uvm_fault(0xfffffd806b998d70, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *168505 31749 0 0 0x4000000 1K syz-executor 207480 44456 0 0x2 0 0 syz-executor ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003b841a18,ffff80003c457740,ffff80003c457690) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c457740) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c457740) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27ddf2c6cb0, count: 10 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: uvm_fault(0xfffffd806b998d70, 0xf, 0, 1) -> e ddb{1}> trace ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003b841a18,ffff80003c457740,ffff80003c457690) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c457740) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c457740) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27ddf2c6cb0, count: -5 ddb{1}> show registers rdi 0xffff80002dff6000 rsi 0x1e0d __ALIGN_SIZE+0xe0d rbp 0xffff80003c457450 rbx 0xfffffd80097fb208 rdx 0xffff80002dff6000 rcx 0x1e0c __ALIGN_SIZE+0xe0c rax 0xffffffff81d6bf13 ktrops+0x43 r8 0xfffffd806a395720 r9 0xfffffd80097fb208 r10 0x5e15d3654a4af246 r11 0xd911427e0025e55b r12 0xffff80003b841a18 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x8000053c __kernel_virt_to_phys+0x53c rip 0xffffffff81d6bf28 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c4573d0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb{1}> show proc PROC (syz-executor) tid=168505 pid=31749 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=73, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003b8402c0,0xffff80003b841260 process=0xffff8000390261d0 user=0xffff80003c452000, vmspace=0xfffffd806b998d70 estcpu=23, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 29563 263512 7922 0 2 0 syz-executor 92451 302189 96789 0 2 0 syz-executor 92451 233589 96789 0 2 0x4000000 syz-executor 91587 386300 29600 60929 3 0x90 nanoslp syz-executor 91587 266801 29600 60929 3 0x4000090 sbwait syz-executor 91587 24668 29600 60929 3 0x4000090 fsleep syz-executor 31749 447375 18221 0 2 0 syz-executor *31749 168505 18221 0 7 0x4000000 syz-executor 31749 35119 18221 0 3 0x4000080 fsleep syz-executor 73553 520930 58212 0 3 0x80 nanoslp syz-executor 73553 56303 58212 0 3 0x4000080 kqread syz-executor 73553 366541 58212 0 3 0x4000080 kqread syz-executor 73553 305748 58212 0 3 0x4000080 fsleep syz-executor 58212 305531 30758 0 3 0x82 nanoslp syz-executor 18221 54848 30758 0 3 0x82 nanoslp syz-executor 70202 324733 30758 0 2 0x2 syz-executor 29600 122222 30758 0 3 0x82 nanoslp syz-executor 96789 168426 30758 0 3 0x82 nanoslp syz-executor 7922 229612 30758 0 3 0x82 nanoslp syz-executor 26361 468112 30758 0 3 0x2 biowait syz-executor 44456 207480 30758 0 7 0x2 syz-executor 30758 459524 97900 0 3 0x82 kqread syz-executor 97900 350513 7417 0 3 0x10008a sigsusp ksh 7417 245609 68598 0 3 0x98 kqread sshd-session 68598 412574 50722 0 3 0x92 kqread sshd-session 10673 217439 1 0 3 0x100083 ttyin getty 50722 87429 1 0 3 0x88 kqread sshd 47303 444662 31040 74 3 0x1100092 bpf pflogd 31040 159204 1 0 3 0x80 sbwait pflogd 61270 141148 75124 73 3 0x1100090 kqread syslogd 75124 58436 1 0 3 0x100082 sbwait syslogd 46555 196469 1 0 3 0x100080 kqread resolvd 92020 112351 84961 77 3 0x100092 kqread dhcpleased 9459 171467 84961 77 3 0x100092 kqread dhcpleased 84961 265409 1 0 3 0x80 kqread dhcpleased 43555 283072 0 0 3 0x14200 bored smr 93931 199272 0 0 2 0x14200 zerothread 58271 355220 0 0 3 0x14200 aiodoned aiodoned 40104 141554 0 0 3 0x14200 syncer update 94340 136998 0 0 3 0x14200 cleaner cleaner 65110 399788 0 0 3 0x14200 reaper reaper 49279 185575 0 0 3 0x14200 pgdaemon pagedaemon 31783 50596 0 0 3 0x14200 bored viomb 32656 270236 0 0 3 0x40014200 acpi0 acpi0 66150 422169 0 0 3 0x40014200 idle1 37518 432885 0 0 3 0x14200 bored softnet7 17797 207355 0 0 3 0x14200 bored softnet6 97131 314107 0 0 3 0x14200 bored softnet5 1424 103466 0 0 3 0x14200 bored softnet4 65076 187712 0 0 3 0x14200 bored softnet3 24253 385973 0 0 3 0x14200 bored softnet2 93364 102850 0 0 3 0x14200 bored softnet1 70733 415250 0 0 3 0x14200 bored softnet0 36978 143005 0 0 3 0x14200 bored systqmp 48939 99880 0 0 3 0x14200 bored