panic: mtx 0xffffffff838c36f8: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 8794 398 32767 0x10 0 0 syz-executor 424904 6759 0 0x14000 0x200 1 zerothread db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e6f9c) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838c36f8) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838c36f8) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80083fac30) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80083fac30) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80083fac30) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80687db858,1000,ffff80003c49d178,ffff80003c49d15c,0,2,ebcaab0fa0d97835,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c49d390,ffff80003c49d3c8,ffff80003c49d210,ffff80003c49d1f8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80003c49d390,ffff80003c49d3c8,ffff80003c49d310) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd806beee210,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c49d520,2000000011c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c49d520) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7dbc79ed6280, 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 0xffffffff838c36f8: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e6f9c) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838c36f8) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838c36f8) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80083fac30) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80083fac30) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80083fac30) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80687db858,1000,ffff80003c49d178,ffff80003c49d15c,0,2,ebcaab0fa0d97835,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c49d390,ffff80003c49d3c8,ffff80003c49d210,ffff80003c49d1f8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80003c49d390,ffff80003c49d3c8,ffff80003c49d310) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd806beee210,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c49d520,2000000011c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c49d520) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7dbc79ed6280, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c49cec0 rbx 0xffffffff8386bdcf cpu_info_full_primary+0x2dcf rdx 0 rcx 0xffff80002a297498 rax 0xffffffff8386aff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x6d34740fdd0b99ef r11 0x83021a66c7e3e371 r12 0xffffffff8386bbd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff81a3d365 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c49ceb0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=8794 pid=398 tcnt=3 stat=onproc flags process=10 proc=0 runpri=50, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a296f78,0xffff800035816f98 process=0xffff80003581aa08 user=0xffff80003c498000, vmspace=0xfffffd806beee210 estcpu=36, cpticks=1, pctcpu=0.0, user=1, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND * 398 8794 63947 32767 7 0x10 syz-executor 398 25762 63947 32767 3 0x4000010 uobjlk syz-executor 398 220605 63947 32767 3 0x4000010 getblk syz-executor 75814 74120 53021 32767 2 0x10 syz-executor 75814 264552 53021 32767 3 0x4000010 biowait syz-executor 67737 109622 72787 32767 3 0x90 nanoslp syz-executor 67737 377300 72787 32767 3 0x4000090 kqpoll syz-executor 67737 351104 72787 32767 3 0x4000090 fsleep syz-executor 67737 482275 72787 32767 3 0x4000090 fsleep syz-executor 38911 99650 9448 32767 3 0x90 nanoslp syz-executor 38911 113126 9448 32767 3 0x4000090 kqpoll syz-executor 38911 196889 9448 32767 3 0x4000090 fsleep syz-executor 96911 436090 40429 32767 3 0x90 nanoslp syz-executor 96911 74430 40429 32767 3 0x4000090 kqsel syz-executor 96911 22180 40429 32767 3 0x4000090 fsleep syz-executor 40089 471348 0 0 3 0x14200 bored sosplice 47538 131542 29371 32767 3 0x90 nanoslp syz-executor 47538 511082 29371 32767 3 0x4000090 msgwait syz-executor 47538 288739 29371 32767 3 0x4000090 fsleep syz-executor 9448 285888 85910 32767 3 0x90 nanoslp syz-executor 63947 120401 54809 32767 3 0x90 nanoslp syz-executor 72787 112251 27584 32767 3 0x90 nanoslp syz-executor 50226 487421 27999 32767 3 0x90 nanoslp syz-executor 29371 98987 29471 32767 3 0x90 nanoslp syz-executor 36918 364564 99566 32767 3 0x10 biowait syz-executor 53021 364004 62806 32767 3 0x90 nanoslp syz-executor 40429 336556 43500 32767 3 0x90 nanoslp syz-executor 54809 212340 51006 0 3 0x82 wait syz-executor 85910 135125 51006 0 3 0x82 