uvm_fault(0xffffffff8355a950, 0xffff80001e8b4bdb, 0, 2) -> d kernel: page fault trap, code=2 Stopped at memset+0x49: repe stosb %es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND 404128 64824 0 0x2 0 0 syz-executor *450383 45591 0 0x2 0x1 1K syz-executor memset() at memset+0x49 ffs_write(ffff80002a0ee6b0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806bb8a6e0,ffff80002a0ee768,3,fffffd807f7d33a8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000359b5c08,fffffd806bb8a6e0,fffffd807f7d33a8,ffff80002a0ee838,ffff80002a0ee810) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrstruct(ffff8000359b5c08,ffffffff82fff9a0,ffff80002a0ee930,10) at ktrstruct+0x19a sys/kern/kern_ktrace.c:308 sys_nanosleep(ffff8000359b5c08,ffff80002a0eea70,ffff80002a0ee9c0) at sys_nanosleep+0x109 sys/kern/kern_time.c:292 syscall(ffff80002a0eea70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0eea70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7678589fdec0, 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(0xffffffff8355a950, 0xffff80001e8b4bdb, 0, 2) -> d ddb{1}> trace memset() at memset+0x49 ffs_write(ffff80002a0ee6b0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806bb8a6e0,ffff80002a0ee768,3,fffffd807f7d33a8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000359b5c08,fffffd806bb8a6e0,fffffd807f7d33a8,ffff80002a0ee838,ffff80002a0ee810) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrstruct(ffff8000359b5c08,ffffffff82fff9a0,ffff80002a0ee930,10) at ktrstruct+0x19a sys/kern/kern_ktrace.c:308 sys_nanosleep(ffff8000359b5c08,ffff80002a0eea70,ffff80002a0ee9c0) at sys_nanosleep+0x109 sys/kern/kern_time.c:292 syscall(ffff80002a0eea70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0eea70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7678589fdec0, count: -8 ddb{1}> show registers rdi 0xffff80001e8b4bdb rsi 0 rbp 0xffff80002a0ee5d0 rbx 0x2bdb __ALIGN_SIZE+0x1bdb rdx 0x5 rcx 0x5 rax 0 r8 0x420 r9 0xffff80002a0ee530 r10 0xf37491b08af36669 r11 0xffff80001e8b4bdb r12 0x3000 __ALIGN_SIZE+0x2000 r13 0x2bdb __ALIGN_SIZE+0x1bdb r14 0xfffffd806bb8a6e0 r15 0x1 rip 0xffffffff818ff4a9 memset+0x49 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80002a0ee3c8 ss 0x10 memset+0x49: repe stosb %es:(%rdi) ddb{1}> show proc PROC (syz-executor) tid=450383 pid=45591 tcnt=1 stat=onproc flags process=2 proc=1 runpri=32, usrpri=85, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000359b47c8,0xffff8000359b5990 process=0xffff80002db768e0 user=0xffff80002a0e9000, vmspace=0xfffffd806bddca50 estcpu=35, cpticks=1, pctcpu=0.0, user=0, sys=4, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26137 439568 64824 0 3 0x80 nanoslp syz-executor 26137 284845 64824 0 2 0x4000000 syz-executor 26137 238575 64824 0 3 0x4000080 fsleep syz-executor 26137 24996 64824 0 3 0x4000080 fsleep syz-executor 49371 496123 61417 0 2 0 syz-executor 49371 296191 61417 0 3 0x4000080 lockf syz-executor 49371 472427 61417 0 2 0x4000000 syz-executor 49371 480727 61417 0 2 0x4000000 syz-executor 29769 513765 38388 0 2 0 syz-executor 29769 128739 38388 0 3 0x4000080 fsleep syz-executor 61482 151476 2792 60929 2 0x490 syz-executor 61482 452309 2792 60929 3 0x4000090 kqsel syz-executor 61482 425308 2792 60929 3 0x4000090 fsleep syz-executor 61482 187931 2792 60929 3 0x4000090 fsleep syz-executor 