panic: mtx 0xffffffff83a0e290: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *468968 5531 32767 0x10 0 0 syz-executor 469066 54679 32767 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e1a91) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83a0e290) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83a0e290) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80082809f8) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80082809f8) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80082809f8) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80716fcc68,0,ffff80003c474ca8,ffff80003c474c8c,0,2,bbfbed07f244efd9,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c474ec0,ffff80003c474ef8,ffff80003c474d40,ffff80003c474d28) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80003c474ec0,ffff80003c474ef8,ffff80003c474e40) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd806b183030,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c475050,2000000005c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c475050) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7719b6a26b40, 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 0xffffffff83a0e290: locking against myself ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833e1a91) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83a0e290) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83a0e290) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80082809f8) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80082809f8) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80082809f8) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80716fcc68,0,ffff80003c474ca8,ffff80003c474c8c,0,2,bbfbed07f244efd9,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c474ec0,ffff80003c474ef8,ffff80003c474d40,ffff80003c474d28) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80003c474ec0,ffff80003c474ef8,ffff80003c474e40) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd806b183030,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c475050,2000000005c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c475050) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7719b6a26b40, count: -13 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4749f0 rbx 0xffffffff83850dcf cpu_info_full_primary+0x2dcf rdx 0 rcx 0xffff80003c432cf8 rax 0xffffffff8384fff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x353bb24998e36c7 r11 0x1b3b42584d781f56 r12 0xffffffff83850bd0 cpu_info_full_primary+0x2bd0 r13 0 r14 0 r15 0x1 rip 0xffffffff812dbfb5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4749e0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=468968 pid=5531 tcnt=3 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=0xffff80003c433c58,0xffff80003c433748 process=0xffff8000fffece10 user=0xffff80003c470000, vmspace=0xfffffd806b183030 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND * 5531 468968 71219 32767 7 0x10 syz-executor 5531 355852 71219 32767 3 0x4000010 biowait syz-executor 5531 75384 71219 32767 3 0x4000090 fsleep syz-executor 54679 163348 8086 32767 2 0x10 syz-executor 54679 469066 8086 32767 7 0x4000010 syz-executor 26865 468571 28234 32767 2 0x10 syz-executor 82959 131891 33734 0 2 0x2 syz-executor 97221 496942 26065 32767 3 0x90 nanoslp syz-executor 97221 392406 26065 32767 3 0x4000090 kqsel syz-executor 97221 277237 26065 32767 3 0x4000090 fsleep syz-executor 44640 448336 63886 32767 3 0x90 nanoslp syz-executor 44640 25143 63886 32767 3 0x4000090 msgwait syz-executor 44640 188301 63886 32767 3 0x4000090 fsleep syz-executor 32028 210320 5596 0 3 0x82 sbwait sshd-session 93601 218651 0 0 3 0x14200 bored sosplice 28234 297428 13307 32767 2 0x10 syz-executor 63886 205355 49938 32767 3 0x90 nanoslp syz-executor 26065 91222 95356 32767 3 0x90 nanoslp syz-executor 71219 327205 92458 32767 3 0x90 nanoslp syz-executor 8086 39734 45029 32767 3 0x90 nanoslp syz-executor 43893 370341 59783 32767 3 0x10 biowait syz-executor 13307 109204 33734 0 3 0x82 wait syz-executor 49938 104552 33734 0 3 0x82 wait syz-executor 95356 115069 33734 0 3 0x82 wait syz-executor 92458 68633 33734 0 3 0x82 wait syz-executor 59783 288263 33734 0 3 0x82 wait syz-executor 45029 408855 33734 0 3 0x82 wait syz-executor 33734 437174 46321 0 3 0x82 nanoslp syz-executor 46321 178520 44247 0 3 0x10008a sigsusp ksh 44247 387328 63852 0 3 0x98 kqread sshd-session 63852 35122 5596 0 3 0x92 kqread sshd-session 18825 497229 1 0 3 0x100083 ttyin getty 5596 129728 1 0 3 0x88 kqread sshd 31528 440463 68636 73 3 0x1100090 kqread syslogd 68636 397860 1 0 3 0x100082 sbwait syslogd 79419 