panic: pool_do_get: shmpl free list modified: page 0xfffffd806ba86000; item addr 0xfffffd806ba86e70; offset 0x40=0x67af6ad4 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 250166 53894 32767 0x10 0 0 syz-executor * 21867 67180 32767 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a44c2) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839e7b58,1,ffff8000394c47f8) at pool_do_get+0x5da pool_get(ffffffff839e7b58,1) at pool_get+0x149 shmget_allocate_segment(ffff8000ffff42b8,ffff8000394c4a50,0,ffff8000394c49a0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000ffff42b8,ffff8000394c4a50,ffff8000394c49a0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff8000394c4a50) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000394c4a50) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd2ed06d7a0, 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 0xfffffd806ba86000; item addr 0xfffffd806ba86e70; offset 0x40=0x67af6ad4 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a44c2) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839e7b58,1,ffff8000394c47f8) at pool_do_get+0x5da pool_get(ffffffff839e7b58,1) at pool_get+0x149 shmget_allocate_segment(ffff8000ffff42b8,ffff8000394c4a50,0,ffff8000394c49a0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000ffff42b8,ffff8000394c4a50,ffff8000394c49a0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff8000394c4a50) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000394c4a50) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd2ed06d7a0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000394c4630 rbx 0xffff800029aacdc7 rdx 0xffff800001415840 rcx 0xffff8000ffff42b8 rax 0xffff800029aabff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x59acb8aba27df43b r11 0xa7c2bd8991cec1ea r12 0xffff800029aacbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff817d5225 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000394c4620 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=21867 pid=67180 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=74, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff47d8,0xffff8000ffff4a78 process=0xffff80003a0d94a0 user=0xffff8000394bf000, vmspace=0xfffffd806be2e588 estcpu=24, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53894 250166 95732 32767 7 0x10 syz-executor 78822 92530 41421 0 3 0x2 biowait syz-executor 67180 188283 40810 32767 2 0x10 syz-executor *67180 21867 40810 32767 7 0x4000010 syz-executor 53295 339567 19686 32767 2 0x10 syz-executor 53295 435647 19686 32767 3 0x4000090 fsleep syz-executor 94965 327187 95353 32767 2 0x10 syz-executor 94965 393151 95353 32767 3 0x4000090 kqread syz-executor 71660 436626 90613 32767 3 0x90 nanoslp syz-executor 71660 66561 90613 32767 3 0x4000090 nanoslp syz-executor 71660 111611 90613 32767 3 0x4000090 fsleep syz-executor 71660 337546 90613 32767 3 0x4000090 fsleep syz-executor 15693 356647 0 0 3 0x14200 bored sosplice 19686 258536 71061 32767 3 0x90 nanoslp syz-executor 7269 517420 24105 32767 3 0x90 wait syz-executor 40810 181038 79468 32767 3 0x90 nanoslp syz-executor 95732 176129 5462 32767 3 0x90 nanoslp syz-executor 90613 281045 35800 32767 3 0x90 nanoslp syz-executor 54575 205430 98528 32767 3 0x10 biowait syz-executor 95353 111572 34679 32767 3 0x90 nanoslp syz-executor 71061 85662 41421 0 3 0x82 wait syz-executor 24105 16282 41421 0 3 0x82 wait syz-executor 5462 425329 41421 0 3 0x82 wait syz-executor 98528 36065 41421 0 3 0x82 wait syz-executor 35800 82722 41421 0 3 0x82 wait syz-executor 34679 241892 41421 0 3 0x82 wait syz-executor 79468 439975 41421 0 3 0x82 wait syz-executor 41421 47814 4618 0 3 0x82 kqread syz-executor 4618 463613 60850 0 3 0x10008a sigsusp ksh 60850 25414 52592 0 3 0x98 kqread sshd-session 52592 175977 86289 0 3 0x92 kqread sshd-session 94637 129830 1 0 3 0x100083 ttyin getty 86289 337738 1 0 3 0x88 kqread sshd 18241 303156 1097 73 3 0x1100090 kqread syslogd 1097 207210 1 0 3 0x100082 sbwait syslogd 53829 436578 1 0 3 0x100080 kqread resolvd 40604 474834 51380 77 3 0x100092 kqread dhcpleased 49600 383996 51380 77 3 0x100092 kqread dhcpleased 51380 324751 1 0 3 0x80 kqread dhcpleased 35430 363741 0 0 3 0x14200 bored smr 88860 129573 0 0 2 0x14200 zerothread 78769 416176 0 0 3 0x14200 aiodoned aiodoned 21192 481245 0 0 3 0x14200 syncer update 59032 395786 0 0 3 0x14200 cleaner cleaner 2811 153435 0 0 3 0x14200 reaper reaper 2981 486621 0 0 3 0x14200 pgdaemon pagedaemon 72789 