panic: mtx 0xffffffff83956230: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *162216 32214 0 0 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e8995) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83956230) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83956230) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80081e1790) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806c189d88,1000,ffff800035bfdca8,ffff800035bfdc8c,0,2,52e40e9e79301c21,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfdd40,ffff800035bfdd28) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfde40) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd80672645c0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff800035bfe050,200000001280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800035bfe050) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a13480b2da0, 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 0xffffffff83956230: locking against myself ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e8995) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83956230) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83956230) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80081e1790) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806c189d88,1000,ffff800035bfdca8,ffff800035bfdc8c,0,2,52e40e9e79301c21,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfdd40,ffff800035bfdd28) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfde40) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd80672645c0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff800035bfe050,200000001280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800035bfe050) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a13480b2da0, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800035bfd9f0 rbx 0xffff8000299dedcf rdx 0 rcx 0xffff80002a2baab0 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf17c05a8e67f667a r11 0xe5f107fedcbbcae3 r12 0xffff8000299debd0 r13 0 r14 0 r15 0x1 rip 0xffffffff82abaff5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800035bfd9e0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=162216 pid=32214 tcnt=4 stat=onproc flags process=0 proc=0 runpri=86, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2b9020,0xffff80002a2b92d8 process=0xffff8000fffeb460 user=0xffff800035bf9000, vmspace=0xfffffd80672645c0 estcpu=36, cpticks=6, pctcpu=0.0, user=5, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *32214 162216 9009 0 7 0 syz-executor 32214 393106 9009 0 3 0x4000080 fsleep syz-executor 32214 163685 9009 0 3 0x4000000 biowait syz-executor 32214 274368 9009 0 3 0x4000080 fsleep syz-executor 46890 405030 77468 0 3 0x80 nanoslp syz-executor 46890 237777 77468 0 3 0x4000080 ttyin syz-executor 46890 316888 77468 0 3 0x4000080 fsleep syz-executor 98290 471329 25576 0 3 0x80 nanoslp syz-executor 98290 176476 25576 0 3 0x4000080 fsleep syz-executor 98290 343713 25576 0 3 0x4000080 fsleep syz-executor 98290 38994 25576 0 3 0x4000080 fsleep syz-executor 96181 52511 97784 0 3 0x80 nanoslp syz-executor 96181 445064 97784 0 3 0x4000080 sbwait syz-executor 96181 210410 97784 0 3 0x4000080 fsleep syz-executor 45302 260350 73421 0 3 0x80 nanoslp syz-executor 45302 1782 73421 0 3 0x4000080 pipewr syz-executor 45302 457702 73421 0 3 0x4000080 fsleep syz-executor 45302 411625 73421 0 3 0x4000080 fsleep syz-executor 25576 98310 1402 0 3 0x82 nanoslp syz-executor 94783 266432 1402 0 3 0x82 nanoslp syz-executor 11592 521646 0 0 3 0x14200 acct acct 33890 345844 0 0 3 0x14200 bored sosplice 97784 487779 1402 0 3 0x82 nanoslp syz-executor 3024 122426 1402 0 3 0x82 nanoslp syz-executor 73421 137687 1402 0 3 0x82 nanoslp syz-executor 77468 376225 1402 0 3 0x82 nanoslp syz-executor 9009 195862 1402 0 3 0x82 nanoslp syz-executor 16137 123604 1402 0 3 0x82 wait syz-executor 1402 511280 35285 0 3 0x82 kqread syz-executor 35285 247199 55050 0 3 0x10008a sigsusp ksh 55050 470053 23952 0 3 0x98 kqread sshd-session 23952 182266 81246 0 3 0x92 kqread sshd-session 95754 176483 1 0 3 0x100083 ttyin getty 81246 335050 1 0 3 0x88 kqread sshd 16948 346994 433 74 3 0x1100092 bpf pflogd 433 194040 1 0 3 0x80 sbwait pflogd 55009 133040 357 73 3 0x1100090 kqread syslogd 357 176440 1 0 3 0x100082 sbwait syslogd 51006 308410 1 0 3 0x100080 kqread resolvd 64492 110813 33777 77 3 0x100092 kqread dhcpleased 32220 19785 33777 77 3 0x100092 kqread dhcpleased 33777 453269 1 0 3 0x80 kqread dhcpleased 27984 145913 0 0 3 0x14200 bored smr 79316 183343 0 