panic: pool_do_get: shmpl free list modified: page 0xfffffd8068a19000; item addr 0xfffffd8068a197e0; offset 0x40=0x68916053 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 93592 55828 32767 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83365bee) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8387cca8,1,ffff80003441b1a8) at pool_do_get+0x5df pool_get(ffffffff8387cca8,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c4a8a90,ffff80003441b400,0,ffff80003441b350) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c4a8a90,ffff80003441b400,ffff80003441b350) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003441b400) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003441b400) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd81d2a57b0, 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 0xfffffd8068a19000; item addr 0xfffffd8068a197e0; offset 0x40=0x68916053 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83365bee) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8387cca8,1,ffff80003441b1a8) at pool_do_get+0x5df pool_get(ffffffff8387cca8,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c4a8a90,ffff80003441b400,0,ffff80003441b350) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c4a8a90,ffff80003441b400,ffff80003441b350) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003441b400) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003441b400) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd81d2a57b0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003441afd0 rbx 0xffff8000299eeddf rdx 0 rcx 0xffff80003c4a8a90 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x81ac01a0483566eb r11 0xec06e2a688510689 r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff8216f0c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003441afc0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=93592 pid=55828 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=78, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c4a8560,0xffff80003c4a8040 process=0xffff80003c474ed0 user=0xffff800034416000, vmspace=0xfffffd806b91dba0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55828 60694 87385 32767 2 0x10 syz-executor *55828 93592 87385 32767 7 0x4000010 syz-executor 55828 427160 87385 32767 3 0x4000090 fsleep syz-executor 14648 180276 87708 32767 2 0x10 syz-executor 14648 99691 87708 32767 3 0x4000090 fsleep syz-executor 35163 85502 0 0 3 0x14200 bored sosplice 87708 12683 88960 32767 3 0x90 nanoslp syz-executor 71679 269828 35788 32767 3 0x90 piperd syz-executor 87385 241754 89450 32767 3 0x90 nanoslp syz-executor 77220 510320 98230 32767 3 0x90 nanoslp syz-executor 54293 323698 84616 32767 3 0x90 piperd syz-executor 8181 414233 33946 32767 3 0x90 piperd syz-executor 88960 154655 7383 0 3 0x82 wait syz-executor 35788 410415 7383 0 3 0x82 wait syz-executor 89450 66879 7383 0 3 0x82 wait syz-executor 98230 373990 7383 0 3 0x82 wait syz-executor 84616 277980 7383 0 3 0x82 wait syz-executor 33946 260793 7383 0 3 0x82 wait syz-executor 7383 28896 19557 0 3 0x82 nanoslp syz-executor 19557 378936 48912 0 3 0x10008a sigsusp ksh 48912 517988 79323 0 3 0x98 kqread sshd-session 79323 337260 83474 0 3 0x92 kqread sshd-session 840 375948 1 0 3 0x100083 ttyin getty 83474 460402 1 0 3 0x88 kqread sshd 39493 410290 40790 73 3 0x1100090 kqread syslogd 40790 520670 1 0 3 0x100082 sbwait syslogd 39261 287438 1 0 3 0x100080 kqread resolvd 78074 331108 2924 77 3 0x100092 kqread dhcpleased 10630 74299 2924 77 3 0x100092 kqread dhcpleased 2924 28203 1 0 3 0x80 kqread dhcpleased 89869 315843 0 0 3 0x14200 bored smr 71783 310538 0 0 2 0x14200 zerothread 29513 165991 0 0 3 0x14200 aiodoned aiodoned 99287 108063 0 0 3 0x14200 syncer update 55362 81473 0 0 3 0x14200 cleaner cleaner 97596 484543 0 0 3 0x14200 reaper reaper 49564 266027 0 0 3 0x14200 pgdaemon pagedaemon 69512 114152 0 0 3 0x14200 bored viomb 64318 50056 0 0 3 0x40014200 acpi0 acpi0 90082 497717 0 0 3 0x40014200 idle1 3301 8790 