60465 199008 45591 0 4 0 syz-executor 60465 429084 45591 0 3 0x4000080 fsleep syz-executor 14107 254094 1 0 3 0x100083 ttyin getty 64824 404128 93378 0 7 0x2 syz-executor 2792 209622 93378 0 2 0x482 syz-executor 10863 456401 93378 0 3 0x82 wait syz-executor *45591 450383 93378 0 7 0x3 syz-executor 61417 281141 93378 0 2 0x482 syz-executor 38388 196134 93378 0 2 0x482 syz-executor 90436 253529 0 0 3 0x14200 bored sosplice 93378 356930 55923 0 3 0x82 wait syz-executor 55923 230653 93042 0 3 0x10008a sigsusp ksh 93042 129091 47112 0 3 0x98 kqread sshd-session 47112 410471 92508 0 3 0x92 kqread sshd-session 92508 97972 1 0 3 0x88 kqread sshd 90998 150071 90593 74 3 0x1100092 bpf pflogd 90593 226381 1 0 3 0x80 sbwait pflogd 13920 310163 67298 73 3 0x1100090 kqread syslogd 67298 497427 1 0 3 0x100082 sbwait syslogd 74017 82651 1 0 3 0x100080 kqread resolvd 41821 351649 54908 77 3 0x100092 kqread dhcpleased 23736 318978 54908 77 3 0x100092 kqread dhcpleased 54908 348628 1 0 3 0x80 kqread dhcpleased 35438 377185 0 0 3 0x14200 bored smr 91944 4863 0 0 2 0x14200 zerothread 80605 438139 0 0 3 0x14200 aiodoned aiodoned 98356 183785 0 0 3 0x14200 syncer update 50499 65412 0 0 3 0x14200 cleaner cleaner 91131 184047 0 0 3 0x14200 reaper reaper 11704 359987 0 0 3 0x14200 pgdaemon pagedaemon 81051 324115 0 0 3 0x14200 bored viomb 58309 51969 0 0 3 0x40014200 acpi0 acpi0 86552 244349 0 0 3 0x40014200 idle1 16717 147527 0 0 3 0x14200 bored softnet3 72575 50603 0 0 3 0x14200 bored softnet2 12422 21553 0 0 3 0x14200 bored softnet1 87726 31471 0 0 3 0x14200 bored softnet0 75255 239055 0 0 3 0x14200 bored systqmp 73724 147355 0 0 3 0x14200 bored systq 80735 313880 0 0 3 0x14200 tmoslp softclockmp 53336 262495 0 0 3 0x40014200 tmoslp softclock 38098 132294 0 0 3 0x40014200 idle0 1 425868 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 45591 (syz-executor) thread 0xffff8000359b5c08 (450383) exclusive rrwlock inode r = 0 (0xfffffd807cae2928) #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 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ktrwriteraw+0x172 sys/kern/kern_ktrace.c:679 #7 ktrstruct+0x19a sys/kern/kern_ktrace.c:308 #8 sys_nanosleep+0x109 sys/kern/kern_time.c:292 #9 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #9 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83513ac8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 ktrstruct+0xe2 sys/kern/kern_ktrace.c:307 #2 sys_nanosleep+0x109 sys/kern/kern_time.c:292 #3 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #3 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 10118K 10549K 166960K 14177 0 pcb 17 15K 17K 166960K 500 0 rtable 218 9K 10K 166960K 5596 0 pf 40 18K 22K 166960K 511 0 ifaddr 43 9K 10K 166960K 748 0 ifgroup 64 2K 2K 166960K 817 0 sysctl 3 0K 2K 166960K 8 0 counters 68 36K 37K 166960K 468 0 ioctlops 0 0K 4K 166960K 1974 0 iov 0 0K 24K 166960K 111 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1501 94K 95K 166960K 5465 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 29 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 198 0 dirhash 15 2K 3K 166960K 57 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 16 57K 81K 166960K 4667 0 sigio 0 0K 0K 166960K 164 0 proc 74 103K 128K 166960K 5268 0 subproc 104 6K 7K 166960K 2200 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 