panic: pool_do_get: shmpl free list modified: page 0xfffffd806c02a000; item addr 0xfffffd806c02a230; offset 0x40=0xfe1ecc7f Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 90038 8834 -1 0x10 0 0 syz-executor * 22837 8834 -1 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a3b1c) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839a3ee0,1,ffff800037bea288) at pool_do_get+0x5df pool_get(ffffffff839a3ee0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bc12fb8,ffff800037bea4e0,186,ffff800037bea430) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bc12fb8,ffff800037bea4e0,ffff800037bea430) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff800037bea4e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800037bea4e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec0c3ea4ae0, 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 0xfffffd806c02a000; item addr 0xfffffd806c02a230; offset 0x40=0xfe1ecc7f ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a3b1c) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839a3ee0,1,ffff800037bea288) at pool_do_get+0x5df pool_get(ffffffff839a3ee0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bc12fb8,ffff800037bea4e0,186,ffff800037bea430) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bc12fb8,ffff800037bea4e0,ffff800037bea430) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff800037bea4e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800037bea4e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec0c3ea4ae0, count: -8 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800037bea0b0 rbx 0xffff8000299eee07 rdx 0xffff800001457d00 rcx 0xffff80003bc12fb8 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x1692d02bc400dcbe r11 0x70c711293562db8f r12 0xffff8000299eec08 r13 0 r14 0 r15 0x1 rip 0xffffffff82ea1115 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800037bea0a0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=22837 pid=8834 tcnt=2 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=0xffff80003bc122c0,0xffff80003bc13cc0 process=0xffff8000fffed358 user=0xffff800037be5000, vmspace=0xfffffd806ec57010 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 28658 23723 33787 0 2 0 syz-executor 8834 90038 59397 -1 7 0x10 syz-executor * 8834 22837 59397 -1 7 0x4000010 syz-executor 60850 280956 55127 0 2 0 syz-executor 60850 288484 55127 0 3 0x4000080 fsleep syz-executor 64707 498752 72225 0 2 0 syz-executor 64707 450437 72225 0 3 0x4000080 fsleep syz-executor 81552 31941 82115 0 2 0 syz-executor 81552 362762 82115 0 3 0x4000080 fsleep syz-executor 90095 100366 1935 0 2 0 syz-executor 90095 203167 1935 0 3 0x4000080 fsleep syz-executor 89172 105979 0 0 3 0x14200 acct acct 19061 123698 1 0 3 0x100083 ttyin getty 27869 457929 77324 0 3 0x82 wait syz-executor 55127 276270 77324 0 3 0x82 nanoslp syz-executor 33787 44003 77324 0 3 0x82 nanoslp syz-executor 82115 157218 77324 0 3 0x82 nanoslp syz-executor 1935 263061 77324 0 3 0x82 nanoslp syz-executor 59397 187782 77324 0 3 0x82 nanoslp syz-executor 13080 6341 77324 0 3 0x82 nanoslp syz-executor 72225 160405 77324 0 3 0x82 nanoslp syz-executor 77324 352595 43003 0 3 0x82 kqread syz-executor 43003 92018 21892 0 3 0x10008a sigsusp ksh 21892 472091 31034 0 3 0x98 kqread sshd-session 31034 68237 47861 0 3 0x92 kqread sshd-session 47861 271222 1 0 3 0x88 kqread sshd 63372 74489 11810 74 3 0x1100092 bpf pflogd 11810 376350 1 0 3 0x80 sbwait pflogd 67535 45491 36170 73 3 0x1100090 kqread syslogd 36170 457349 1 0 3 0x100082 sbwait syslogd 51582 142142 1 0 3 0x100000 biowait resolvd 62521 388875 6137 77 3 0x100092 kqread dhcpleased 6596 470688 6137 77 3 0x100092 kqread dhcpleased 6137 344895 1 0 3 0x80 kqread dhcpleased 24984 429606 0 0 3 0x14200 bored smr 44787 153944 0 0 2 0x14200 zerothread 901 414039 0 