wait syz-executor 27584 171269 51006 0 3 0x82 wait syz-executor 29471 507048 51006 0 3 0x82 wait syz-executor 27999 312218 51006 0 3 0x82 wait syz-executor 99566 213471 51006 0 3 0x82 wait syz-executor 43500 488650 51006 0 3 0x82 wait syz-executor 62806 89969 51006 0 3 0x82 wait syz-executor 51006 454686 76179 0 3 0x82 kqread syz-executor 76179 166932 77699 0 3 0x10008a sigsusp ksh 77699 267183 24494 0 3 0x98 kqread sshd-session 24494 285248 4191 0 3 0x92 kqread sshd-session 69421 298101 1 0 3 0x100083 ttyin getty 4191 499369 1 0 3 0x88 kqread sshd 7022 496263 88100 73 3 0x1100090 kqread syslogd 88100 482888 1 0 3 0x100082 sbwait syslogd 12961 105577 1 0 3 0x100080 kqread resolvd 30985 315014 58106 77 3 0x100092 kqread dhcpleased 61374 509370 58106 77 3 0x100092 kqread dhcpleased 58106 420831 1 0 3 0x80 kqread dhcpleased 83408 217075 0 0 3 0x14200 bored smr 6759 424904 0 0 7 0x14200 zerothread 42950 384660 0 0 3 0x14200 aiodoned aiodoned 64321 494996 0 0 3 0x14200 syncer update 53193 396150 0 0 3 0x14200 cleaner cleaner 47721 449190 0 0 3 0x14200 reaper reaper 48296 27703 0 0 3 0x14200 pgdaemon pagedaemon 47309 123225 0 0 3 0x14200 bored viomb 88713 515148 0 0 3 0x40014200 acpi0 acpi0 38564 7136 0 0 3 0x40014200 idle1 14126 22473 0 0 3 0x14200 bored softnet3 49404 198313 0 0 3 0x14200 bored softnet2 26833 402614 0 0 3 0x14200 bored softnet1 97110 80503 0 0 3 0x14200 bored softnet0 89200 181171 0 0 3 0x14200 bored systqmp 80983 461213 0 0 3 0x14200 bored systq 99418 44630 0 0 3 0x14200 tmoslp softclockmp 73704 111894 0 0 3 0x40014200 tmoslp softclock 23996 269439 0 0 3 0x40014200 idle0 1 55233 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 (0xffffffff838c3708) #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:1651 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 #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 398 (syz-executor) thread 0xffff80002a297498 (8794) exclusive rwlock uobjlk r = 0 (0xfffffd800db540b8) #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:1651 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 #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 (0xffffffff838c3708) #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:1651 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 #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 398 (syz-executor) thread 0xffff800035816f88 (25762) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839c8200) #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 398 (syz-executor) thread 0xffff800035816028 (220605) exclusive rrwlock inode r = 0 (0xfffffd806bd1a8c0) #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: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 75814 (syz-executor) thread 0xffff80002a296f78 (264552) exclusive rrwlock inode r = 0 (0xfffffd806bd1ad40) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bd1a0e0) #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #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 Process 36918 (syz-executor) thread 0xffff80002a297208 (364564) exclusive rrwlock inode r = 0 (0xfffffd806bd1a7a0) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3109 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cf628b0) #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3094 #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 10184 10954K 10965K 166960K 11261 0 pcb 17 12K 12K 166960K 17 0 rtable 236 6K 6K 166960K 355 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 3 1K 1K 166960K 3 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 29 0 iov 0 0K 0K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1350 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 8 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 25 93K 129K 166960K 184 0 sigio 0 0K 0K 166960K 1 0 proc 58 79K 140K 166960K 481 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 5 0 in_multi 99 7K 7K 166960K 99 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 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 354 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 265 168K 176K 166960K 3162 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 46 92K 112K 166960K 1219 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 27 2K 2K 166960K 27 0 temp 39 8679K 8743K 166960K 3901 0 kqueue 13 20K 25K 166960K 31 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 39 0 36 1 0 1 1 0 8 0 rtentry 176 112 0 1 6 0 6 6 0 8 0 unpcb 144 172 0 26 6 0 6 6 