panic: kernel diagnostic assertion "nlevel >= IPL_NONE" failed: file "/syzkaller/managers/setuid/kernel/sys/arch/amd64/amd64/intr.c", line 699 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 323604 69342 32767 0x10 0x4000000 0 syz-executor.2 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279f709) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281d9e3,ffffffff8283c03e,2bb,ffffffff827a18af) at __assert+0x29 sys/kern/subr_prf.c:157 splraise(f77b8953) at splraise+0xb4 sys/arch/amd64/amd64/intr.c:699 mtx_enter_try(fffffd806f184000) at mtx_enter_try+0x73 sys/kern/kern_lock.c:291 mtx_enter(fffffd806f184000) at mtx_enter+0x4f sys/kern/kern_lock.c:266 knote_remove(ffff80002121a818,fffffd806f184000,fffffd806f184088,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff80002121a818,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff80002121a818) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff80002121a818,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff80002121a818,ffff80002e40f7f0,ffff80002e40f840) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e40f8c0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e40f8c0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75e7435a8fb0, count: 2 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 "nlevel >= IPL_NONE" failed: file "/syzkaller/managers/setuid/kernel/sys/arch/amd64/amd64/intr.c", line 699 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279f709) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281d9e3,ffffffff8283c03e,2bb,ffffffff827a18af) at __assert+0x29 sys/kern/subr_prf.c:157 splraise(f77b8953) at splraise+0xb4 sys/arch/amd64/amd64/intr.c:699 mtx_enter_try(fffffd806f184000) at mtx_enter_try+0x73 sys/kern/kern_lock.c:291 mtx_enter(fffffd806f184000) at mtx_enter+0x4f sys/kern/kern_lock.c:266 knote_remove(ffff80002121a818,fffffd806f184000,fffffd806f184088,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff80002121a818,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff80002121a818) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff80002121a818,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff80002121a818,ffff80002e40f7f0,ffff80002e40f840) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e40f8c0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e40f8c0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75e7435a8fb0, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e40f430 rbx 0xffff800020d59b9f rdx 0 rcx 0xffff80002121a818 rax 0xffff800020d58ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x5478bf939b92d6d0 r11 0xc544703af8514b72 r12 0xffff800020d599a0 r13 0 r14 0 r15 0x1 rip 0xffffffff81b3671c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002e40f420 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.5) pid=506990 stat=onproc flags process=1018 proc=2000 pri=0, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800021285548,0xffff80002121aad0 process=0xffff80002614a9f8 user=0xffff80002e40a000, vmspace=0xfffffd8069b58760 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 69342 252216 50804 32767 2 0x10 syz-executor.2 69342 323604 50804 32767 7 0x4000010 syz-executor.2 69342 212028 50804 32767 2 0x4000010 syz-executor.2 72832 414582 36937 32767 2 0x10 syz-executor.6 72832 250556 36937 32767 3 0x4000090 fsleep syz-executor.6 32305 38712 4936 32767 2 0x10 syz-executor.1 32305 288595 