panic: mtx 0xffffffff8396db70: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 76215 57737 0 0 0 0 syz-executor 420080 57737 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e6b41) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8396db70) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8396db70) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd800882ea28) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800882ea28) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800882ea28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806a2772c0,0,ffff8000377f8768,ffff8000377f8744,0,2,e73d596ef6776ded,ffff8000377f89c0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff8000377f8988,ffff8000377f89c0,ffff8000377f87f0,ffff8000377f87f8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff8000377f8988,ffff8000377f89c0,ffff8000377f8900) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806bd04980,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff8000377f8b10,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff8000377f8b10) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77ff37d9a4e0, 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 0xffffffff8396db70: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e6b41) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8396db70) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8396db70) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd800882ea28) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800882ea28) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800882ea28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806a2772c0,0,ffff8000377f8768,ffff8000377f8744,0,2,e73d596ef6776ded,ffff8000377f89c0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff8000377f8988,ffff8000377f89c0,ffff8000377f87f0,ffff8000377f87f8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff8000377f8988,ffff8000377f89c0,ffff8000377f8900) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806bd04980,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff8000377f8b10,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff8000377f8b10) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77ff37d9a4e0, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000377f84b0 rbx 0xffffffff83837dcf cpu_info_full_primary+0x2dcf rdx 0 rcx 0xffff80003c458cf8 rax 0xffffffff83836ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf56e143be9a34a6c r11 0xa71ab139fb670931 r12 0xffffffff83837bd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff8173bc75 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000377f84a0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=76215 pid=57737 tcnt=4 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c459218,0xffff80003c4587e8 process=0xffff8000fffec968 user=0xffff8000377f3000, vmspace=0xfffffd806bd04980 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *57737 76215 98165 0 7 0 syz-executor 57737 515387 98165 0 2 0x4000000 syz-executor 57737 242499 98165 0 3 0x4000000 biowait syz-executor 57737 420080 98165 0 7 0x4000000 syz-executor 71505 7280 963 0 2 0 syz-executor 71505 494431 963 0 3 0x4000080 ttyretype syz-executor 72497 38407 68519 0 2 0 syz-executor 72497 156722 68519 0 3 0x4000080 ttyin syz-executor 41250 193272 61554 0 2 0 syz-executor 41250 103396 61554 0 3 0x4000080 fsleep syz-executor 35663 505452 23889 0 3 0x80 nanoslp syz-executor 35663 101773 23889 0 3 0x4000080 kqread syz-executor 35663 395120 23889 0 3 0x4000080 fsleep syz-executor 35663 186569 23889 0 3 0x4000080 fsleep syz-executor 66139 150228 99766 0 2 0 syz-executor 66139 401010 99766 0 3 0x4000080 fsleep syz-executor 66139 325874 99766 0 3 0x4000080 fsleep syz-executor 47273 300948 0 0 3 0x14200 bored sosplice 52094 476034 0 0 3 0x14280 nfsidl nfsio 53163 350721 0 0 3 0x14280 nfsidl nfsio 91772 482697 0 0 3 0x14280 nfsidl nfsio 51504 335025 0 0 3 0x14280 nfsidl nfsio 74761 402725 0 0 3 0x14280 nfsidl nfsio 8601 49318 0 0 3 0x14280 nfsidl nfsio 6323 292047 0 0 3 0x14280 nfsidl nfsio 28501 344881 0 0 3 0x14280 nfsidl nfsio 70564 304237 0 0 3 0x14280 nfsidl nfsio 87023 150061 0 0 3 0x14280 nfsidl nfsio 79536 238240 0 0 3 0x14280 nfsidl nfsio 35303 133499 0 0 3 0x14280 nfsidl nfsio 59136 339225 0 0 3 0x14280 nfsidl nfsio 38145 1136 0 0 3 0x14280 nfsidl nfsio 86786 46149 0 0 3 0x14280 nfsidl nfsio 39132 229130 0 0 3 0x14280 nfsidl nfsio 72679 462787 0 0 3 0x14280 nfsidl nfsio 75645 439621 0 0 3 0x14280 nfsidl nfsio 77179 299357 0 0 3 0x14280 nfsidl nfsio 21943 157197 0 0 3 0x14280 nfsidl