uvm_fault(0xfffffd806c0e9000, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 TID PID UID PRFLAGS PFLAGS CPU COMMAND *492278 66858 32767 0x10 0x4000000 1 syz-executor 481756 62629 32767 0x10 0 0 syz-executor fifo_write(ffff80002a9425e0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd806bcfddc0,ffff80002a942678,8,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd806bcfddc0,ffff80002a042000,fe,0,1,6a22ed20e9ea0c71,ffff80002a9427a0,fffffd806bcfddc0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a9427a0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80669048c0,ffff80002a942920,ffff80002a942950,ffff80002a942850,ffff80002a042000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000ffff67b0,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a942ad0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a942ad0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xad31503a0a0, 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(0xfffffd806c0e9000, 0x8, 0, 1) -> e ddb{1}> trace fifo_write(ffff80002a9425e0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd806bcfddc0,ffff80002a942678,8,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd806bcfddc0,ffff80002a042000,fe,0,1,6a22ed20e9ea0c71,ffff80002a9427a0,fffffd806bcfddc0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a9427a0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80669048c0,ffff80002a942920,ffff80002a942950,ffff80002a942850,ffff80002a042000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000ffff67b0,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a942ad0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a942ad0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xad31503a0a0, count: -8 ddb{1}> show registers rdi 0xfffffd806bcfddc0 rsi 0x223b __ALIGN_SIZE+0x123b rbp 0xffff80002a9425d0 rbx 0xfffffd806bcfddc0 rdx 0xffff800034264000 rcx 0x223a __ALIGN_SIZE+0x123a rax 0 r8 0 r9 0x1 r10 0xffff800029b7bff0 r11 0x185dae72eb9e1084 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a942678 r14 0xffff80002a9425e0 r15 0x1 rip 0xffffffff82dba94e fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a9425a0 ss 0 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{1}> show proc PROC (syz-executor) tid=492278 pid=66858 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff62a0,0xffff8000ffff71e0 process=0xffff8000371db1d8 user=0xffff80002a93d000, vmspace=0xfffffd806c0e9000 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 18833 155275 82181 32767 2 0x10 syz-executor 41016 17352 66396 32767 2 0x10 syz-executor 41016 91755 66396 32767 3 0x4000090 fsleep syz-executor 66858 197823 5611 32767 2 0x10 syz-executor *66858 492278 5611 32767 7 0x4000010 syz-executor 35836 352391 94061 32767 3 0x90 nanoslp syz-executor 35836 15672 94061 32767 3 0x4000090 kqsel syz-executor 35836 418850 94061 32767 3 0x4000090 fsleep syz-executor 14301 397005 96273 32767 3 0x90 nanoslp syz-executor 14301 54880 96273 32767 3 0x4000090 fifor syz-executor 14301 317818 96273 32767 3 0x4000090 fsleep syz-executor 15012 469845 56799 32767 3 0x90 nanoslp syz-executor 15012 511905 56799 32767 3 0x4000090 kqsel syz-executor 15012 383108 56799 32767 3 0x4000090 fsleep syz-executor 94061 1354 42660 32767 3 0x90 nanoslp syz-executor 56799 505414 95795 32767 3 0x90 nanoslp syz-executor 95795 25229 89510 0 3 0x82 wait syz-executor 62629 481756 41520 32767 7 0x10 syz-executor 5611 372548 22530 32767 3 0x90 nanoslp syz-executor 96273 511737 79528 32767 3 0x90 nanoslp syz-executor 82181 304103 13093 32767 3 0x90 nanoslp syz-executor 7210 415507 14468 32767 2 0x10 syz-executor 66396 278565 82612 32767 3 0x90 nanoslp syz-executor 41520 96533 89510 0 3 0x82 wait syz-executor 22530 455974 89510 0 3 