panic: kernel diagnostic assertion "pg->wire_count == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1326 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 2440 26377 0 0 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b1e51) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0b37,ffffffff833ded0e,52e,ffffffff8340579f) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagedequeue(fffffd800810b980) at uvm_pagedequeue+0x2dd sys/uvm/uvm_page.c:1324 uvn_flush(fffffd806aaf8100,0,0,19) at uvn_flush+0xb8f sys/uvm/uvm_vnode.c:818 uvn_detach(fffffd806aaf8100) at uvn_detach+0xcf sys/uvm/uvm_vnode.c:344 uvm_unmap_detach(ffff800031fc8960,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806ec2b5c8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff80003c424028,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80003c424028,ffff800031fc8b30,ffff800031fc8a80) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800031fc8b30) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fc8b30) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ddd7a3c7f90, count: 3 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: kernel diagnostic assertion "pg->wire_count == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 1326 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b1e51) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0b37,ffffffff833ded0e,52e,ffffffff8340579f) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagedequeue(fffffd800810b980) at uvm_pagedequeue+0x2dd sys/uvm/uvm_page.c:1324 uvn_flush(fffffd806aaf8100,0,0,19) at uvn_flush+0xb8f sys/uvm/uvm_vnode.c:818 uvn_detach(fffffd806aaf8100) at uvn_detach+0xcf sys/uvm/uvm_vnode.c:344 uvm_unmap_detach(ffff800031fc8960,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806ec2b5c8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff80003c424028,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80003c424028,ffff800031fc8b30,ffff800031fc8a80) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800031fc8b30) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fc8b30) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ddd7a3c7f90, count: -12 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800031fc8650 rbx 0xffff8000299dee07 rdx 0 rcx 0xffff80003c424028 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x7fc3f513249010e9 r11 0xd2a0194cbce2db46 r12 0xffff8000299dec08 r13 0 r14 0 r15 0x1 rip 0xffffffff814f9375 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800031fc8640 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=348192 pid=27291 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c424028 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000fffe6fb0,0xffff80003c4254f8 process=0xffff80003c40c9c0 user=0xffff800031fc3000, vmspace=0xfffffd806ec2b5c8 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 36760 16148 86538 0 2 0 syz-executor 26377 2440 8479 0 7 0 syz-executor 26377 48268 8479 0 2 0x4000000 syz-executor 19523 383840 50434 0 2 0 syz-executor 19523 435324 50434 0 3 0x4000080 kqread syz-executor 19523 269664 50434 0 3 0x4000080 fsleep syz-executor 18903 367779 0 0 3 0x14200 acct acct 79605 194178 1 0 3 0x100083 ttyin getty 8479 167735 11840 0 3 0x82 nanoslp syz-executor 86538 19824 11840 0 3 0x82 nanoslp syz-executor 80491 404787 11840 0 3 0x82 nanoslp syz-executor 8735 85919 11840 0 3 0x82 nanoslp syz-executor 50434 413986 11840 0 3 0x82 nanoslp syz-executor 49069 424206 11840 0 3 0x82 wait syz-executor 99488 165857 11840 0 3 0x82 wait syz-executor 88256 204235 11840 0 3 0x82 nanoslp syz-executor 11840 40258 49529 0 3 0x82 kqread syz-executor 49529 438268 71237 0 3 0x10008a sigsusp ksh 71237 56060 52575 0 3 0x98 kqread sshd-session 52575 337937 34689 0 3 0x92 kqread sshd-session 34689 111948 1 0 3 0x88 kqread sshd 52573 160450 28960 74 3 0x1100092 bpf pflogd 28960 248109 1 0 3 0x80 sbwait pflogd 83543 240698 78083 73 3 0x1100090 kqread syslogd 78083 53123 1 0 3 0x100082 sbwait syslogd 33297 140306 1 0 3 0x100080 kqread resolvd 594 209216 48746 77 3 0x100092 kqread dhcpleased 46037 450597 48746 77 3 0x100092 kqread dhcpleased 48746 424950 1 0 3 0x80 kqread dhcpleased 97155 297319 0 0 3 0x14200 bored smr 36831 