uvm_fault(0xffffffff8353da28, 0xffff8000175b20a4, 0, 2) -> d kernel: page fault trap, code=2 Stopped at memset+0x49: repe stosb %es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND *257402 21751 73 0x1100010 0 1K syslogd 463900 20446 0 0x14000 0x40000200 0 softclock memset() at memset+0x49 ffs_write(ffff80002a069ca0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806e28c998,ffff80002a069ec0,3,fffffd807f7d37b8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd806f8b3390,ffff80002a069ec0,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408 dofilewritev(ffff8000ffffdbe8,e,ffff80002a069ec0,0,ffff80002a069f80) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff8000ffffdbe8,ffff80002a06a030,ffff80002a069f80) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80002a06a030) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a06a030) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7368eda9e4f0, count: 7 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(0xffffffff8353da28, 0xffff8000175b20a4, 0, 2) -> d ddb{1}> trace memset() at memset+0x49 ffs_write(ffff80002a069ca0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806e28c998,ffff80002a069ec0,3,fffffd807f7d37b8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd806f8b3390,ffff80002a069ec0,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408 dofilewritev(ffff8000ffffdbe8,e,ffff80002a069ec0,0,ffff80002a069f80) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff8000ffffdbe8,ffff80002a06a030,ffff80002a069f80) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80002a06a030) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a06a030) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7368eda9e4f0, count: -8 ddb{1}> show registers rdi 0xffff8000175b20a4 rsi 0 rbp 0xffff80002a069bc0 rbx 0x1640a4 acpi_pdirpa+0x14ff15 rdx 0x4 rcx 0x4 rax 0 r8 0x3f58 __ALIGN_SIZE+0x2f58 r9 0xffff80002a069b20 r10 0xd70fc90159f3e652 r11 0xffff8000175b20a4 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xa4 r14 0xfffffd806e28c998 r15 0x1 rip 0xffffffff82e89339 memset+0x49 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a0699b8 ss 0x10 memset+0x49: repe stosb %es:(%rdi) ddb{1}> show proc PROC (syslogd) tid=257402 pid=21751 tcnt=1 stat=onproc flags process=1100010 proc=0 runpri=53, usrpri=54, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffcf40,0xffff8000ffffc2a8 process=0xffff8000ffff8498 user=0xffff80002a065000, vmspace=0xfffffd806ecbc530 estcpu=4, cpticks=6, pctcpu=12.36, user=11, sys=3787, intr=1104 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70767 313084 50540 0 2 0 syz-executor 70767 304627 50540 0 3 0x4000080 fsleep syz-executor 1797 47112 32344 0 2 0 syz-executor 1797 111984 32344 0 2 0x4000000 syz-executor 1797 92063 32344 0 3 0x4000080 fsleep syz-executor 1797 262422 32344 0 3 0x4000080 fsleep syz-executor 48221 417847 74681 0 2 0 syz-executor 48221 80933 74681 0 3 0x4000080 sbwait syz-executor 48221 130634 74681 0 3 0x4000080 sbufrcv syz-executor 48221 358141 74681 0 3 0x4000000 sbufrcv syz-executor 19069 166815 2373 0 2 0x480 syz-executor 19069 62362 2373 0 3 0x4000080 kqsel syz-executor 19069 166106 2373 0 3 0x4000080 fsleep syz-executor 30829 316755 44122 0 2 0x490 syz-executor 30829 385050 44122 0 3 0x4000090 kqsel syz-executor 30829 225420 44122 0 3 0x4000090 fsleep syz-executor 23015 68006 1 0 3 0x82 nanoslp getty 34613 95896 55453 -1 2 0x490 syz-executor 34613 466877 55453 -1 3 0x4000090 sbwait syz-executor 34613 426520 55453 -1 3 0x4000090 fsleep syz-executor 32436 47186 2252 0 3 0x80 nanoslp syz-executor 32436 36181 2252 0 3 0x4000080 kqread syz-executor 32436 287547 2252 0 3 0x4000080 fsleep syz-executor 3971 334148 51562 0 2 0x480 syz-executor 3971 474367 51562 0 3 0x4000080 ttyin syz-executor 32344 418940 19388 0 3 0x82 nanoslp syz-executor 50540 16035 