panic: pool_do_put: shmpl: double pool_put: 0xfffffd80532a5e10 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 162171 55121 32767 0x10 0x4000000 0 syz-executor *191486 12424 32767 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830776fe) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_put(ffffffff8354fe98,fffffd80532a5e10) at pool_do_put+0x1be sys/kern/subr_pool.c:841 pool_put(ffffffff8354fe98,fffffd80532a5e10) at pool_put+0xb3 sys/kern/subr_pool.c:799 shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 syscall(ffff800038bd5340) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800038bd5340) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a13e19cae0, count: 8 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_put: shmpl: double pool_put: 0xfffffd80532a5e10 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830776fe) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_put(ffffffff8354fe98,fffffd80532a5e10) at pool_do_put+0x1be sys/kern/subr_pool.c:841 pool_put(ffffffff8354fe98,fffffd80532a5e10) at pool_put+0xb3 sys/kern/subr_pool.c:799 shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 syscall(ffff800038bd5340) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800038bd5340) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a13e19cae0, count: -7 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800038bd5070 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff800033fcef60 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x180cc433297d71ec r11 0x77b0b135562d3f4d r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff8288b9c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800038bd5060 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=191486 pid=12424 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffccb8,0xffff800033fcea60 process=0xffff800029fe96b0 user=0xffff800038bd0000, vmspace=0xfffffd806c85bdd0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55121 230187 6867 32767 2 0x10 syz-executor 55121 162171 6867 32767 7 0x4000010 syz-executor 55121 410169 6867 32767 2 0x4000010 syz-executor 12424 244559 44544 32767 2 0x10 syz-executor *12424 191486 44544 32767 7 0x4000010 syz-executor 12424 408245 44544 32767 3 0x4000090 fsleep syz-executor 77664 94518 13232 32767 2 0x10 syz-executor 77664 343893 13232 32767 3 0x4000090 kqread syz-executor 77664 337242 13232 32767 3 0x4000090 fsleep syz-executor 48488 369595 65031 32767 2 0x10 syz-executor 48488 186596 65031 32767 3 0x4000090 ttyout syz-executor 11200 163062 7885 32767 2 0x10 syz-executor 11200 90894 7885 32767 3 0x4000090 sbwait syz-executor 11200 396624 7885 32767 3 0x4000090 fsleep syz-executor 11200 375310 7885 32767 3 0x4000090 fsleep syz-executor 59763 175138 84658 32767 2 0x10 syz-executor 59763 294583 84658 32767 2 0x4000010 syz-executor 48539 164898 2320 32767 3 0x90 nanoslp syz-executor 48539 336853 2320 32767 3 0x4000090 netacc syz-executor 48539 56279 2320 32767 3 0x4000090 kqsel syz-executor 48539 297734 2320 32767 3 0x4000090 fsleep syz-executor 48539 424858 2320 32767 3 0x4000090 fsleep syz-executor 53484 103550 10290 32767 3 0x90 nanoslp syz-executor 53484 517376 10290 32767 3 0x4000090 ttyin syz-executor 53484 401141 10290 32767 3 0x4000090 fsleep syz-executor 3077 323080 42491 0 3 0x82 netio sshd-session 84658 132724 42724 32767 3 0x90 nanoslp syz-executor 42724 109061 71652 0 3 0x82 wait syz-executor 10290 369968 73388 32767 3 0x90 nanoslp syz-executor 6867 92092 48128 32767 3 0x90 nanoslp syz-executor 48128 72472 71652 0 3 0x82 wait syz-executor 73388 452622 71652 0 3 0x82 wait syz-executor 2320 340483 82558 32767 3 0x90 nanoslp syz-executor 13232 4534 45626 32767 3 0x90 nanoslp syz-executor 7885 52705 23161 32767 3 0x90 nanoslp syz-executor 44544 269803 94425 32767 3 0x90 nanoslp syz-executor 65031 484801 30642 32767 3 0x90 nanoslp syz-executor 23161 88407 71652 0 3 0x82 wait syz-executor 94425 464287 71652 0 3 0x82 wait syz-executor 82558 230014 71652 0 3 0x82 wait syz-executor 30642 352199 71652 0 3 0x82 wait syz-executor 45626 398171 71652 0 3 0x82 wait syz-executor 76642 461180 42491 0 3 0x82 netio sshd-session 6859 151352 42491 0 3 0x82 netio sshd-session 61980 348504 42491 0 3 0x82 netio sshd-session 58002 482952 0 0 3 0x14200 bored sosplice 28822 24689 25652 0 3 0x100082 sbwait arp 25652 326420 44656 0 3 0x10008a