0 0 3 0x14200 bored softnet7 68592 374249 0 0 3 0x14200 bored softnet6 8367 74326 0 0 3 0x14200 bored softnet5 84114 387858 0 0 3 0x14200 bored softnet4 53773 304218 0 0 3 0x14200 bored softnet3 8222 52861 0 0 3 0x14200 bored softnet2 7855 64608 0 0 3 0x14200 bored softnet1 65309 118781 0 0 3 0x14200 bored softnet0 48948 317879 0 0 3 0x14200 bored systqmp 28384 378206 0 0 3 0x14200 bored systq 62501 220823 0 0 3 0x14200 tmoslp softclockmp 42049 174227 0 0 2 0x40014200 softclock 91347 59394 0 0 3 0x40014200 idle0 1 315380 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bb08b10) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #3 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1824 #4 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863 #5 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #5 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2486 #6 exit1+0x6fc sys/kern/kern_exit.c:260 #7 sys_exit+0x1a sys/kern/kern_exit.c:-1 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 CPU 1: exclusive mutex shmpl r = 0 (0xffffffff8387ccc0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pool_get+0x124 sys/kern/subr_pool.c:581 #4 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 55828 (syz-executor) thread 0xffff80003c4a8a90 (93592) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8388d158) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:748 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff8387ccc0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 pool_get+0x124 sys/kern/subr_pool.c:581 #4 shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 #5 sys_shmget+0x195 sys/kern/sysv_shm.c:482 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10191 10952K 10968K 166960K 11275 0 pcb 17 12K 12K 166960K 17 0 rtable 173 5K 6K 166960K 266 0 pf 27 16K 16K 166960K 31 0 ifaddr 34 6K 7K 166960K 44 0 ifgroup 42 1K 2K 166960K 50 0 sysctl 3 1K 9K 166960K 7 0 counters 64 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 31 0 iov 0 0K 12K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1496 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 121K 166960K 403 0 sigio 0 0K 0K 166960K 5 0 proc 58 99K 147K 166960K 518 0 subproc 54 3K 4K 166960K 207 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 35 0 in_multi 77 5K 7K 166960K 113 0 ether_multi 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 373 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 196 142K 171K 166960K 4825 0 UVM aobj 12 4K 4K 166960K 13 0 pinsyscall 38 76K 112K 166960K 1415 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 20 0 NDP 9 0K 2K 166960K 27 0 temp 66 8651K 8728K 166960K 4912 0 kqueue 13 20K 28K 166960K 80 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 98 0 20 5 0 5 5 0 8 0 unpcb 144 170 0 155 2 0 2 2 0 8 1 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 117 0 111 4 0 4 4 0 8 3 arp 128 10 0 2 1 0 1 1 0 8 0 inpcb 328 368 0 359 7 0 7 7 0 8 5 ip6q 72 3 0 0 1 0 1 1 0 8 0 ip6af 40 4 0 0 1 0 1 1 0 8 0 nd6 144 19 0 5 1 0 1 1 0 8 0 kcovpl 48 23 0 17 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 452 0 86 28 0 28 28 0 8 2 art_table 40 453 0 86 5 0 5 5 0 8 0 art_node 32 98 0 28 1 0 1 1 0 8 0 sysvmsgpl 40 35 0 35 1 0 1 1 0 8 1 semapl 112 13 0 4 1 0 1 1 0 8 0 shmpl 112 10 0 1 1 0 1 1 0 8 0 pool(0xffffffff8387cca8:shmpl): page inconsistency: page 0xfffffd8068a19000; 25 on list, 9 missing, 35 items per page dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1858 0 334 96 0 96 96 0 8 0 ffsino 296 1858 0 334 118 0 118 118 0 8 0 nchpl 144 2337 0 642 64 0 64 64 0 8 0 uvmvnodes 80 2074 0 0 43 0 43 43 0 8 0 vnodes 216 2074 0 0 116 0 116 116 0 8 0 namei 1024 9203 0 9203 2 0 2 2 0 8 2 percpumem 16 49 0 2 1 0 1 1 0 8 0 kstatmem 264 24 0 4 2 0 2 2 0 8 0 scxspl 216 8233 0 8233 10 2 8 8 1 8 8 plimitpl 152 169 0 146 2 0 2 2 0 8 1 sigapl 424 652 0 599 8 0 8 8 0 8 0 knotepl 120 330 0 0 10 0 10 10 0 8 0 kqueuepl 224 97 0 86 1 0 1 1 0 8 0 pipepl 344 157 0 130 4 0 4 4 0 8 0 fdescpl 528 629 0 