0 3 0x14200 pgzero zerothread 66179 311222 0 0 3 0x14200 aiodoned aiodoned 5883 267032 0 0 3 0x14200 syncer update 91012 223365 0 0 3 0x14200 cleaner cleaner 2272 405213 0 0 3 0x14200 reaper reaper 27191 186471 0 0 3 0x14200 pgdaemon pagedaemon 36876 353716 0 0 3 0x14200 bored viomb 98966 326487 0 0 3 0x40014200 acpi0 acpi0 295 300156 0 0 3 0x40014200 idle1 42584 163257 0 0 3 0x14200 bored softnet3 92766 423748 0 0 3 0x14200 bored softnet2 43786 55767 0 0 3 0x14200 bored softnet1 6069 171255 0 0 3 0x14200 bored softnet0 51085 420950 0 0 3 0x14200 bored systqmp 61312 97618 0 0 3 0x14200 bored systq 65665 5891 0 0 3 0x14200 tmoslp softclockmp 49142 203269 0 0 3 0x40014200 tmoslp softclock 73514 25303 0 0 7 0x40014200 idle0 1 273395 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 (0xffffffff83956240) #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+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 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 32214 (syz-executor) thread 0xffff80002a2baab0 (162216) exclusive rwlock uobjlk r = 0 (0xfffffd806808d928) #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+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 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 (0xffffffff83956240) #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+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 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 32214 (syz-executor) thread 0xffff8000357f77f8 (163685) exclusive rrwlock inode r = 0 (0xfffffd806bd02760) #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:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c4 sys/kern/vfs_syscalls.c:2912 #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 Process 32214 (syz-executor) thread 0xffff8000357f7ff0 (274368) exclusive rwlock amaplk r = 0 (0xfffffd806808d6e8) #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 uvm_fault_check+0x5a9 sys/uvm/uvm_fault.c:862 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd80672646c0) #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_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10203 11091K 11293K 166960K 11839 0 pcb 17 12K 12K 166960K 75 0 rtable 139 5K 6K 166960K 440 0 pf 36 17K 81K 166960K 78 0 ifaddr 31 4K 7K 166960K 70 0 ifgroup 59 2K 2K 166960K 102 0 sysctl 3 1K 1K 166960K 5 0 counters 66 36K 37K 166960K 104 0 ioctlops 0 0K 4K 166960K 1525 0 iov 0 0K 12K 166960K 16 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1404 88K 89K 166960K 1668 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 78 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 449 0 sigio 0 0K 0K 166960K 6 0 proc 72 91K 128K 166960K 604 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 44 0 in_multi 50 3K 6K 166960K 139 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 431 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 264 176K 186K 166960K 5709 0 UVM aobj 74 3K 3K 166960K 75 0 pinsyscall 43 86K 104K 166960K 1589 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 19 0 NDP 13 0K 1K 166960K 45 0 temp 43 8683K 8806K 166960K 11089 0 kqueue 15 24K 28K 166960K 81 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 55 0 52 1 0 1 1 0 8 0 rtentry 176 137 0 78 5 0 5 5 0 8 1 unpcb 144 189 0 168 2 0 2 2 0 8 1 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 75 0 70 1 0 1 1 0 8 0 arp 128 22 0 12 1 0 1 1 0 8 0 inpcb 384 442 0 430 8 0 8 8 0 8 6 nd6 144 30 0 20 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 0 1 1 0 8 1 ppxss 1192 12 0 12 1 0 1 1 0 8 1 pppxif 1504 4 0 4 1 0 1 1 0 8 1 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 1 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 pfstitem 24 34 0 0 1 0 1 1 0 8 0 pfstkey 128 34 0 0 2 0 2 2 0 8 0 pfstate 384 34 0 0 4 0 4 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 567 0 310 26 1 25 26 0 8 6 art_table 32 568 0 310 4 0 4 4 0 8 1 art_node 16 136 0 83 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 6 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 75 0 65 1 0 1 1 0 8 0 shmpl 112 72 0 1 3 0 3 3 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2113 0 598 96 0 96 96 0 8 0 ffsino 288 2113 0 598 109 0 109 109 0 8 0 nchpl 144 2691 0 2178 63 0 63 63 0 8 39 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 2398 0 0 49 0 49 49 0 8 0 vnodes 216 2398 0 0 134 0 134 134 0 8 0 namei 1024 8810 0 8810 2 1 1 2 0 8 1 percpumem 16 67 0 19 1 0 1 1 0 8 0 kstatmem 264 50 0 24 3 0 3 3 0 8 1 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 8793 0 8791 10 3 7 8 1 