panic: mtx 0xffffffff839582e0: locking against myself Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 202602 56754 32767 0x10 0 0 syz-executor *500017 47686 32767 0x10 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83330b82) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839582e0) at mtx_enter_try+0x1da mtx_enter(ffffffff839582e0) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086f4d28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805eb36678,0,ffff80003c4a7a88,ffff80003c4a7a6c,0,2,d0debd23d5e07e94,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7b20,ffff80003c4a7b08) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7c20) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbdb3f8,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4a7e30,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4a7e30) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f4e9f6fdd30, 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 0xffffffff839582e0: locking against myself ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83330b82) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839582e0) at mtx_enter_try+0x1da mtx_enter(ffffffff839582e0) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086f4d28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805eb36678,0,ffff80003c4a7a88,ffff80003c4a7a6c,0,2,d0debd23d5e07e94,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7b20,ffff80003c4a7b08) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7c20) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbdb3f8,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4a7e30,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4a7e30) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f4e9f6fdd30, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4a77c0 rbx 0xffff8000299eeddf rdx 0 rcx 0xffff80003c45a2c8 rax 0xffff8000299edff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x16e56176d2c5c22c r11 0xdc045f5a4f3d94cd r12 0xffff8000299eebe0 r13 0 r14 0 r15 0x1 rip 0xffffffff8216f0c5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4a77b0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=500017 pid=47686 tcnt=4 stat=onproc flags process=10 proc=0 runpri=86, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c45a560,0xffff80003c45aaa0 process=0xffff80003c45d890 user=0xffff80003c4a2000, vmspace=0xfffffd806bbdb3f8 estcpu=36, cpticks=3, pctcpu=0.0, user=1, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56754 202602 27792 32767 7 0x10 syz-executor 56754 504880 27792 32767 3 0x4000090 piperd syz-executor 56754 335067 27792 32767 3 0x4000090 fsleep syz-executor *47686 500017 23307 32767 7 0x10 syz-executor 47686 503780 23307 32767 2 0x4000010 syz-executor 47686 243113 23307 32767 3 0x4000010 biowait syz-executor 47686 132890 23307 32767 3 0x4000090 fsleep syz-executor 39673 380847 29197 32767 3 0x90 nanoslp syz-executor 39673 309692 29197 32767 3 0x4000090 pipewr syz-executor 39673 13156 29197 32767 3 0x4000090 pipewr syz-executor 78881 6296 19998 32767 3 0x90 nanoslp syz-executor 78881 401486 19998 32767 3 0x4000090 piperd syz-executor 78881 379169 19998 32767 3 0x4000090 kqread syz-executor 78881 330907 19998 32767 3 0x4000090 fsleep syz-executor 78881 453625 19998 32767 3 0x4000090 fsleep syz-executor 43103 450937 13993 32767 3 0x90 nanoslp syz-executor 43103 413731 13993 32767 3 0x4000090 sbwait syz-executor 43103 343928 13993 32767 3 0x4000090 fsleep syz-executor 15252 319908 0 0 3 0x14200 bored sosplice 23307 293889 20849 32767 3 0x90 nanoslp syz-executor 19998 81333 39703 32767 3 0x90 nanoslp syz-executor 30410 68145 53600 32767 3 0x90 wait syz-executor 54662 451622 30900 32767 3 0x90 wait syz-executor 29197 413863 15529 32767 3 0x90 nanoslp syz-executor 13993 128008 88705 32767 3 0x90 nanoslp syz-executor 7298 100411 6018 32767 3 0x10 getblk syz-executor 27792 194299 49140 32767 3 0x90 nanoslp syz-executor 30900 261994 75982 0 3 0x82 wait syz-executor 53600 120130 75982 0 3 0x82 wait syz-executor 39703 247830 75982 0 3 0x82 wait syz-executor 20849 513160 75982 0 3 0x82 wait syz-executor 15529 489890 75982 0 3 0x82 wait syz-executor 6018 77550 75982 0 3 0x82 wait syz-executor 88705 312489 75982 0 3 0x82 wait syz-executor 49140 51982 75982 0 3 0x82 wait syz-executor 75982 195466 7586 0 3 0x82 kqread syz-executor 7586 317194 42873 0 3 0x10008a sigsusp ksh 42873 212538 98663 0 3 0x98 kqread sshd-session 98663 443995 71928 0 3 0x92 kqread sshd-session 39713 143485 1 0 3 0x100083 ttyin getty 