33700 0 0 2 0x14200 zerothread 54614 56976 0 0 3 0x14200 aiodoned aiodoned 3523 116273 0 0 3 0x14200 syncer update 63657 120434 0 0 3 0x14200 cleaner cleaner 11839 168218 0 0 3 0x14200 reaper reaper 89415 301305 0 0 3 0x14200 pgdaemon pagedaemon 10525 144482 0 0 3 0x14200 bored viomb 12212 504027 0 0 3 0x40014200 acpi0 acpi0 4569 154576 0 0 3 0x40014200 idle1 20759 221087 0 0 3 0x14200 bored softnet1 61589 272850 0 0 3 0x14200 bored softnet0 26565 467902 0 0 3 0x14200 smrbar systqmp 43731 508637 0 0 3 0x14200 bored systq 59563 374986 0 0 3 0x14200 tmoslp softclockmp 13609 131719 0 0 3 0x40014200 tmoslp softclock 46768 426825 0 0 3 0x40014200 idle0 1 484561 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff8398cbf8) #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+0x4b4 sys/kern/kern_lock.c:487 #2 uvn_flush+0x71e sys/uvm/uvm_vnode.c:726 #3 uvn_detach+0xcf sys/uvm/uvm_vnode.c:344 #4 uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 #5 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 #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:775 #9 Xsyscall+0x128 Process 26565 (systqmp) thread 0xffff8000ffffe530 (467902) shared rwlock systqmp r = 0 (0xffffffff83803a08) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10210 11042K 11413K 166960K 12346 0 pcb 18 15K 17K 166960K 206 0 rtable 191 6K 7K 166960K 577 0 pf 38 18K 81K 166960K 102 0 ifaddr 38 6K 7K 166960K 73 0 ifgroup 58 2K 2K 166960K 118 0 sysctl 3 1K 9K 166960K 10 0 counters 72 37K 38K 166960K 120 0 ioctlops 0 0K 4K 166960K 1608 0 iov 0 0K 16K 166960K 25 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 89K 166960K 2289 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 23 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 686 0 sigio 1 0K 0K 166960K 34 0 proc 73 115K 164K 166960K 627 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 68 0 in_multi 75 5K 7K 166960K 127 0 ether_multi 1 0K 0K 166960K 7 0 mrt 2 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 450 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 241 159K 174K 166960K 8215 0 UVM aobj 23 12K 12K 166960K 29 0 pinsyscall 42 84K 102K 166960K 1826 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 33 0 NDP 13 0K 2K 166960K 46 0 temp 59 8675K 8798K 166960K 24413 0 kqueue 14 22K 31K 166960K 138 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 66 0 63 1 0 1 1 0 8 0 rtentry 176 201 0 118 6 0 6 6 0 8 0 unpcb 144 542 0 524 7 5 2 6 0 8 1 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpcb 736 215 0 210 7 3 4 4 0 8 3 arp 136 53 0 37 1 0 1 1 0 8 0 inpcb 328 671 0 658 11 7 4 7 0 8 2 nd6 152 27 0 6 1 0 1 1 0 8 0 pkpcb 40 5 0 5 3 2 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 15 0 14 3 2 1 1 0 8 0 pppxif 1504 7 0 7 3 2 1 1 0 8 1 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 9 0 2 1 0 1 1 0 482 0 pffrnode 88 6 0 1 1 0 1 1 0 8 0 pffrent 40 13 0 6 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 pfrktable 1344 4 0 4 1 1 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 58 0 2 1 0 1 1 0 8 0 pfstkey 128 58 0 2 2 0 2 2 0 8 0 pfstate 448 57 0 2 7 0 7 7 0 8 0 pfrule 1344 25 0 20 2 1 1 2 0 8 0 rttmr 136 4 0 4 2 2 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 622 0 272 29 4 25 29 0 8 0 art_table 40 624 0 272 5 0 5 5 0 8 0 art_node 32 201 0 126 2 0 2 2 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 22 0 6 1 0 1 1 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 3054 0 1547 95 0 95 95 0 8 0 ffsino 296 3054 0 1547 117 0 117 117 0 8 0 nchpl 144 4010 0 2301 64 0 64 64 0 8 0 vnodes 216 3458 0 0 193 0 193 193 0 8 0 namei 1024 13436 0 13436 4 3 1 2 0 8 1 percpumem 16 75 0 24 1 0 1 1 0 8 0 vcpupl 3968 4 0 0 1 0 1 1 0 8 0 vmpool 848 4 0 0 1 0 1 1 0 8 0 kstatmem 264 62 0 34 3 1 2 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 12508 0 12508 4 3 1 3 1 8 1 plimitpl 152 87 0 70 1 0 1 1 0 8 0 sigapl 424 1002 0 953 7 1 6 7 0 8 0 knotepl 120 778 0 0 24 0 24 24 0 8 0 kqueuepl 224 288 0 276 7 5 2 5 0 8 1 pipepl 344 171 0 144 3 0 3 3 0 8 0 fdescpl 528 982 0 951 3 0 3 3 0 8 0 filepl 160 6695 0 6464 29 16 13 20 0 8 2 lockfpl 104 230 0 227 1 0 1 1 0 8 0 lockfspl 48 93 0 90 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 39 0 