Ì`Ópanic: pool_do_get: shmpl free list modified: page 0xfffffd806a58e000; item addr 0xfffffd806a58e468; offset 0x2c=0xdead410f Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *422421 16658 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83062e9d) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff835e3f60,1,ffff800037204538) at pool_do_get+0x5e6 pool_get(ffffffff835e3f60,1) at pool_get+0x141 shmget_allocate_segment(ffff8000371c1478,ffff800037204790,0,ffff8000372046e0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000371c1478,ffff800037204790,ffff8000372046e0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 syscall(ffff800037204790) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037204790) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9d5139f170, 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 0xfffffd806a58e000; item addr 0xfffffd806a58e468; offset 0x2c=0xdead410f ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83062e9d) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff835e3f60,1,ffff800037204538) at pool_do_get+0x5e6 pool_get(ffffffff835e3f60,1) at pool_get+0x141 shmget_allocate_segment(ffff8000371c1478,ffff800037204790,0,ffff8000372046e0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000371c1478,ffff800037204790,ffff8000372046e0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 syscall(ffff800037204790) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037204790) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9d5139f170, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800037204380 rbx 0xffff800029b7cdbf rdx 0xffff80000129e6c0 rcx 0xffff8000371c1478 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb2b636f6bdc22de7 r11 0xf1e32e3520350f46 r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff82b3e5e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800037204370 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=422421 pid=16658 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=0xffff8000371c1700,0xffffffff83606f20 process=0xffff8000fffecda0 user=0xffff8000371ff000, vmspace=0xfffffd806ce48540 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16658 116209 71191 0 3 0x80 fsleep syz-executor *16658 422421 71191 0 7 0x4000000 syz-executor 42787 455476 9749 0 3 0x80 fsleep syz-executor 42787 168448 9749 0 3 0x4000080 lockf syz-executor 26619 40867 40013 0 3 0x80 fsleep syz-executor 26619 387270 40013 0 3 0x4000080 sbwait syz-executor 26619 263457 40013 0 3 0x4000080 fsleep syz-executor 63583 224359 44010 0 3 0x80 fsleep syz-executor 63583 489039 44010 0 3 0x4000080 netcon syz-executor 46337 75813 50327 0 3 0x80 fsleep syz-executor 46337 122414 50327 0 3 0x4000080 pipewr syz-executor 94537 516822 78354 0 3 0x80 fsleep syz-executor 94537 266831 78354 0 3 0x4000080 lockf syz-executor 94537 420359 78354 0 3 0x4000080 fsleep syz-executor 9343 470635 58186 0 3 0x80 fsleep syz-executor 9343 389016 58186 0 3 0x4000080 ttyout syz-executor 33932 357382 0 0 3 0x14280 nfsidl nfsio 38283 448609 0 0 3 0x14280 nfsidl nfsio 20233 338954 0 0 3 0x14280 nfsidl nfsio 35153 115914 0 0 3 0x14280 nfsidl nfsio 58066 345172 0 0 3 0x14280 nfsidl nfsio 71751 254727 0 0 3 0x14280 nfsidl nfsio 28029 170601 0 0 3 0x14280 nfsidl nfsio 39469 163428 0 0 3 0x14280 nfsidl nfsio 92672 3620 0 0 3 0x14280 nfsidl nfsio 4348 433441 0 0 3 0x14280 nfsidl nfsio 81945 374024 0 0 3 0x14280 nfsidl nfsio 34720 139309 0 0 3 0x14280 nfsidl nfsio 73723 274311 0 0 3 0x14280 nfsidl nfsio 72964 331001 0 0 3 0x14280 nfsidl nfsio 84307 26323 0 0 3 0x14280 nfsidl nfsio 74086 194687 0 0 3 0x14280 nfsidl nfsio 31672 17641 0 0 3 0x14280 nfsidl nfsio 75345 333224 0 0 3 0x14280 nfsidl nfsio 28889 447663 0 0 3 0x14280 nfsidl nfsio 31127 244724 0 0 3 0x14280 nfsidl nfsio 43206 30850 1 0 3 0x80 nanoslp init 81363 202525 0 0 3 0x14200 bored sosplice 49838 479022 52451 0 3 0x100082 sbwait ndp 52451 274747 7713 0 3 0x10008a sigsusp sh 50327 59135 89856 0 3 0x82 nanoslp syz-executor 58186 18705 89856 0 3 0x82 nanoslp syz-executor 71191 246943 89856 0 3 0x82 nanoslp syz-executor 40013 73437 89856 0 3 0x82 nanoslp syz-executor 78354 75367 89856 0 3 0x82 nanoslp syz-executor 44010 140383 89856 0 3 0x82 nanoslp syz-executor 9749 59525 89856 0 3 0x82 nanoslp syz-executor 7713 