panic: pool_do_get: shmpl free list modified: page 0xfffffd8068269000; item addr 0xfffffd8068269230; offset 0x40=0x7 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 301097 1081 -1 0x10 0 0 syz-executor *281307 1081 -1 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833cf326) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8398ed20,1,ffff80003c47ca68) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8398ed20,1) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000ffff0f88,ffff80003c47ccc0,102,ffff80003c47cc10) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000ffff0f88,ffff80003c47ccc0,ffff80003c47cc10) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80003c47ccc0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47ccc0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x951fe801f40, 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 0xfffffd8068269000; item addr 0xfffffd8068269230; offset 0x40=0x7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833cf326) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8398ed20,1,ffff80003c47ca68) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8398ed20,1) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000ffff0f88,ffff80003c47ccc0,102,ffff80003c47cc10) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000ffff0f88,ffff80003c47ccc0,ffff80003c47cc10) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80003c47ccc0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47ccc0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x951fe801f40, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c47c8a0 rbx 0xffff8000299dedcf rdx 0xffff800001473a80 rcx 0xffff8000ffff0f88 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe3a7ee8ee3f6c36 r11 0x5c89a94a4463a850 r12 0xffff8000299debd0 r13 0 r14 0 r15 0x1 rip 0xffffffff81f714c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c47c890 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=281307 pid=1081 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff0548,0xffffffff838c1378 process=0xffff8000377e3408 user=0xffff80003c477000, vmspace=0xfffffd806bec8018 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1081 301097 80774 -1 7 0x10 syz-executor * 1081 281307 80774 -1 7 0x4000010 syz-executor 52364 377967 94289 0 3 0x80 nanoslp syz-executor 52364 95778 94289 0 3 0x4000080 kqsel syz-executor 52364 257573 94289 0 3 0x4000080 fsleep syz-executor 67839 343297 63007 0 3 0x80 nanoslp syz-executor 67839 123806 63007 0 3 0x4000080 kqread syz-executor 7483 171069 65000 0 3 0x80 nanoslp syz-executor 7483 260329 65000 0 3 0x4000080 kqsel syz-executor 7483 347150 65000 0 3 0x4000080 fsleep syz-executor 32989 42179 0 0 3 0x14200 bored sosplice 65000 54240 13282 0 3 0x82 nanoslp syz-executor 80774 455825 13282 0 3 0x82 nanoslp syz-executor 63007 443450 13282 0 3 0x82 nanoslp syz-executor 24704 270975 13282 0 3 0x82 wait syz-executor 29184 113615 13282 0 3 0x2 biowait syz-executor 94289 277179 13282 0 3 0x82 nanoslp syz-executor 28346 116714 13282 0 3 0x82 nanoslp syz-executor 84103 462418 13282 0 3 0x2 biowait syz-executor 13282 12952 446 0 3 0x82 kqread syz-executor 446 333379 2676 0 3 0x10008a sigsusp ksh 2676 126287 35015 0 3 0x98 kqread sshd-session 35015 426139 22156 0 3 0x92 kqread sshd-session 15377 445819 1 0 3 0x100083 ttyin getty 22156 86514 1 0 3 0x88 kqread sshd 58742 450407 22447 74 3 0x1100092 bpf pflogd 22447 340978 1 0 3 0x80 sbwait pflogd 69946 523217 82425 73 3 0x1100090 kqread syslogd 82425 284004 1 0 3 0x100082 sbwait syslogd 40118 521884 1 0 3 0x100080 kqread resolvd 16224 327853 60426 77 3 0x100092 kqread dhcpleased 57726 62819 60426 77 3 0x100092 kqread dhcpleased 60426 344051 1 0 3 0x80 kqread dhcpleased 94470 382086 0 0 3 0x14200 bored smr 70840 138483 0 0 3 0x14200 pgzero zerothread 71106 130441 0 0 3 0x14200 aiodoned aiodoned 9336 284760 0 0 3 0x14200 syncer update 18366 335887 0 0 3 0x14200 cleaner cleaner 4339 17532 0 0 3 0x14200 reaper reaper 42445 20556 0 0 3 0x14200 pgdaemon pagedaemon 14194 33232 0 0 3 0x14200 bored viomb 94557 205394 0 0 3 0x40014200 acpi0 acpi0 25925 172272 0 0 3 0x40014200 idle1 70576 93242 0 0 3 0x14200 bored softnet3 33605 475330 0 0 3 0x14200 bored softnet2 60978 480190 0 0 3 0x14200 bored softnet1 38709 100003 0 0 3 0x14200 bored softnet0 34739 328414 0 0 3 0x14200 bored