19388 0 2 0x482 syz-executor 44122 144644 19388 0 2 0x482 syz-executor 2373 353721 19388 0 3 0x82 nanoslp syz-executor 2252 496292 19388 0 3 0x82 nanoslp syz-executor 55453 486435 19388 0 3 0x82 nanoslp syz-executor 51562 22998 19388 0 2 0x482 syz-executor 74681 441621 19388 0 3 0x82 nanoslp syz-executor 29935 281325 0 0 3 0x14200 bored sosplice 82307 75121 0 0 3 0x14280 nfsidl nfsio 40819 68180 0 0 3 0x14280 nfsidl nfsio 56477 223290 0 0 3 0x14280 nfsidl nfsio 6714 8646 0 0 3 0x14280 nfsidl nfsio 70150 299166 0 0 3 0x14280 nfsidl nfsio 31719 509057 0 0 3 0x14280 nfsidl nfsio 65385 383742 0 0 3 0x14280 nfsidl nfsio 74755 492393 0 0 3 0x14280 nfsidl nfsio 72576 55884 0 0 3 0x14280 nfsidl nfsio 71197 406625 0 0 3 0x14280 nfsidl nfsio 21472 410682 0 0 3 0x14280 nfsidl nfsio 56053 173345 0 0 3 0x14280 nfsidl nfsio 96989 129817 0 0 3 0x14280 nfsidl nfsio 66455 341075 0 0 3 0x14280 nfsidl nfsio 6145 148415 0 0 3 0x14280 nfsidl nfsio 53605 43442 0 0 3 0x14280 nfsidl nfsio 44960 205423 0 0 3 0x14280 nfsidl nfsio 81340 434592 0 0 3 0x14280 nfsidl nfsio 23393 424834 0 0 3 0x14280 nfsidl nfsio 92818 94374 0 0 3 0x14280 nfsidl nfsio 19388 516659 11867 0 3 0x82 kqread syz-executor 11867 309315 88559 0 3 0x10008a sigsusp ksh 88559 358186 51544 0 3 0x98 kqread sshd-session 51544 423841 95009 0 3 0x92 kqread sshd-session 95009 9210 1 0 3 0x88 kqread sshd 53081 46568 99467 74 3 0x1100092 bpf pflogd 99467 60305 1 0 3 0x80 sbwait pflogd *21751 257402 25486 73 7 0x1100010 syslogd 25486 265296 1 0 3 0x100082 sbwait syslogd 10582 32122 1 0 3 0x100080 kqread resolvd 32014 60939 50635 77 3 0x100092 kqread dhcpleased 76935 380816 50635 77 3 0x100092 kqread dhcpleased 50635 297084 1 0 3 0x80 kqread dhcpleased 24079 56741 0 0 3 0x14200 bored smr 29280 79523 0 0 2 0x14200 zerothread 61836 49188 0 0 3 0x14200 aiodoned aiodoned 3316 489536 0 0 3 0x14200 syncer update 95857 487410 0 0 3 0x14200 cleaner cleaner 27744 329690 0 0 3 0x14200 reaper reaper 71181 347953 0 0 3 0x14200 pgdaemon pagedaemon 63344 398989 0 0 3 0x14200 bored viomb 6289 449414 0 0 3 0x40014200 acpi0 acpi0 19678 513622 0 0 3 0x40014200 idle1 45462 82825 0 0 3 0x14200 bored softnet3 64274 310599 0 0 3 0x14200 bored softnet2 15534 198833 0 0 3 0x14200 bored softnet1 8792 91026 0 0 3 0x14200 bored softnet0 48007 234215 0 0 3 0x14200 bored systqmp 92576 458034 0 0 3 0x14200 bored systq 71775 465746 0 0 3 0x14200 tmoslp softclockmp 20446 463900 0 0 7 0x40014200 softclock 60349 372737 0 0 3 0x40014200 idle0 1 343285 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 48221 (syz-executor) thread 0xffff8000371b36f8 (80933) exclusive rwlock sbufrcv r = 0 (0xffff800001201350) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 soreceive+0x295 sys/kern/uipc_socket.c:947 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1082 #5 sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:973 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 3971 (syz-executor) thread 0xffff80003722b700 (474367) exclusive rrwlock inode r = 0 (0xfffffd807b54fe78) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 spec_open+0x302 sys/kern/spec_vnops.c:151 #6 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138 #7 vn_open+0x708 sys/kern/vfs_vnops.c:177 #8 vndioctl+0xcb1 sys/dev/vnd.c:457 #9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #10 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #11 sys_ioctl+0x67c #12 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 Process 21751 (syslogd) thread 0xffff8000ffffdbe8 (257402) exclusive rrwlock inode r = 0 (0xfffffd806e4d9700) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vn_write+0x18d sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_writev+0xd8 sys/kern/sys_generic.c:327 #8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83628520) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 