panic: mtx 0xffffffff83a08970: locking against myself Starting stack trace... panic(ffffffff833f42f2) at panic+0x1d0 sys/kern/subr_prf.c:229 mtx_enter_try(ffffffff83a08970) at mtx_enter_try+0x1da mtx_enter(ffffffff83a08970) at mtx_enter+0x62 sys/kern/kern_lock.c:261 uvm_pageclean(fffffd8007f50d30) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8007f50d30) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8007f50d30) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806328c870,0,ffff80003c458fc8,ffff80003c458fac,0,2,ebfc5d90bb3f82e7,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80003c4591e0,ffff80003c459218,ffff80003c459060,ffff80003c459048) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80003c4591e0,ffff80003c459218,ffff80003c459160) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806b9867b8,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80003c459390,200000000180) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 kerntrap(ffff80003c459390) at kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyout() at copyout+0x57 syscall(ffff80003c459590) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c459590) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x54650bfb210, count: 242 End of stack trace. syncing disks...WARNING: SPL NOT LOWERED ON TRAP EXIT a 0 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x688 TID PID UID PRFLAGS PFLAGS CPU COMMAND *522872 1678 0 0 0 0 syz-executor 248929 55202 0 0x14000 0x200 1 zerothread proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x761c2a72e380, count: 14 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 0xffffffff83a08970: locking against myself ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x761c2a72e380, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c46d530 rbx 0 rdx 0 rcx 0xffff80003c4427d8 rax 0x2a r8 0xffff80003c46d460 r9 0 r10 0x5d76050724a46b1a r11 0x9cead50d21ec2dea r12 0 r13 0 r14 0 r15 0 rip 0xffffffff817e24c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c46d4b0 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=522872 pid=1678 tcnt=2 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=0xffff80003c4439c8,0xffff80003c443c68 process=0xffff800038416720 user=0xffff80003c468000, vmspace=0xfffffd806eefb990 estcpu=36, cpticks=2, pctcpu=0.0, user=1, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 90749 250952 71639 0 2 0 syz-executor 90749 71154 71639 0 3 0x4000080 fsleep syz-executor * 1678 522872 79667 0 7 0 syz-executor 1678 423865 79667 0 3 0x4000080 fsleep syz-executor 37963 105464 82756 0 2 0 syz-executor 37963 493307 82756 0 3 0x4000001 uobjlk syz-executor 37963 228705 82756 0 3 0x4000001 inode syz-executor 37963 220241 82756 0 3 0x4000000 uvnsync syz-executor 59845 280679 65947 0 2 0 syz-executor 59845 426369 65947 0 3 0x4000080 fsleep syz-executor 51398 206174 6202 0 3 0x1 inode syz-executor 51398 110520 6202 0 3 0x4000080 sbwait syz-executor 51398 146904 6202 0 3 0x4000080 fsleep syz-executor 70309 328861 58409 0 3 0x81000 uvn_get syz-executor 70309 67977 58409 0 3 0x4081000 biowait syz-executor 70309 200087 58409 0 3 0x4081000 inode syz-executor 70309 68687 58409 0 3 0x4003000 suspend syz-executor 51053 8051 53825 0 3 0x3000 suspend syz-executor 51053 453060 53825 0 3 0x4081000 biowait syz-executor 80587 138308 1 0 3 0x100083 ttyin getty 41720 350572 0 0 3 0x14200 bored sosplice 58409 277205 23679 0 3 0x82 wait syz-executor 6202 205054 23679 0 3 0x82 nanoslp syz-executor 65947 230920 23679 0 3 0x82 nanoslp syz-executor 53825 457132 23679 0 3 0x82 wait syz-executor 71639 356594 23679 0 3 0x82 nanoslp syz-executor 79667 33974 23679 0 3 0x82 nanoslp syz-executor 90702 416624 23679 0 3 0x82 nanoslp syz-executor 82756 38622 23679 0 3 0x82 nanoslp syz-executor 23679 216782 70324 0 3 0x82 kqread syz-executor 70324 303138 10077 0 3 0x10008a sigsusp ksh 10077 377140 33437 0 3 0x98 kqread sshd-session 33437 168449 29925 0 3 0x92 kqread sshd-session 29925 452780 1 0 3 0x88 kqread sshd 48334 97451 77743 74 3 0x1100092 bpf pflogd 77743 292162 1 0 3 0x80 sbwait pflogd 81952 206297 1381 73 3 0x1100090 kqread syslogd 1381 339443 1 0 3 0x100082 sbwait syslogd 73495 511881 1 0 3 0x100080 kqread resolvd 39444 24603 36038 77 3 0x100092 kqread dhcpleased 70970 293966 36038 77 3 0x100092 kqread dhcpleased 36038 420863 1 0 3 0x80 kqread