4936 32767 2 0x4000010 syz-executor.1 5852 448480 6506 32767 2 0x10 syz-executor.0 5852 71814 6506 32767 3 0x4000090 fsleep syz-executor.0 55831 370919 0 0 3 0x14200 bored sosplice 36937 338984 72831 32767 3 0x90 nanoslp syz-executor.6 27942 204834 63816 32767 3 0x90 nanoslp syz-executor.7 72831 14898 71154 0 3 0x82 wait syz-executor.6 63816 478890 71154 0 3 0x82 wait syz-executor.7 57907 154173 18465 32767 3 0x90 nanoslp syz-executor.5 29329 126164 75308 32767 2 0x10 syz-executor.3 13253 156405 32439 32767 2 0x10 syz-executor.4 75308 402887 71154 0 3 0x82 wait syz-executor.3 50804 276212 19691 32767 3 0x90 nanoslp syz-executor.2 18465 315222 71154 0 3 0x82 wait syz-executor.5 32439 76348 71154 0 3 0x82 wait syz-executor.4 19691 250866 71154 0 3 0x82 wait syz-executor.2 4936 330970 91107 32767 3 0x90 nanoslp syz-executor.1 6506 493590 53207 32767 3 0x90 nanoslp syz-executor.0 91107 465186 71154 0 3 0x82 wait syz-executor.1 53207 151452 71154 0 3 0x82 wait syz-executor.0 71154 310958 54803 0 3 0x2000082 wait syz-fuzzer 71154 489836 54803 0 3 0x6000082 thrsleep syz-fuzzer 71154 209751 54803 0 3 0x6000082 wait syz-fuzzer 71154 137249 54803 0 3 0x6000082 wait syz-fuzzer 71154 493797 54803 0 3 0x6000082 wait syz-fuzzer 71154 267061 54803 0 3 0x6000082 wait syz-fuzzer 71154 500307 54803 0 3 0x6000082 wait syz-fuzzer 71154 488483 54803 0 3 0x6000082 wait syz-fuzzer 71154 502914 54803 0 3 0x6000082 thrsleep syz-fuzzer 71154 272884 54803 0 3 0x6000082 thrsleep syz-fuzzer 71154 426001 54803 0 3 0x6000082 wait syz-fuzzer 71154 395016 54803 0 3 0x6000082 thrsleep syz-fuzzer 71154 32486 54803 0 3 0x6000082 thrsleep syz-fuzzer 71154 523558 54803 0 3 0x6000082 thrsleep syz-fuzzer 71154 96423 54803 0 3 0x6000082 kqread syz-fuzzer 54803 275688 97326 0 3 0x10008a sigsusp ksh 97326 463877 4467 0 3 0x9a kqread sshd 19392 431259 1 0 3 0x100083 ttyin getty 4467 194394 1 0 3 0x88 kqread sshd 60328 363180 82533 73 3 0x1100090 kqread syslogd 82533 423655 1 0 3 0x100082 netio syslogd 72260 399424 1 0 3 0x100080 kqread resolvd 21050 411304 9807 77 3 0x100092 kqread dhcpleased 31936 194020 9807 77 3 0x100092 kqread dhcpleased 9807 345037 1 0 3 0x80 kqread dhcpleased 61591 286103 0 0 3 0x14200 bored smr 3464 68361 0 0 2 0x14200 zerothread 27791 83904 0 0 3 0x14200 aiodoned aiodoned 27653 22478 0 0 3 0x14200 syncer update 11370 344669 0 0 3 0x14200 cleaner cleaner 32656 393481 0 0 2 0x14200 reaper 15843 64239 0 0 3 0x14200 pgdaemon pagedaemon 78463 19773 0 0 3 0x14200 bored viomb 91091 14318 0 0 3 0x40014200 acpi0 acpi0 1563 484481 0 0 3 0x40014200 idle1 32219 334591 0 0 3 0x14200 bored softnet3 2584 183044 0 0 3 0x14200 bored softnet2 98155 229854 0 0 3 0x14200 bored softnet1 13137 444038 0 0 3 0x14200 bored softnet0 39009 186365 0 0 3 0x14200 bored systqmp 48120 209619 0 0 3 0x14200 bored systq 33920 364105 0 0 3 0x40014200 bored softclock 76152 434563 0 0 3 0x40014200 idle0 1 408606 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 69342 (syz-executor.2) thread 0xffff800021284800 (323604) shared rwlock vmmaplk r = 0 (0xfffffd806a082860) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10189 6409K 6420K 78643K 11267 0 pcb 13 8K 8K 78643K 13 0 rtable 236 6K 6K 78643K 366 0 pf 29 8K 8K 78643K 29 0 ifaddr 44 15K 15K 78643K 46 0 ifgroup 50 2K 2K 78643K 50 0 counters 60 35K 35K 78643K 60 0 ioctlops 0 0K 2K 78643K 29 0 iov 0 0K 16K 78643K 13 