panic: mtx 0xffffffff8392a1c8: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *121214 30582 0 0 0 1 syz-executor 113462 43537 0 0 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e52da) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8392a1c8) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8392a1c8) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008751230) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805ea651f0,0,ffff80003c428508,ffff80003c4284e4,0,2,f3de73d8a8d079c6,ffff80003c428760) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c428728,ffff80003c428760,ffff80003c428590,ffff80003c428598) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c428728,ffff80003c428760,ffff80003c4286a0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806b8b8d40,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4288b0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c4288b0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7559349bca80, 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 0xffffffff8392a1c8: locking against myself ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e52da) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8392a1c8) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8392a1c8) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008751230) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805ea651f0,0,ffff80003c428508,ffff80003c4284e4,0,2,f3de73d8a8d079c6,ffff80003c428760) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c428728,ffff80003c428760,ffff80003c428590,ffff80003c428598) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c428728,ffff80003c428760,ffff80003c4286a0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806b8b8d40,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4288b0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c4288b0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7559349bca80, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c428250 rbx 0xffff8000299eedcf rdx 0 rcx 0xffff8000ffff0cf0 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xcb81dd34b1c7bfac r11 0xd89af444662365a4 r12 0xffff8000299eebd0 r13 0 r14 0 r15 0x1 rip 0xffffffff822d5785 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c428240 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=121214 pid=30582 tcnt=3 stat=onproc flags process=0 proc=0 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff1210,0xffff8000ffff0a70 process=0xffff80003c464978 user=0xffff80003c423000, vmspace=0xfffffd806b8b8d40 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *30582 121214 94643 0 7 0 syz-executor 30582 75115 94643 0 3 0x4000080 fsleep syz-executor 30582 10197 94643 0 3 0x4000000 biowait syz-executor 35980 286674 37998 0 3 0x80 nanoslp syz-executor 35980 119307 37998 0 3 0x4000080 fsleep syz-executor 35980 3160 37998 0 2 0x4000000 syz-executor 35980 133867 37998 0 3 0x4000080 fsleep syz-executor 48136 166012 13040 0 2 0 syz-executor 48136 518987 13040 0 3 0x4000080 fsleep syz-executor 48136 94594 13040 0 3 0x4000080 fsleep syz-executor 43537 113462 26238 0 7 0 syz-executor 43537 82724 26238 0 3 0x4000080 fsleep syz-executor 43537 416355 26238 0 2 0x4000000 syz-executor 64280 463338 1345 0 2 0 syz-executor 64280 499517 1345 0 3 0x4000080 kqsel syz-executor 82415 28176 46587 0 2 0 syz-executor 82415 135350 46587 0 3 0x4000080 ttyin syz-executor 82415 21513 46587 0 3 0x4000080 fsleep syz-executor 74575 373630 63268 0 3 0x80 nanoslp syz-executor 74575 228911 63268 0 3 0x4000080 fsleep syz-executor 74575 319662 63268 0 3 0x4000080 lockf syz-executor 74575 34354 63268 0 3 0x4000080 fsleep syz-executor 75557 32549 0 0 3 0x14200 bored sosplice 30859 18029 0 0 3 0x14200 acct acct 13040 69522 77639 0 3 0x82 nanoslp syz-executor 63268 54836 77639 0 3 0x82 nanoslp syz-executor 26238 195523 77639 0 3 0x82 nanoslp syz-executor 94643 337111 77639 0 3 0x82 nanoslp syz-executor 1345 318231 77639 0 3 0x82 nanoslp syz-executor 37998 9097 77639 0 3 0x82 nanoslp syz-executor 46587 229055 77639 0 3 0x82 nanoslp syz-executor 88273 180965 77639 0 3 0x82 nanoslp syz-executor 77639 352968 90668 0 3 0x82 kqread syz-executor 90668 3177 52824 0 3 0x10008a sigsusp ksh 52824 328620 49829 0 3 0x98 kqread sshd-session 49829 106359 15219 0 3 0x92 kqread sshd-session 76362 238852 1 0 3 0x100083 ttyin getty 15219 188956 1 0 3 0x88 kqread sshd 67008 359516 63533 74 3 0x1100092 bpf pflogd 63533 151671 1 0 3 0x80 sbwait pflogd 60584 371712 89956 73 3 0x1100090 kqread syslogd 89956 169907 