dhcpleased 39495 165468 0 0 3 0x14200 bored smr 55202 248929 0 0 7 0x14200 zerothread 70754 494623 0 0 3 0x14200 aiodoned aiodoned 53549 291440 0 0 3 0x14200 syncer update 58791 40552 0 0 3 0x14200 cleaner cleaner 96534 247846 0 0 3 0x14200 reaper reaper 58184 470179 0 0 3 0x14200 pgdaemon pagedaemon 99122 418860 0 0 3 0x14200 bored viomb 96165 176040 0 0 3 0x40014200 acpi0 acpi0 69183 235384 0 0 3 0x40014200 idle1 17887 110631 0 0 3 0x14200 bored softnet7 82381 156571 0 0 3 0x14200 bored softnet6 8351 312852 0 0 3 0x14200 bored softnet5 4234 386187 0 0 3 0x14200 bored softnet4 30970 435140 0 0 3 0x14200 bored softnet3 23021 411864 0 0 3 0x14200 bored softnet2 860 241569 0 0 3 0x14200 bored softnet1 85932 405913 0 0 3 0x14200 bored softnet0 97139 14642 0 0 3 0x14200 bored systqmp 31892 138764 0 0 3 0x14200 bored systq 63422 522554 0 0 3 0x14200 tmoslp softclockmp 46177 366256 0 0 3 0x40014200 tmoslp softclock 53561 57444 0 0 3 0x40014200 idle0 1 3055 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83a08980) #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+0x1ad sys/kern/kern_lock.c:311 #2 mtx_enter+0x62 sys/kern/kern_lock.c:261 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 #8 kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 #9 alltraps_kern_meltdown+0x7b #10 copyout+0x57 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 Process 37963 (syz-executor) thread 0xffff80003c442548 (493307) exclusive rrwlock inode r = 0 (0xfffffd806274e0e8) #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+0x42b sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:693 #6 ktrwriteraw+0x172 sys/kern/kern_ktrace.c:688 #7 ktrsyscall+0x32b ktrwrite sys/kern/kern_ktrace.c:-1 [inline] #7 ktrsyscall+0x32b sys/kern/kern_ktrace.c:183 #8 syscall+0x2e6 mi_syscall sys/sys/syscall_mi.h:154 [inline] #8 syscall+0x2e6 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 37963 (syz-executor) thread 0xffff80003c4434a8 (228705) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff838eaf38) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #1 ktrsysret+0xde sys/kern/kern_ktrace.c:209 #2 syscall+0xa43 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #2 syscall+0xa43 sys/arch/amd64/amd64/trap.c:769 #3 Xsyscall+0x128 Process 37963 (syz-executor) thread 0xffff80003c4439c8 (220241) exclusive rwlock uobjlk r = 0 (0xfffffd806b846188) #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+0x42b sys/kern/kern_rwlock.c:320 #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:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:283 #8 kerntrap+0x13c sys/arch/amd64/amd64/trap.c:491 #9 alltraps_kern_meltdown+0x7b #10 copyout+0x57 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #12 Xsyscall+0x128 Process 70309 (syz-executor) thread 0xffff80003c432d00 (67977) exclusive rrwlock inode r = 0 (0xfffffd806274e588) #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+0x42b sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 Process 70309 (syz-executor) thread 0xffff800032bf82b0 (200087) exclusive rwlock uvnsync r = 0 (0xffffffff839b9610) #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+0x42b sys/kern/kern_rwlock.c:320 #2 uvm_vnp_sync+0x31 sys/uvm/uvm_vnode.c:1488 #3 sys_sync+0xda sys/kern/vfs_syscalls.c:534 #4 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 shared rwlock vfslock r = 0 (0xffff800000b4a860) #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_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 vfs_busy+0x94 sys/kern/vfs_subr.c:246 #3 sys_sync+0x5d sys/kern/vfs_syscalls.c:528 #4 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xb08 sys/arch/amd64/amd64/trap.c:748 #5 Xsyscall+0x128 Process 51053 (syz-executor) thread 0xffff800032bf8540 (453060) exclusive rrwlock inode r = 0 (0xfffffd806274eb50) #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+0x42b sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10211 11096K 11303K 166960K 11554 0 pcb 19 13K 14K 166960K 92 0 rtable 203 7K 8K 166960K 299 0 pf 37 18K 22K 166960K 87 0 ifaddr 44 7K 8K 166960K 60 0 ifgroup 59 2K 2K 166960K 94 0 sysctl 3 1K 9K 166960K 7 0 counters 70 37K 37K 166960K 102 0 ioctlops 0 0K 4K 166960K 1518 0 iov 0 0K 20K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1347 85K 85K 166960K 1558 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 10 0K 0K 