panic: WkAeRrNnINeG: l SPdiL agNOnTo sLtOWicER aEDs OsNe rStYioSnC AL"Lp g-0> w0 iErXe_IcTo u0n ta != Stopped at savectx+0xae: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *282195 97509 0 0x2 0 0 syz-executor savectx() at savectx+0xae end trace frame: 0x0, count: 14 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu1: kernel diagnostic assertion "pg->wire_count != 0" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_page.c", line 1250 ddb{0}> trace savectx() at savectx+0xae end trace frame: 0x0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a320cf0 rbx 0 rdx 0 rcx 0xffff80002a263c98 rax 0x31 r8 0xffff80002a320c20 r9 0x81714 acpi_pdirpa+0x6d585 r10 0xdcbd5b84d1aa1275 r11 0x9550c34d9b059a68 r12 0 r13 0 r14 0xffff80002a263c98 r15 0 rip 0xffffffff8117f3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a320c70 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=282195 pid=97509 tcnt=1 stat=onproc flags process=2 proc=0 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003a3efa18,0xffffffff838da008 process=0xffff80003bc0dd00 user=0xffff80002a31b000, vmspace=0xfffffd800d79d5e0 estcpu=26, cpticks=1, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *97509 282195 20093 0 7 0x2 syz-executor 95892 289585 48062 32767 2 0xc90 syz-executor 95892 370011 48062 32767 3 0x4000090 msgwait syz-executor 95892 307717 48062 32767 3 0x4000090 msgwait syz-executor 95892 49645 48062 32767 3 0x4000090 fsleep syz-executor 95092 449882 90690 0 3 0x100082 sbwait arp 90690 482209 9386 0 3 0x10008a sigsusp sh 48062 134290 39586 32767 3 0x90 nanoslp syz-executor 81707 271769 15677 32767 2 0x10 syz-executor 89836 291491 73395 32767 3 0x90 nanoslp syz-executor 19010 117100 68008 32767 2 0x90 syz-executor 75025 46678 82768 32767 2 0x10 syz-executor 9386 67681 24000 0 3 0x80 wait syz-executor 82768 472546 20093 0 3 0x82 wait syz-executor 68008 322467 20093 0 3 0x82 wait syz-executor 15677 475556 20093 0 3 0x82 wait syz-executor 39586 452111 20093 0 3 0x82 wait syz-executor 24000 500932 20093 0 3 0x82 wait syz-executor 73395 455818 20093 0 3 0x82 wait syz-executor 20093 309121 92543 0 3 0x82 nanoslp syz-executor 92543 158484 54893 0 3 0x10008a sigsusp ksh 54893 356165 35752 0 3 0x98 kqread sshd-session 35752 393176 9448 0 3 0x92 kqread sshd-session 77820 212070 1 0 3 0x100083 ttyin getty 9448 262618 1 0 3 0x88 kqread sshd 16009 314530 24693 73 3 0x1100090 kqread syslogd 24693 56834 1 0 3 0x100082 sbwait syslogd 85033 39347 1 0 3 0x100080 kqread resolvd 8556 447079 16083 77 3 0x100092 kqread dhcpleased 10415 470565 16083 77 3 0x100092 kqread dhcpleased 16083 409563 1 0 3 0x80 kqread dhcpleased 90786 454192 0 0 3 0x14200 bored smr 81773 460882 0 0 2 0x14200 zerothread 74689 426272 0 0 3 0x14200 aiodoned aiodoned 69133 504015 0 0 3 0x14200 syncer update 71549 145257 0 0 3 0x14200 cleaner cleaner 92324 449694 0 0 3 0x14200 reaper reaper 25992 342470 0 0 3 0x14200 pgdaemon pagedaemon 73813 435155 0 0 3 0x14200 bored viomb 82412 338830 0 0 3 0x40014200 acpi0 acpi0 98922 456270 0 0 3 0x40014200 idle1 68407 23658 0 0 3 0x14200 bored softnet1 45985 195167 0 0 2 0x14200 softnet0 7311 387592 0 0 3 0x14200 bored systqmp 94941 384318 0 0 3 0x14200 bored systq 94456 415623 0 0 3 0x14200 tmoslp softclockmp 93365 190668 0 0 3 0x40014200 tmoslp softclock 37222 156306 0 0 3 0x40014200 idle0 1 289400 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83999c70) #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 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #3 uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 #4 amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 #5 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #6 uvmspace_exec+0x3b7 sys/uvm/uvm_map.c:3398 #7 sys_execve+0xc31 sys/kern/kern_exec.c:453 #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 97509 (syz-executor) thread 0xffff80002a263c98 (282195) exclusive rwlock amaplk r = 0 (0xfffffd806dac7b88) #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 amap_unref+0x3d sys/uvm/uvm_amap.c:1329 #3 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #4 uvmspace_exec+0x3b7 sys/uvm/uvm_map.c:3398 #5 sys_execve+0xc31 sys/kern/kern_exec.c:453 #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 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a106c8) #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 &uvm.fpageqlock r = 0 (0xffffffff83999c70) #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 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1 #3 uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 #4 amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 #5 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #6 uvmspace_exec+0x3b7 sys/uvm/uvm_map.c:3398 #7 sys_execve+0xc31 sys/kern/kern_exec.c:453 #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 75025 (syz-executor) thread 0xffff8000fffee018 (46678) exclusive rrwlock inode r = 0 (0xfffffd80681c27c8) #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+0xbd sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807a305698) #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+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11046 12014K 12034K 166960K 12143 0 pcb 17 12K 12K 166960K 17 0 rtable 181 5K 6K 166960K 347 0 pf 27 16K 16K 166960K 31 0 ifaddr 32 5K 7K 166960K 42 0 ifgroup 42 1K 2K 166960K 50 0 sysctl 3 1K 9K 166960K 8 0 counters 66 36K 37K 166960K 70 0 ioctlops 0 0K 2K 166960K 29 0 iov 0 0K 24K 166960K 19 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 84K 166960K 1559 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 22 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 62K 125K 166960K 455 0 sigio 0 0K 0K 166960K 6 0 proc 58 99K 180K 166960K 506 0 subproc 54 3K 4K 166960K 225 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 88 0 in_multi 67 5K 6K 166960K 94 0 ether_multi 1 0K 0K 166960K 2 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 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 384 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 212 146K 180K 166960K 5797 0 UVM aobj 13 2K 3K 166960K 17 0 pinsyscall 40 80K 116K 166960K 1526 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 16 0 NDP 9 0K 1K 166960K 25 0 temp 43 8673K 8738K 166960K 5244 0 kqueue 13 20K 28K 166960K 63 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 62 0 58 1 0 1 1 0 8 0 rtentry 176 108 0 26 5 0 5 5 0 8 0 unpcb 144 359 0 344 4 0 4 4 0 8 3 syncache 336 12 0 12 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 181 0 175 5 0 5 5 0 8 3 arp 136 17 0 4 1 0 1 1 0 8 0 ipq 40 5 0 0 1 0 1 1 0 8 0 ipqe 40 7 0 1 1 0 1 1 0 8 0 inpcb 328 350 0 341 5 0 5 5 0 8 3 nd6 152 26 0 9 1 0 1 1 0 8 0 kcovpl 48 25 0 19 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 421 0 94 27 0 27 27 0 8 4 art_table 40 422 0 94 5 0 5 5 0 8 0 art_node 32 108 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 9 1 0 1 1 0 8 0 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 14 0 4 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 1999 0 470 96 0 96 96 0 8 0 ffsino 296 1999 0 470 118 0 118 118 0 8 0 nchpl 144 2542 0 840 64 0 64 64 0 8 0 vnodes 216 2233 0 0 125 0 125 125 0 8 0 namei 1024 7997 0 7996 1 0 1 1 0 8 0 percpumem 16 50 0 2 1 0 1 1 0 8 0 kstatmem 264 24 0 4 2 0 2 2 0 8 0 scxspl 216 8460 0 8460 11 3 8 8 1 8 8 plimitpl 152 246 0 225 2 0 2 2 0 8 1 sigapl 424 709 0 662 7 0 7 7 0 8 0 knotepl 120 284 0 0 9 0 9 9 0 8 0 kqueuepl 224 87 0 78 2 0 2 2 0 8 1 pipepl 344 192 0 165 4 0 4 4 0 8 0 fdescpl 528 693 0 663 4 0 4 4 0 8 1 filepl 160 3524 0 3342 16 0 16 16 0 8 7 lockfpl 104 91 0 89 1 0 1 1 0 8 0 lockfspl 48 34 0 32 1 0 1 1 0 8 0 sessionpl 144 46 0 32 1 0 1 1 0 8 0 pgrppl 48 76 0 55 1 0 1 1 0 8 0 ucredpl 104 540 0 524 1 0 1 1 0 8 0 zombiepl 144 663 0 662 1 0 1 1 0 8 0 processpl 1232 709 0 662 5 0 5 5 0 8 0 procpl 664 1160 0 1110 7 0 7 7 0 8 1 sosppl 176 4 0 4 1 0 1 1 0 8 1 sockpl 752 775 0 747 12 1 11 12 0 8 7 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 114 0 0 15 0 15 15 0 8 0 mcl2k 2048 39 0 0 5 0 5 5 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1211 