nfsio 99766 329946 21829 0 3 0x82 nanoslp syz-executor 68519 45118 21829 0 3 0x82 nanoslp syz-executor 40867 141749 21829 0 3 0x82 nanoslp syz-executor 61554 384128 21829 0 3 0x82 nanoslp syz-executor 81407 356690 21829 0 3 0x2 biowait syz-executor 98165 11748 21829 0 3 0x82 nanoslp syz-executor 963 382800 21829 0 3 0x82 nanoslp syz-executor 23889 2626 21829 0 3 0x82 nanoslp syz-executor 21829 53308 15184 0 3 0x82 kqread syz-executor 15184 415076 50221 0 3 0x10008a sigsusp ksh 50221 504431 5412 0 3 0x98 kqread sshd-session 5412 434874 35622 0 3 0x92 kqread sshd-session 74318 328823 1 0 3 0x100083 ttyin getty 35622 254076 1 0 3 0x88 kqread sshd 79081 3464 60841 74 3 0x1100092 bpf pflogd 60841 377123 1 0 3 0x80 sbwait pflogd 19920 480608 61411 73 3 0x1100090 kqread syslogd 61411 134776 1 0 3 0x100082 sbwait syslogd 96859 184294 1 0 3 0x100080 kqread resolvd 51135 481137 6693 77 3 0x100092 kqread dhcpleased 97606 30122 6693 77 3 0x100092 kqread dhcpleased 6693 459775 1 0 3 0x80 kqread dhcpleased 14813 375822 0 0 3 0x14200 bored smr 42639 468102 0 0 2 0x14200 zerothread 41967 98421 0 0 3 0x14200 aiodoned aiodoned 21963 99638 0 0 3 0x14200 syncer update 95949 320533 0 0 3 0x14200 cleaner cleaner 14570 488699 0 0 3 0x14200 reaper reaper 76937 472434 0 0 3 0x14200 pgdaemon pagedaemon 68673 124356 0 0 3 0x14200 bored viomb 86447 261201 0 0 3 0x40014200 acpi0 acpi0 33973 209879 0 0 3 0x40014200 idle1 62894 94075 0 0 3 0x14200 bored softnet3 95921 34581 0 0 3 0x14200 bored softnet2 12412 149718 0 0 3 0x14200 bored softnet1 24763 468616 0 0 3 0x14200 bored softnet0 62444 280321 0 0 3 0x14200 bored systqmp 16546 36666 0 0 3 0x14200 bored systq 91690 520218 0 0 3 0x14200 tmoslp softclockmp 19028 127169 0 0 3 0x40014200 tmoslp softclock 38849 127244 0 0 3 0x40014200 idle0 1 88673 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 (0xffffffff8396db80) #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 57737 (syz-executor) thread 0xffff80003c458cf8 (76215) exclusive rwlock uobjlk r = 0 (0xfffffd806bdae6e0) #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 (0xffffffff8396db80) #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 57737 (syz-executor) thread 0xffff80003c4582b8 (242499) exclusive rrwlock inode r = 0 (0xfffffd806bc44640) #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 Process 57737 (syz-executor) thread 0xffff80003c4594a8 (420080) exclusive rwlock amaplk r = 0 (0xfffffd806bcbd148) #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_map_clean+0x416 sys/uvm/uvm_map.c:4496 #3 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839fcdb8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #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 81407 (syz-executor) thread 0xffff80002a2b59b8 (356690) exclusive rrwlock inode r = 0 (0xfffffd806bc44ac0) #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 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 (0xfffffd806bc44880) #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 vget+0x2bd sys/kern/vfs_subr.c:694 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10195 11086K 11280K 166960K 11324 0 pcb 17 12K 12K 166960K 32 0 rtable 234 6K 6K 166960K 354 0 pf 34 17K 18K 166960K 45 0 ifaddr 43 7K 7K 166960K 45 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 1K 1K 166960K 1 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 4K 166960K 1488 0 iov 0 0K 12K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1341 84K 85K 166960K 1386 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 188 0 sigio 0 0K 0K 166960K 2 0 proc 72 91K 127K 166960K 546 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 9 0 in_multi 99 7K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 371 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 241 159K 169K 166960K 3448 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 42 84K 104K 166960K 1271 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 12 0K 2K 166960K 28 0 temp 38 8678K 8754K 166960K 8487 0 kqueue 13 20K 22K 166960K 29 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 102 0 99 3 0 3 3 0 8 2 rtentry 176 111 0 1 5 0 5 5 0 8 0 unpcb 144 57 0 39 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 808 18 0 14 1 0 1 1 0 8 0 arp 128 18 0 0 1 0 1 1 0 8 0 inpcb 384 101 0 94 2 0 2 2 0 8 1 nd6 144 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 0 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 18 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 0 1 0 1 1 0 8 0 pfstate 384 18 0 0 2 0 2 2 