71928 50738 1 0 3 0x88 kqread sshd 60298 185394 27443 73 3 0x1100090 kqread syslogd 27443 412832 1 0 3 0x100082 sbwait syslogd 26858 506534 1 0 3 0x100080 kqread resolvd 16331 364538 47322 77 3 0x100092 kqread dhcpleased 16267 175794 47322 77 3 0x100092 kqread dhcpleased 47322 327922 1 0 3 0x80 kqread dhcpleased 59132 433841 0 0 3 0x14200 bored smr 19591 273933 0 0 2 0x14200 zerothread 55494 303975 0 0 3 0x14200 aiodoned aiodoned 63063 294046 0 0 3 0x14200 syncer update 11040 274668 0 0 3 0x14200 cleaner cleaner 54130 96190 0 0 3 0x14200 reaper reaper 89101 128173 0 0 3 0x14200 pgdaemon pagedaemon 95948 102845 0 0 3 0x14200 bored viomb 82654 411496 0 0 3 0x40014200 acpi0 acpi0 63773 367275 0 0 3 0x40014200 idle1 5583 117555 0 0 3 0x14200 bored softnet7 32042 364652 0 0 3 0x14200 bored softnet6 9590 133208 0 0 3 0x14200 bored softnet5 51711 113305 0 0 3 0x14200 bored softnet4 86365 251368 0 0 3 0x14200 bored softnet3 16249 48794 0 0 3 0x14200 bored softnet2 36874 339821 0 0 3 0x14200 bored softnet1 92340 498337 0 0 3 0x14200 bored softnet0 51033 460421 0 0 3 0x14200 bored systqmp 29550 380119 0 0 3 0x14200 bored systq 2992 82810 0 0 3 0x14200 tmoslp softclockmp 79876 315671 0 0 3 0x40014200 tmoslp softclock 50028 75229 0 0 3 0x40014200 idle0 1 201188 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 (0xffffffff839582f0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvn_get+0x674 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 47686 (syz-executor) thread 0xffff80003c45a2c8 (500017) exclusive rwlock uobjlk r = 0 (0xfffffd806a1e14e8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvn_io+0x667 sys/uvm/uvm_vnode.c:1298 #3 uvn_get+0x31d sys/uvm/uvm_vnode.c:1102 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff839582f0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvn_get+0x674 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #8 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 #9 recall_trap+0x8 Process 47686 (syz-executor) thread 0xffff80003c446d20 (243113) exclusive rrwlock inode r = 0 (0xfffffd80660b06a8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_ftruncate+0x1c1 sys/kern/vfs_syscalls.c:2916 #6 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #7 Xsyscall+0x128 Process 7298 (syz-executor) thread 0xffff8000ffff3238 (100411) exclusive rrwlock inode r = 0 (0xfffffd80660b0458) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #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:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c64f318) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 10959K 10968K 166960K 11297 0 pcb 17 12K 12K 166960K 17 0 rtable 217 6K 6K 166960K 272 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 2 1K 9K 166960K 10 0 counters 68 36K 36K 166960K 68 0 ioctlops 0 0K 2K 166960K 34 0 iov 0 0K 20K 166960K 21 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1334 84K 84K 166960K 1389 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 99 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 25 93K 121K 166960K 489 0 sigio 0 0K 0K 166960K 42 0 proc 64 131K 147K 166960K 525 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 58 0 in_multi 99 7K 7K 166960K 118 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 211 943K 943K 166960K 211 0 exec 0 0K 1K 166960K 413 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 275 178K 190K 166960K 6069 0 UVM aobj 34 4K 4K 166960K 37 0 pinsyscall 46 92K 113K 166960K 1526 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 54 0 NDP 11 0K 2K 166960K 27 0 temp 76 8652K 8718K 166960K 5702 0 kqueue 15 22K 28K 166960K 89 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 49 0 46 1 0 1 1 0 8 0 rtentry 176 102 0 2 5 0 5 5 0 8 0 unpcb 144 427 0 396 3 0 3 3 0 8 1 syncache 336 12 0 12 1 0 1 1 0 8 1 tcpcb 736 397 0 390 7 0 7 7 0 8 6 arp 128 12 0 0 1 0 1 1 0 8 0 inpcb 328 728 0 716 7 0 7 7 0 8 5 ip6q 72 2 0 0 1 0 1 1 0 8 0 ip6af 40 3 0 0 1 0 1 1 0 8 0 nd6 144 21 0 1 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 256 449 0 1 28 0 28 28 0 8 0 art_table 40 450 0 1 5 0 5 5 0 8 0 art_node 32 102 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 97 0 87 1 0 1 1 0 8 0 shmpl 112 34 0 3 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2063 0 556 95 0 95 95 0 8 0 ffsino 296 2064 0 556 117 0 117 117 0 8 0 nchpl 144 2766 0 1086 63 0 63 63 0 8 0 uvmvnodes 80 2145 0 0 44 0 44 44 0 8 0 vnodes 216 2145 0 0 120 0 120 120 0 8 0 namei 1024 8505 0 8504 1 0 1 1 0 8 0 percpumem 16 49 0 0 1 0 1 1 0 8 0 kstatmem 264 24 0 