systqmp 31747 201112 0 0 3 0x14200 bored systq 80649 485170 0 0 3 0x14200 tmoslp softclockmp 27134 235485 0 0 3 0x40014200 tmoslp softclock 20839 172931 0 0 3 0x40014200 idle0 1 314096 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex shmpl r = 0 (0xffffffff8398ed38) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pool_get+0x10b sys/kern/subr_pool.c:583 #4 shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 1081 (syz-executor) thread 0xffff8000ffff0f88 (281307) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83961eb8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #1 syscall+0xae6 sys/arch/amd64/amd64/trap.c:579 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff8398ed38) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pool_get+0x10b sys/kern/subr_pool.c:583 #4 shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 29184 (syz-executor) thread 0xffff80002a2ab210 (113615) exclusive rrwlock inode r = 0 (0xfffffd8068243ac0) #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:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd 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: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:1864 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806de1a1d0) #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:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #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:1864 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #13 Xsyscall+0x128 Process 84103 (syz-executor) thread 0xffff8000ffff27c0 (462418) exclusive rrwlock inode r = 0 (0xfffffd8068243f40) #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: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:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807aeb8550) #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:527 #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10248 11155K 11411K 166960K 12030 0 pcb 20 14K 16K 166960K 103 0 rtable 142 5K 7K 166960K 546 0 pf 33 17K 21K 166960K 87 0 ifaddr 33 5K 7K 166960K 65 0 ifgroup 51 2K 2K 166960K 103 0 sysctl 1 1K 9K 166960K 6 0 counters 64 36K 37K 166960K 102 0 ioctlops 0 0K 4K 166960K 1535 0 iov 0 0K 16K 166960K 26 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1399 88K 89K 166960K 1927 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 10 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 20 0 dirhash 15 2K 3K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 110K 166960K 643 0 sigio 1 0K 0K 166960K 40 0 proc 73 91K 128K 166960K 608 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 85 0 in_multi 61 4K 7K 166960K 136 0 ether_multi 1 0K 0K 166960K 7 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 295 1314K 1314K 166960K 295 0 exec 0 0K 1K 166960K 421 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 254 179K 188K 166960K 7543 0 UVM aobj 14 2K 2K 166960K 16 0 pinsyscall 41 82K 106K 166960K 1734 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 33 0 NDP 11 0K 1K 166960K 42 0 temp 50 8664K 8730K 166960K 25040 0 kqueue 15 24K 30K 166960K 112 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 68 0 65 1 0 1 1 0 8 0 rtentry 176 158 0 98 5 0 5 5 0 8 0 unpcb 144 434 0 414 2 0 2 2 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 450 0 444 17 8 9 17 0 8 8 arp 128 19 0 7 1 0 1 1 0 8 0 inpcb 384 816 0 803 15 5 10 15 0 8 7 nd6 144 26 0 14 1 0 1 1 0 8 0 pkpcb 40 10 0 10 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 0 1 1 0 8 1 ppxss 1192 11 0 11 1 0 1 1 0 8 1 pppxif 1504 2 0 2 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 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 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 50 0 11 1 0 1 1 0 8 0 pfstkey 128 52 0 13 2 0 2 2 0 8 0 pfstate 384 51 0 12 5 0 5 5 0 8 0 pfrule 1344 22 0 16 2 1 1 2 0 8 0 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 546 0 267 31 2 29 31 0 8 4 art_table 32 548 0 267 4 0 4 4 0 8 0 art_node 16 122 0 68 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 5 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 13 0 2 1 0 1 1 0 8 0 pool(0xffffffff8398ed20:shmpl): page inconsistency: page 0xfffffd8068269000; 23 on list, 11 missing, 35 items per page dirhash 1024 26 0 7 3 0 3 3 0 8 0 dino2pl 256 2585 0 1084 95 0 95 95 0 8 0 ffsino 288 2585 0 1084 109 0 109 109 0 8 0 nchpl 144 3481 