uvm_fault(0xffffffff83962b90, 0xffff8000014fb0aa, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x66f: movzwl 0xc(%r15,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND *156758 99520 0 0 0x4000000 0 syz-executor 518288 32532 0 0 0x4000000 1 syz-executor arp_rtrequest(ffff800000039058,1,fffffd805c07f5a8) at arp_rtrequest+0x66f arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800000039058,1,fffffd805c07f5a8) at arp_rtrequest+0x66f sys/netinet/if_ether.c:184 rtrequest(1,ffff800030fd22b0,0,ffff800030fd2230,0) at rtrequest+0xc5c sys/net/route.c:1117 rtm_output(ffff800001498c00,ffff800030fd2358,ffff800030fd22b0,0,0) at rtm_output+0x876 sys/net/rtsock.c:973 route_output(fffffd805eae2900,ffff800010fdd6d8) at route_output+0x9a1 sys/net/rtsock.c:878 route_send(ffff800010fdd6d8,fffffd805eae2900,0,0) at route_send+0xd7 sys/net/rtsock.c:342 sosend(ffff800010fdd6d8,0,ffff800030fd24f8,0,0,802) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c4227e0,6,ffff800030fd25f0,802,ffff800030fd26a0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80003c4227e0,ffff800030fd2750,ffff800030fd26a0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff800030fd2750) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fd2750) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a7b48758a0, count: 5 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: uvm_fault(0xffffffff83962b90, 0xffff8000014fb0aa, 0, 1) -> e ddb{0}> trace arp_rtrequest(ffff800000039058,1,fffffd805c07f5a8) at arp_rtrequest+0x66f arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800000039058,1,fffffd805c07f5a8) at arp_rtrequest+0x66f sys/netinet/if_ether.c:184 rtrequest(1,ffff800030fd22b0,0,ffff800030fd2230,0) at rtrequest+0xc5c sys/net/route.c:1117 rtm_output(ffff800001498c00,ffff800030fd2358,ffff800030fd22b0,0,0) at rtm_output+0x876 sys/net/rtsock.c:973 route_output(fffffd805eae2900,ffff800010fdd6d8) at route_output+0x9a1 sys/net/rtsock.c:878 route_send(ffff800010fdd6d8,fffffd805eae2900,0,0) at route_send+0xd7 sys/net/rtsock.c:342 sosend(ffff800010fdd6d8,0,ffff800030fd24f8,0,0,802) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c4227e0,6,ffff800030fd25f0,802,ffff800030fd26a0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80003c4227e0,ffff800030fd2750,ffff800030fd26a0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff800030fd2750) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fd2750) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a7b48758a0, count: -10 ddb{0}> show registers rdi 0xffff80002b3cd000 rsi 0x903 rbp 0xffff800030fd2100 rbx 0xde rdx 0xffff80002b3cd000 rcx 0x100040600080100 rax 0xfffffd805ea77be0 r8 0x10 r9 0xfffffd805c07f5a8 r10 0xf192fb4f353e60a9 r11 0xd07870de7cc3148b r12 0x3a r13 0xfffffd805ea77b00 r14 0xfffffd805c07f5a8 r15 0xffff8000014fafc0 rip 0xffffffff82df1b2f arp_rtrequest+0x66f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800030fd2080 ss 0x10 arp_rtrequest+0x66f: movzwl 0xc(%r15,%rbx,1),%ecx ddb{0}> show proc PROC (syz-executor) tid=156758 pid=99520 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffeb218,0xffff80003c423750 process=0xffff8000fffe4020 user=0xffff800030fcd000, vmspace=0xfffffd806810d200 estcpu=36, cpticks=2, pctcpu=0.0, user=1, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21316 330245 40850 0 2 0 syz-executor 21316 47241 40850 0 3 0x4000080 msgwait syz-executor 44170 504855 98522 0 2 0 syz-executor 44170 479197 98522 0 3 0x4000080 fsleep syz-executor 53503 54489 63978 0 3 0x1000080 nanoslp syz-executor 53503 45755 63978 0 3 0x5000080 sbwait syz-executor 53503 98219 63978 0 3 0x5000080 fsleep syz-executor 53503 214895 63978 0 3 0x5000080 fsleep syz-executor 