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1278 80K 80K 78643K 1390 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 223 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 23 85K 121K 78643K 673 0 sigio 0 0K 0K 78643K 211 0 proc 56 78K 103K 78643K 516 0 subproc 104 6K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 20 0 in_multi 99 7K 7K 78643K 116 0 ether_multi 1 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 73 334K 334K 78643K 73 0 exec 0 0K 1K 78643K 474 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 332 82K 82K 78643K 8723 0 UVM aobj 22 2K 2K 78643K 22 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 14 0 NDP 11 0K 2K 78643K 27 0 temp 63 5913K 5977K 78643K 5228 0 kqueue 12 18K 24K 78643K 59 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 46 0 43 1 0 1 1 0 8 0 rtentry 112 112 0 1 4 0 4 4 0 8 0 unpcb 144 391 0 378 3 0 3 3 0 8 2 syncache 304 20 0 20 2 1 1 1 0 8 1 tcpqe 32 360 0 360 3 2 1 1 0 8 1 tcpcb 808 485 0 475 8 0 8 8 0 8 6 arp 120 18 0 0 1 0 1 1 0 8 0 inpcb 368 707 0 692 8 0 8 8 0 8 6 nd6 136 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 454 0 0 29 0 29 29 0 8 0 art_table 32 455 0 0 4 0 4 4 0 8 0 art_node 16 111 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 0 1 1 0 8 1 semapl 112 221 0 211 1 0 1 1 0 8 0 shmpl 112 19 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2196 0 755 91 0 91 91 0 8 0 ffsino 272 2196 0 755 97 0 97 97 0 8 0 nchpl 144 3114 0 1435 63 0 63 63 0 8 0 uvmvnodes 80 2309 0 0 48 0 48 48 0 8 0 vnodes 216 2309 0 0 129 0 129 129 0 8 0 namei 1024 10455 0 10455 2 1 1 2 0 8 1 percpumem 16 43 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 10667 0 10667 10 4 6 8 1 8 6 plimitpl 152 78 0 55 2 0 2 2 0 8 1 sigapl 424 970 0 917 7 0 7 7 0 8 0 futexpl 64 4813 0 4811 1 0 1 1 0 8 0 knotepl 120 157 0 0 5 0 5 5 0 8 0 kqueuepl 216 80 0 72 1 0 1 1 0 8 0 pipepl 320 407 0 379 9 1 8 8 0 8 5 fdescpl 496 952 0 918 7 2 5 6 0 8 0 filepl 152 4922 0 4684 17 0 17 17 0 8 7 lockfpl 104 67 0 65 1 0 1 1 0 8 0 lockfspl 48 28 0 26 1 0 1 1 0 8 0 sessionpl 144 23 0 7 1 0 1 1 0 8 0 pgrppl 48 30 0 14 1 0 1 1 0 8 0 ucredpl 104 666 0 648 1 0 1 1 0 8 0 zombiepl 144 919 0 917 1 0 1 1 0 8 0 processpl 1072 970 0 917 5 1 4 5 0 8 0 procpl 680 1967 0 1894 8 0 8 8 0 8 1 sosppl 168 15 0 15 1 0 1 1 0 8 1 sockpl 488 1192 0 1161 18 6 12 16 0 8 8 mcl64k 65536 14 0 0 2 0 2 2 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 250 0 0 32 0 32 32 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 268 0 0 17 0 17 17 0 8 0 bufpl 288 5142 0 143 358 0 358 358 0 8 0 anonpl 24 231081 0 220332 70 1 69 69 0 186 0 amapchunkpl 152 28180 0 27318 38 0 38 38 0 158 3 amappl16 200 5988 0 5722 16 0 16 16 0 8 1 amappl15 192 13 0 12 1 0 1 1 0 8 0 amappl14 184 155 0 141 2 1 1 2 0 8 0 amappl13 176 13 0 13 1 1 0 1 0 8 0 amappl12 168 1584 0 1548 2 0 2 2 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 31 0 21 1 0 1 1 0 8 0 amappl9 144 178 0 177 1 0 1 1 0 8 0 amappl8 136 206 0 154 2 0 2 2 0 8 0 amappl7 128 70 0 60 2 0 2 2 0 8 0 amappl6 120 231 0 212 2 1 1 2 0 8 0 amappl5 112 185 0 175 1 0 1 1 0 8 0 amappl4 104 549 0 513 3 1 2 3 0 8 0 amappl3 96 5966 0 5873 3 0 3 3 0 8 0 amappl2 88 1207 0 1136 3 1 2 3 0 8 0 amappl1 80 11735 0 11208 22 9 13 22 0 8 0 amappl 88 8215 0 7975 7 0 7 7 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 21 0 0 1 0 1 1 0 8 0 uaddrrnd 24 952 0 918 