408 0 in_multi 88 6K 7K 166960K 1963 0 ether_multi 1 0K 0K 166960K 25 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 2747 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 243 73K 92K 166960K 35121 0 UVM aobj 131 4K 4K 166960K 133 0 pinsyscall 41 82K 100K 166960K 9947 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 115 0 NDP 14 0K 2K 166960K 558 0 temp 75 6823K 6949K 166960K 155216 0 kqueue 14 22K 30K 166960K 360 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 120 583 0 580 3 2 1 3 0 8 0 rtentry 112 1987 0 1892 6 3 3 4 0 8 0 unpcb 144 1369 0 1350 18 17 1 4 0 8 0 syncache 336 8 0 8 7 7 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 808 926 0 921 35 34 1 14 0 8 0 arp 120 350 0 331 1 0 1 1 0 8 0 inpcb 336 3563 0 3486 48 41 7 13 0 8 0 nd6 136 535 0 514 1 0 1 1 0 8 0 pkpcb 40 145 0 145 8 7 1 1 0 8 1 kcovpl 48 169 0 161 1 0 1 1 0 8 0 ppxss 1168 28 0 28 13 13 0 1 0 8 0 pfstscr 40 9 0 9 8 8 0 1 0 8 0 pffrag 232 24 0 23 2 1 1 1 0 482 0 pffrnode 88 24 0 23 2 1 1 1 0 8 0 pffrent 40 78 0 77 2 1 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 5 0 2 1 0 1 1 0 8 0 pftag 88 5 0 2 3 2 1 1 0 8 0 pfstitem 24 412 0 370 1 0 1 1 0 8 0 pfstkey 128 444 0 396 3 0 3 3 0 8 0 pfstate 376 423 0 382 8 2 6 7 0 8 1 pfrule 1344 39 0 31 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 7847 0 7441 45 17 28 30 0 8 0 art_table 32 7849 0 7441 4 0 4 4 0 8 0 art_node 16 1951 0 1866 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 15 4 3 1 1 0 8 0 semapl 112 194 0 184 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 49 0 29 3 0 3 3 0 8 0 dino2pl 256 5710 0 3885 115 0 115 115 0 8 0 ffsino 272 5710 0 3885 123 0 123 123 0 8 0 nchpl 144 9080 0 7186 71 0 71 71 0 8 0 uvmvnodes 80 9011 0 0 184 0 184 184 0 8 0 vnodes 216 9011 0 0 501 0 501 501 0 8 0 namei 1024 46759 0 46759 10 9 1 2 0 8 1 percpumem 16 248 0 200 1 0 1 1 0 8 0 kstatmem 264 428 0 400 7 4 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 6 0 6 5 5 0 1 0 8 0 scxspl 216 92296 0 92296 15 14 1 8 1 8 1 plimitpl 152 890 0 872 1 0 1 1 0 8 0 sigapl 424 4694 0 4645 13 6 7 9 0 8 0 futexpl 64 32955 0 32949 14 13 1 1 0 8 0 knotepl 120 844 0 0 25 0 25 25 0 8 0 kqueuepl 216 787 0 776 11 10 1 5 0 8 0 pipepl 320 1079 0 1052 19 16 3 14 0 8 0 fdescpl 496 4631 0 4601 7 2 5 5 0 8 0 filepl 152 23423 0 23106 81 68 13 27 0 8 0 lockfpl 104 1192 0 1187 4 3 1 2 0 8 0 lockfspl 48 381 0 378 1 0 1 1 0 8 0 sessionpl 144 189 0 180 1 0 1 1 0 8 0 pgrppl 48 542 0 525 1 0 1 1 0 8 0 ucredpl 104 3131 0 3116 1 0 1 1 0 8 0 zombiepl 144 4648 0 4645 1 0 1 1 0 8 0 processpl 1160 4694 0 4645 7 3 4 6 0 8 0 procpl 648 8317 0 8257 13 7 6 8 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 16 0 14 8 7 1 1 0 8 0 sockpl 664 6084 0 5985 63 54 9 14 0 8 0 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 300 0 0 30 0 30 30 0 8 0 mtagpl 96 15 0 0 1 0 1 1 0 8 0 mbufpl 256 871 0 0 48 0 48 48 0 8 0 bufpl 280 14598 0 5586 644 0 644 644 0 8 0 anonpl 24 641525 0 635808 189 107 82 102 0 185 31 amapchunkpl 152 112840 0 112273 79 45 34 44 0 158 9 amappl16 200 9623 0 9544 72 55 17 18 0 8 8 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 447 0 435 1 0 1 1 0 8 0 amappl13 176 15 0 15 1 1 0 1 0 8 0 amappl12 168 7841 0 7810 3 1 2 2 0 8 0 amappl11 160 56 0 41 1 0 1 1 0 8 0 amappl10 152 16 0 16 1 1 0 1 0 8 0 amappl9 144 149 0 149 2 2 