7530 1 0 3 0x100080 kqread resolvd 19150 379292 34457 77 3 0x100092 kqread dhcpleased 11509 357446 34457 77 3 0x100092 kqread dhcpleased 34457 17620 1 0 3 0x80 kqread dhcpleased 18046 159646 0 0 3 0x14200 bored smr 27565 271801 0 0 2 0x14200 zerothread 40671 243367 0 0 3 0x14200 aiodoned aiodoned 12154 377900 0 0 3 0x14200 syncer update 55973 202556 0 0 3 0x14200 cleaner cleaner 60958 352556 0 0 3 0x14200 reaper reaper 76105 177790 0 0 3 0x14200 pgdaemon pagedaemon 35517 374743 0 0 3 0x14200 bored viomb 19873 357174 0 0 3 0x40014200 acpi0 acpi0 19760 215892 0 0 3 0x40014200 idle1 55474 70834 0 0 3 0x14200 bored softnet3 1835 467869 0 0 3 0x14200 bored softnet2 73358 117537 0 0 3 0x14200 bored softnet1 96088 161911 0 0 3 0x14200 bored softnet0 32356 298649 0 0 3 0x14200 bored systqmp 73203 512822 0 0 3 0x14200 bored systq 25150 23833 0 0 3 0x14200 tmoslp softclockmp 48815 380206 0 0 3 0x40014200 tmoslp softclock 76457 336179 0 0 3 0x40014200 idle0 1 346330 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 (0xffffffff83a0e2a0) #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 5531 (syz-executor) thread 0xffff80003c432cf8 (468968) exclusive rwlock uobjlk r = 0 (0xfffffd806b2033c0) #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 (0xffffffff83a0e2a0) #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 5531 (syz-executor) thread 0xffff80003c433738 (355852) exclusive rrwlock inode r = 0 (0xfffffd8068e491c8) #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 43893 (syz-executor) thread 0xffff8000ffff07c8 (370341) exclusive rrwlock inode r = 0 (0xfffffd806b147b00) #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:693 #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:1864 #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 (0xfffffd807307ac10) #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864 #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 10181 10950K 10965K 166960K 11264 0 pcb 17 12K 12K 166960K 17 0 rtable 192 5K 6K 166960K 356 0 pf 27 16K 16K 166960K 31 0 ifaddr 34 6K 7K 166960K 44 0 ifgroup 42 1K 2K 166960K 50 0 sysctl 2 1K 1K 166960K 2 0 counters 60 35K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 29 0 iov 0 0K 12K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1612 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 12 0K 0K 166960K 26 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 70K 121K 166960K 400 0 sigio 0 0K 0K 166960K 3 0 proc 58 79K 115K 166960K 494 0 subproc 54 3K 4K 166960K 324 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 77 5K 7K 166960K 112 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 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 403 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 223 152K 178K 166960K 4534 0 UVM aobj 6 7K 7K 166960K 6 0 pinsyscall 43 86K 110K 166960K 1444 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 14 0 NDP 9 0K 2K 166960K 27 0 temp 33 8679K 8743K 166960K 4933 0 kqueue 13 20K 26K 166960K 35 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 43 0 40 1 0 1 1 0 8 0 rtentry 176 113 0 24 6 0 6 6 0 8 0 unpcb 144 146 0 126 2 0 2 2 0 8 1 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpcb 808 73 0 64 2 0 2 2 0 8 0 arp 128 18 0 4 1 0 1 1 0 8 0 inpcb 384 210 0 198 3 0 3 3 0 8 1 nd6 144 26 0 7 1 0 1 1 0 8 0 kcovpl 48 36 0 30 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 464 0 90 29 0 29 29 0 8 2 art_table 32 465 0 90 4 0 4 4 0 8 0 art_node 16 112 0 31 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1779 0 242 97 0 97 97 0 8 0 ffsino 288 1780 0 242 110 0 110 110 0 8 0 nchpl 144 2174 0 465 64 0 64 64 0 8 0 uvmvnodes 80 2113 0 0 44 0 44 44 0 8 0 vnodes 216 2113 0 0 118 0 118 118 0 8 0 namei 1024 6830 0 6829 2 0 2 2 0 8 1 percpumem 16 47 0 2 1 0 1 1 0 8 0 kstatmem 264 22 0 4 2 0 2 2 0 8 0 scxspl 216 7065 0 7062 3 2 1 2 1 8 0 plimitpl 152 112 0 92 2 0 2 2 0 8 1 sigapl 424 628 0 576 7 0 7 7 0 8 0 futexpl 64 2191 0 2188 1 0 1 1 0 8 0 knotepl 120 348 0 0 11 0 11 11 0 8 0 kqueuepl 224 50 0 40 1 0 1 1 0 8 0 pipepl 336 197 0 170 3 0 3 3 0 8 0 fdescpl 520 609 0 576 3 0 3 3 0 8 0 filepl 160 2570 0 2373 11 0 11 11 0 8 0 lockfpl 104 33 0 29 1 0 1 1 0 8 0 lockfspl 48 15 0 11 1 0 1 1 0 8 0 sessionpl 144 53 0 38 1 0 1 1 0 8 0 pgrppl 48 93 0 71 1 0 1 1 0 8 0 ucredpl 104 228 0 211 1 0 1 1 0 8 0 zombiepl 144 576 0 576 1 0 1 1 0 8 1 processpl 1192 628 0 576 5 0 5 5 0 8 0 procpl 656 877 0 818 7 0 7 7 0 8 1 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 728 404 0 369 5 0 5 5 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 109 0 0 14 0 14 14 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 