panic: mtx 0xffffffff83979c08: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *270169 59160 32767 0x10 0 1 syz-executor 67257 45429 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83334540) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83979c08) at mtx_enter_try+0x1da mtx_enter(ffffffff83979c08) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086e8908) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806a5ac808,0,ffff80003c4bfb78,ffff80003c4bfb5c,0,2,dedbf084e6f9a0bf,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfc10,ffff80003c4bfbf8) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfd10) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bc42208,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4bff20,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4bff20) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77125f9d1ac0, 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: mtx 0xffffffff83979c08: locking against myself ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83334540) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83979c08) at mtx_enter_try+0x1da mtx_enter(ffffffff83979c08) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086e8908) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806a5ac808,0,ffff80003c4bfb78,ffff80003c4bfb5c,0,2,dedbf084e6f9a0bf,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfc10,ffff80003c4bfbf8) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfd10) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bc42208,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4bff20,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4bff20) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77125f9d1ac0, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4bf8b0 rbx 0xffff8000299eeddf rdx 0 rcx 0xffff80003b85a560 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfe1ff45d985ae646 r11 0xd58497e522f6613d r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff82ac0025 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4bf8a0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=270169 pid=59160 tcnt=4 stat=onproc flags process=10 proc=0 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003b85bcb8,0xffff80003b85a040 process=0xffff80003b85c9f0 user=0xffff80003c4ba000, vmspace=0xfffffd806bc42208 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *59160 270169 94901 32767 7 0x10 syz-executor 59160 523426 94901 32767 3 0x4000090 fsleep syz-executor 59160 264907 94901 32767 3 0x4000010 biowait syz-executor 59160 229322 94901 32767 3 0x4000090 fsleep syz-executor 91012 359630 0 0 3 0x14200 bored sosplice 21471 116910 10231 32767 2 0x10 syz-executor 21471 54935 10231 32767 3 0x4000090 fsleep syz-executor 21471 2165 10231 32767 3 0x4000090 fsleep syz-executor 21471 36469 10231 32767 3 0x4000090 fsleep syz-executor 99750 101390 57052 32767 2 0x10 syz-executor 99750 378844 57052 32767 3 0x4000090 fsleep syz-executor 96417 75873 7014 32767 2 0x10 syz-executor 96417 360431 7014 32767 3 0x4000090 fifow syz-executor 96417 329295 7014 32767 3 0x4000090 fsleep syz-executor 66222 209088 3564 32767 2 0x10 syz-executor 66222 493981 3564 32767 3 0x4000090 fsleep syz-executor 24485 216489 31612 32767 3 0x90 nanoslp syz-executor 24485 181836 31612 32767 3 0x4000090 piperd syz-executor 24485 168781 31612 32767 3 0x4000090 fsleep syz-executor 86230 436551 37306 32767 3 0x90 nanoslp syz-executor 86230 258306 37306 32767 3 0x4000090 fifor syz-executor 86230 251516 37306 32767 3 0x4000090 fsleep syz-executor 45429 67257 87468 32767 7 0x10 syz-executor 45429 291964 87468 32767 3 0x4000090 ttyin syz-executor 45429 210057 87468 32767 3 0x4000090 sbwait syz-executor 45429 458864 87468 32767 3 0x4000090 fsleep syz-executor 7014 26372 26595 32767 3 0x90 nanoslp syz-executor 3564 63686 75022 32767 3 0x90 nanoslp syz-executor 57052 82870 84448 32767 3 0x90 nanoslp syz-executor 31612 68098 7067 32767 3 0x90 nanoslp syz-executor 94901 430039 41919 32767 3 0x90 nanoslp syz-executor 87468 358824 82712 32767 3 0x90 nanoslp syz-executor 10231 14224 20351 32767 3 0x90 nanoslp syz-executor 37306 52174 9832 32767 3 0x90 nanoslp syz-executor 82712 342099 43949 0 3 0x82 wait syz-executor 41919 365000 43949 0 3 0x82 wait syz-executor 75022 200118 43949 0 3 0x82 wait syz-executor 7067 260304 43949 0 3 0x82 wait syz-executor 26595 298360 43949 0 3 0x82 wait