login: panic: mtx 0xffffffff839e4790: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 203456 46685 32767 0x10 0x4000000 1 syz-executor *151859 22845 32767 0x10 0 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833c8cb3) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839e4790) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff839e4790) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8007c6a940) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007c6a940) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065984ab0,0,ffff80003c514a48,ffff80003c514a24,0,2,faa254ffdcd83359,ffff80003c514ca0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c514c68,ffff80003c514ca0,ffff80003c514ad0,ffff80003c514ad8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c514c68,ffff80003c514ca0,ffff80003c514be0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806842d910,400000000000,0,2) at uvm_fault+0x272 upageflttrap(ffff80003c514df0,400000000280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c514df0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x757d1ab9ef70, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: mtx 0xffffffff839e4790: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833c8cb3) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839e4790) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff839e4790) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8007c6a940) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007c6a940) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065984ab0,0,ffff80003c514a48,ffff80003c514a24,0,2,faa254ffdcd83359,ffff80003c514ca0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c514c68,ffff80003c514ca0,ffff80003c514ad0,ffff80003c514ad8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c514c68,ffff80003c514ca0,ffff80003c514be0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806842d910,400000000000,0,2) at uvm_fault+0x272 upageflttrap(ffff80003c514df0,400000000280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c514df0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x757d1ab9ef70, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c514790 rbx 0xffffffff83829dc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff8000fffee028 rax 0xffffffff83828ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x10cb597c1469d6e2 r11 0xd6ec58a5eb427ba4 r12 0xffffffff83829bc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff8191de05 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c514780 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=151859 pid=22845 tcnt=4 stat=onproc flags process=10 proc=0 runpri=50, usrpri=50, slppri=16, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeecf8,0xffff8000fffee558 process=0xffff8000ffff1bb0 user=0xffff80003c50f000, vmspace=0xfffffd806842d910 estcpu=36, cpticks=2, pctcpu=0.0, user=1, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 86000 571 71153 32767 2 0x10 syz-executor 46685 194481 92283 32767 2 0x10 syz-executor 46685 203456 92283 32767 7 0x4000010 syz-executor 71392 295855 12643 32767 2 0x10 syz-executor 71392 244397 12643 32767 3 0x4000090 fsleep syz-executor *22845 151859 45703 32767 7 0x10 syz-executor 22845 57073 45703 32767 3 0x4000010 uobjlk syz-executor 22845 75806 45703 32767 3 0x4000010 biowait syz-executor 22845 152646 45703 32767 3 0x4000090 fsleep syz-executor 42696 20854 97998 0 2 0x2 syz-executor 20486 462669 90737 32767 3 0x90 nanoslp syz-executor 20486 313155 90737 32767 3 0x4000090 sbwait syz-executor 20486 99888 90737 32767 3 0x4000090 fsleep syz-executor 20486 3360 90737 32767 3 0x4000090 fsleep syz-executor 18343 368504 49962 0 3 0x82 sbwait sshd-session 86427 405532 0 0 3 0x14200 bored sosplice 92283 122110 47352 32767 3 0x90 nanoslp syz-executor 71153 1838 45727 32767 3 0x90 nanoslp syz-executor 62509 188783 48923 32767 3 0x90 wait syz-executor 90737 128578 83862 32767 3 0x90 nanoslp syz-executor 90809 229270 12720 32767 3 0x10 biowait syz-executor 12643 221383 70251 32767 3 0x90 nanoslp syz-executor 45703 91312 89942 32767 3 0x90 nanoslp syz-executor 45727 152072 97998 0 3 0x82 wait syz-executor 48923 168370 97998 0 3 0x82 wait syz-executor 47352 233326 97998 0 3 0x82 wait syz-executor 83862 236575 97998 0 3 