22 1 0 1 1 0 8 0 ucredpl 104 1822 0 1808 1 0 1 1 0 8 0 zombiepl 144 958 0 953 1 0 1 1 0 8 0 processpl 1232 1002 0 953 5 0 5 5 0 8 0 procpl 664 1950 0 1898 6 0 6 6 0 8 0 sosppl 176 1 0 1 1 1 0 1 0 8 0 sockpl 752 1295 0 1261 30 23 7 24 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 125 0 0 16 0 16 16 0 8 0 mcl2k 2048 41 0 0 6 0 6 6 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 252 0 0 16 0 16 16 0 8 0 bufpl 280 4129 0 128 286 0 286 286 0 8 0 anonpl 32 9566 0 0 78 0 78 78 0 246 0 amapchunkpl 152 26643 0 26171 36 13 23 31 0 158 1 amappl16 200 3071 0 3032 19 15 4 15 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 39 0 39 1 1 0 1 0 8 0 amappl13 176 429 0 428 1 0 1 1 0 8 0 amappl12 168 1360 0 1319 3 0 3 3 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 47 0 33 1 0 1 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 34 0 32 1 0 1 1 0 8 0 amappl7 128 106 0 102 1 0 1 1 0 8 0 amappl6 120 292 0 279 1 0 1 1 0 8 0 amappl5 112 95 0 85 1 0 1 1 0 8 0 amappl4 104 471 0 442 1 0 1 1 0 8 0 amappl3 96 5085 0 4981 5 1 4 4 0 8 0 amappl2 88 553 0 493 2 0 2 2 0 8 0 amappl1 80 11642 0 11055 14 1 13 14 0 8 0 amappl 88 7375 0 7212 5 0 5 5 0 92 0 uvmvnodes 80 121 0 0 3 0 3 3 0 8 0 dma8192 8192 1 0 1 1 1 0 1 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 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 28 0 6 1 0 1 1 0 8 0 uaddrrnd 24 982 0 951 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 982 0 951 1 0 1 1 0 8 0 vmmpekpl 168 9607 0 9572 3 0 3 3 0 8 0 vmmpepl 168 69032 0 67106 98 9 89 98 0 357 1 vmsppl 488 981 0 950 5 1 4 5 0 8 0 rwobjpl 80 20694 0 19626 27 3 24 27 0 8 0 pdppl 4096 1980 0 1904 104 28 76 86 0 8 0 pvpl 32 17786 0 0 144 0 144 144 0 265 0 pmappl 256 985 0 950 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 301 0 44 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837cbff0) 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(ffffffff838f6ec0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838f6ec0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x735842f502b0, count: 8 ddb{0}> trace x86_ipi_db(ffffffff837cbff0) 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(ffffffff838f6ec0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff838f6ec0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x735842f502b0, count: -7 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(ffffffff833b1e51) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0b37,ffffffff833ded0e,52e,ffffffff8340579f) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagedequeue(fffffd800810b980) at uvm_pagedequeue+0x2dd sys/uvm/uvm_page.c:1324 uvn_flush(fffffd806aaf8100,0,0,19) at uvn_flush+0xb8f sys/uvm/uvm_vnode.c:818 uvn_detach(fffffd806aaf8100) at uvn_detach+0xcf sys/uvm/uvm_vnode.c:344 uvm_unmap_detach(ffff800031fc8960,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806ec2b5c8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff80003c424028,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80003c424028,ffff800031fc8b30,ffff800031fc8a80) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800031fc8b30) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fc8b30) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ddd7a3c7f90, count: 3 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b1e51) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833f0b37,ffffffff833ded0e,52e,ffffffff8340579f) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pagedequeue(fffffd800810b980) at uvm_pagedequeue+0x2dd sys/uvm/uvm_page.c:1324 uvn_flush(fffffd806aaf8100,0,0,19) at uvn_flush+0xb8f sys/uvm/uvm_vnode.c:818 uvn_detach(fffffd806aaf8100) at uvn_detach+0xcf sys/uvm/uvm_vnode.c:344 uvm_unmap_detach(ffff800031fc8960,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364 uvm_map_teardown(fffffd806ec2b5c8) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2525 exit1(ffff80003c424028,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff80003c424028,ffff800031fc8b30,ffff800031fc8a80) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff800031fc8b30) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800031fc8b30) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ddd7a3c7f90, count: -12