206 89856 0 3 0x82 wait syz-executor 89856 335660 12869 0 3 0x82 kqread syz-executor 12869 110743 49339 0 3 0x10008a sigsusp ksh 49339 213970 16512 0 3 0x98 kqread sshd-session 16512 159482 57902 0 3 0x92 kqread sshd-session 57902 332798 1 0 3 0x88 kqread sshd 70684 49344 40598 74 3 0x1100092 bpf pflogd 40598 132583 1 0 3 0x80 sbwait pflogd 64570 431883 11284 73 3 0x1100090 kqread syslogd 11284 162604 1 0 3 0x100082 sbwait syslogd 70695 451881 1 0 3 0x100080 kqread resolvd 62317 190799 1446 77 3 0x100092 kqread dhcpleased 21941 520839 1446 77 3 0x100092 kqread dhcpleased 1446 127891 1 0 3 0x80 kqread dhcpleased 44592 512282 0 0 3 0x14200 bored smr 14769 74494 0 0 3 0x14200 pgzero zerothread 57201 282939 0 0 3 0x14200 aiodoned aiodoned 52221 202869 0 0 3 0x14200 syncer update 85545 341342 0 0 3 0x14200 cleaner cleaner 45736 291529 0 0 3 0x14200 reaper reaper 85908 191748 0 0 3 0x14200 pgdaemon pagedaemon 13076 92374 0 0 3 0x14200 bored viomb 90799 480520 0 0 3 0x40014200 acpi0 acpi0 9967 195202 0 0 3 0x40014200 idle1 19270 488251 0 0 3 0x14200 bored softnet3 41749 200785 0 0 3 0x14200 bored softnet2 67676 37305 0 0 3 0x14200 bored softnet1 88606 415270 0 0 3 0x14200 bored softnet0 13319 436692 0 0 3 0x14200 bored systqmp 82472 387544 0 0 3 0x14200 bored systq 59489 392073 0 0 3 0x14200 tmoslp softclockmp 32513 326899 0 0 3 0x40014200 tmoslp softclock 31097 289308 0 0 7 0x40014200 idle0 1 301183 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex shmpl r = 0 (0xffffffff835e3f70) #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+0x103 sys/kern/subr_pool.c:579 #4 shmget_allocate_segment+0x1a7 #5 sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 16658 (syz-executor) thread 0xffff8000371c1478 (422421) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83526780) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #1 syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff835e3f70) #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+0x103 sys/kern/subr_pool.c:579 #4 shmget_allocate_segment+0x1a7 #5 sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10228 11131K 11457K 166960K 12246 0 pcb 18 12K 12K 166960K 100 0 rtable 201 7K 8K 166960K 387 0 pf 39 18K 22K 166960K 116 0 ifaddr 40 6K 7K 166960K 63 0 ifgroup 59 2K 2K 166960K 106 0 sysctl 3 0K 0K 166960K 3 0 counters 66 36K 37K 166960K 90 0 ioctlops 0 0K 4K 166960K 1682 0 iov 0 0K 28K 166960K 37 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1491 94K 94K 166960K 1985 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 19 3K 3K 166960K 26 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 19 69K 93K 166960K 681 0 sigio 0 0K 0K 166960K 44 0 proc 63 79K 140K 166960K 589 0 subproc 104 6K 6K 166960K 105 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 196 0 in_multi 83 6K 7K 166960K 123 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 439 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 241 73K 87K 166960K 8013 0 UVM aobj 51 4K 4K 166960K 56 0 pinsyscall 44 88K 104K 166960K 1775 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 73 0 NDP 13 0K 1K 166960K 43 0 temp 52 6818K 6888K 166960K 54233 0 kqueue 13 20K 30K 166960K 113 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 58 0 54 1 0 1 1 0 8 0 rtentry 112 115 0 25 4 0 4 4 0 8 0 unpcb 144 398 0 378 4 0 4 4 0 8 3 syncache 336 7 0 7 2 1 1 1 0 8 1 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 808 249 0 240 8 6 2 8 0 8 0 arp 120 18 0 4 1 0 1 1 0 8 0 inpcb 336 751 0 737 14 7 7 10 0 8 4 nd6 136 25 0 6 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 2 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 6 0 6 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 6 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 4 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 58 0 20 1 0 1 1 0 8 0 pfstkey 128 62 0 24 2 0 2 2 0 8 0 pfstate 376 61 0 23 5 0 5 5 0 8 0 pfrule 1344 29 0 19 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 455 0 72 29 0 29 29 0 8 1 art_table 32 457 0 72 4 0 4 4 0 8 0 art_node 16 113 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 22 0 5 1 0 1 1 0 8 0 shmpl 112 53 0 5 2 0 2 2 0 8 0 pool(0xffffffff835e3f60:shmpl): page inconsistency: page 0xfffffd806a58e000; 21 on list, 13 missing, 35 items per page