0 3 0x14200 aiodoned aiodoned 46741 431257 0 0 3 0x14200 syncer update 65988 148696 0 0 3 0x14200 cleaner cleaner 47420 143375 0 0 3 0x14200 reaper reaper 85016 353168 0 0 3 0x14200 pgdaemon pagedaemon 70343 154879 0 0 3 0x14200 bored viomb 10220 218837 0 0 3 0x40014200 acpi0 acpi0 83439 158050 0 0 3 0x40014200 idle1 13275 7568 0 0 3 0x14200 bored softnet1 77406 397772 0 0 3 0x14200 bored softnet0 74294 396183 0 0 3 0x14200 bored systqmp 95946 313517 0 0 3 0x14200 bored systq 87387 300013 0 0 3 0x14200 tmoslp softclockmp 74154 489013 0 0 3 0x40014200 tmoslp softclock 52462 80997 0 0 3 0x40014200 idle0 1 497553 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex shmpl r = 0 (0xffffffff839a3ef8) #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:775 #7 Xsyscall+0x128 Process 8834 (syz-executor) thread 0xffff80003bc12fb8 (22837) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83962370) #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:775 #2 Xsyscall+0x128 exclusive mutex shmpl r = 0 (0xffffffff839a3ef8) #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:775 #7 Xsyscall+0x128 Process 51582 (resolvd) thread 0xffff80002a272d08 (142142) exclusive rrwlock inode r = 0 (0xfffffd800d3dac70) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_fsync+0x144 sys/kern/vfs_syscalls.c:2940 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 11084K 11482K 166960K 11813 0 pcb 17 14K 16K 166960K 138 0 rtable 207 7K 8K 166960K 397 0 pf 31 17K 20K 166960K 58 0 ifaddr 35 6K 7K 166960K 54 0 ifgroup 47 2K 2K 166960K 70 0 sysctl 3 1K 9K 166960K 7 0 counters 66 36K 38K 166960K 218 0 ioctlops 0 0K 4K 166960K 1576 0 iov 0 0K 12K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1421 89K 90K 166960K 1650 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 383 0 sigio 0 0K 0K 166960K 8 0 proc 72 115K 147K 166960K 565 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 29 0 in_multi 77 5K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 413 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 236 159K 177K 166960K 5362 0 UVM aobj 14 4K 6K 166960K 16 0 pinsyscall 43 86K 102K 166960K 1526 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 17 0 NDP 10 0K 2K 166960K 33 0 temp 45 8668K 8742K 166960K 14916 0 kqueue 13 20K 28K 166960K 71 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 120 122 0 118 3 1 2 3 0 8 1 rtentry 176 119 0 29 6 0 6 6 0 8 0 unpcb 144 214 0 197 4 0 4 4 0 8 3 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpcb 736 92 0 88 4 0 4 4 0 8 3 arp 136 19 0 5 1 0 1 1 0 8 0 inpcb 328 446 0 439 7 0 7 7 0 8 6 nd6 152 24 0 6 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 72 0 72 1 0 1 1 0 8 1 pppxif 1504 2 0 2 1 0 1 1 0 8 1 pffrag 232 4 0 3 1 0 1 1 0 482 0 pffrnode 88 4 0 3 1 0 1 1 0 8 0 pffrent 40 8 0 7 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 pfstitem 24 31 0 0 1 0 1 1 0 8 0 pfstkey 128 31 0 0 1 0 1 1 0 8 0 pfstate 448 30 0 0 4 0 4 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 490 0 127 31 0 31 31 0 8 6 art_table 40 492 0 127 5 0 5 5 0 8 0 art_node 32 119 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semapl 112 6 0 0 1 0 1 1 0 8 0 shmpl 112 11 0 1 1 0 1 1 0 8 0 pool(0xffffffff839a3ee0:shmpl): page inconsistency: page 0xfffffd806c02a000; 24 on list, 10 missing, 35 items per page dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2051 0 540 95 0 95 95 0 8 0 ffsino 296 2051 0 540 117 0 117 117 0 8 0 nchpl 144 2603 0 904 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 2334 0 0 130 0 130 130 0 8 0 namei 1024 8297 0 8297 2 1 1 2 0 8 1 percpumem 16 124 0 76 1 0 1 1 0 8 0 vcpupl 3968 1 0 0 1 0 1 1 0 8 0 vmpool 840 2 0 1 1 0 1 1 0 8 0 kstatmem 264 36 0 14 3 0 3 3 0 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 11243 0 11242 6 1 5 5 1 8 4 plimitpl 152 70 0 53 1 0 