0x82 wait syz-executor 42660 238624 89510 0 3 0x82 wait syz-executor 79528 82913 89510 0 3 0x82 wait syz-executor 13093 198026 89510 0 3 0x82 wait syz-executor 14468 453488 89510 0 3 0x82 wait syz-executor 82612 103897 89510 0 3 0x82 wait syz-executor 95125 339868 0 0 3 0x14200 bored sosplice 89510 352025 65133 0 2 0x2 syz-executor 65133 397693 62638 0 3 0x10008a sigsusp ksh 62638 479312 80481 0 3 0x98 kqread sshd-session 80481 309272 84221 0 3 0x92 kqread sshd-session 33544 365173 1 0 3 0x100083 ttyin getty 84221 251417 1 0 3 0x88 kqread sshd 62643 121006 89793 73 3 0x1100090 kqread syslogd 89793 434841 1 0 3 0x100082 sbwait syslogd 85889 503486 1 0 3 0x100080 kqread resolvd 55714 327257 55249 77 3 0x100092 kqread dhcpleased 93318 138308 55249 77 3 0x100092 kqread dhcpleased 55249 318310 1 0 3 0x80 kqread dhcpleased 56734 417249 0 0 3 0x14200 bored smr 11845 394401 0 0 2 0x14200 zerothread 52647 113213 0 0 3 0x14200 aiodoned aiodoned 22459 146606 0 0 3 0x14200 syncer update 1905 389967 0 0 3 0x14200 cleaner cleaner 64360 260176 0 0 3 0x14200 reaper reaper 32633 523814 0 0 3 0x14200 pgdaemon pagedaemon 99780 209938 0 0 3 0x14200 bored viomb 81439 184060 0 0 3 0x40014200 acpi0 acpi0 36054 350856 0 0 3 0x40014200 idle1 96224 398026 0 0 3 0x14200 bored softnet3 73745 124617 0 0 3 0x14200 bored softnet2 59737 444291 0 0 3 0x14200 bored softnet1 6627 416898 0 0 2 0x14200 softnet0 27992 194100 0 0 3 0x14200 bored systqmp 31279 69178 0 0 3 0x14200 bored systq 73345 91475 0 0 3 0x14200 tmoslp softclockmp 39052 307129 0 0 3 0x40014200 tmoslp softclock 91003 67927 0 0 3 0x40014200 idle0 1 118354 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &sched_lock r = 0 (0xffffffff83545390) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 wakeup_n+0x54 sys/kern/kern_synch.c:539 #4 task_add+0x167 sys/kern/kern_task.c:374 #5 if_enqueue_ifq+0xef sys/net/if.c:773 #6 ether_output+0x101 sys/net/if_ethersubr.c:375 #7 if_output_tso+0x216 #8 ip_output+0x133e sys/netinet/ip_output.c:441 #9 tcp_output+0x32e7 sys/netinet/tcp_output.c:1090 #10 tcp_send+0x163 sys/netinet/tcp_usrreq.c:841 #11 sosend+0xa40 #12 dofilewritev+0x23c sys/kern/sys_generic.c:380 #13 sys_write+0xa2 sys/kern/sys_generic.c:300 #14 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #14 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 66858 (syz-executor) thread 0xffff8000ffff67b0 (492278) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8353f718) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 #7 ufs_direnter+0x721 sys/ufs/ufs/ufs_lookup.c:726 #8 ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1764 #9 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #10 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #11 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80597cb3c8) #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 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728 #10 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #11 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #12 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 62629 (syz-executor) thread 0xffff8000323aaa50 (481756) exclusive rrwlock inode r = 0 (0xfffffd80597cbe68) #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 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c216928) #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 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 89510 (syz-executor) thread 0xffff800029fd8290 (352025) exclusive rwlock netlock r = 0 (0xffffffff834effd0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 sosend+0x7e3 sb_mtx_lock sys/sys/socketvar.h:218 [inline] #1 sosend+0x7e3 sys/kern/uipc_socket.c:743 #2 dofilewritev+0x23c sys/kern/sys_generic.c:380 #3 sys_write+0xa2 sys/kern/sys_generic.c:300 #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 exclusive rwlock sbufsnd r = 0 (0xffff800010fdd910) #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 sosend+0x2ff sys/kern/uipc_socket.c:681 #4 dofilewritev+0x23c sys/kern/sys_generic.c:380 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #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 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10207 10026K 10036K 166960K 11530 0 pcb 17 12K 12K 166960K 17 0 rtable 212 6K 7K 166960K 2781 0 pf 29 16K 16K 166960K 193 0 ifaddr 38 7K 8K 166960K 367 0 ifgroup 46 2K 2K 166960K 372 0 sysctl 2 0K 1K 166960K 4 0 counters 62 36K 36K 166960K 224 0 ioctlops 0 0K 2K 166960K 132 0 iov 0 0K 16K 166960K 143 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1468 92K 92K 166960K 3039 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 28 0 dirhash 15 2K 3K 166960K 39 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 24 89K 181K 166960K 2475 0 sigio 0 0K 0K 166960K 25 0 proc 59 91K 188K 166960K 2827 0 subproc 104 6K 13K 166960K 1573 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 577 0 in_multi 88 6K 8K 166960K 1037 0 ether_multi 1 0K 0K 166960K 11 0 mrt 2 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 1495 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 236 73K 140K 166960K 18604 0 UVM aobj 44 6K 6K 166960K 45 0 pinsyscall 45 90K 140K 166960K 5552 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 90 0 NDP 10 0K 2K 166960K 265 0 temp 76 6824K 6888K 166960K 19040 0 kqueue 14 22K 28K 166960K 202 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 120 263 0 260 1 0 1 1 0 8 0 rtentry 112 993 0 894 4 1 3 4 0 8 0 unpcb 144 1489 0 1472 12 10 2 4 0 8 0 syncache 336 15 0 15 6 6 0 1 0 8 0 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 808 764 0 756 29 21 8 8 0 8 7 arp 120 179 0 163 1 0 1 1 0 8 0 ipq 40 8 0 2 1 0 1 1 0 8 0 ipqe 40 76 0 69 1 0 1 1 0 8 0 inpcb 336 1937 0 1920 32 25 7 10 0 8 5 nd6 136 271 0 250 1 0 1 1 0 8 0 kcovpl 48 121 0 113 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4024 0 3613 65 39 26 31 0 8 0 art_table 32 4025 0 3613 4 0 4 4 0 8 0 art_node 16 992 0 902 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 27 3 2 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 25 0 15 1 0 1 1 0 8 0 shmpl 112 42 0 1 2 0 2 2 0 8 0 dirhash 1024 35 0 16 3 0 3 3 0 8 0 dino2pl 256 3291 0 1569 108 0 108 108 0 8 0 ffsino 272 3291 0 1569 115 0 115 115 0 8 0 nchpl 144 4828 0 2988 69 0 69 69 0 8 0 uvmvnodes 80 4873 0 0 100 0 100 100 0 8 0 vnodes 216 4873 0 0 271 0 271 271 0 8 0 namei 1024 24544 0 24543 14 12 2 2 0 8 1 percpumem 16 126 0 81 1 0 1 1 0 8 0 kstatmem 264 182 0 162 2 0 2 2 0 8 0 scxspl 216 49599 0 49599 17 16 1 8 1 8 1 plimitpl 152 559 0 534 3 1 2 2 0 8 0 sigapl 424 2532 0 2477 12 4 8 9 0 8 0 futexpl 64 14843 0 14839 8 7 1 1 0 8 0 knotepl 120 429 0 0 10 0 10 10 0 8 0 kqueuepl 216 540 0 527 11 10 1 5 0 8 0 pipepl 320 726 0 699 9 5 4 5 0 8 0 fdescpl 496 2513 0 2477 10 3 7 8 0 8 0 filepl 152 13225 0 12974 25 12 13 17 0 8 0 lockfpl 104 278 0 276 1 0 1 1 0 8 0 lockfspl 48 100 0 98 1 0 1 1 0 8 0 sessionpl 144 100 0 84 1 0 1 1 0 8 0 pgrppl 48 231 0 207 1 0 1 1 0 8 0 ucredpl 104 2031 0 2012 1 0 1 1 0 8 0 zombiepl 144 2477 0 2477 1 0 1 1 0 8 1 processpl 1160 2532 0 2477 11 5 6 6 0 8 0 procpl 648 4216 0 4153 7 0 7 7 0 8 0 srpgc 96 4 0 4 2 2 0 1 0 8 0 sosppl 168 12 0 12 5 4 1 1 0 8 1 sockpl 664 3712 0 3675 45 36 9 14 0 8 5 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 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 2 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 268 0 0 30 0 30 30 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 