8 6 plimitpl 152 68 0 50 1 0 1 1 0 8 0 sigapl 424 748 0 696 8 2 6 7 0 8 0 futexpl 64 4415 0 4406 1 0 1 1 0 8 0 knotepl 120 331 0 0 10 0 10 10 0 8 0 kqueuepl 224 105 0 94 1 0 1 1 0 8 0 pipepl 336 130 0 100 3 0 3 3 0 8 0 fdescpl 520 728 0 696 3 0 3 3 0 8 0 filepl 160 3422 0 3184 13 0 13 13 0 8 2 lockfpl 104 102 0 97 1 0 1 1 0 8 0 lockfspl 48 44 0 39 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 36 0 19 1 0 1 1 0 8 0 ucredpl 104 395 0 381 1 0 1 1 0 8 0 zombiepl 144 699 0 696 1 0 1 1 0 8 0 processpl 1216 748 0 696 5 0 5 5 0 8 0 procpl 680 1205 0 1140 7 1 6 6 0 8 0 srpgc 96 12 0 12 1 0 1 1 0 8 1 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 728 695 0 659 10 0 10 10 0 8 6 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 129 0 0 17 0 17 17 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 10 0 0 1 0 1 1 0 8 0 mbufpl 256 1131 0 0 71 0 71 71 0 8 0 bufpl 280 2922 0 123 200 0 200 200 0 8 0 anonpl 32 5509 0 0 45 0 45 45 0 246 0 amapchunkpl 152 17413 0 16850 26 0 26 26 0 158 4 amappl16 200 2276 0 2244 6 3 3 5 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 115 0 103 1 0 1 1 0 8 0 amappl13 176 29 0 29 1 1 0 1 0 8 0 amappl12 168 1409 0 1377 4 2 2 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 84 0 81 1 0 1 1 0 8 0 amappl7 128 113 0 100 1 0 1 1 0 8 0 amappl6 120 191 0 188 1 0 1 1 0 8 0 amappl5 112 150 0 141 1 0 1 1 0 8 0 amappl4 104 336 0 317 1 0 1 1 0 8 0 amappl3 96 3212 0 3084 5 1 4 4 0 8 0 amappl2 88 669 0 605 2 0 2 2 0 8 0 amappl1 80 9465 0 8863 14 1 13 14 0 8 0 amappl 88 4943 0 4755 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 128 254 0 254 2 1 1 1 0 8 1 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 74 0 1 2 0 2 2 0 8 0 uaddrrnd 24 728 0 696 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 728 0 696 1 0 1 1 0 8 0 vmmpekpl 168 7255 0 7203 3 0 3 3 0 8 0 vmmpepl 168 51314 0 49265 90 0 90 90 0 357 0 vmsppl 480 727 0 696 5 0 5 5 0 8 0 rwobjpl 72 18423 0 14993 63 0 63 63 0 8 0 pdppl 4096 1464 0 1392 104 30 74 88 0 8 2 pvpl 32 12816 0 0 104 0 104 104 0 265 0 pmappl 256 727 0 696 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 454 0 36 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837c1ff0) 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(ffffffff83963e28) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83963e28) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a1f4a90,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffffffff837c1ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff837c1ff0) 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(ffffffff83963e28) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83963e28) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a1f4a90,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffffffff837c1ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -8 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(ffffffff833e8995) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83956230) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83956230) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80081e1790) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806c189d88,1000,ffff800035bfdca8,ffff800035bfdc8c,0,2,52e40e9e79301c21,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfdd40,ffff800035bfdd28) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfde40) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd80672645c0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff800035bfe050,200000001280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800035bfe050) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a13480b2da0, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e8995) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83956230) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83956230) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80081e1790) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80081e1790) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806c189d88,1000,ffff800035bfdca8,ffff800035bfdc8c,0,2,52e40e9e79301c21,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfdd40,ffff800035bfdd28) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff800035bfdec0,ffff800035bfdef8,ffff800035bfde40) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd80672645c0,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff800035bfe050,200000001280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff800035bfe050) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7a13480b2da0, count: -13