0x82 wait syz-executor 12720 489542 97998 0 3 0x82 wait syz-executor 70251 281293 97998 0 3 0x82 wait syz-executor 89942 348848 97998 0 3 0x82 wait syz-executor 97998 83423 18158 0 3 0x82 kqread syz-executor 18158 63394 24238 0 3 0x10008a sigsusp ksh 24238 42860 64874 0 3 0x98 kqread sshd-session 64874 419340 49962 0 3 0x92 kqread sshd-session 75722 53042 1 0 3 0x100083 ttyin getty 49962 191940 1 0 3 0x88 kqread sshd 24135 54462 16060 73 3 0x1100090 kqread syslogd 16060 69511 1 0 3 0x100082 sbwait syslogd 35763 241859 1 0 3 0x100080 kqread resolvd 73026 151695 50981 77 3 0x100092 kqread dhcpleased 94570 291784 50981 77 3 0x100092 kqread dhcpleased 50981 514673 1 0 3 0x80 kqread dhcpleased 63738 481369 0 0 3 0x14200 bored smr 61744 329051 0 0 2 0x14200 zerothread 79066 487213 0 0 3 0x14200 aiodoned aiodoned 57411 107601 0 0 3 0x14200 syncer update 75515 385676 0 0 3 0x14200 cleaner cleaner 46545 182585 0 0 3 0x14200 reaper reaper 75105 127969 0 0 3 0x14200 pgdaemon pagedaemon 78633 389725 0 0 3 0x14200 bored viomb 11560 303360 0 0 3 0x40014200 acpi0 acpi0 49733 332281 0 0 3 0x40014200 idle1 97253 469538 0 0 3 0x14200 bored softnet3 3041 281414 0 0 3 0x14200 bored softnet2 79801 229377 0 0 3 0x14200 bored softnet1 82350 346949 0 0 3 0x14200 bored softnet0 45653 257764 0 0 3 0x14200 bored systqmp 29192 123646 0 0 3 0x14200 bored systq 31309 487803 0 0 3 0x14200 tmoslp softclockmp 92530 399232 0 0 3 0x40014200 tmoslp softclock 68744 116969 0 0 3 0x40014200 idle0 1 511147 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839e47a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #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 #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 22845 (syz-executor) thread 0xffff8000fffee028 (151859) exclusive rwlock uobjlk r = 0 (0xfffffd80614703e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 #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 (0xffffffff839e47a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 mtx_enter_try+0x178 #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 #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 22845 (syz-executor) thread 0xffff8000fffef9c8 (57073) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839782f8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #1 syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 Process 22845 (syz-executor) thread 0xffff8000fffeea68 (75806) exclusive rrwlock inode r = 0 (0xfffffd8067602730) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 Process 90809 (syz-executor) thread 0xffff8000ffffaa58 (229270) exclusive rrwlock inode r = 0 (0xfffffd8067602b90) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cf77bc0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10206 10955K 10965K 166960K 11289 0 pcb 17 12K 12K 166960K 17 0 rtable 212 6K 6K 166960K 390 0 pf 29 16K 16K 166960K 31 0 ifaddr 38 6K 7K 166960K 44 0 ifgroup 46 2K 2K 166960K 50 0 sysctl 2 1K 1K 166960K 2 0 counters 62 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 8K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1332 84K 84K 166960K 1395 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 12 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 23 82K 121K 166960K 276 0 sigio 0 0K 0K 166960K 3 0 proc 58 79K 115K 166960K 495 0 subproc 63 3K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 29 0 in_multi 88 6K 7K 166960K 108 0 ether_multi 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 205 917K 917K 166960K 205 0 exec 0 0K 1K 166960K 366 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 236 66K 79K 166960K 3696 0 UVM aobj 10 3K 3K 166960K 10 0 pinsyscall 46 92K 112K 166960K 1310 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 7 0 NDP 10 0K 2K 166960K 27 0 temp 35 8679K 8743K 166960K 4530 0 kqueue 13 20K 24K 166960K 40 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 52 0 47 1 0 1 1 0 8 0 rtentry 160 111 0 12 5 0 5 5 0 8 0 unpcb 144 121 0 103 1 0 1 1 0 8 0 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 3 0 3 1 0 1 1 0 8 1 tcpcb 808 72 0 62 2 0 2 2 0 8 0 arp 120 18 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 376 202 0 187 3 0 3 3 0 8 1 nd6 136 24 0 3 1 0 1 1 0 8 0 kcovpl 48 12 0 5 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 