0 1790 63 0 63 63 0 8 0 uvmvnodes 80 2959 0 0 61 0 61 61 0 8 0 vnodes 216 2959 0 0 165 0 165 165 0 8 0 namei 1024 11913 0 11912 2 1 1 2 0 8 0 percpumem 16 66 0 19 1 0 1 1 0 8 0 kstatmem 264 56 0 30 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 5 0 5 1 0 1 1 0 8 1 scxspl 216 10646 0 10644 10 2 8 8 1 8 7 plimitpl 152 146 0 129 1 0 1 1 0 8 0 sigapl 424 941 0 892 8 2 6 7 0 8 0 knotepl 120 321 0 0 10 0 10 10 0 8 0 kqueuepl 224 203 0 190 3 0 3 3 0 8 2 pipepl 336 185 0 156 5 2 3 5 0 8 0 fdescpl 520 921 0 891 3 0 3 3 0 8 0 filepl 160 5701 0 5466 20 2 18 20 0 8 6 lockfpl 104 246 0 244 2 0 2 2 0 8 1 lockfspl 48 109 0 107 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 37 0 20 1 0 1 1 0 8 0 ucredpl 104 1058 0 1043 1 0 1 1 0 8 0 zombiepl 144 894 0 892 1 0 1 1 0 8 0 processpl 1208 941 0 892 5 0 5 5 0 8 0 procpl 656 1815 0 1760 8 2 6 7 0 8 0 srpgc 96 8 0 8 1 0 1 1 0 8 1 sosppl 168 5 0 5 2 1 1 1 0 8 1 sockpl 728 1348 0 1311 15 3 12 15 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 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 30 0 0 4 0 4 4 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 559 0 0 35 0 35 35 0 8 0 bufpl 280 3402 0 124 235 0 235 235 0 8 0 anonpl 32 10547 0 0 86 1 85 85 0 246 0 amapchunkpl 152 24092 0 23485 33 1 32 32 0 158 4 amappl16 200 2802 0 2709 20 3 17 18 0 8 8 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 112 0 100 1 0 1 1 0 8 0 amappl13 176 12 0 12 2 2 0 1 0 8 0 amappl12 168 1570 0 1540 4 2 2 3 0 8 0 amappl11 160 69 0 55 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 256 0 256 1 1 0 1 0 8 0 amappl8 136 32 0 29 1 0 1 1 0 8 0 amappl7 128 123 0 109 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 127 0 117 1 0 1 1 0 8 0 amappl4 104 327 0 307 1 0 1 1 0 8 0 amappl3 96 4679 0 4569 4 0 4 4 0 8 0 amappl2 88 647 0 583 2 0 2 2 0 8 0 amappl1 80 10516 0 9920 16 1 15 15 0 8 1 amappl 88 6758 0 6583 5 0 5 5 0 92 0 dma16384 16384 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 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 15 0 2 1 0 1 1 0 8 0 uaddrrnd 24 921 0 891 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 921 0 891 1 0 1 1 0 8 0 vmmpekpl 168 9171 0 9130 3 0 3 3 0 8 0 vmmpepl 168 63416 0 61394 105 0 105 105 0 357 8 vmsppl 480 920 0 891 5 0 5 5 0 8 1 rwobjpl 72 21789 0 17807 73 0 73 73 0 8 0 pdppl 4096 1849 0 1782 99 28 71 85 0 8 4 pvpl 32 17557 0 0 143 1 142 142 0 265 0 pmappl 256 920 0 891 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 430 0 44 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838b9ff0) 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(ffffffff83961cb0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83961cb0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003c40ebb0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x77fabee49f30, count: 9 ddb{0}> trace x86_ipi_db(ffffffff838b9ff0) 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(ffffffff83961cb0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83961cb0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003c40ebb0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x77fabee49f30, 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(ffffffff833cf326) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8398ed20,1,ffff80003c47ca68) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8398ed20,1) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000ffff0f88,ffff80003c47ccc0,102,ffff80003c47cc10) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000ffff0f88,ffff80003c47ccc0,ffff80003c47cc10) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80003c47ccc0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47ccc0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x951fe801f40, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833cf326) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8398ed20,1,ffff80003c47ca68) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8398ed20,1) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000ffff0f88,ffff80003c47ccc0,102,ffff80003c47cc10) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000ffff0f88,ffff80003c47ccc0,ffff80003c47cc10) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80003c47ccc0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c47ccc0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x951fe801f40, count: -8