syz-executor 9832 9849 43949 0 3 0x82 wait syz-executor 20351 8340 43949 0 3 0x82 wait syz-executor 84448 277506 43949 0 3 0x82 wait syz-executor 43949 148461 87852 0 3 0x82 kqread syz-executor 87852 188988 40168 0 3 0x10008a sigsusp ksh 40168 54100 37509 0 3 0x98 kqread sshd-session 37509 319468 10574 0 3 0x92 kqread sshd-session 26592 457177 1 0 3 0x100083 ttyin getty 10574 379593 1 0 3 0x88 kqread sshd 63113 88055 38608 73 3 0x1100090 kqread syslogd 38608 134471 1 0 3 0x100082 sbwait syslogd 30992 480154 1 0 3 0x100080 kqread resolvd 96931 231155 90178 77 3 0x100092 kqread dhcpleased 59404 148849 90178 77 3 0x100092 kqread dhcpleased 90178 312967 1 0 3 0x80 kqread dhcpleased 88326 482245 0 0 3 0x14200 bored smr 5060 486543 0 0 2 0x14200 zerothread 21296 317888 0 0 3 0x14200 aiodoned aiodoned 64531 267938 0 0 3 0x14200 syncer update 35634 403953 0 0 3 0x14200 cleaner cleaner 86654 289617 0 0 3 0x14200 reaper reaper 38092 435394 0 0 3 0x14200 pgdaemon pagedaemon 88520 440520 0 0 3 0x14200 bored viomb 55784 1334 0 0 3 0x40014200 acpi0 acpi0 26117 72934 0 0 3 0x40014200 idle1 33210 62511 0 0 3 0x14200 bored softnet7 75484 484325 0 0 3 0x14200 bored softnet6 58693 218131 0 0 3 0x14200 bored softnet5 44923 481709 0 0 3 0x14200 bored softnet4 78630 444591 0 0 3 0x14200 bored softnet3 85583 330 0 0 3 0x14200 bored softnet2 85730 63281 0 0 3 0x14200 bored softnet1 80526 261236 0 0 3 0x14200 bored softnet0 39352 261560 0 0 3 0x14200 bored systqmp 48838 432551 0 0 3 0x14200 bored systq 43476 439236 0 0 3 0x14200 tmoslp softclockmp 73705 519396 0 0 3 0x40014200 tmoslp softclock 31716 480985 0 0 3 0x40014200 idle0 1 364099 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83979c18) #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 uvn_get+0x674 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 59160 (syz-executor) thread 0xffff80003b85a560 (270169) exclusive rwlock uobjlk r = 0 (0xfffffd8069d447d8) #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 uvn_io+0x667 sys/uvm/uvm_vnode.c:1298 #3 uvn_get+0x31d sys/uvm/uvm_vnode.c:1102 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83979c18) #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 uvn_get+0x674 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 59160 (syz-executor) thread 0xffff80003b85a7f8 (264907) exclusive rrwlock inode r = 0 (0xfffffd806b84c8f0) #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_ftruncate+0x1c1 sys/kern/vfs_syscalls.c:2916 #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 10956K 10968K 166960K 11269 0 pcb 17 12K 12K 166960K 17 0 rtable 207 5K 5K 166960K 253 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 12K 166960K 2 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1337 84K 84K 166960K 1353 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 26 97K 121K 166960K 174 0 proc 58 99K 147K 166960K 477 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 8 0 in_multi 99 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 343 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 267 155K 163K 166960K 3132 0 UVM aobj 5 2K 2K 166960K 6 0 pinsyscall 47 94K 114K 166960K 1171 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 2 0 NDP 27 2K 2K 166960K 27 0 temp 34 8638K 8702K 166960K 3744 0 kqueue 14 22K 24K 166960K 31 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 36 0 32 1 0 1 1 0 8 0 rtentry 176 96 0 1 5 0 5 5 0 8 0 unpcb 144 61 0 35 2 0 2 2 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 22 0 14 1 0 1 1 0 8 0 arp 128 10 0 0 1 0 1 1 0 8 0 inpcb 328 86 0 68 2 0 2 2 0 8 0 nd6 144 17 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 256 439 0 0 28 0 28 28 0 8 0 art_table 40 440 0 0 5 0 5 5 0 8 0 art_node 32 96 0 11 1 0 1 1 0 8 0 shmpl 112 3 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1592 0 81 95 0 95 95 0 8 0 ffsino 296 1592 0 81 117 0 117 117 0 8 0 nchpl 144 1822 0 138 63 0 63 63 0 8 0 uvmvnodes 80 1673 0 0 35 0 35 35 0 8 0 vnodes 216 1673 0 0 93 0 93 93 0 8 0 namei 1024 5285 0 5285 1 0 1 1 0 8 1 percpumem 16 49 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 6505 0 6503 3 1 2 2 1 8 1 plimitpl 152 40 0 15 2 0 2 2 0 8 1 sigapl 424 450 0 389 8 0 8 8 0 8 0 knotepl 120 306 0 0 10 0 10 10 0 8 0 kqueuepl 224 29 0 17 1 0 1 1 0 8 0 pipepl 344 105 0 76 3 0 3 3 0 8 0 fdescpl 528 427 0 389 3 0 3 3 0 8 0 filepl 160 1463 0 1226 10 0 10 10 0 8 0 lockfpl 104 18 0 15 1 0 1 1 0 8 