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 256 451 0 0 29 0 29 29 0 8 0 art_table 32 452 0 0 4 0 4 4 0 8 0 art_node 16 110 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 6 0 2 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1637 0 125 95 0 95 95 0 8 0 ffsino 288 1637 0 125 109 0 109 109 0 8 0 nchpl 144 1891 0 202 63 0 63 63 0 8 0 uvmvnodes 80 1743 0 0 36 0 36 36 0 8 0 vnodes 216 1743 0 0 97 0 97 97 0 8 0 namei 1024 5864 0 5864 2 0 2 2 0 8 2 percpumem 16 47 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 6156 0 6153 3 1 2 2 1 8 1 plimitpl 152 65 0 46 1 0 1 1 0 8 0 sigapl 424 508 0 438 8 0 8 8 0 8 0 futexpl 64 834 0 829 1 0 1 1 0 8 0 knotepl 120 57 0 0 2 0 2 2 0 8 0 kqueuepl 224 32 0 22 1 0 1 1 0 8 0 pipepl 336 111 0 83 3 0 3 3 0 8 0 fdescpl 520 469 0 438 3 0 3 3 0 8 0 filepl 160 1758 0 1532 13 0 13 13 0 8 3 lockfpl 104 12 0 8 1 0 1 1 0 8 0 lockfspl 48 8 0 4 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 37 0 20 1 0 1 1 0 8 0 ucredpl 104 126 0 113 1 0 1 1 0 8 0 zombiepl 144 439 0 438 1 0 1 1 0 8 0 processpl 1192 508 0 438 6 0 6 6 0 8 0 procpl 656 620 0 539 8 0 8 8 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 728 260 0 232 10 0 10 10 0 8 6 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 68 0 0 2 0 2 2 0 8 0 mbufpl 256 235 0 0 15 0 15 15 0 8 0 bufpl 280 2416 0 122 164 0 164 164 0 8 0 anonpl 32 3990 0 0 33 0 33 33 0 246 0 amapchunkpl 152 10013 0 9512 23 0 23 23 0 158 2 amappl16 200 2075 0 2049 5 0 5 5 0 8 3 amappl15 192 5 0 4 1 0 1 1 0 8 0 amappl14 184 111 0 99 1 0 1 1 0 8 0 amappl13 176 5 0 5 2 2 0 1 0 8 0 amappl12 168 1111 0 1080 3 1 2 2 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 248 0 247 1 0 1 1 0 8 0 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 113 0 100 1 0 1 1 0 8 0 amappl6 120 181 0 178 1 0 1 1 0 8 0 amappl5 112 133 0 124 1 0 1 1 0 8 0 amappl4 104 314 0 296 1 0 1 1 0 8 0 amappl3 96 1587 0 1473 3 0 3 3 0 8 0 amappl2 88 631 0 571 2 0 2 2 0 8 0 amappl1 80 8492 0 7889 15 0 15 15 0 8 1 amappl 88 2767 0 2599 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 469 0 438 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 469 0 438 1 0 1 1 0 8 0 vmmpekpl 168 5653 0 5611 3 0 3 3 0 8 0 vmmpepl 168 36718 0 34764 94 0 94 94 0 357 6 vmsppl 480 468 0 438 5 0 5 5 0 8 0 rwobjpl 72 14978 0 12300 50 0 50 50 0 8 0 pdppl 4096 945 0 876 97 22 75 85 0 8 6 pvpl 32 9854 0 0 80 0 80 80 0 265 0 pmappl 256 468 0 438 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 381 0 24 11 0 11 11 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(ffffffff833e6b41) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff8396db70) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff8396db70) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd800882ea28) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd800882ea28) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd800882ea28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806a2772c0,0,ffff8000377f8768,ffff8000377f8744,0,2,e73d596ef6776ded,ffff8000377f89c0) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff8000377f8988,ffff8000377f89c0,ffff8000377f87f0,ffff8000377f87f8) at uvm_fault_lower_io+0x319 sys/uvm/uvm_fault.c:1588 uvm_fault_lower(ffff8000377f8988,ffff8000377f89c0,ffff8000377f8900) at uvm_fault_lower+0x278 sys/uvm/uvm_fault.c:1362 uvm_fault(fffffd806bd04980,200000000000,0,2) at uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff8000377f8b10,200000000140) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff8000377f8b10) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x77ff37d9a4e0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) 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+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 mtx_enter(ffffffff8396db70) at mtx_enter+0xa5 sys/kern/kern_lock.c:241 uvm_map_clean(fffffd806bd04980,200000000000,200000004000,4) at uvm_map_clean+0x602 sys/uvm/uvm_map.c:4526 syscall(ffff80003c43f450) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43f450) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf2ed044efb0, count: 7 ddb{1}> trace x86_ipi_db(ffff8000299edff0) 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+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 mtx_enter(ffffffff8396db70) at mtx_enter+0xa5 sys/kern/kern_lock.c:241 uvm_map_clean(fffffd806bd04980,200000000000,200000004000,4) at uvm_map_clean+0x602 sys/uvm/uvm_map.c:4526 syscall(ffff80003c43f450) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43f450) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf2ed044efb0, count: -8