99520 175638 75176 0 2 0 syz-executor 99520 226722 75176 0 3 0x4000080 pipewr syz-executor *99520 156758 75176 0 7 0x4000000 syz-executor 32532 334208 66933 0 3 0x80 nanoslp syz-executor 32532 518288 66933 0 7 0x4000000 syz-executor 35254 423027 34736 0 2 0xc80 syz-executor 35254 145608 34736 0 3 0x4000080 pipewr syz-executor 35254 440412 34736 0 3 0x4000080 fsleep syz-executor 7109 369109 0 0 3 0x14200 acct acct 35422 108264 92657 0 3 0x80 nanoslp syz-executor 35422 263091 92657 0 3 0x4000080 sbwait syz-executor 35422 498925 92657 0 3 0x4000080 fsleep syz-executor 62329 163493 0 0 3 0x14200 bored sosplice 98522 284233 30005 0 2 0xc82 syz-executor 34736 494146 30005 0 3 0x82 nanoslp syz-executor 66933 152125 30005 0 3 0x82 nanoslp syz-executor 92657 341770 30005 0 3 0x82 nanoslp syz-executor 71202 421424 30005 0 3 0x82 wait syz-executor 75176 137783 30005 0 3 0x82 nanoslp syz-executor 63978 129299 30005 0 2 0xc82 syz-executor 40850 481550 30005 0 3 0x82 nanoslp syz-executor 30005 91738 23111 0 3 0x82 kqread syz-executor 23111 293329 47215 0 3 0x10008a sigsusp ksh 47215 230193 17396 0 3 0x98 kqread sshd-session 17396 407460 68388 0 3 0x92 kqread sshd-session 23819 270543 1 0 3 0x100083 ttyin getty 68388 140206 1 0 3 0x88 kqread sshd 96074 404320 62434 74 3 0x1100092 bpf pflogd 62434 208012 1 0 3 0x80 sbwait pflogd 38837 291741 42801 73 3 0x1100090 kqread syslogd 42801 155891 1 0 3 0x100082 sbwait syslogd 28704 472373 1 0 3 0x100080 kqread resolvd 88707 133570 29916 77 3 0x100092 kqread dhcpleased 74355 19472 29916 77 3 0x100092 kqread dhcpleased 29916 431884 1 0 3 0x80 kqread dhcpleased 90303 190749 0 0 3 0x14200 bored smr 55560 346454 0 0 3 0x14200 pgzero zerothread 63399 357358 0 0 3 0x14200 aiodoned aiodoned 30352 283524 0 0 3 0x14200 syncer update 688 461989 0 0 3 0x14200 cleaner cleaner 24165 384724 0 0 3 0x14200 reaper reaper 42084 311582 0 0 3 0x14200 pgdaemon pagedaemon 35139 19734 0 0 3 0x14200 bored viomb 92039 248082 0 0 3 0x40014200 acpi0 acpi0 97662 447834 0 0 3 0x40014200 idle1 7299 476813 0 0 3 0x14200 bored softnet3 87991 184809 0 0 3 0x14200 bored softnet2 24274 90083 0 0 3 0x14200 bored softnet1 22249 125668 0 0 3 0x14200 bored softnet0 86908 364799 0 0 3 0x14200 bored systqmp 9644 165735 0 0 3 0x14200 bored systq 20567 475026 0 0 3 0x14200 tmoslp softclockmp 95527 478164 0 0 3 0x40014200 tmoslp softclock 50834 304124 0 0 3 0x40014200 idle0 1 205634 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 99520 (syz-executor) thread 0xffff80003c4227e0 (156758) exclusive rwlock netlock r = 0 (0xffffffff8384a4a0) #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+0x377 sys/kern/kern_rwlock.c:310 #2 rtm_output+0x78c sys/net/rtsock.c:969 #3 route_output+0x9a1 sys/net/rtsock.c:878 #4 route_send+0xd7 sys/net/rtsock.c:342 #5 sosend+0x804 sys/kern/uipc_socket.c:-1 #6 sendit+0x721 sys/kern/uipc_syscalls.c:779 #7 sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800010fdd8b0) #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+0x377 sys/kern/kern_rwlock.c:310 #2 sblock+0xb7 sys/kern/uipc_socket2.c:536 #3 sosend+0x2e2 sys/kern/uipc_socket.c:630 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10209 11043K 11420K 166960K 11651 0 pcb 17 12K 12K 166960K 42 0 rtable 188 7K 7K 166960K 382 0 pf 34 17K 18K 166960K 67 0 ifaddr 35 5K 7K 166960K 55 0 ifgroup 55 2K 2K 166960K 78 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 100 0 ioctlops 0 0K 4K 166960K 1507 0 iov 0 0K 16K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1345 85K 85K 166960K 1482 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 8 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 248K 166960K 299 