vn_write+0x4e sys/kern/vfs_vnops.c:393 #2 dofilewritev+0x23c sys/kern/sys_generic.c:380 #3 sys_writev+0xd8 sys/kern/sys_generic.c:327 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10214 10181K 10495K 166960K 13461 0 pcb 17 20K 23K 166960K 455 0 rtable 212 11K 12K 166960K 3273 0 pf 39 18K 23K 166960K 315 0 ifaddr 40 7K 9K 166960K 395 0 ifgroup 59 2K 2K 166960K 452 0 sysctl 3 1K 1K 166960K 3 0 counters 66 36K 37K 166960K 270 0 ioctlops 0 0K 4K 166960K 1785 0 iov 1 4K 24K 166960K 85 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1506 95K 95K 166960K 3718 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 21 6K 6K 166960K 63 0 dirhash 15 2K 3K 166960K 39 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 18 65K 89K 166960K 2581 0 sigio 0 0K 0K 166960K 86 0 proc 72 91K 128K 166960K 2819 0 subproc 104 6K 7K 166960K 1131 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 170 0 in_multi 85 6K 7K 166960K 1003 0 ether_multi 1 0K 0K 166960K 7 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 1537 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 265 73K 91K 166960K 20974 0 UVM aobj 38 2K 2K 166960K 46 0 pinsyscall 43 86K 100K 166960K 5722 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 68 0 NDP 13 0K 2K 166960K 292 0 temp 81 6824K 7076K 166960K 106567 0 kqueue 16 26K 30K 166960K 215 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 295 0 289 1 0 1 1 0 8 0 rtentry 112 1222 0 1130 5 1 4 4 0 8 1 unpcb 144 1554 0 1532 16 14 2 7 0 8 1 syncache 336 13 0 13 6 6 0 1 0 8 0 tcpqe 32 5 0 5 4 4 0 1 0 8 0 tcpcb 808 773 0 768 34 30 4 14 0 8 3 arp 120 247 0 229 1 0 1 1 0 8 0 inpcb 336 2428 0 2412 57 54 3 20 0 8 1 nd6 136 277 0 255 2 1 1 2 0 8 0 pkpcb 40 7 0 7 4 3 1 1 0 8 1 kcovpl 48 87 0 79 1 0 1 1 0 8 0 ppxss 1168 14 0 14 6 5 1 1 0 8 1 pfstscr 40 4 0 4 3 2 1 1 0 8 1 pffrag 232 9 0 6 1 0 1 1 0 482 0 pffrnode 88 9 0 6 1 0 1 1 0 8 0 pffrent 40 15 0 12 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 pfrktable 1344 2 0 1 1 0 1 1 0 8 0 pfanchor 1288 4 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 206 0 157 1 0 1 1 0 8 0 pfstkey 128 210 0 161 2 0 2 2 0 8 0 pfstate 376 208 0 160 6 0 6 6 0 8 0 pfrule 1344 102 0 94 2 1 1 2 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 4284 0 3905 45 18 27 37 0 8 0 art_table 32 4288 0 3905 5 1 4 5 0 8 0 art_node 16 1217 0 1134 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 2 2 0 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 24 0 5 1 0 1 1 0 8 0 shmpl 112 43 0 8 1 0 1 1 0 8 0 dirhash 1024 35 0 16 3 0 3 3 0 8 0 dino2pl 256 4053 0 2397 105 1 104 104 0 8 0 ffsino 272 4053 0 2397 111 0 111 111 0 8 0 nchpl 144 6097 0 4302 67 0 67 67 0 8 0 uvmvnodes 80 6057 0 0 124 0 124 124 0 8 0 vnodes 216 6057 0 0 337 0 337 337 0 8 0 namei 1024 27952 0 27952 4 3 1 1 0 8 1 percpumem 16 149 0 102 1 0 1 1 0 8 0 kstatmem 264 230 0 204 5 2 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 45980 0 45980 10 9 1 8 1 8 1 plimitpl 152 412 0 395 1 0 1 1 0 8 0 sigapl 424 2760 0 2689 10 1 9 9 0 8 0 futexpl 64 20223 0 20216 8 7 1 1 0 8 0 knotepl 120 663 0 0 18 1 17 17 0 8 0 kqueuepl 216 423 0 409 5 4 1 3 0 8 0 pipepl 320 652 0 625 16 12 4 8 0 8 1 fdescpl 496 2719 0 2687 7 2 5 5 0 8 0 filepl 152 14846 0 14580 58 44 14 24 0 8 3 lockfpl 104 617 0 615 2 1 1 2 0 8 0 lockfspl 48 193 0 191 1 0 1 1 0 8 0 sessionpl 144 111 0 103 1 0 1 1 0 8 0 pgrppl 48 206 0 189 1 0 1 1 0 8 0 ucredpl 104 1824 0 1808 1 0 1 1 0 8 0 zombiepl 144 2689 0 2689 1 0 1 1 0 8 1 processpl 1160 2760 0 2689 6 0 6 6 0 8 0 procpl 648 4926 0 4839 9 1 8 8 0 8 0 srpgc 96 6 0 6 3 3 0 1 0 8 0 sosppl 168 9 0 9 5 5 0 1 0 8 0 sockpl 664 4334 0 4290 82 74 8 22 0 8 4 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 253 0 0 27 0 27 27 0 8 1 mtagpl 96 21 0 0 1 0 1 1 0 8 0 mbufpl 256 1157 0 0 64 0 64 64 0 8 0 bufpl 280 10086 0 2696 