login: panic: pool_do_get: shmpl free list modified: page 0xfffffd8061606000; item addr 0xfffffd8061606b60; offset 0x40=0x6839d0dc Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *433161 29285 32767 0x10 0x4000000 1K syz-executor 144751 65439 32767 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d2bfc) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8390bff8,2,ffff80002a37cae8) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8390bff8,2) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000fffe0f98,ffff80002a37cd40,104,ffff80002a37cc90) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000fffe0f98,ffff80002a37cd40,ffff80002a37cc90) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80002a37cd40) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a37cd40) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf97ad9f4050, 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 0xfffffd8061606000; item addr 0xfffffd8061606b60; offset 0x40=0x6839d0dc ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d2bfc) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8390bff8,2,ffff80002a37cae8) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8390bff8,2) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000fffe0f98,ffff80002a37cd40,104,ffff80002a37cc90) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000fffe0f98,ffff80002a37cd40,ffff80002a37cc90) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80002a37cd40) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a37cd40) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf97ad9f4050, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a37c920 rbx 0xffff8000299dedd7 rdx 0xffff80000143cfc0 rcx 0xffff8000fffe0f98 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc242fa5ef15116a1 r11 0x5e06f8e4b6d66b34 r12 0xffff8000299debd8 r13 0 r14 0 r15 0x1 rip 0xffffffff831275d5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a37c910 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=433161 pid=29285 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=57, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffe1c68,0xffff8000fffe0d18 process=0xffff8000fffe5380 user=0xffff80002a377000, vmspace=0xfffffd806c38f7a8 estcpu=7, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26156 524047 71487 0 2 0 syz-executor 72417 160103 77362 32767 2 0x10 syz-executor 72417 98966 77362 32767 3 0x4000090 fsleep syz-executor 28826 346447 79310 32767 2 0x10 syz-executor 29285 4421 41498 32767 2 0x10 syz-executor 29285 274729 41498 32767 2 0x4000090 syz-executor *29285 433161 41498 32767 7 0x4000010 syz-executor 65439 50430 22939 32767 2 0x10 syz-executor 65439 144751 22939 32767 7 0x4000010 syz-executor 65439 34570 22939 32767 3 0x4000090 fsleep syz-executor 71487 382666 64889 0 3 0x82 wait syz-executor 38301 221208 0 0 3 0x14200 bored sosplice 22939 378221 26500 32767 3 0x90 nanoslp syz-executor 41498 187476 1717 32767 2 0xc90 syz-executor 83725 388662 92877 32767 2 0x10 syz-executor 77362 496331 35108 32767 2 0xc90 syz-executor 79310 412432 12581 32767 2 0xc90 syz-executor 96219 72723 16914 32767 2 0xc90 syz-executor 37478 438656 16417 32767 2 0xc90 syz-executor 16417 470219 64889 0 3 0x82 wait syz-executor 26500 335524 64889 0 3 0x82 wait syz-executor 16914 470515 64889 0 3 0x82 wait syz-executor 1717 97505 64889 0 3 0x82 wait syz-executor 35108 504523 64889 0 3 0x82 wait syz-executor 12581 257692 64889 0 3 0x82 wait syz-executor 92877 369123 64889 0 3 0x82 wait syz-executor 64889 117749 46696 0 3 0x82 kqread syz-executor 46696 370596 94394 0 3 0x10008a sigsusp ksh 94394 376000 22703 0 3 0x98 kqread sshd-session 22703 161463 92897 0 3 0x92 kqread sshd-session 76088 218832 1 0 3 0x100083 ttyin getty 92897 227384 1 0 3 0x88 kqread sshd 99573 476101 63228 73 3 0x1100090 kqread syslogd 63228 44947 1 0 3 0x100082 sbwait syslogd 79978 516588 1 0 3 0x100080 kqread resolvd 32735 513389 95391 77 3 0x100092 kqread dhcpleased 99272 267260 95391 77 3 0x100092 kqread dhcpleased 95391 508432 1 0 3 0x80 kqread dhcpleased 64065 286312 0 0 3 0x14200 bored smr 48158 485604 0 0 2 0x14200 zerothread 52850 497257 0 0 3 0x14200 aiodoned aiodoned 89203 504398 0 0 3 0x14200 syncer update 31462 119799 0 0 3 0x14200 