1 1 0 8 0 sigapl 424 699 0 650 7 1 6 7 0 8 0 knotepl 120 499 0 0 16 0 16 16 0 8 0 kqueuepl 224 133 0 124 3 0 3 3 0 8 2 pipepl 344 134 0 107 3 0 3 3 0 8 0 fdescpl 528 679 0 647 3 0 3 3 0 8 0 filepl 160 3617 0 3401 15 0 15 15 0 8 4 lockfpl 104 125 0 123 1 0 1 1 0 8 0 lockfspl 48 62 0 60 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 38 0 21 1 0 1 1 0 8 0 ucredpl 104 354 0 340 1 0 1 1 0 8 0 zombiepl 144 652 0 650 1 0 1 1 0 8 0 processpl 1232 699 0 650 5 1 4 5 0 8 0 procpl 664 1162 0 1108 6 0 6 6 0 8 0 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 752 791 0 763 11 0 11 11 0 8 8 mcl64k 65536 4 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 27 0 0 4 0 4 4 0 8 0 mtagpl 96 36 0 0 1 0 1 1 0 8 0 mbufpl 256 335 0 0 21 0 21 21 0 8 0 bufpl 280 4295 0 126 298 0 298 298 0 8 0 anonpl 32 7517 0 0 62 1 61 61 0 246 0 amapchunkpl 152 16748 0 16278 28 0 28 28 0 158 7 amappl16 200 2203 0 2175 12 1 11 11 0 8 6 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 439 0 438 1 0 1 1 0 8 0 amappl12 168 1046 0 1003 3 0 3 3 0 8 0 amappl11 160 28 0 28 1 1 0 1 0 8 0 amappl10 152 51 0 37 1 0 1 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 28 0 26 1 0 1 1 0 8 0 amappl7 128 92 0 90 1 0 1 1 0 8 0 amappl6 120 349 0 336 1 0 1 1 0 8 0 amappl5 112 98 0 88 1 0 1 1 0 8 0 amappl4 104 428 0 396 1 0 1 1 0 8 0 amappl3 96 2760 0 2671 4 1 3 3 0 8 0 amappl2 88 809 0 733 2 0 2 2 0 8 0 amappl1 80 10788 0 10194 16 0 16 16 0 8 1 amappl 88 4567 0 4408 5 0 5 5 0 92 0 uvmvnodes 80 112 0 0 3 0 3 3 0 8 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 1 1 1 0 8 1 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 15 0 2 1 0 1 1 0 8 0 uaddrrnd 24 679 0 647 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 679 0 647 1 0 1 1 0 8 0 vmmpekpl 168 7634 0 7597 3 0 3 3 0 8 0 vmmpepl 168 51267 0 49320 97 0 97 97 0 357 5 vmsppl 488 678 0 647 5 0 5 5 0 8 1 rwobjpl 80 17082 0 16037 27 1 26 26 0 8 1 pdppl 4096 1370 0 1297 101 28 73 84 0 8 0 pvpl 32 14143 0 0 115 0 115 115 0 265 0 pmappl 256 680 0 648 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 292 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(ffffffff837eaff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:153 intr_handler(ffff800037be4150,ffff80000006b400) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x74c69a4d8a80, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837eaff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:153 intr_handler(ffff800037be4150,ffff80000006b400) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x74c69a4d8a80, count: -6 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(ffffffff833a3b1c) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839a3ee0,1,ffff800037bea288) at pool_do_get+0x5df pool_get(ffffffff839a3ee0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bc12fb8,ffff800037bea4e0,186,ffff800037bea430) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bc12fb8,ffff800037bea4e0,ffff800037bea430) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff800037bea4e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800037bea4e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec0c3ea4ae0, count: 7 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833a3b1c) at panic+0x1e5 sys/kern/subr_prf.c:198 pool_do_get(ffffffff839a3ee0,1,ffff800037bea288) at pool_do_get+0x5df pool_get(ffffffff839a3ee0,1) at pool_get+0x162 sys/kern/subr_pool.c:-1 shmget_allocate_segment(ffff80003bc12fb8,ffff800037bea4e0,186,ffff800037bea430) at shmget_allocate_segment+0x1af sys/kern/sysv_shm.c:-1 sys_shmget(ffff80003bc12fb8,ffff800037bea4e0,ffff800037bea430) at sys_shmget+0x195 sys/kern/sysv_shm.c:482 syscall(ffff800037bea4e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800037bea4e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec0c3ea4ae0, count: -8