205 0 0 13 0 13 13 0 8 0 bufpl 280 2594 0 118 177 0 177 177 0 8 0 anonpl 32 5630 0 0 46 0 46 46 0 246 0 amapchunkpl 152 14058 0 13613 30 0 30 30 0 158 9 amappl16 200 2285 0 2266 5 2 3 5 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 108 0 96 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1220 0 1189 2 0 2 2 0 8 0 amappl11 160 44 0 34 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 285 0 285 1 1 0 1 0 8 0 amappl8 136 73 0 72 1 0 1 1 0 8 0 amappl7 128 101 0 90 1 0 1 1 0 8 0 amappl6 120 177 0 173 1 0 1 1 0 8 0 amappl5 112 117 0 111 1 0 1 1 0 8 0 amappl4 104 293 0 279 1 0 1 1 0 8 0 amappl3 96 2379 0 2273 4 0 4 4 0 8 0 amappl2 88 649 0 588 2 0 2 2 0 8 0 amappl1 80 9780 0 9141 16 0 16 16 0 8 0 amappl 88 3812 0 3661 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 609 0 576 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 609 0 576 1 0 1 1 0 8 0 vmmpekpl 168 7315 0 7266 3 0 3 3 0 8 0 vmmpepl 168 46199 0 44202 105 0 105 105 0 357 7 vmsppl 480 608 0 576 7 1 6 6 0 8 0 rwobjpl 72 17326 0 14318 56 0 56 56 0 8 0 pdppl 4096 1225 0 1152 109 30 79 95 0 8 6 pvpl 32 13752 0 0 112 1 111 112 0 265 0 pmappl 256 608 0 576 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 397 0 33 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(ffffffff833e1a91) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff83a0e290) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff83a0e290) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd80082809f8) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80082809f8) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80082809f8) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd80716fcc68,0,ffff80003c474ca8,ffff80003c474c8c,0,2,bbfbed07f244efd9,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c474ec0,ffff80003c474ef8,ffff80003c474d40,ffff80003c474d28) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1651 uvm_fault_lower(ffff80003c474ec0,ffff80003c474ef8,ffff80003c474e40) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1418 uvm_fault(fffffd806b183030,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c475050,2000000005c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80003c475050) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7719b6a26b40, 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+0x1a kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1a sys/dev/kcov.c:153 _kernel_lock_held() at _kernel_lock_held+0x7f sys/kern/kern_lock.c:76 tsleep(fffffd8070f3dd38,11,ffffffff8332b031,0) at tsleep+0xcf sys/kern/kern_synch.c:124 getblk(fffffd8009ee3798,380,4000,0,ffffffffffffffff) at getblk+0x197 sys/kern/vfs_bio.c:1017 bread(fffffd8009ee3798,380,4000,ffff80003c488878) at bread+0x47 bio_doread sys/kern/vfs_bio.c:422 [inline] bread(fffffd8009ee3798,380,4000,ffff80003c488878) at bread+0x47 sys/kern/vfs_bio.c:467 ffs_vget(ffff800000b49800,548,ffff80003c488978) at ffs_vget+0x283 sys/ufs/ffs/ffs_vfsops.c:1247 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd80775e0d08,ffff80003c488dc8,ffff80003c488df8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c488d98) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80003c488d98) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80003c488d98,2,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 end trace frame: 0xffff80003c488f10, count: 0 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+0x1a kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1a sys/dev/kcov.c:153 _kernel_lock_held() at _kernel_lock_held+0x7f sys/kern/kern_lock.c:76 tsleep(fffffd8070f3dd38,11,ffffffff8332b031,0) at tsleep+0xcf sys/kern/kern_synch.c:124 getblk(fffffd8009ee3798,380,4000,0,ffffffffffffffff) at getblk+0x197 sys/kern/vfs_bio.c:1017 bread(fffffd8009ee3798,380,4000,ffff80003c488878) at bread+0x47 bio_doread sys/kern/vfs_bio.c:422 [inline] bread(fffffd8009ee3798,380,4000,ffff80003c488878) at bread+0x47 sys/kern/vfs_bio.c:467 ffs_vget(ffff800000b49800,548,ffff80003c488978) at ffs_vget+0x283 sys/ufs/ffs/ffs_vfsops.c:1247 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd80775e0d08,ffff80003c488dc8,ffff80003c488df8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003c488d98) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80003c488d98) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80003c488d98,2,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff80003c4339c8,ffffff9c,200000000180,1,0,ffff80003c488f40) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c488ff0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c488ff0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x992c4828e0, count: -17