cleaner cleaner 69599 343346 0 0 3 0x14200 reaper reaper 73343 45595 0 0 3 0x14200 pgdaemon pagedaemon 47666 217382 0 0 3 0x14200 bored viomb 58735 257211 0 0 3 0x40014200 acpi0 acpi0 46098 81245 0 0 3 0x40014200 idle1 95758 321988 0 0 3 0x14200 bored softnet3 10381 348062 0 0 3 0x14200 bored softnet2 13387 338634 0 0 3 0x14200 bored softnet1 73663 486682 0 0 3 0x14200 bored softnet0 35673 245687 0 0 3 0x14200 bored systqmp 48682 479949 0 0 3 0x14200 bored systq 44624 378467 0 0 3 0x14200 tmoslp softclockmp 47798 75244 0 0 3 0x40014200 tmoslp softclock 34512 374079 0 0 3 0x40014200 idle0 1 386086 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 (0xffffffff8390c010) #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+0x1ad sys/kern/kern_lock.c:295 #2 mtx_enter+0x62 sys/kern/kern_lock.c:252 #3 pool_get+0x10b sys/kern/subr_pool.c:578 #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 29285 (syz-executor) thread 0xffff8000fffe0f98 (433161) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8397fa70) #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 (0xffffffff8390c010) #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+0x1ad sys/kern/kern_lock.c:295 #2 mtx_enter+0x62 sys/kern/kern_lock.c:252 #3 pool_get+0x10b sys/kern/subr_pool.c:578 #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 83725 (syz-executor) thread 0xffff8000fffeb4a8 (388662) exclusive rrwlock inode r = 0 (0xfffffd806d3a12e0) #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+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #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 (0xfffffd806c7b6f70) #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+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #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 10188 10953K 10966K 166960K 11268 0 pcb 17 12K 12K 166960K 17 0 rtable 216 6K 6K 166960K 361 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 9 0 counters 66 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 31 0 iov 0 0K 16K 166960K 13 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 84K 166960K 1407 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 140 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 24 89K 125K 166960K 282 0 sigio 0 0K 0K 166960K 8 0 proc 59 91K 127K 166960K 489 0 subproc 72 4K 4K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 18 0 in_multi 88 6K 7K 166960K 107 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 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 376 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 238 151K 169K 166960K 3992 0 UVM aobj 9 2K 3K 166960K 11 0 pinsyscall 45 90K 110K 166960K 1329 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 14 0 NDP 10 0K 2K 166960K 27 0 temp 41 8683K 8747K 166960K 4368 0 kqueue 13 20K 24K 166960K 33 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 50 0 47 1 0 1 1 0 8 0 rtentry 176 113 0 12 6 0 6 6 0 8 0 unpcb 144 193 0 170 4 0 4 4 0 8 3 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 183 0 174 8 0 8 8 0 8 6 arp 128 18 0 2 1 0 1 1 0 8 0 inpcb 384 420 0 408 9 0 9 9 0 8 6 nd6 144 26 0 3 1 0 1 1 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 456 0 44 29 0 29 29 0 8 2 art_table 32 457 0 44 4 0 4 4 0 8 0 art_node 16 112 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 5 1 0 1 1 0 8 0 semapl 112 138 0 128 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 pool(0xffffffff8390bff8:shmpl): page inconsistency: page 0xfffffd8061606000; 28 on list, 6 missing, 35 items per page dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1732 0 219 95 0 95 95 0 8 0 ffsino 288 1732 0 219 109 0 109 109 0 8 0 nchpl 144 2105 0 421 63 0 63 63 0 8 0 uvmvnodes 80 1858 0 0 38 0 38 38 0 8 0 vnodes 216 1858 0 0 104 0 104 104 0 8 0 namei 1024 6591 0 6591 2 0 2 2 0 8 2 percpumem 16 49 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 6670 0 6670 3 2 1 2 1 8 1 plimitpl 152 64 0 40 2 0 2 2 0 8 0 sigapl 424 557 0 502 9 1 8 8 0 8 0 knotepl 120 344 0 0 11 0 11 11 0 8 0 kqueuepl 224 47 0 37 1 0 1 1 0 8 0 pipepl 336 129 0 101 3 0 3 3 0 8 0 fdescpl 520 538 0 502 4 0 4 4 0 8 0 filepl 160 2422 0 2206 13 0 13 13 0 8 3 lockfpl 104 30 0 28 1 0 1 1 0 8 0 lockfspl 48 15 0 13 1 0 1 1 0 8 0 sessionpl 