0 sigio 0 0K 0K 166960K 2 0 proc 72 91K 140K 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 27 0 in_multi 67 5K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 3 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 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 388 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 255 168K 186K 166960K 4265 0 UVM aobj 75 3K 3K 166960K 78 0 pinsyscall 43 86K 108K 166960K 1409 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 12 0 NDP 12 0K 2K 166960K 36 0 temp 37 8682K 8747K 166960K 12664 0 kqueue 15 24K 28K 166960K 54 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 45 0 41 1 0 1 1 0 8 0 rtentry 176 115 0 33 6 0 6 6 0 8 0 unpcb 144 110 0 87 2 0 2 2 0 8 1 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 90 0 83 4 0 4 4 0 8 3 arp 128 19 0 5 1 0 1 1 0 8 0 inpcb 328 219 0 207 4 0 4 4 0 8 2 nd6 144 24 0 9 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 13 0 13 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 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 pfstitem 24 22 0 2 1 0 1 1 0 8 0 pfstkey 128 22 0 2 1 0 1 1 0 8 0 pfstate 384 22 0 2 2 0 2 2 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 256 454 0 130 29 0 29 29 0 8 5 art_table 32 455 0 130 4 0 4 4 0 8 0 art_node 16 114 0 40 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semapl 112 7 0 1 1 0 1 1 0 8 0 shmpl 112 75 0 3 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1827 0 316 95 0 95 95 0 8 0 ffsino 288 1827 0 316 109 0 109 109 0 8 0 nchpl 144 2245 0 555 63 0 63 63 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 1991 0 0 41 0 41 41 0 8 0 vnodes 216 1991 0 0 111 0 111 111 0 8 0 namei 1024 7228 0 7228 3 1 2 2 0 8 2 percpumem 16 65 0 16 1 0 1 1 0 8 0 kstatmem 264 44 0 16 3 0 3 3 0 8 1 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7493 0 7493 11 8 3 8 1 8 3 plimitpl 152 44 0 26 1 0 1 1 0 8 0 sigapl 424 598 0 546 8 1 7 7 0 8 1 knotepl 120 381 0 0 12 0 12 12 0 8 0 kqueuepl 224 62 0 51 2 0 2 2 0 8 1 pipepl 336 115 0 86 4 1 3 3 0 8 0 fdescpl 520 578 0 546 3 0 3 3 0 8 0 filepl 160 2655 0 2415 13 0 13 13 0 8 2 lockfpl 104 78 0 76 1 0 1 1 0 8 0 lockfspl 48 26 0 24 1 0 1 1 0 8 0 sessionpl 144 25 0 16 1 0 1 1 0 8 0 pgrppl 48 34 0 17 1 0 1 1 0 8 0 ucredpl 104 265 0 252 1 0 1 1 0 8 0 zombiepl 144 547 0 546 2 1 1 1 0 8 0 processpl 1240 598 0 546 5 0 5 5 0 8 0 procpl 656 861 0 797 7 1 6 6 0 8 0 srpgc 96 4 0 4 1 0 1 1 0 8 1 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 728 383 0 344 7 1 6 6 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 106 0 0 14 0 14 14 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 200 0 0 13 0 13 13 0 8 0 bufpl 280 2753 0 122 188 0 188 188 0 8 0 anonpl 32 5493 0 0 45 1 44 44 0 246 0 amapchunkpl 152 12786 0 12243 27 1 26 26 0 158 5 amappl16 200 2254 0 2224 6 3 3 5 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 120 0 108 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 1235 0 1203 3 1 2 2 0 8 0 amappl11 160 93 0 79 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 244 0 244 2 2 0 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 113 0 101 1 0 1 1 0 8 0 amappl6 120 187 0 184 2 1 1 1 0 8 0 amappl5 112 123 0 114 1 0 1 1 0 8 0 amappl4 104 352 0 335 1 0 1 1 0 8 0 amappl3 96 2339 0 2216 5 1 4 4 0 8 0 amappl2 88 662 0 600 2 0 2 2 0 8 0 amappl1 80 9658 0 9048 17 1 16 16 0 8 0 amappl 88 3535 0 3354 5 0 5 5 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 128 254 0 254 2 1 1 1 0 8 1 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 77 0 3 2 0 2 2 0 8 0 uaddrrnd 24 578 0 546 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 578 0 546 1 0 1 1 0 8 0 vmmpekpl 168 6663 0 6622 2 0 2 2 0 