0 0 76 0 76 76 0 8 0 bufpl 280 4993 0 119 349 0 349 349 0 8 0 anonpl 32 9401 0 0 76 0 76 76 0 246 0 amapchunkpl 152 32796 0 32134 42 0 42 42 0 158 12 amappl16 200 2921 0 2902 16 4 12 14 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 6 0 6 2 1 1 1 0 8 1 amappl13 176 398 0 396 1 0 1 1 0 8 0 amappl12 168 1043 0 1004 3 0 3 3 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 45 0 35 1 0 1 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 70 0 69 1 0 1 1 0 8 0 amappl6 120 270 0 257 1 0 1 1 0 8 0 amappl5 112 82 0 75 1 0 1 1 0 8 0 amappl4 104 512 0 485 1 0 1 1 0 8 0 amappl3 96 2760 0 2684 3 0 3 3 0 8 0 amappl2 88 871 0 800 3 0 3 3 0 8 1 amappl1 80 12012 0 11464 15 0 15 15 0 8 0 amappl 88 5013 0 4874 5 0 5 5 0 92 0 uvmvnodes 80 118 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 128 253 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 16 0 4 1 0 1 1 0 8 0 uaddrrnd 24 693 0 662 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 693 0 662 1 0 1 1 0 8 0 vmmpekpl 168 8414 0 8355 3 0 3 3 0 8 0 vmmpepl 168 54934 0 53207 105 0 105 105 0 357 12 vmsppl 488 692 0 662 7 1 6 6 0 8 0 rwobjpl 80 18977 0 18043 26 0 26 26 0 8 1 pdppl 4096 1394 0 1324 112 30 82 98 0 8 12 pvpl 32 27584 0 0 223 0 223 223 0 265 0 pmappl 256 692 0 662 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 351 0 33 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end trace frame: 0x0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,20) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,20) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(20) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x126 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(30) at db_putchar+0x126 sys/ddb/db_output.c:153 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff8338ef81) at db_printf+0x9b sys/kern/subr_prf.c:-1 panic(ffffffff833b6ae5) at panic+0x103 sys/kern/subr_prf.c:217 __assert(ffffffff833f33db,ffffffff8334251b,4e2,ffffffff83342550) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pageunwire(fffffd8008b9b550) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249 uvm_fault_unwire_locked(fffffd806cb14ba0,cce7d411000,cce7d810000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790 uvm_unmap_kill_entry_withlock(fffffd806cb14ba0,fffffd806d1cbe08,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1860 end trace frame: 0xffff80003bc0a330, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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 x86_bus_space_io_read_1(3f8,5) at x86_bus_space_io_read_1+0x37 sys/arch/amd64/amd64/bus_space.c:670 comcnputc(800,20) at comcnputc+0x250 comcn_read_reg sys/dev/ic/com.c:1655 [inline] comcnputc(800,20) at comcnputc+0x250 sys/dev/ic/com.c:1269 cnputc(20) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x126 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(30) at db_putchar+0x126 sys/ddb/db_output.c:153 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff8338ef81) at db_printf+0x9b sys/kern/subr_prf.c:-1 panic(ffffffff833b6ae5) at panic+0x103 sys/kern/subr_prf.c:217 __assert(ffffffff833f33db,ffffffff8334251b,4e2,ffffffff83342550) at __assert+0x29 sys/kern/subr_prf.c:-1 uvm_pageunwire(fffffd8008b9b550) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1249 uvm_fault_unwire_locked(fffffd806cb14ba0,cce7d411000,cce7d810000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790 uvm_unmap_kill_entry_withlock(fffffd806cb14ba0,fffffd806d1cbe08,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1860 uvm_map_teardown(fffffd806cb14ba0) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] uvm_map_teardown(fffffd806cb14ba0) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2491 exit1(ffff8000fffe6550,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff8000fffe6550,ffff80003bc0a4c0,ffff80003bc0a410) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003bc0a4c0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bc0a4c0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7af56fdaf060, count: -19