0 2 0 2 2 0 8 0 scxspl 216 9474 0 9472 9 2 7 8 1 8 6 plimitpl 152 257 0 231 2 0 2 2 0 8 0 sigapl 424 773 0 713 8 0 8 8 0 8 0 knotepl 120 312 0 0 10 0 10 10 0 8 0 kqueuepl 224 185 0 172 5 0 5 5 0 8 4 pipepl 344 172 0 142 6 2 4 6 0 8 1 fdescpl 528 750 0 713 3 0 3 3 0 8 0 filepl 160 4062 0 3817 16 0 16 16 0 8 5 lockfpl 104 119 0 116 1 0 1 1 0 8 0 lockfspl 48 35 0 32 1 0 1 1 0 8 0 sessionpl 144 30 0 14 1 0 1 1 0 8 0 pgrppl 48 47 0 23 1 0 1 1 0 8 0 ucredpl 104 658 0 639 1 0 1 1 0 8 0 zombiepl 144 715 0 713 1 0 1 1 0 8 0 processpl 1248 773 0 713 7 1 6 6 0 8 0 procpl 664 1400 0 1327 7 0 7 7 0 8 0 sosppl 168 7 0 7 1 0 1 1 0 8 1 sockpl 752 1212 0 1166 11 0 11 11 0 8 6 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 21 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 226 0 0 15 0 15 15 0 8 0 bufpl 280 3366 0 116 233 0 233 233 0 8 0 anonpl 32 9866 0 0 80 0 80 80 0 246 0 amapchunkpl 152 19752 0 19072 36 3 33 33 0 158 4 amappl16 200 2969 0 2927 19 7 12 15 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 119 0 109 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 1 0 1 0 8 0 amappl12 168 1351 0 1314 3 1 2 3 0 8 0 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 242 0 242 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 102 0 92 1 0 1 1 0 8 0 amappl6 120 178 0 174 1 0 1 1 0 8 0 amappl5 112 119 0 113 1 0 1 1 0 8 0 amappl4 104 300 0 284 1 0 1 1 0 8 0 amappl3 96 3571 0 3431 4 0 4 4 0 8 0 amappl2 88 680 0 622 2 0 2 2 0 8 0 amappl1 80 11172 0 10599 16 1 15 15 0 8 0 amappl 88 5331 0 5124 6 0 6 6 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 36 0 3 1 0 1 1 0 8 0 uaddrrnd 24 750 0 713 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 750 0 713 1 0 1 1 0 8 0 vmmpekpl 168 8404 0 8361 3 0 3 3 0 8 0 vmmpepl 168 55412 0 53254 118 0 118 118 0 357 17 vmsppl 488 749 0 713 7 2 5 6 0 8 0 rwobjpl 80 20528 0 17457 66 0 66 66 0 8 3 pdppl 4096 1508 0 1426 112 26 86 96 0 8 4 pvpl 32 18284 0 0 148 0 148 148 0 265 0 pmappl 256 749 0 713 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 290 0 29 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8379bff0) 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8388cf50) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8388cf50) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 intr_handler(ffff80003c4ad920,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7a8fb1431420, count: 8 ddb{0}> trace x86_ipi_db(ffffffff8379bff0) 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+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff8388cf50) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff8388cf50) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 intr_handler(ffff80003c4ad920,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7a8fb1431420, count: -7 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(ffffffff83330b82) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839582e0) at mtx_enter_try+0x1da mtx_enter(ffffffff839582e0) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086f4d28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805eb36678,0,ffff80003c4a7a88,ffff80003c4a7a6c,0,2,d0debd23d5e07e94,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7b20,ffff80003c4a7b08) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7c20) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbdb3f8,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4a7e30,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4a7e30) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f4e9f6fdd30, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83330b82) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_enter_try(ffffffff839582e0) at mtx_enter_try+0x1da mtx_enter(ffffffff839582e0) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd80086f4d28) at uvm_pageclean+0x28e sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd80086f4d28) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd805eb36678,0,ffff80003c4a7a88,ffff80003c4a7a6c,0,2,d0debd23d5e07e94,2) at uvn_get+0x686 sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7b20,ffff80003c4a7b08) at uvm_fault_lower_io+0x2cd sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4a7ca0,ffff80003c4a7cd8,ffff80003c4a7c20) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bbdb3f8,200000000000,0,2) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80003c4a7e30,2000000002c0) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003c4a7e30) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f4e9f6fdd30, count: -13