434 0 0 20 0 20 20 0 8 0 bufpl 280 8558 0 1523 503 0 503 503 0 8 0 anonpl 24 382540 0 379224 80 21 59 71 0 185 19 amapchunkpl 152 58959 0 58449 49 14 35 40 0 158 9 amappl16 200 7571 0 7558 64 61 3 27 0 8 1 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 295 0 285 1 0 1 1 0 8 0 amappl13 176 9 0 9 2 2 0 1 0 8 0 amappl12 168 4419 0 4383 8 5 3 3 0 8 1 amappl11 160 61 0 51 1 0 1 1 0 8 0 amappl10 152 15 0 14 1 0 1 1 0 8 0 amappl9 144 131 0 131 1 1 0 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 255 0 245 1 0 1 1 0 8 0 amappl6 120 954 0 951 1 0 1 1 0 8 0 amappl5 112 443 0 434 1 0 1 1 0 8 0 amappl4 104 524 0 509 1 0 1 1 0 8 0 amappl3 96 10202 0 10104 6 2 4 4 0 8 0 amappl2 88 2891 0 2812 3 0 3 3 0 8 0 amappl1 80 19195 0 18667 13 0 13 13 0 8 0 amappl 88 17611 0 17428 9 3 6 7 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 128 253 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 44 0 1 1 0 1 1 0 8 0 uaddrrnd 24 2513 0 2477 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2513 0 2477 1 0 1 1 0 8 0 vmmpekpl 168 23125 0 23052 5 0 5 5 0 8 0 vmmpepl 168 157976 0 156039 141 40 101 122 0 357 9 vmsppl 440 2512 0 2477 7 1 6 7 0 8 0 rwobjpl 56 50483 0 44745 89 6 83 83 0 8 0 pdppl 4096 5033 0 4954 373 288 85 127 0 8 6 pvpl 32 30277 0 0 245 1 244 244 0 265 0 pmappl 248 2512 0 2477 9 5 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 802 0 393 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83487ff0) 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 __mp_lock(ffffffff8353f510) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8353f510) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800032bfbc20) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032bfbc20) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x754efdbc3820, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83487ff0) 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 __mp_lock(ffffffff8353f510) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8353f510) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800032bfbc20) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800032bfbc20) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x754efdbc3820, count: -6 ddb{0}> machine ddbcpu 1 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 fifo_write(ffff80002a9425e0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd806bcfddc0,ffff80002a942678,8,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd806bcfddc0,ffff80002a042000,fe,0,1,6a22ed20e9ea0c71,ffff80002a9427a0,fffffd806bcfddc0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a9427a0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80669048c0,ffff80002a942920,ffff80002a942950,ffff80002a942850,ffff80002a042000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000ffff67b0,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a942ad0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a942ad0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xad31503a0a0, count: 7 ddb{1}> trace fifo_write(ffff80002a9425e0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd806bcfddc0,ffff80002a942678,8,fffffd807f7d36e8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd806bcfddc0,ffff80002a042000,fe,0,1,6a22ed20e9ea0c71,ffff80002a9427a0,fffffd806bcfddc0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a9427a0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80669048c0,ffff80002a942920,ffff80002a942950,ffff80002a942850,ffff80002a042000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000ffff67b0,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a942ad0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a942ad0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xad31503a0a0, count: -8