systq 60763 217500 0 0 3 0x14200 tmoslp softclockmp 45563 245408 0 0 3 0x40014200 tmoslp softclock 33747 157511 0 0 3 0x40014200 idle0 1 209053 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 92451 (syz-executor) thread 0xffff80003b840558 (233589) exclusive rrwlock inode r = 0 (0xfffffd806b7247d0) #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 dovutimens+0x35b sys/kern/vfs_syscalls.c:2744 #6 sys_utimes+0x278 doutimensat sys/kern/vfs_syscalls.c:2703 [inline] #6 sys_utimes+0x278 sys/kern/vfs_syscalls.c:2643 #7 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #8 Xsyscall+0x128 Process 31749 (syz-executor) thread 0xffff80003b841a18 (168505) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839bfc60) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:367 #3 getblk+0x197 sys/kern/vfs_bio.c:1013 #4 bread+0x45 bio_doread sys/kern/vfs_bio.c:418 [inline] #4 bread+0x45 sys/kern/vfs_bio.c:463 #5 ffs_update+0x198 sys/ufs/ffs/ffs_inode.c:91 #6 ufs_inactive+0x2e1 sys/ufs/ufs/ufs_inode.c:95 #7 VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 #8 vrele+0x129 sys/kern/vfs_subr.c:844 #9 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122 #10 ktrops+0x26c sys/kern/kern_ktrace.c:573 #11 doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] #11 doktrace+0x6bd sys/kern/kern_ktrace.c:517 #12 sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #14 Xsyscall+0x128 Process 70202 (syz-executor) thread 0xffff8000ffff27d8 (324733) exclusive rrwlock inode r = 0 (0xfffffd806b724c70) #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 vget+0x2a2 sys/kern/vfs_subr.c:693 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 dofstatat+0xf2 sys/kern/vfs_syscalls.c:2086 #12 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #13 Xsyscall+0x128 Process 26361 (syz-executor) thread 0xffff80002a2b8018 (468112) exclusive rrwlock inode r = 0 (0xfffffd806b7240e0) #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:746 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806bbf5d88) #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:746 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10205 11097K 11100K 166960K 11348 0 pcb 17 13K 13K 166960K 45 0 rtable 216 7K 7K 166960K 276 0 pf 34 17K 81K 166960K 58 0 ifaddr 44 7K 8K 166960K 53 0 ifgroup 55 2K 2K 166960K 68 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 88 0 ioctlops 0 0K 4K 166960K 1495 0 iov 0 0K 12K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1341 84K 85K 166960K 1424 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 36 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 85K 166960K 227 0 sigio 0 0K 0K 166960K 3 0 proc 73 131K 164K 166960K 549 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 77 0 in_multi 103 7K 7K 166960K 106 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 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 379 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 216 166K 177K 166960K 3870 0 UVM aobj 4 2K 2K 166960K 5 0 pinsyscall 40 80K 100K 166960K 1335 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 12 0K 2K 166960K 33 0 temp 76 8656K 8732K 166960K 9920 0 kqueue 15 22K 26K 166960K 47 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 43 0 40 1 0 1 1 0 8 0 rtentry 176 98 0 1 5 0 5 5 0 8 0 unpcb 144 93 0 74 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 34 0 28 1 0 1 1 0 8 0 arp 128 10 0 0 1 0 1 1 0 8 0 inpcb 328 228 0 218 7 0 7 7 0 8 5 nd6 144 19 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 9 0 9 1 0 1 1 0 8 1 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 24 0 0 1 0 1 1 0 8 0 pfstkey 128 24 0 0 1 0 1 1 0 8 0 pfstate 384 24 0 0 3 0 3 3 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 442 0 0 28 0 28 28 0 8 0 art_table 40 443 0 0 5 0 5 5 0 8 0 art_node 32 98 0 11 1 0 1 1 0 8 0 semapl 112 34 0 32 1 0 1 1 0 8 0 shmpl 112 2 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1744 0 232 95 0 95 95 0 8 0 ffsino 296 1744 0 232 117 0 117 117 0 8 0 nchpl 144 2092 0 400 63 0 63 63 0 8 0 uvmvnodes 80 1862 0 0 38 0 38 38 0 8 0 vnodes 216 1862 0 0 104 0 104 104 0 8 0 namei 1024 6331 0 6329 1 0 1 1 0 8 0 percpumem 16 59 0 10 1 0 1 1 0 8 0 kstatmem 264 36 0 10 3 0 3 3 0 8 1 scxspl 216 7608 