340660 0 0 3 0x14200 bored viomb 59210 337193 0 0 3 0x40014200 acpi0 acpi0 66890 379785 0 0 3 0x40014200 idle1 6354 170334 0 0 3 0x14200 bored softnet3 25520 372291 0 0 3 0x14200 bored softnet2 97799 512200 0 0 3 0x14200 bored softnet1 53475 485045 0 0 3 0x14200 bored softnet0 70165 137765 0 0 3 0x14200 bored systqmp 80700 485160 0 0 3 0x14200 bored systq 22692 16792 0 0 3 0x14200 tmoslp softclockmp 55119 115548 0 0 3 0x40014200 tmoslp softclock 75295 183244 0 0 3 0x40014200 idle0 1 213791 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 (0xffffffff839e7b70) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #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 #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:577 #7 Xsyscall+0x128 Process 53894 (syz-executor) thread 0xffff8000ffff8538 (250166) exclusive rwlock amaplk r = 0 (0xfffffd807e286758) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvm_fault_check+0x54c sys/uvm/uvm_fault.c:846 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806be2e130) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #3 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 Process 78822 (syz-executor) thread 0xffff8000ffff99b8 (92530) exclusive rrwlock inode r = 0 (0xfffffd806b708bd0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 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:3111 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f100760) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3096 #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 Process 67180 (syz-executor) thread 0xffff8000ffff42b8 (21867) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83980940) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #1 syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff839e7b70) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #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 #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:577 #7 Xsyscall+0x128 Process 54575 (syz-executor) thread 0xffff8000ffff8018 (205430) exclusive rrwlock inode r = 0 (0xfffffd806b708310) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 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:3111 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c6080d0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3096 #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 10185 10952K 10966K 166960K 11267 0 pcb 17 12K 12K 166960K 17 0 rtable 216 6K 7K 166960K 357 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 1K 166960K 3 0 counters 62 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 24K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1333 84K 84K 166960K 1366 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 0K 166960K 11 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 23 82K 129K 166960K 255 0 sigio 0 0K 0K 166960K 1 0 proc 58 79K 103K 166960K 480 0 subproc 63 3K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 27 0 in_multi 90 6K 7K 166960K 105 0 ether_multi 1 0K 0K 166960K 1 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 348 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 228 65K 76K 166960K 3640 0 UVM aobj 4 2K 2K 166960K 5 0 pinsyscall 44 88K 114K 166960K 1259 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 10 0 NDP 10 0K 2K 166960K 27 0 temp 35 8636K 8698K 166960K 4932 0 kqueue 14 22K 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 51 0 48 1 0 1 1 0 8 0 rtentry 168 113 0 12 5 0 5 5 0 8 0 unpcb 144 112 0 95 2 0 2 2 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 808 128 0 123 8 0 8 8 0 8 7 arp 120 19 0 2 1 0 1 1 0 8 0 inpcb 376 237 0 228 3 0 3 3 0 8 1 nd6 136 25 0 3 1 0 1 1 0 8 0 kcovpl 48 9 0 2 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 466 0 44 30 0 30 30 0 8 1 art_table 32 467 0 44 4 0 4 4 0 8 0 art_node 16 112 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 1 1 0 1 1 0 8 0 pool(0xffffffff839e7b58:shmpl): page inconsistency: page 0xfffffd806ba86000; 33 on list, 1 missing, 35 items per page dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1697 0 192 95 0 95 95 0 8 0 ffsino 280 1697 0 192 108 0 108 108 0 8 0 nchpl 144 2031 0 352 63 0 63 63 0 8 0 uvmvnodes 80 1787 0 0 37 0 37 37 0 8 0 vnodes 216 1787 0 0 100 0 100 100 0 8 0 namei 1024 6089 0 6087 1 0 1 1 0 8 0 percpumem 16 46 0 1 1 0 1 1 0 8 0 kstatmem 264 22 0 2 2 0 2 2 0 8 0 scxspl 216 6693 0 6691 3 2 1 2 1 8 0 plimitpl 152 122 0 99 2 0 2 2 0 8 1 sigapl 424 526 0 472 