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 29 0 23 2 0 2 2 0 8 1 arp 128 18 0 0 1 0 1 1 0 8 0 inpcb 384 97 0 87 2 0 2 2 0 8 0 nd6 144 25 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 256 455 0 0 29 0 29 29 0 8 0 art_table 32 456 0 0 4 0 4 4 0 8 0 art_node 16 111 0 10 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 1598 0 93 95 0 95 95 0 8 0 ffsino 288 1598 0 93 108 0 108 108 0 8 0 nchpl 144 1848 0 174 63 0 63 63 0 8 0 uvmvnodes 80 1679 0 0 35 0 35 35 0 8 0 vnodes 216 1679 0 0 94 0 94 94 0 8 0 namei 1024 5521 0 5519 1 0 1 1 0 8 0 percpumem 16 47 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6280 0 6277 9 1 8 8 1 8 7 plimitpl 152 40 0 15 2 0 2 2 0 8 0 sigapl 424 468 0 412 8 0 8 8 0 8 0 futexpl 64 676 0 671 1 0 1 1 0 8 0 knotepl 120 100 0 0 4 0 4 4 0 8 0 kqueuepl 224 30 0 18 1 0 1 1 0 8 0 pipepl 336 103 0 76 3 0 3 3 0 8 0 fdescpl 520 449 0 412 4 0 4 4 0 8 0 filepl 160 1629 0 1280 15 0 15 15 0 8 0 lockfpl 104 19 0 16 1 0 1 1 0 8 0 lockfspl 48 11 0 8 1 0 1 1 0 8 0 sessionpl 144 21 0 5 1 0 1 1 0 8 0 pgrppl 48 29 0 5 1 0 1 1 0 8 0 ucredpl 104 126 0 107 1 0 1 1 0 8 0 zombiepl 144 413 0 412 1 0 1 1 0 8 0 processpl 1192 468 0 412 5 0 5 5 0 8 0 procpl 656 543 0 475 7 0 7 7 0 8 1 sosppl 168 1 0 0 1 0 1 1 0 8 0 sockpl 728 308 0 148 16 0 16 16 0 8 1 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 110 0 0 14 0 14 14 0 8 0 mcl2k 2048 17 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 159 0 0 10 0 10 10 0 8 0 bufpl 280 2283 0 117 155 0 155 155 0 8 0 anonpl 32 5392 0 0 44 0 44 44 0 246 0 amapchunkpl 152 9145 0 8561 29 0 29 29 0 158 5 amappl16 200 1802 0 1781 5 0 5 5 0 8 3 amappl15 192 9 0 9 1 0 1 1 0 8 1 amappl14 184 104 0 94 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 0 1 1 0 8 1 amappl12 168 1065 0 1028 2 0 2 2 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 2 0 2 1 0 1 1 0 8 1 amappl9 144 244 0 244 1 0 1 1 0 8 1 amappl8 136 19 0 18 1 0 1 1 0 8 0 amappl7 128 98 0 88 1 0 1 1 0 8 0 amappl6 120 173 0 170 1 0 1 1 0 8 0 amappl5 112 118 0 112 1 0 1 1 0 8 0 amappl4 104 290 0 274 1 0 1 1 0 8 0 amappl3 96 1447 0 1313 4 0 4 4 0 8 0 amappl2 88 610 0 555 2 0 2 2 0 8 0 amappl1 80 8142 0 7574 13 0 13 13 0 8 0 amappl 88 2514 0 2317 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 24 449 0 412 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 449 0 412 1 0 1 1 0 8 0 vmmpekpl 168 5071 0 5037 2 0 2 2 0 8 0 vmmpepl 168 34743 0 32625 95 0 95 95 0 357 1 vmsppl 480 448 0 412 7 1 6 6 0 8 0 rwobjpl 72 14003 0 11469 47 0 47 47 0 8 0 pdppl 4096 905 0 824 117 18 99 99 0 8 18 pvpl 32 12142 0 0 99 0 99 99 0 265 1 pmappl 256 448 0 412 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 396 0 21 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(ffffffff833e6f9c) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff838c36f8) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838c36f8) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80083fac30) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80083fac30) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80083fac30) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80687db858,1000,ffff80003c49d178,ffff80003c49d15c,0,2,ebcaab0fa0d97835,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c49d390,ffff80003c49d3c8,ffff80003c49d210,ffff80003c49d1f8) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80003c49d390,ffff80003c49d3c8,ffff80003c49d310) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd806beee210,200000001000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c49d520,2000000011c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c49d520) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7dbc79ed6280, 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_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x35 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x35 sys/dev/kcov.c:230 mtx_enter(ffffffff838c3730) at mtx_enter+0x75 sys/kern/kern_lock.c:239 uvm_pagezero_thread(ffff8000ffffc7b8) at uvm_pagezero_thread+0x201 sys/uvm/uvm_pmemrange.c:2224 end trace frame: 0x0, count: 9 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_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x35 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_const_cmp4(0,1) at __sanitizer_cov_trace_const_cmp4+0x35 sys/dev/kcov.c:230 mtx_enter(ffffffff838c3730) at mtx_enter+0x75 sys/kern/kern_lock.c:239 uvm_pagezero_thread(ffff8000ffffc7b8) at uvm_pagezero_thread+0x201 sys/uvm/uvm_pmemrange.c:2224 end trace frame: 0x0, count: -6