1 0 3 0x100082 sbwait syslogd 31198 18445 1 0 3 0x100080 kqread resolvd 44566 270952 28009 77 3 0x100092 kqread dhcpleased 93932 28573 28009 77 3 0x100092 kqread dhcpleased 28009 496064 1 0 3 0x80 kqread dhcpleased 75333 465687 0 0 3 0x14200 bored smr 89163 241759 0 0 2 0x14200 zerothread 72563 255543 0 0 3 0x14200 aiodoned aiodoned 29764 495348 0 0 3 0x14200 syncer update 72995 492791 0 0 3 0x14200 cleaner cleaner 71662 67566 0 0 3 0x14200 reaper reaper 43076 277929 0 0 3 0x14200 pgdaemon pagedaemon 83290 80093 0 0 3 0x14200 bored viomb 98302 184599 0 0 3 0x40014200 acpi0 acpi0 34150 412290 0 0 3 0x40014200 idle1 47390 250039 0 0 3 0x14200 bored softnet3 78755 285796 0 0 3 0x14200 bored softnet2 28138 61745 0 0 3 0x14200 bored softnet1 66342 60535 0 0 3 0x14200 bored softnet0 62875 454341 0 0 3 0x14200 bored systqmp 81940 432578 0 0 3 0x14200 bored systq 4419 121878 0 0 3 0x14200 tmoslp softclockmp 256 202719 0 0 3 0x40014200 tmoslp softclock 48264 255656 0 0 3 0x40014200 idle0 1 121479 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 (0xffffffff8392a1d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 30582 (syz-executor) thread 0xffff8000ffff0cf0 (121214) exclusive rwlock uobjlk r = 0 (0xfffffd805f195ad0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvn_io+0x667 sys/uvm/uvm_vnode.c:1297 #3 uvn_get+0x31d sys/uvm/uvm_vnode.c:1102 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff8392a1d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 #5 uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 #6 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 30582 (syz-executor) thread 0xffff8000ffff0f80 (75115) exclusive rwlock futexpl r = 0 (0xffffffff839085c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 pool_get+0x10b sys/kern/subr_pool.c:583 #3 futex_get+0x309 sys/kern/sys_futex.c:171 #4 futex_wait+0x328 sys/kern/sys_futex.c:-1 #5 sys_futex+0x149 sys/kern/sys_futex.c:101 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive rwlock futex r = 0 (0xffffffff837f1278) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sys_futex+0x69 sys/kern/sys_futex.c:98 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 30582 (syz-executor) thread 0xffff8000ffff07d0 (10197) exclusive rrwlock inode r = 0 (0xfffffd806b92c1c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c4 sys/kern/vfs_syscalls.c:2920 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10201 11093K 11408K 166960K 11789 0 pcb 17 14K 15K 166960K 57 0 rtable 245 7K 8K 166960K 374 0 pf 35 17K 22K 166960K 67 0 ifaddr 44 7K 7K 166960K 55 0 ifgroup 55 2K 2K 166960K 76 0 sysctl 3 1K 1K 166960K 3 0 counters 64 36K 36K 166960K 78 0 ioctlops 0 0K 4K 166960K 1516 0 iov 0 0K 12K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1406 88K 89K 166960K 1674 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 10 0 dirhash 12 2K 3K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 110K 166960K 389 0 sigio 0 0K 0K 166960K 8 0 proc 72 91K 115K 166960K 549 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 40 0 in_multi 99 7K 7K 166960K 113 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 379 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 256 160K 169K 166960K 5140 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 43 86K 102K 166960K 1465 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 12 0K 2K 166960K 34 0 temp 78 8692K 8756K 166960K 11321 0 kqueue 15 24K 28K 166960K 69 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 45 0 42 1 0 1 1 0 8 0 rtentry 176 115 0 2 6 0 6 6 0 8 0 unpcb 144 226 0 209 5 1 4 4 0 8 3 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 808 85 0 80 4 0 4 4 0 8 3 arp 128 19 0 0 1 0 1 1 0 8 0 inpcb 384 313 0 302 9 1 8 8 0 8 6 nd6 144 24 0 0 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 4 0 4 2 1 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pfstscr 40 4 0 4 1 0 1 1 0 8 1 pffrag 232 19 0 17 1 0 1 1 0 482 0 pffrnode 88 19 0 17 1 0 1 1 0 8 0 pffrent 40 36 0 34 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 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 34 0 1 1 0 1 1 0 8 0 pfstkey 128 38 0 5 2 0 2 2 0 8 0 pfstate 384 36 0 3 4 0 4 4 0 8 0 pfrule 1344 24 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 462 0 6 29 0 29 29 0 8 0 art_table 32 463 0 6 4 0 4 4 0 8 0 art_node 16 114 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 7 0 1 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2012 0 502 95 0 95 95 0 8 0 ffsino 288 2012 0 502 109 0 109 109 0 8 0 nchpl 