8 0 vmmpepl 168 44206 0 42161 98 2 96 96 0 357 4 vmsppl 480 577 0 546 5 0 5 5 0 8 1 rwobjpl 72 17063 0 14048 55 0 55 55 0 8 0 pdppl 4096 1163 0 1092 105 34 71 85 0 8 0 pvpl 32 11874 0 0 96 0 96 96 0 265 0 pmappl 256 577 0 546 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 392 0 38 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace arp_rtrequest(ffff800000039058,1,fffffd805c07f5a8) at arp_rtrequest+0x66f arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800000039058,1,fffffd805c07f5a8) at arp_rtrequest+0x66f sys/netinet/if_ether.c:184 rtrequest(1,ffff800030fd22b0,0,ffff800030fd2230,0) at rtrequest+0xc5c sys/net/route.c:1117 rtm_output(ffff800001498c00,ffff800030fd2358,ffff800030fd22b0,0,0) at rtm_output+0x876 sys/net/rtsock.c:973 route_output(fffffd805eae2900,ffff800010fdd6d8) at route_output+0x9a1 sys/net/rtsock.c:878 route_send(ffff800010fdd6d8,fffffd805eae2900,0,0) at route_send+0xd7 sys/net/rtsock.c:342 sosend(ffff800010fdd6d8,0,ffff800030fd24f8,0,0,802) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c4227e0,6,ffff800030fd25f0,802,ffff800030fd26a0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80003c4227e0,ffff800030fd2750,ffff800030fd26a0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff800030fd2750) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800030fd2750) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9a7b48758a0, count: -10 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 __mp_lock(ffffffff838c9080) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838c9080) at __mp_lock+0x192 sys/kern/kern_lock.c:162 __mp_acquire_count(ffffffff838c9080,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 tsleep_nsec(ffff800001423c00,119,ffffffff833472f3,989680) at tsleep_nsec+0x238 sys/kern/kern_synch.c:-1 ptcwrite(601,ffff80003c429c80,1) at ptcwrite+0x34e sys/kern/tty_pty.c:567 spec_write(ffff80003c429a60) at spec_write+0x120 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd806e1728d0,ffff80003c429c80,1,fffffd80097fb270) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd805e9c8880,ffff80003c429c80,0) at vn_write+0x1d4 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80003c422a70,5,ffff80003c429c80,0,ffff80003c429d40) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff80003c422a70,ffff80003c429df0,ffff80003c429d40) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80003c429df0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429df0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5142cb93170, count: 1 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 __mp_lock(ffffffff838c9080) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:131 [inline] __mp_lock(ffffffff838c9080) at __mp_lock+0x192 sys/kern/kern_lock.c:162 __mp_acquire_count(ffffffff838c9080,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 tsleep_nsec(ffff800001423c00,119,ffffffff833472f3,989680) at tsleep_nsec+0x238 sys/kern/kern_synch.c:-1 ptcwrite(601,ffff80003c429c80,1) at ptcwrite+0x34e sys/kern/tty_pty.c:567 spec_write(ffff80003c429a60) at spec_write+0x120 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd806e1728d0,ffff80003c429c80,1,fffffd80097fb270) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd805e9c8880,ffff80003c429c80,0) at vn_write+0x1d4 sys/kern/vfs_vnops.c:408 dofilewritev(ffff80003c422a70,5,ffff80003c429c80,0,ffff80003c429d40) at dofilewritev+0x23c sys/kern/sys_generic.c:380 sys_writev(ffff80003c422a70,ffff80003c429df0,ffff80003c429d40) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80003c429df0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c429df0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5142cb93170, count: -14