sigsusp sh 44656 449656 1 0 3 0x80 wait syz-executor 71652 106484 79829 0 3 0x82 kqread syz-executor 79829 114057 35715 0 3 0x10008a sigsusp ksh 35715 48760 15816 0 3 0x98 kqread sshd-session 15816 288816 42491 0 3 0x92 kqread sshd-session 99021 239628 1 0 3 0x100083 ttyin getty 42491 499641 1 0 3 0x88 kqread sshd 15401 185610 31920 73 3 0x1100090 kqread syslogd 31920 463303 1 0 3 0x100082 sbwait syslogd 84478 508372 1 0 3 0x100080 kqread resolvd 42475 222239 52272 77 3 0x100092 kqread dhcpleased 32040 236747 52272 77 3 0x100092 kqread dhcpleased 52272 180137 1 0 3 0x80 kqread dhcpleased 65983 396533 0 0 3 0x14200 bored smr 73410 278193 0 0 2 0x14200 zerothread 15238 7533 0 0 3 0x14200 aiodoned aiodoned 77202 164723 0 0 3 0x14200 syncer update 31620 403074 0 0 3 0x14200 cleaner cleaner 4019 156616 0 0 3 0x14200 reaper reaper 12080 460598 0 0 3 0x14200 pgdaemon pagedaemon 63637 471058 0 0 3 0x14200 bored viomb 8456 465281 0 0 3 0x40014200 acpi0 acpi0 42688 53887 0 0 3 0x40014200 idle1 11969 503872 0 0 3 0x14200 bored softnet3 84030 8990 0 0 3 0x14200 bored softnet2 60452 86845 0 0 3 0x14200 bored softnet1 73874 260449 0 0 3 0x14200 bored softnet0 60058 286149 0 0 3 0x14200 bored systqmp 21883 361673 0 0 3 0x14200 bored systq 64966 516377 0 0 3 0x14200 tmoslp softclockmp 3502 91590 0 0 3 0x40014200 tmoslp softclock 70006 344444 0 0 3 0x40014200 idle0 1 16769 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 (0xffffffff8354fea8) #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_put+0x9f sys/kern/subr_pool.c:797 #4 shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] #4 shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 12424 (syz-executor) thread 0xffff800033fcef60 (191486) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83578718) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252 #6 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #7 shm_delete_mapping+0xa0 sys/kern/sysv_shm.c:170 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff8354fea8) #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_put+0x9f sys/kern/subr_pool.c:797 #4 shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] #4 shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 #5 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10207 11050K 11059K 166960K 11748 0 pcb 17 14K 16K 166960K 19 0 rtable 236 6K 7K 166960K 5060 0 pf 31 16K 16K 166960K 344 0 ifaddr 42 9K 9K 166960K 663 0 ifgroup 50 2K 2K 166960K 671 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 372 0 ioctlops 0 0K 2K 166960K 213 0 iov 0 0K 16K 166960K 108 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1470 92K 92K 166960K 4143 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 44 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 38 0 dirhash 15 2K 3K 166960K 78 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 29 109K 169K 166960K 4442 0 sigio 0 0K 0K 166960K 38 0 proc 58 79K 176K 166960K 4968 0 subproc 117 7K 13K 166960K 2418 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 394 0 in_multi 99 7K 7K 166960K 1890 0 ether_multi 1 0K 0K 166960K 20 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 211 943K 943K 166960K 211 0 exec 0 0K 1K 166960K 2626 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 328 85K 139K 166960K 32581 0 UVM aobj 75 5K 6K 166960K 85 0 pinsyscall 59 118K 144K 166960K 9581 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 210 0 NDP 11 0K 2K 166960K 484 0 temp 83 6824K 6952K 166960K 35762 0 kqueue 16 26K 28K 166960K 395 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 120 523 0 519 2 1 1 2 0 8 0 rtentry 112 1808 0 1697 9 5 4 4 0 8 0 unpcb 144 1859 0 1838 18 12 6 6 0 8 5 syncache 336 45 0 45 15 14 1 1 0 8 1 tcpqe 32 17 0 17 7 6 1 1 0 8 1 tcpcb 808 1383 0 1361 37 34 3 11 0 8 0 arp 120 324 0 306 1 0 1 1 0 8 0 ipq 40 14 0 11 1 0 1 1 0 8 0 ipqe 40 238 0 235 1 0 1 1 0 8 0 inpcb 336 3912 0 3885 59 55 4 15 0 8 1 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 136 501 0 476 2 1 1 2 0 8 0 kcovpl 48 186 0 177 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 7274 0 6814 97 68 29 31 0 8 0 art_table 32 7275 0 6814 6 2 4 4 0 8 0 art_node 16 1807 0 1706 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 10 1 0 1 1 0 8 0 semapl 112 34 0 24 1 0 1 1 0 8 0 shmpl 112 82 0 10 3 0 3 3 0 8 0 pool(shmpl): free list modified: page 