0 7607 9 1 8 8 1 8 7 plimitpl 152 36 0 19 1 0 1 1 0 8 0 sigapl 424 538 0 487 7 0 7 7 0 8 0 knotepl 120 531 0 0 17 0 17 17 0 8 0 kqueuepl 224 52 0 41 1 0 1 1 0 8 0 pipepl 344 112 0 85 3 0 3 3 0 8 0 fdescpl 528 516 0 487 3 0 3 3 0 8 0 filepl 160 2067 0 1846 12 0 12 12 0 8 2 lockfpl 104 52 0 50 1 0 1 1 0 8 0 lockfspl 48 23 0 21 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 31 0 14 1 0 1 1 0 8 0 ucredpl 104 142 0 127 1 0 1 1 0 8 0 zombiepl 144 487 0 487 1 0 1 1 0 8 1 processpl 1232 538 0 487 5 0 5 5 0 8 0 procpl 664 698 0 639 6 0 6 6 0 8 0 sockpl 752 370 0 338 10 0 10 10 0 8 6 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 136 0 0 17 0 17 17 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 133 0 0 9 0 9 9 0 8 0 bufpl 280 3142 0 122 216 0 216 216 0 8 0 anonpl 32 7443 0 0 61 0 61 61 0 246 0 amapchunkpl 152 11955 0 11542 32 3 29 29 0 158 8 amappl16 200 2521 0 2496 15 0 15 15 0 8 10 amappl15 192 30 0 30 1 1 0 1 0 8 0 amappl14 184 113 0 101 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1171 0 1143 3 1 2 2 0 8 0 amappl11 160 53 0 38 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 252 0 251 1 0 1 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 106 0 94 1 0 1 1 0 8 0 amappl6 120 179 0 176 1 0 1 1 0 8 0 amappl5 112 127 0 116 1 0 1 1 0 8 0 amappl4 104 342 0 323 1 0 1 1 0 8 0 amappl3 96 1770 0 1688 5 2 3 3 0 8 0 amappl2 88 741 0 668 2 0 2 2 0 8 0 amappl1 80 8614 0 8019 15 0 15 15 0 8 2 amappl 88 3163 0 3021 4 0 4 4 0 92 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 1 1 1 0 8 1 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 1 1 0 1 1 0 8 0 uaddrrnd 24 516 0 487 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 516 0 487 1 0 1 1 0 8 0 vmmpekpl 168 5785 0 5748 2 0 2 2 0 8 0 vmmpepl 168 39892 0 38042 98 0 98 98 0 357 10 vmsppl 488 515 0 487 5 0 5 5 0 8 1 rwobjpl 80 15932 0 13165 61 0 61 61 0 8 3 pdppl 4096 1040 0 974 100 28 72 84 0 8 6 pvpl 32 14251 0 0 115 0 115 115 0 265 0 pmappl 256 515 0 487 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 269 0 30 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8378eff0) 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(ffffffff839bfa58) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839bfa58) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 intr_handler(ffff80002a323910,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __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(ffffffff839bfa58) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839bfa58) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 syscall(ffff80002a323af0) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a323af0) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f90f385abf0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff8378eff0) 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(ffffffff839bfa58) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839bfa58) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 intr_handler(ffff80002a323910,ffff800000079a80) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __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(ffffffff839bfa58) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839bfa58) at __mp_lock+0x1a3 sys/kern/kern_lock.c:165 syscall(ffff80002a323af0) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a323af0) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f90f385abf0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003b841a18,ffff80003c457740,ffff80003c457690) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c457740) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c457740) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27ddf2c6cb0, count: 10 ddb{1}> trace ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003b841a18,ffffffffffffffff,0,8000053c,fffffd806a395720,fffffd80097fb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a395720,4,53c,0,ffff80003b841a18) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003b841a18,ffff80003c457740,ffff80003c457690) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c457740) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c457740) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x27ddf2c6cb0, count: -5