451 0 44 29 0 29 29 0 8 3 art_table 32 452 0 44 4 0 4 4 0 8 0 art_node 16 110 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 10 0 4 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 1756 0 240 95 0 95 95 0 8 0 ffsino 280 1756 0 240 109 0 109 109 0 8 0 nchpl 144 2105 0 421 63 0 63 63 0 8 0 uvmvnodes 80 1873 0 0 39 0 39 39 0 8 0 vnodes 216 1873 0 0 105 0 105 105 0 8 0 namei 1024 6574 0 6574 2 0 2 2 0 8 2 percpumem 16 46 0 1 1 0 1 1 0 8 0 kstatmem 264 22 0 2 2 0 2 2 0 8 0 scxspl 216 6744 0 6742 6 2 4 4 1 8 3 plimitpl 152 59 0 37 2 0 2 2 0 8 1 sigapl 424 550 0 495 7 0 7 7 0 8 0 futexpl 64 1839 0 1835 1 0 1 1 0 8 0 knotepl 120 86 0 0 3 0 3 3 0 8 0 kqueuepl 216 146 0 104 5 0 5 5 0 8 2 pipepl 328 131 0 102 3 0 3 3 0 8 0 fdescpl 504 531 0 495 7 1 6 6 0 8 0 filepl 152 2374 0 2125 11 0 11 11 0 8 1 lockfpl 104 40 0 36 1 0 1 1 0 8 0 lockfspl 48 19 0 15 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 42 0 18 1 0 1 1 0 8 0 ucredpl 104 291 0 273 1 0 1 1 0 8 0 zombiepl 144 496 0 495 1 0 1 1 0 8 0 processpl 1176 550 0 495 5 0 5 5 0 8 0 procpl 656 743 0 680 6 0 6 6 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 688 376 0 338 5 0 5 5 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 123 0 0 16 0 16 16 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 362 0 0 23 0 23 23 0 8 0 bufpl 280 2465 0 124 168 0 168 168 0 8 0 anonpl 24 87534 0 84260 46 1 45 45 0 184 11 amapchunkpl 152 11450 0 10928 32 0 32 32 0 158 8 amappl16 200 1028 0 1007 14 1 13 14 0 8 10 amappl15 192 2 0 2 1 1 0 1 0 8 0 amappl14 184 104 0 93 1 0 1 1 0 8 0 amappl13 176 4 0 3 1 0 1 1 0 8 0 amappl12 168 1138 0 1104 2 0 2 2 0 8 0 amappl11 160 41 0 31 1 0 1 1 0 8 0 amappl10 152 2 0 2 1 1 0 1 0 8 0 amappl9 144 253 0 253 1 1 0 1 0 8 0 amappl8 136 17 0 16 1 0 1 1 0 8 0 amappl7 128 100 0 89 1 0 1 1 0 8 0 amappl6 120 166 0 162 1 0 1 1 0 8 0 amappl5 112 108 0 102 1 0 1 1 0 8 0 amappl4 104 282 0 267 1 0 1 1 0 8 0 amappl3 96 1972 0 1850 4 0 4 4 0 8 0 amappl2 88 625 0 565 2 0 2 2 0 8 0 amappl1 80 8382 0 7757 13 0 13 13 0 8 0 amappl 88 3334 0 3152 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 531 0 495 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 531 0 495 1 0 1 1 0 8 0 vmmpekpl 168 6058 0 6014 3 0 3 3 0 8 0 vmmpepl 168 37638 0 35615 99 0 99 99 0 357 8 vmsppl 456 530 0 495 7 1 6 6 0 8 0 rwobjpl 64 14642 0 11833 47 0 47 47 0 8 0 pdppl 4096 1069 0 990 111 28 83 95 0 8 4 pvpl 32 14394 0 0 118 1 117 117 0 265 0 pmappl 248 530 0 495 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 298 0 31 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833c8cb3) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839e4790) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff839e4790) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8007c6a940) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007c6a940) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd8065984ab0,0,ffff80003c514a48,ffff80003c514a24,0,2,faa254ffdcd83359,ffff80003c514ca0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c514c68,ffff80003c514ca0,ffff80003c514ad0,ffff80003c514ad8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff80003c514c68,ffff80003c514ca0,ffff80003c514be0) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806842d910,400000000000,0,2) at uvm_fault+0x272 upageflttrap(ffff80003c514df0,400000000280) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c514df0) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x757d1ab9ef70, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) 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(ffffffff839780f0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839780f0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a476d30) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a476d30) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd3a1d83a40, count: 9 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) 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(ffffffff839780f0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839780f0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a476d30) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a476d30) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd3a1d83a40, count: -6