0xfffffd80532a5000; item ordinal 0; addr 0xfffffd80532a5e10 (p 0xfffffd80532a5000); offset 0x1c=0xdeafbeac dirhash 1024 62 0 42 3 0 3 3 0 8 0 dino2pl 256 4860 0 2950 120 0 120 120 0 8 0 ffsino 272 4860 0 2950 128 0 128 128 0 8 0 nchpl 144 7641 0 5695 73 0 73 73 0 8 0 uvmvnodes 80 7287 0 0 149 0 149 149 0 8 0 vnodes 216 7287 0 0 405 0 405 405 0 8 0 namei 1024 40629 0 40629 25 23 2 2 0 8 2 percpumem 16 200 0 154 1 0 1 1 0 8 0 kstatmem 264 330 0 308 2 0 2 2 0 8 0 scxspl 216 82248 0 82248 29 26 3 8 1 8 3 plimitpl 152 991 0 966 2 0 2 2 0 8 0 sigapl 424 4395 0 4331 14 5 9 9 0 8 0 futexpl 64 27998 0 27991 14 13 1 1 0 8 0 knotepl 120 695 0 0 18 0 18 18 0 8 0 kqueuepl 216 837 0 825 7 6 1 5 0 8 0 pipepl 320 949 0 915 8 3 5 5 0 8 0 fdescpl 496 4376 0 4331 15 7 8 8 0 8 1 filepl 152 21797 0 21507 31 15 16 17 0 8 2 lockfpl 104 759 0 756 1 0 1 1 0 8 0 lockfspl 48 221 0 218 1 0 1 1 0 8 0 sessionpl 144 211 0 190 1 0 1 1 0 8 0 pgrppl 48 436 0 407 1 0 1 1 0 8 0 ucredpl 104 3882 0 3863 1 0 1 1 0 8 0 zombiepl 144 4331 0 4331 1 0 1 1 0 8 1 processpl 1160 4395 0 4331 10 4 6 6 0 8 0 procpl 648 7480 0 7399 7 0 7 7 0 8 0 srpgc 96 18 0 18 7 7 0 1 0 8 0 sosppl 168 31 0 31 8 7 1 1 0 8 1 sockpl 664 6356 0 6304 73 59 14 16 0 8 8 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 187 0 0 17 2 15 17 0 8 0 mcl2k 2048 148 0 0 5 0 5 5 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 1512 0 0 79 0 79 79 0 8 0 bufpl 280 11906 0 3654 591 1 590 590 0 8 0 anonpl 24 639294 0 633085 125 40 85 93 0 185 28 amapchunkpl 152 101996 0 101243 69 29 40 48 0 158 10 amappl16 200 11354 0 11311 110 95 15 28 0 8 9 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 548 0 532 1 0 1 1 0 8 0 amappl13 176 11 0 11 2 2 0 1 0 8 0 amappl12 168 7514 0 7468 7 4 3 3 0 8 0 amappl11 160 73 0 63 1 0 1 1 0 8 0 amappl10 152 13 0 13 1 1 0 1 0 8 0 amappl9 144 153 0 152 2 1 1 1 0 8 0 amappl8 136 25 0 21 1 0 1 1 0 8 0 amappl7 128 438 0 423 1 0 1 1 0 8 0 amappl6 120 1689 0 1686 1 0 1 1 0 8 0 amappl5 112 777 0 764 1 0 1 1 0 8 0 amappl4 104 879 0 863 1 0 1 1 0 8 0 amappl3 96 19482 0 19326 6 1 5 5 0 8 0 amappl2 88 3213 0 3120 4 1 3 3 0 8 0 amappl1 80 38446 0 37527 24 3 21 21 0 8 0 amappl 88 30767 0 30522 7 1 6 6 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 84 0 10 2 0 2 2 0 8 0 pool(aobjpl): free list modified: page 0xfffffd805afab000; item ordinal 0; addr 0xfffffd805afab5a8 (p 0xfffffd805afab000); offset 0xc=0xdeaf4151 uaddrrnd 24 4376 0 4331 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4376 0 4331 1 0 1 1 0 8 0 vmmpekpl 168 40025 0 39963 5 1 4 4 0 8 0 vmmpepl 168 283635 0 280877 191 57 134 134 0 357 12 vmsppl 440 4375 0 4331 13 6 7 7 0 8 1 rwobjpl 56 88478 0 79743 133 7 126 126 0 8 0 pdppl 4096 8759 0 8662 606 509 97 123 0 8 0 pvpl 32 48542 0 0 389 1 388 388 0 265 0 pmappl 248 4375 0 4331 5 1 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 1200 0 707 15 0 15 15 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8340bff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:154 end trace frame: 0x0, count: 11 ddb{0}> trace x86_ipi_db(ffffffff8340bff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:154 end trace frame: 0x0, count: -4 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(ffffffff830776fe) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_put(ffffffff8354fe98,fffffd80532a5e10) at pool_do_put+0x1be sys/kern/subr_pool.c:841 pool_put(ffffffff8354fe98,fffffd80532a5e10) at pool_put+0xb3 sys/kern/subr_pool.c:799 shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 syscall(ffff800038bd5340) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800038bd5340) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a13e19cae0, count: 8 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830776fe) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_put(ffffffff8354fe98,fffffd80532a5e10) at pool_do_put+0x1be sys/kern/subr_pool.c:841 pool_put(ffffffff8354fe98,fffffd80532a5e10) at pool_put+0xb3 sys/kern/subr_pool.c:799 shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac shm_deallocate_segment sys/kern/sysv_shm.c:153 [inline] shm_delete_mapping(fffffd806c85bdd0,ffff80000129f008) at shm_delete_mapping+0x1ac sys/kern/sysv_shm.c:174 syscall(ffff800038bd5340) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800038bd5340) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a13e19cae0, count: -7