600 3 0 3 3 0 8 0 filepl 160 3183 0 2995 13 0 13 13 0 8 4 lockfpl 104 54 0 52 1 0 1 1 0 8 0 lockfspl 48 21 0 19 1 0 1 1 0 8 0 sessionpl 144 40 0 26 1 0 1 1 0 8 0 pgrppl 48 64 0 43 1 0 1 1 0 8 0 ucredpl 104 388 0 371 1 0 1 1 0 8 0 zombiepl 144 601 0 599 1 0 1 1 0 8 0 processpl 1248 652 0 599 7 1 6 6 0 8 0 procpl 664 1011 0 955 7 0 7 7 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 752 591 0 564 10 0 10 10 0 8 6 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 196 0 0 13 0 13 13 0 8 0 bufpl 280 3134 0 116 216 0 216 216 0 8 0 anonpl 32 7472 0 0 61 0 61 61 0 246 0 amapchunkpl 152 14669 0 14278 31 3 28 28 0 158 7 amappl16 200 2987 0 2969 17 6 11 14 0 8 8 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 110 0 100 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 1 0 1 0 8 0 amappl12 168 1225 0 1196 2 0 2 2 0 8 0 amappl11 160 58 0 48 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 92 0 82 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 135 0 129 1 0 1 1 0 8 0 amappl4 104 284 0 268 1 0 1 1 0 8 0 amappl3 96 2660 0 2567 4 0 4 4 0 8 0 amappl2 88 618 0 564 2 0 2 2 0 8 0 amappl1 80 9658 0 9120 14 0 14 14 0 8 0 amappl 88 4145 0 4011 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 12 0 1 1 0 1 1 0 8 0 uaddrrnd 24 629 0 600 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 629 0 600 1 0 1 1 0 8 0 vmmpekpl 168 7138 0 7092 3 0 3 3 0 8 0 vmmpepl 168 47356 0 45618 108 0 108 108 0 357 12 vmsppl 488 628 0 599 7 1 6 6 0 8 0 rwobjpl 80 18119 0 15276 62 0 62 62 0 8 0 pdppl 4096 1266 0 1198 106 28 78 96 0 8 10 pvpl 32 15607 0 0 126 0 126 126 0 265 0 pmappl 256 628 0 599 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 282 0 31 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8379bff0) 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(ffffffff8388cf50) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8388cf50) at __mp_lock+0x192 sys/kern/kern_lock.c:165 exit1(ffff80003c4a87f8,43,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff80003c4a87f8,ffff80002a34b170,ffff80002a34b0c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a34b170) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a34b170) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x729895cb7f60, count: 7 ddb{0}> trace x86_ipi_db(ffffffff8379bff0) 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(ffffffff8388cf50) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8388cf50) at __mp_lock+0x192 sys/kern/kern_lock.c:165 exit1(ffff80003c4a87f8,43,0,1) at exit1+0x701 sys/kern/kern_exit.c:260 sys_exit(ffff80003c4a87f8,ffff80002a34b170,ffff80002a34b0c0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a34b170) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a34b170) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x729895cb7f60, 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:438 panic(ffffffff83365bee) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8387cca8,1,ffff80003441b1a8) at pool_do_get+0x5df pool_get(ffffffff8387cca8,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c4a8a90,ffff80003441b400,0,ffff80003441b350) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c4a8a90,ffff80003441b400,ffff80003441b350) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003441b400) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003441b400) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd81d2a57b0, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83365bee) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff8387cca8,1,ffff80003441b1a8) at pool_do_get+0x5df pool_get(ffffffff8387cca8,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003c4a8a90,ffff80003441b400,0,ffff80003441b350) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003c4a8a90,ffff80003441b400,ffff80003441b350) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff80003441b400) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003441b400) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd81d2a57b0, count: -8