dirhash 1024 22 0 5 3 0 3 3 0 8 0 dino2pl 256 2544 0 1047 95 0 95 95 0 8 0 ffsino 272 2544 0 1047 101 0 101 101 0 8 0 nchpl 144 3560 0 1875 63 0 63 63 0 8 0 uvmvnodes 80 3098 0 0 64 0 64 64 0 8 0 vnodes 216 3098 0 0 173 0 173 173 0 8 0 namei 1024 12183 0 12183 2 1 1 2 0 8 1 percpumem 16 59 0 12 1 0 1 1 0 8 0 kstatmem 264 50 0 24 3 0 3 3 0 8 1 scxspl 216 12596 0 12596 12 6 6 8 1 8 6 plimitpl 152 187 0 171 1 0 1 1 0 8 0 sigapl 424 1009 0 937 9 0 9 9 0 8 0 futexpl 64 10658 0 10649 1 0 1 1 0 8 0 knotepl 120 577 0 0 18 0 18 18 0 8 0 kqueuepl 216 270 0 259 5 2 3 5 0 8 2 pipepl 320 150 0 122 3 0 3 3 0 8 0 fdescpl 496 967 0 934 5 0 5 5 0 8 0 filepl 152 5882 0 5619 20 7 13 20 0 8 2 lockfpl 104 493 0 487 2 1 1 2 0 8 0 lockfspl 48 134 0 131 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 73 0 57 1 0 1 1 0 8 0 ucredpl 104 907 0 893 1 0 1 1 0 8 0 zombiepl 144 937 0 937 1 0 1 1 0 8 1 processpl 1160 1009 0 937 7 1 6 6 0 8 0 procpl 648 1915 0 1834 8 0 8 8 0 8 0 sosppl 168 5 0 5 2 1 1 1 0 8 1 sockpl 664 1217 0 1179 17 8 9 12 0 8 5 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 153 0 0 20 0 20 20 0 8 0 mcl2k 2048 35 0 0 5 0 5 5 0 8 0 mtagpl 96 20 0 0 1 0 1 1 0 8 0 mbufpl 256 219 0 0 14 0 14 14 0 8 0 bufpl 280 5635 0 98 396 0 396 396 0 8 0 anonpl 24 166618 0 158018 81 4 77 77 0 185 0 amapchunkpl 152 25512 0 24933 32 7 25 28 0 158 2 amappl16 200 3621 0 3366 42 15 27 27 0 8 1 amappl15 192 66 0 66 1 1 0 1 0 8 0 amappl14 184 119 0 106 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1605 0 1572 4 2 2 3 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 159 0 159 1 1 0 1 0 8 0 amappl8 136 18 0 15 1 0 1 1 0 8 0 amappl7 128 129 0 116 1 0 1 1 0 8 0 amappl6 120 168 0 166 1 0 1 1 0 8 0 amappl5 112 137 0 124 1 0 1 1 0 8 0 amappl4 104 317 0 298 1 0 1 1 0 8 0 amappl3 96 4753 0 4658 3 0 3 3 0 8 0 amappl2 88 1257 0 1173 3 0 3 3 0 8 0 amappl1 80 10211 0 9647 14 0 14 14 0 8 0 amappl 88 7564 0 7384 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 128 254 0 254 2 2 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 55 0 5 1 0 1 1 0 8 0 uaddrrnd 24 967 0 934 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 967 0 934 1 0 1 1 0 8 0 vmmpekpl 168 9255 0 9217 4 1 3 3 0 8 1 vmmpepl 168 65781 0 63660 105 2 103 103 0 357 0 vmsppl 440 966 0 934 6 2 4 5 0 8 0 rwobjpl 56 23603 0 19291 66 1 65 65 0 8 0 pdppl 4096 1941 0 1868 109 36 73 85 0 8 0 pvpl 32 19437 0 0 159 2 157 157 0 265 0 pmappl 248 966 0 934 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 410 0 53 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83484ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff83526578) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83526578) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffffffff83484ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff83484ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff83526578) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83526578) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffffffff83484ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -8 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:437 panic(ffffffff83062e9d) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff835e3f60,1,ffff800037204538) at pool_do_get+0x5e6 pool_get(ffffffff835e3f60,1) at pool_get+0x141 shmget_allocate_segment(ffff8000371c1478,ffff800037204790,0,ffff8000372046e0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000371c1478,ffff800037204790,ffff8000372046e0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 syscall(ffff800037204790) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037204790) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9d5139f170, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83062e9d) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff835e3f60,1,ffff800037204538) at pool_do_get+0x5e6 pool_get(ffffffff835e3f60,1) at pool_get+0x141 shmget_allocate_segment(ffff8000371c1478,ffff800037204790,0,ffff8000372046e0) at shmget_allocate_segment+0x1a7 sys_shmget(ffff8000371c1478,ffff800037204790,ffff8000372046e0) at sys_shmget+0x1b2 sys/kern/sysv_shm.c:480 syscall(ffff800037204790) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800037204790) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9d5139f170, count: -8