528 0 528 528 0 8 0 anonpl 24 372560 0 368358 96 41 55 74 0 185 17 amapchunkpl 152 65922 0 65311 52 18 34 34 0 158 10 amappl16 200 6107 0 6084 54 49 5 15 0 8 2 amappl15 192 6 0 5 1 0 1 1 0 8 0 amappl14 184 288 0 276 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 4610 0 4578 3 1 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 134 0 134 1 1 0 1 0 8 0 amappl8 136 20 0 17 1 0 1 1 0 8 0 amappl7 128 288 0 275 1 0 1 1 0 8 0 amappl6 120 933 0 931 1 0 1 1 0 8 0 amappl5 112 474 0 462 1 0 1 1 0 8 0 amappl4 104 592 0 573 1 0 1 1 0 8 0 amappl3 96 13078 0 12949 5 1 4 4 0 8 0 amappl2 88 1850 0 1781 2 0 2 2 0 8 0 amappl1 80 21648 0 21077 16 2 14 14 0 8 0 amappl 88 19830 0 19627 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 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 45 0 8 1 0 1 1 0 8 0 uaddrrnd 24 2719 0 2687 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2719 0 2687 1 0 1 1 0 8 0 vmmpekpl 168 24300 0 24240 4 0 4 4 0 8 0 vmmpepl 168 171663 0 169726 124 39 85 98 0 357 0 vmsppl 440 2718 0 2687 6 2 4 5 0 8 0 rwobjpl 56 54197 0 47132 107 7 100 100 0 8 0 pdppl 4096 5445 0 5374 226 155 71 83 0 8 0 pvpl 32 31909 0 0 258 0 258 258 0 265 0 pmappl 248 2718 0 2687 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 700 0 275 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834f4ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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+0xf sys/dev/kcov.c:154 __mp_acquire_count(ffffffff83628318,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x658 sys/kern/sched_bsd.c:460 sleep_finish(0,1) at sleep_finish+0x219 sys/kern/kern_synch.c:416 msleep(ffffffff835cf5f0,ffffffff834530d0,0,ffffffff830e528f,0) at msleep+0x13b sys/kern/kern_synch.c:249 softclock_thread(ffff8000fffff6c8) at softclock_thread+0x11f sys/kern/kern_timeout.c:807 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff834f4ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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+0xf sys/dev/kcov.c:154 __mp_acquire_count(ffffffff83628318,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x658 sys/kern/sched_bsd.c:460 sleep_finish(0,1) at sleep_finish+0x219 sys/kern/kern_synch.c:416 msleep(ffffffff835cf5f0,ffffffff834530d0,0,ffffffff830e528f,0) at msleep+0x13b sys/kern/kern_synch.c:249 softclock_thread(ffff8000fffff6c8) at softclock_thread+0x11f sys/kern/kern_timeout.c:807 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at memset+0x49: repe stosb %es:(%rdi) memset() at memset+0x49 ffs_write(ffff80002a069ca0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806e28c998,ffff80002a069ec0,3,fffffd807f7d37b8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd806f8b3390,ffff80002a069ec0,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408 dofilewritev(ffff8000ffffdbe8,e,ffff80002a069ec0,0,ffff80002a069f80) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff8000ffffdbe8,ffff80002a06a030,ffff80002a069f80) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80002a06a030) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a06a030) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7368eda9e4f0, count: 7 ddb{1}> trace memset() at memset+0x49 ffs_write(ffff80002a069ca0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806e28c998,ffff80002a069ec0,3,fffffd807f7d37b8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd806f8b3390,ffff80002a069ec0,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408 dofilewritev(ffff8000ffffdbe8,e,ffff80002a069ec0,0,ffff80002a069f80) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff8000ffffdbe8,ffff80002a06a030,ffff80002a069f80) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80002a06a030) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a06a030) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7368eda9e4f0, count: -8