144 2555 0 863 63 0 63 63 0 8 0 uvmvnodes 80 2324 0 0 48 0 48 48 0 8 0 vnodes 216 2324 0 0 130 0 130 130 0 8 0 namei 1024 8294 0 8294 5 3 2 2 0 8 2 percpumem 16 54 0 7 1 0 1 1 0 8 0 kstatmem 264 36 0 12 2 0 2 2 0 8 0 scxspl 216 8562 0 8560 10 9 1 8 1 8 0 plimitpl 152 112 0 94 1 0 1 1 0 8 0 sigapl 424 683 0 631 7 1 6 7 0 8 0 futexpl 64 3905 0 3896 1 0 1 1 0 8 0 knotepl 120 467 0 0 15 0 15 15 0 8 0 kqueuepl 224 97 0 86 2 0 2 2 0 8 1 pipepl 336 193 0 164 3 0 3 3 0 8 0 fdescpl 520 663 0 631 3 0 3 3 0 8 0 filepl 160 3440 0 3209 19 3 16 16 0 8 6 lockfpl 104 209 0 203 2 0 2 2 0 8 1 lockfspl 48 40 0 35 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 38 0 21 1 0 1 1 0 8 0 ucredpl 104 283 0 270 1 0 1 1 0 8 0 zombiepl 144 632 0 631 3 2 1 1 0 8 0 processpl 1192 683 0 631 6 1 5 5 0 8 0 procpl 656 1114 0 1047 6 0 6 6 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 728 589 0 558 12 2 10 10 0 8 6 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 119 0 0 15 0 15 15 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 41 0 0 1 0 1 1 0 8 0 mbufpl 256 290 0 0 18 0 18 18 0 8 0 bufpl 280 3012 0 125 207 0 207 207 0 8 0 anonpl 32 7747 0 0 63 0 63 63 0 246 0 amapchunkpl 152 16048 0 15503 37 9 28 29 0 158 7 amappl16 200 2145 0 2118 17 5 12 15 0 8 8 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 114 0 102 1 0 1 1 0 8 0 amappl13 176 8 0 8 2 2 0 1 0 8 0 amappl12 168 1301 0 1269 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 272 0 272 1 1 0 1 0 8 0 amappl8 136 20 0 17 1 0 1 1 0 8 0 amappl7 128 103 0 90 1 0 1 1 0 8 0 amappl6 120 177 0 173 1 0 1 1 0 8 0 amappl5 112 136 0 126 1 0 1 1 0 8 0 amappl4 104 314 0 295 1 0 1 1 0 8 0 amappl3 96 2919 0 2799 5 1 4 4 0 8 0 amappl2 88 634 0 572 2 0 2 2 0 8 0 amappl1 80 9346 0 8738 15 0 15 15 0 8 0 amappl 88 4405 0 4223 6 1 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 663 0 631 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 663 0 631 1 0 1 1 0 8 0 vmmpekpl 168 7236 0 7196 3 0 3 3 0 8 0 vmmpepl 168 47558 0 45537 101 2 99 99 0 357 10 vmsppl 480 662 0 631 5 1 4 5 0 8 0 rwobjpl 72 17610 0 14328 64 0 64 64 0 8 3 pdppl 4096 1334 0 1262 102 30 72 84 0 8 0 pvpl 32 13881 0 0 113 1 112 113 0 265 0 pmappl 256 662 0 631 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 396 0 36 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8388bff0) 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+0x4f sys/dev/kcov.c:159 intr_handler(ffff80003440a040,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7bde31009300, count: 9 ddb{0}> trace x86_ipi_db(ffffffff8388bff0) 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+0x4f sys/dev/kcov.c:159 intr_handler(ffff80003440a040,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7bde31009300, 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(ffffffff833e52da) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8392a1c8) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8392a1c8) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008751230) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805ea651f0,0,ffff80003c428508,ffff80003c4284e4,0,2,f3de73d8a8d079c6,ffff80003c428760) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c428728,ffff80003c428760,ffff80003c428590,ffff80003c428598) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c428728,ffff80003c428760,ffff80003c4286a0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806b8b8d40,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4288b0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c4288b0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7559349bca80, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e52da) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8392a1c8) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8392a1c8) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8008751230) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8008751230) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805ea651f0,0,ffff80003c428508,ffff80003c4284e4,0,2,f3de73d8a8d079c6,ffff80003c428760) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c428728,ffff80003c428760,ffff80003c428590,ffff80003c428598) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c428728,ffff80003c428760,ffff80003c4286a0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806b8b8d40,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4288b0,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c4288b0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7559349bca80, count: -13