8 0 8 8 0 8 0 futexpl 64 1700 0 1697 1 0 1 1 0 8 0 knotepl 120 315 0 0 10 0 10 10 0 8 0 kqueuepl 216 56 0 46 1 0 1 1 0 8 0 pipepl 328 117 0 90 3 0 3 3 0 8 0 fdescpl 504 507 0 472 7 1 6 6 0 8 0 filepl 152 1965 0 1767 10 0 10 10 0 8 1 lockfpl 104 49 0 47 1 0 1 1 0 8 0 lockfspl 48 18 0 16 1 0 1 1 0 8 0 sessionpl 144 24 0 9 1 0 1 1 0 8 0 pgrppl 48 34 0 11 1 0 1 1 0 8 0 ucredpl 104 270 0 252 1 0 1 1 0 8 0 zombiepl 144 473 0 472 1 0 1 1 0 8 0 processpl 1168 526 0 472 5 0 5 5 0 8 0 procpl 656 723 0 663 7 0 7 7 0 8 1 sosppl 168 3 0 3 1 0 1 1 0 8 1 sockpl 688 403 0 375 5 0 5 5 0 8 1 mcl64k 65536 2 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 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 128 0 0 16 0 16 16 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 242 0 0 16 0 16 16 0 8 0 bufpl 280 2496 0 123 170 0 170 170 0 8 0 anonpl 24 125003 0 121581 67 1 66 66 0 184 27 amapchunkpl 152 11683 0 11151 33 0 33 33 0 158 7 amappl16 200 2689 0 2668 22 8 14 22 0 8 11 amappl15 192 14 0 13 1 0 1 1 0 8 0 amappl14 184 101 0 91 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1104 0 1070 2 0 2 2 0 8 0 amappl11 160 74 0 64 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 244 0 244 1 1 0 1 0 8 0 amappl8 136 32 0 28 1 0 1 1 0 8 0 amappl7 128 96 0 86 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 118 0 112 1 0 1 1 0 8 0 amappl4 104 274 0 260 1 0 1 1 0 8 0 amappl3 96 1904 0 1784 4 0 4 4 0 8 0 amappl2 88 611 0 555 2 0 2 2 0 8 0 amappl1 80 8246 0 7708 15 1 14 14 0 8 0 amappl 88 3287 0 3105 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 4 0 1 1 0 1 1 0 8 0 uaddrrnd 24 507 0 472 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 507 0 472 1 0 1 1 0 8 0 vmmpekpl 168 5837 0 5787 3 0 3 3 0 8 0 vmmpepl 168 38525 0 36642 104 0 104 104 0 357 13 vmsppl 456 506 0 472 7 1 6 6 0 8 0 rwobjpl 64 16103 0 13489 47 0 47 47 0 8 0 pdppl 4096 1022 0 944 110 26 84 100 0 8 6 pvpl 32 18698 0 0 152 1 151 151 0 265 0 pmappl 248 506 0 472 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 302 0 29 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837a5ff0) 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(ffffffff83980738) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83980738) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003c5185e0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 sys/dev/kcov.c:153 __mp_lock(ffffffff83980738) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83980738) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80003c5187c0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5187c0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a690fd027a0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff837a5ff0) 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(ffffffff83980738) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83980738) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003c5185e0,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x25 sys/dev/kcov.c:153 __mp_lock(ffffffff83980738) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83980738) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80003c5187c0) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5187c0) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a690fd027a0, count: -10 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(ffffffff833a44c2) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839e7b58,1,ffff8000394c47f8) at pool_do_get+0x5da pool_get(ffffffff839e7b58,1) at pool_get+0x149 shmget_allocate_segment(ffff8000ffff42b8,ffff8000394c4a50,0,ffff8000394c49a0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000ffff42b8,ffff8000394c4a50,ffff8000394c49a0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff8000394c4a50) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000394c4a50) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd2ed06d7a0, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a44c2) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839e7b58,1,ffff8000394c47f8) at pool_do_get+0x5da pool_get(ffffffff839e7b58,1) at pool_get+0x149 shmget_allocate_segment(ffff8000ffff42b8,ffff8000394c4a50,0,ffff8000394c49a0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000ffff42b8,ffff8000394c4a50,ffff8000394c49a0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff8000394c4a50) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000394c4a50) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd2ed06d7a0, count: -8