144 30 0 15 1 0 1 1 0 8 0 pgrppl 48 46 0 23 1 0 1 1 0 8 0 ucredpl 104 234 0 216 1 0 1 1 0 8 0 zombiepl 144 504 0 502 1 0 1 1 0 8 0 processpl 1240 557 0 502 5 0 5 5 0 8 0 procpl 656 777 0 717 8 1 7 7 0 8 0 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 728 666 0 628 12 0 12 12 0 8 7 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 121 0 0 16 0 16 16 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 269 0 0 17 0 17 17 0 8 0 bufpl 280 2442 0 112 167 0 167 167 0 8 0 anonpl 32 5423 0 0 44 0 44 44 0 246 0 amapchunkpl 152 12247 0 11719 32 0 32 32 0 158 9 amappl16 200 1913 0 1885 5 2 3 5 0 8 1 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 153 0 143 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1150 0 1116 3 0 3 3 0 8 1 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 243 0 243 1 1 0 1 0 8 0 amappl8 136 42 0 41 1 0 1 1 0 8 0 amappl7 128 108 0 98 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 117 0 110 1 0 1 1 0 8 0 amappl4 104 311 0 296 1 0 1 1 0 8 0 amappl3 96 2055 0 1933 4 0 4 4 0 8 0 amappl2 88 670 0 617 2 0 2 2 0 8 0 amappl1 80 9568 0 8991 16 0 16 16 0 8 1 amappl 88 3310 0 3134 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 10 0 2 1 0 1 1 0 8 0 uaddrrnd 24 538 0 502 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 538 0 502 1 0 1 1 0 8 0 vmmpekpl 168 6457 0 6416 3 0 3 3 0 8 0 vmmpepl 168 41889 0 39822 106 0 106 106 0 357 11 vmsppl 480 537 0 502 7 1 6 6 0 8 0 rwobjpl 72 16167 0 13453 51 0 51 51 0 8 0 pdppl 4096 1084 0 1004 114 30 84 98 0 8 4 pvpl 32 12021 0 0 97 0 97 97 0 265 0 pmappl 256 537 0 502 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 411 0 33 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8386cff0) 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(ffffffff8397f868) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:128 [inline] __mp_lock(ffffffff8397f868) at __mp_lock+0x199 sys/kern/kern_lock.c:159 softintr_dispatch(0) at softintr_dispatch+0x12a sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:840 Xsoftclock() at Xsoftclock+0x27 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x68 copyout() at copyout+0x57 syscall(ffff80003c436df0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c436df0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x56021636480, count: 4 ddb{0}> trace x86_ipi_db(ffffffff8386cff0) 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(ffffffff8397f868) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:128 [inline] __mp_lock(ffffffff8397f868) at __mp_lock+0x199 sys/kern/kern_lock.c:159 softintr_dispatch(0) at softintr_dispatch+0x12a sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:840 Xsoftclock() at Xsoftclock+0x27 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x68 copyout() at copyout+0x57 syscall(ffff80003c436df0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c436df0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x56021636480, count: -11 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(ffffffff833d2bfc) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8390bff8,2,ffff80002a37cae8) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8390bff8,2) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000fffe0f98,ffff80002a37cd40,104,ffff80002a37cc90) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000fffe0f98,ffff80002a37cd40,ffff80002a37cc90) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80002a37cd40) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a37cd40) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf97ad9f4050, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833d2bfc) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8390bff8,2,ffff80002a37cae8) at pool_do_get+0x5ea sys/kern/subr_pool.c:-1 pool_get(ffffffff8390bff8,2) at pool_get+0x149 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff8000fffe0f98,ffff80002a37cd40,104,ffff80002a37cc90) at shmget_allocate_segment+0x1a7 sys/kern/sysv_shm.c:-1 sys_shmget(ffff8000fffe0f98,ffff80002a37cd40,ffff80002a37cc90) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:482 syscall(ffff80002a37cd40) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a37cd40) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf97ad9f4050, count: -8