166960K 15 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 376 0 sigio 0 0K 0K 166960K 4 0 proc 72 115K 164K 166960K 560 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 53 0 in_multi 96 7K 7K 166960K 111 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 469 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 257 160K 173K 166960K 5241 0 UVM aobj 9 2K 2K 166960K 10 0 pinsyscall 43 86K 104K 166960K 1488 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 12 0 NDP 13 0K 2K 166960K 40 0 temp 40 8670K 8736K 166960K 12770 0 kqueue 13 20K 28K 166960K 68 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 56 0 52 1 0 1 1 0 8 0 rtentry 176 101 0 13 5 0 5 5 0 8 0 unpcb 144 296 0 207 6 2 4 4 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 103 0 98 4 0 4 4 0 8 3 arp 128 10 0 0 1 0 1 1 0 8 0 inpcb 328 457 0 445 7 0 7 7 0 8 5 nd6 144 19 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 11 0 11 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pfstscr 40 1 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 pfanchor 1288 4 0 4 1 0 1 1 0 8 1 pfstitem 24 36 0 1 1 0 1 1 0 8 0 pfstkey 128 36 0 1 2 0 2 2 0 8 0 pfstate 384 35 0 1 4 0 4 4 0 8 0 pfrule 1344 23 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 502 0 79 31 0 31 31 0 8 2 art_table 40 503 0 79 6 0 6 6 0 8 0 art_node 32 101 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 10 0 2 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2060 0 549 96 0 96 96 0 8 0 ffsino 296 2060 0 549 118 0 118 118 0 8 0 nchpl 144 2589 0 896 64 0 64 64 0 8 0 rtmask 32 3 0 3 1 0 1 1 0 8 1 uvmvnodes 80 2241 0 0 46 0 46 46 0 8 0 vnodes 216 2241 0 0 125 0 125 125 0 8 0 namei 1024 8264 0 8264 2 0 2 2 0 8 2 percpumem 16 66 0 16 1 0 1 1 0 8 0 kstatmem 264 50 0 22 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 17528 0 17526 5 2 3 3 1 8 2 plimitpl 152 66 0 47 1 0 1 1 0 8 0 sigapl 424 691 0 636 7 0 7 7 0 8 0 knotepl 120 296 0 0 9 0 9 9 0 8 0 kqueuepl 224 105 0 96 2 0 2 2 0 8 1 pipepl 344 120 0 92 3 0 3 3 0 8 0 fdescpl 528 666 0 634 3 0 3 3 0 8 0 filepl 160 3250 0 2944 16 0 16 16 0 8 3 lockfpl 104 333 0 328 3 0 3 3 0 8 2 lockfspl 48 59 0 54 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 38 0 20 1 0 1 1 0 8 0 ucredpl 104 295 0 282 1 0 1 1 0 8 0 zombiepl 144 638 0 636 1 0 1 1 0 8 0 processpl 1248 691 0 636 5 0 5 5 0 8 0 procpl 656 1131 0 1064 7 0 7 7 0 8 0 sosppl 168 3 0 3 1 0 1 1 0 8 1 sockpl 752 814 0 709 11 0 11 11 0 8 0 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 135 0 0 17 0 17 17 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 237 0 0 15 0 15 15 0 8 0 bufpl 280 8851 0 2709 440 0 440 440 0 8 0 anonpl 32 11480 0 0 93 0 93 93 0 246 0 amapchunkpl 152 15890 0 15343 32 5 27 28 0 158 4 amappl16 200 2259 0 1955 27 5 22 27 0 8 6 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 130 0 118 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 1320 0 1288 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 257 0 256 1 0 1 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 106 0 94 1 0 1 1 0 8 0 amappl6 120 178 0 174 1 0 1 1 0 8 0 amappl5 112 117 0 107 1 0 1 1 0 8 0 amappl4 104 300 0 280 1 0 1 1 0 8 0 amappl3 96 2947 0 2823 4 0 4 4 0 8 0 amappl2 88 640 0 577 2 0 2 2 0 8 0 amappl1 80 9217 0 8613 14 1 13 14 0 8 0 amappl 88 4508 0 4325 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 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 1 1 0 1 1 0 8 0 uaddrrnd 24 666 0 634 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 666 0 634 1 0 1 1 0 8 0 vmmpekpl 168 6958 0 6921 2 0 2 2 0 8 0 vmmpepl 168 47861 0 45534 111 0 111 111 0 357 9 vmsppl 488 665 0 634 5 1 4 5 0 8 0 rwobjpl 80 17652 0 14177 72 0 72 72 0 8 0 pdppl 4096 1339 0 1268 99 28 71 83 0 8 0 pvpl 32 19544 0 0 158 0 158 158 0 265 0 pmappl 256 665 0 634 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 282 0 31 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x761c2a72e380, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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 uvm_pagezero_thread(ffff8000ffffca48) at uvm_pagezero_thread+0xb5 sys/uvm/uvm_pmemrange.c:2213 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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 uvm_pagezero_thread(ffff8000ffffca48) at uvm_pagezero_thread+0xb5 sys/uvm/uvm_pmemrange.c:2213 end trace frame: 0x0, count: -5