether_multi 1 0K 0K 166960K 12 0 mrt 1 0K 0K 166960K 13 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 719 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 257 160K 177K 166960K 11838 0 UVM aobj 23 12K 12K 166960K 32 0 pinsyscall 43 86K 104K 166960K 2272 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 95 0 NDP 12 0K 2K 166960K 78 0 temp 67 8676K 8752K 166960K 50045 0 kqueue 13 20K 32K 166960K 255 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 120 106 0 103 1 0 1 1 0 8 0 rtentry 176 151 0 49 6 1 5 6 0 8 0 unpcb 144 528 0 506 4 2 2 2 0 8 1 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 284 0 277 2 1 1 2 0 8 0 arp 136 21 0 6 1 0 1 1 0 8 0 inpcb 328 1214 0 1200 14 7 7 7 0 8 5 nd6 152 31 0 7 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 58 0 58 2 1 1 1 0 8 1 pppxif 1504 10 0 10 2 2 0 1 0 8 0 pffrag 232 10 0 0 1 0 1 1 0 482 0 pffrnode 88 8 0 0 1 0 1 1 0 8 0 pffrent 40 15 0 5 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 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfrule 1360 1 0 0 1 0 1 1 0 8 0 rttmr 136 5 0 5 2 2 0 1 0 8 0 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 636 0 216 33 5 28 29 0 8 1 art_table 40 641 0 216 5 0 5 5 0 8 0 art_node 32 151 0 59 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 11 1 0 1 1 0 8 0 semapl 112 41 0 31 1 0 1 1 0 8 0 shmpl 112 23 0 8 1 0 1 1 0 8 0 pool(0xffffffff838c4530:shmpl): page inconsistency: page 0xfffffd80646b4000; 19 on list, 15 missing, 35 items per page dirhash 1024 39 0 22 3 0 3 3 0 8 0 dino2pl 256 3528 0 2015 96 0 96 96 0 8 0 ffsino 296 3528 0 2015 118 0 118 118 0 8 0 nchpl 144 5152 0 3446 64 0 64 64 0 8 0 rtmask 32 7 0 7 2 1 1 1 0 8 1 vnodes 216 4078 0 0 227 0 227 227 0 8 0 namei 1024 17384 0 17383 1 0 1 1 0 8 0 percpumem 16 121 0 71 1 0 1 1 0 8 0 vcpupl 3968 5 0 0 1 0 1 1 0 8 0 vmpool 848 6 0 1 1 0 1 1 0 8 0 kstatmem 264 120 0 94 5 2 3 3 0 8 1 scsiplug 72 6 0 6 2 1 1 1 0 8 1 scxspl 216 40293 0 40290 13 11 2 8 1 8 1 plimitpl 152 353 0 333 1 0 1 1 0 8 0 sigapl 424 1434 0 1384 7 1 6 7 0 8 0 knotepl 120 563 0 0 17 0 17 17 0 8 0 kqueuepl 224 526 0 515 8 3 5 5 0 8 4 pipepl 344 228 0 200 6 3 3 6 0 8 0 fdescpl 528 1412 0 1380 3 0 3 3 0 8 0 filepl 160 8385 0 8152 21 6 15 15 0 8 4 lockfpl 104 459 0 457 1 0 1 1 0 8 0 lockfspl 48 173 0 171 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 72 0 55 1 0 1 1 0 8 0 ucredpl 104 1143 0 1129 1 0 1 1 0 8 0 zombiepl 144 1387 0 1384 1 0 1 1 0 8 0 processpl 1232 1434 0 1384 5 0 5 5 0 8 0 procpl 664 3208 0 3146 7 1 6 7 0 8 0 sosppl 176 2 0 2 1 1 0 1 0 8 0 sockpl 752 1920 0 1881 19 9 10 11 0 8 5 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 112 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 32 0 0 4 0 4 4 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 323 0 0 20 0 20 20 0 8 0 bufpl 280 17911 0 11775 439 0 439 439 0 8 0 anonpl 32 13270 0 0 107 0 107 107 0 246 0 amapchunkpl 152 41163 0 40602 44 15 29 33 0 158 4 amappl16 200 7053 0 6650 55 26 29 32 0 8 7 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 435 0 434 1 0 1 1 0 8 0 amappl12 168 1776 0 1733 3 0 3 3 0 8 0 amappl11 160 7 0 7 1 1 0 1 0 8 0 amappl10 152 78 0 64 1 0 1 1 0 8 0 amappl9 144 274 0 274 1 1 0 1 0 8 0 amappl8 136 51 0 49 1 0 1 1 0 8 0 amappl7 128 87 0 86 1 0 1 1 0 8 0 amappl6 120 309 0 295 1 0 1 1 0 8 0 amappl5 112 73 0 62 1 0 1 1 0 8 0 amappl4 104 419 0 390 1 0 1 1 0 8 0 amappl3 96 7085 0 6982 4 1 3 3 0 8 0 amappl2 88 1518 0 1440 2 0 2 2 0 8 0 amappl1 80 13123 0 12525 15 2 13 15 0 8 0 amappl 88 10950 0 10772 5 0 5 5 0 92 0 uvmvnodes 80 149 0 0 4 0 4 4 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 2 0 2 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 257 0 257 3 2 1 1 0 8 1 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 31 0 9 1 0 1 1 0 8 0 uaddrrnd 24 1412 0 1380 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1412 0 1380 1 0 1 1 0 8 0 vmmpekpl 168 12952 0 12914 3 0 3 3 0 8 0 vmmpepl 168 96783 0 94406 123 11 112 112 0 357 8 vmsppl 488 1411 0 1380 6 1 5 5 0 8 0 rwobjpl 80 29066 0 27572 36 1 35 35 0 8 3 pdppl 4096 2844 0 2767 109 32 77 86 0 8 0 pvpl 32 21985 0 0 178 1 177 177 0 265 0 pmappl 256 1417 0 1381 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 300 0 43 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837c4ff0) 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(ffffffff83933dc0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83933dc0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff800032fc2f00,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: 0x76531f9e6b20, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837c4ff0) 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(ffffffff83933dc0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83933dc0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 intr_handler(ffff800032fc2f00,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: 0x76531f9e6b20, 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(ffffffff833a0aab) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff838c4530,1,ffff80003c435b08) at pool_do_get+0x5df pool_get(ffffffff838c4530,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bbdd4e8,ffff80003c435d60,c0,ffff80003c435cb0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bbdd4e8,ffff80003c435d60,ffff80003c435cb0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c435d60) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c435d60) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf812752d0f0, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a0aab) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff838c4530,1,ffff80003c435b08) at pool_do_get+0x5df pool_get(ffffffff838c4530,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bbdd4e8,ffff80003c435d60,c0,ffff80003c435cb0) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bbdd4e8,ffff80003c435d60,ffff80003c435cb0) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003c435d60) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c435d60) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf812752d0f0, count: -8