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 434 0 421 1 0 1 1 0 8 0 amappl6 120 1788 0 1786 1 0 1 1 0 8 0 amappl5 112 791 0 778 1 0 1 1 0 8 0 amappl4 104 809 0 791 1 0 1 1 0 8 0 amappl3 96 21352 0 21241 4 0 4 4 0 8 0 amappl2 88 2997 0 2920 2 0 2 2 0 8 0 amappl1 80 31162 0 30601 16 3 13 14 0 8 0 amappl 88 33370 0 33191 8 3 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma8192 8192 2 0 2 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 2 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 9 0 9 3 3 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 132 0 2 3 0 3 3 0 8 0 uaddrrnd 24 4631 0 4601 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4631 0 4601 1 0 1 1 0 8 0 vmmpekpl 168 39387 0 39336 4 1 3 3 0 8 0 vmmpepl 168 287382 0 285494 149 51 98 98 0 357 8 vmsppl 440 4630 0 4601 5 1 4 4 0 8 0 rwobjpl 56 85268 0 75128 151 4 147 147 0 8 2 pdppl 4096 9269 0 9202 327 256 71 79 0 8 4 pvpl 32 47851 0 0 384 2 382 382 0 265 0 pmappl 248 4630 0 4601 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 816 0 382 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83464ff0) 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+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80002a116ef0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a116ef0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aaf910b3590, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83464ff0) 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+0x33 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158 __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835138c0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80002a116ef0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a116ef0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7aaf910b3590, count: -11 ddb{0}> machine ddbcpu 1 Stopped at memset+0x49: repe stosb %es:(%rdi) memset() at memset+0x49 ffs_write(ffff80002a0ee6b0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806bb8a6e0,ffff80002a0ee768,3,fffffd807f7d33a8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000359b5c08,fffffd806bb8a6e0,fffffd807f7d33a8,ffff80002a0ee838,ffff80002a0ee810) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrstruct(ffff8000359b5c08,ffffffff82fff9a0,ffff80002a0ee930,10) at ktrstruct+0x19a sys/kern/kern_ktrace.c:308 sys_nanosleep(ffff8000359b5c08,ffff80002a0eea70,ffff80002a0ee9c0) at sys_nanosleep+0x109 sys/kern/kern_time.c:292 syscall(ffff80002a0eea70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0eea70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7678589fdec0, count: 7 ddb{1}> trace memset() at memset+0x49 ffs_write(ffff80002a0ee6b0) at ffs_write+0xbab sys/ufs/ffs/ffs_vnops.c:401 VOP_WRITE(fffffd806bb8a6e0,ffff80002a0ee768,3,fffffd807f7d33a8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000359b5c08,fffffd806bb8a6e0,fffffd807f7d33a8,ffff80002a0ee838,ffff80002a0ee810) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682 ktrstruct(ffff8000359b5c08,ffffffff82fff9a0,ffff80002a0ee930,10) at ktrstruct+0x19a sys/kern/kern_ktrace.c:308 sys_nanosleep(ffff8000359b5c08,ffff80002a0eea70,ffff80002a0ee9c0) at sys_nanosleep+0x109 sys/kern/kern_time.c:292 syscall(ffff80002a0eea70) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0eea70) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7678589fdec0, count: -8