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 952 0 918 1 0 1 1 0 8 0 vmmpekpl 168 13305 0 13250 3 0 3 3 0 8 0 vmmpepl 168 77001 0 74735 115 7 108 114 0 357 6 vmsppl 464 951 0 918 7 2 5 6 0 8 0 rwobjpl 56 28403 0 24812 53 2 51 51 0 8 0 pdppl 4096 1912 0 1836 122 40 82 94 0 8 6 pvpl 32 521642 0 504944 363 41 322 362 0 265 182 pmappl 248 951 0 918 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 785 0 43 22 0 22 22 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82bbdff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d841f0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d841f0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_fault(fffffd806a082768,da4fb216000,0,2) at uvm_fault+0x181 sys/uvm/uvm_fault.c:622 upageflttrap(ffff80002470bda0,da4fb216000) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002470bda0) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xda554dbbb70, count: 7 ddb{0}> trace x86_ipi_db(ffffffff82bbdff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d841f0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d841f0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_fault(fffffd806a082768,da4fb216000,0,2) at uvm_fault+0x181 sys/uvm/uvm_fault.c:622 upageflttrap(ffff80002470bda0,da4fb216000) at upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002470bda0) at usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xda554dbbb70, count: -8 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279f709) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281d9e3,ffffffff8283c03e,2bb,ffffffff827a18af) at __assert+0x29 sys/kern/subr_prf.c:157 splraise(f77b8953) at splraise+0xb4 sys/arch/amd64/amd64/intr.c:699 mtx_enter_try(fffffd806f184000) at mtx_enter_try+0x73 sys/kern/kern_lock.c:291 mtx_enter(fffffd806f184000) at mtx_enter+0x4f sys/kern/kern_lock.c:266 knote_remove(ffff80002121a818,fffffd806f184000,fffffd806f184088,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff80002121a818,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff80002121a818) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff80002121a818,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff80002121a818,ffff80002e40f7f0,ffff80002e40f840) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e40f8c0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e40f8c0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75e7435a8fb0, count: 2 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8279f709) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff8281d9e3,ffffffff8283c03e,2bb,ffffffff827a18af) at __assert+0x29 sys/kern/subr_prf.c:157 splraise(f77b8953) at splraise+0xb4 sys/arch/amd64/amd64/intr.c:699 mtx_enter_try(fffffd806f184000) at mtx_enter_try+0x73 sys/kern/kern_lock.c:291 mtx_enter(fffffd806f184000) at mtx_enter+0x4f sys/kern/kern_lock.c:266 knote_remove(ffff80002121a818,fffffd806f184000,fffffd806f184088,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff80002121a818,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff80002121a818) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff80002121a818,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff80002121a818,ffff80002e40f7f0,ffff80002e40f840) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e40f8c0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e40f8c0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75e7435a8fb0, count: -13