0 lockfspl 48 10 0 7 1 0 1 1 0 8 0 sessionpl 144 22 0 6 1 0 1 1 0 8 0 pgrppl 48 32 0 8 1 0 1 1 0 8 0 ucredpl 104 121 0 102 1 0 1 1 0 8 0 zombiepl 144 389 0 389 1 0 1 1 0 8 1 processpl 1248 450 0 389 7 1 6 6 0 8 0 procpl 664 515 0 437 7 0 7 7 0 8 0 sockpl 752 186 0 138 5 0 5 5 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 131 0 0 17 0 17 17 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 173 0 0 11 0 11 11 0 8 0 bufpl 280 2854 0 116 196 0 196 196 0 8 0 anonpl 32 3688 0 0 30 0 30 30 0 246 0 amapchunkpl 152 9129 0 8209 40 4 36 36 0 158 0 amappl16 200 1506 0 1485 5 0 5 5 0 8 3 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 104 0 94 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 0 1 1 0 8 1 amappl12 168 1020 0 982 2 0 2 2 0 8 0 amappl11 160 44 0 34 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 0 1 1 0 8 1 amappl9 144 255 0 255 1 0 1 1 0 8 1 amappl8 136 17 0 15 1 0 1 1 0 8 0 amappl7 128 95 0 85 1 0 1 1 0 8 0 amappl6 120 165 0 162 1 0 1 1 0 8 0 amappl5 112 111 0 105 1 0 1 1 0 8 0 amappl4 104 253 0 238 1 0 1 1 0 8 0 amappl3 96 1339 0 1201 4 0 4 4 0 8 0 amappl2 88 601 0 546 2 0 2 2 0 8 0 amappl1 80 8100 0 7522 14 0 14 14 0 8 0 amappl 88 2511 0 2307 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 5 0 1 1 0 1 1 0 8 0 uaddrrnd 24 427 0 389 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 427 0 389 1 0 1 1 0 8 0 vmmpekpl 168 4985 0 4946 2 0 2 2 0 8 0 vmmpepl 168 33170 0 31004 100 0 100 100 0 357 0 vmsppl 488 426 0 389 7 1 6 6 0 8 0 rwobjpl 80 13547 0 11013 54 0 54 54 0 8 0 pdppl 4096 862 0 778 106 10 96 96 0 8 12 pvpl 32 10265 0 0 83 0 83 83 0 265 0 pmappl 256 426 0 389 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 276 0 13 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8383dff0) 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(ffffffff838a7b10) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838a7b10) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c465790,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_const_cmp4(ffff80002a36f778,ffff80003c4659d0) at __sanitizer_cov_trace_const_cmp4 syscall(ffff80003c4659d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4659d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d0fcf5aaa40, count: 6 ddb{0}> trace x86_ipi_db(ffffffff8383dff0) 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(ffffffff838a7b10) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838a7b10) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c465790,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_const_cmp4(ffff80002a36f778,ffff80003c4659d0) at __sanitizer_cov_trace_const_cmp4 syscall(ffff80003c4659d0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4659d0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d0fcf5aaa40, count: -9 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(ffffffff83334540) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83979c08) at mtx_enter_try+0x1da mtx_enter(ffffffff83979c08) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086e8908) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806a5ac808,0,ffff80003c4bfb78,ffff80003c4bfb5c,0,2,dedbf084e6f9a0bf,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfc10,ffff80003c4bfbf8) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfd10) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bc42208,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4bff20,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4bff20) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77125f9d1ac0, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83334540) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83979c08) at mtx_enter_try+0x1da mtx_enter(ffffffff83979c08) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086e8908) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086e8908) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806a5ac808,0,ffff80003c4bfb78,ffff80003c4bfb5c,0,2,dedbf084e6f9a0bf,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfc10,ffff80003c4bfbf8) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4bfd90,ffff80003c4bfdc8,ffff80003c4bfd10) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bc42208,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4bff20,2000000000c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4bff20) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77125f9d1ac0, count: -13