uvm_fault(0xfffffd806c286540, 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 *223308 38903 32767 0x10 0x4000000 0K syz-executor 256813 10778 32767 0x10 0x4000000 1 syz-executor fifo_write(ffff8000361af2e0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8069f6fbf8,ffff8000361af378,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8069f6fbf8,ffff800029fe6c00,f8,0,1,a79dc251ea418c63,ffff8000361af4a0,fffffd8069f6fbf8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000361af4a0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd806791c6f0,ffff8000361af620,ffff8000361af650,ffff8000361af550,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800033f9ccc8,200003c0,ffffff9c,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff8000361af7d0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000361af7d0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa19fefff190, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806c286540, 0x8, 0, 1) -> e ddb{0}> trace fifo_write(ffff8000361af2e0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8069f6fbf8,ffff8000361af378,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8069f6fbf8,ffff800029fe6c00,f8,0,1,a79dc251ea418c63,ffff8000361af4a0,fffffd8069f6fbf8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000361af4a0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd806791c6f0,ffff8000361af620,ffff8000361af650,ffff8000361af550,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800033f9ccc8,200003c0,ffffff9c,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff8000361af7d0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000361af7d0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa19fefff190, count: -8 ddb{0}> show registers rdi 0xfffffd8069f6fbf8 rsi 0x392c __ALIGN_SIZE+0x292c rbp 0xffff8000361af2d0 rbx 0xfffffd8069f6fbf8 rdx 0xffff80002a161000 rcx 0x392b __ALIGN_SIZE+0x292b rax 0 r8 0 r9 0x1 r10 0xffffffff8345fff0 cpu_info_full_primary+0x1ff0 r11 0x80db6894445bf1c0 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff8000361af378 r14 0xffff8000361af2e0 r15 0x1 rip 0xffffffff82ccd08e fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000361af2a0 ss 0 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{0}> show proc PROC (syz-executor) tid=223308 pid=38903 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=59, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800033f9c2a8,0xffff800033f9ca50 process=0xffff800030776d68 user=0xffff8000361aa000, vmspace=0xfffffd806c286540 estcpu=9, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 38903 438148 65892 32767 2 0x10 syz-executor *38903 223308 65892 32767 7 0x4000010 syz-executor 10778 491951 40842 32767 2 0x10 syz-executor 10778 256813 40842 32767 7 0x4000010 syz-executor 27868 305198 48026 32767 3 0x90 nanoslp syz-executor 27868 409888 48026 32767 3 0x4000090 piperd syz-executor 27868 507486 48026 32767 3 0x4000090 fsleep syz-executor 27868 393808 48026 32767 3 0x4000090 fsleep syz-executor 51089 383431 61282 32767 3 0x90 nanoslp syz-executor 51089 152788 61282 32767 3 0x4000090 kqread syz-executor 51089 22067 61282 32767 3 0x4000090 fsleep syz-executor 97347 245216 0 0 3 0x14200 bored sosplice 35855 522652 12431 32767 3 0x90 nanoslp syz-executor 35855 222997 12431 32767 3 0x4000090 fsleep syz-executor 35855 499766 12431 32767 3 0x4000090 pipewr syz-executor 35855 260221 12431 32767 3 0x4000090 fsleep syz-executor 48026 43469 60250 32767 3 0x90 nanoslp syz-executor 61282 204910 19529 32767 2 0x490 syz-executor 70366 476117 25120 32767 2 0x10 syz-executor 40842 206926 2648 32767 2 0x490 syz-executor 12431 48137 49232 32767 3 0x90 nanoslp syz-executor 91765 333533 24929 32767 2 0x10 syz-executor 65892 101438 65399 32767 2 0x490 syz-executor 81143 168543 48905 32767 2 0x490 syz-executor 25120 149543 23371 0 3 0x82 wait syz-executor 19529 99319 23371 0 3 0x82 wait syz-executor 60250 81935 23371 0 3 0x82 wait syz-executor 2648 407001 23371 0 3 0x82 wait syz-executor 48905 177746 23371 0 3 0x82 wait syz-executor 24929 160571 23371 0 3 0x82 wait syz-executor 49232 167311 23371 0 3 0x82 wait syz-executor 65399 458533 23371 0 3 0x82 wait syz-executor 23371 284738 13579 0 3 0x82 kqread syz-executor 13579 425256 94633 0 3 0x10008a sigsusp ksh 94633 428866 87115 0 3 0x98 kqread sshd-session 87115 435761 42598 0 3 0x92 kqread sshd-session 47260 64662 1 0 3 0x100083 ttyin getty 42598 342431 1 0 3 0x88 kqread sshd 16878 211063 29242 73 3 0x1100090 kqread syslogd 29242 326108 1 0 3 0x100082 sbwait syslogd 15791 302388 1 0 3 0x100080 kqread resolvd 45074 64898 32401 77 3 0x100092 kqread dhcpleased 66179 211494 32401 77 3 0x100092 kqread dhcpleased 32401 152467 1 0 3 0x80 kqread dhcpleased 83767 515094 0 0 3 0x14200 bored smr 71300 284926 0 0 2 0x14200 zerothread 23024 218885 0 0 3 0x14200 aiodoned aiodoned 39214 82028 0 0 3 0x14200 syncer update 85142 131791 0 0 3 0x14200 cleaner cleaner 8014 420427 0 0 3 0x14200 reaper reaper 51479 325037 0 0 3 0x14200 pgdaemon pagedaemon 74309 332918 0 0 3 0x14200 bored viomb 20244 334618 0 0 3 0x40014200 acpi0 acpi0 14950 410074 0 0 3 0x40014200 idle1 28145 394978 0 0 3 0x14200 bored softnet3 63946 15630 0 0 3 0x14200 bored softnet2 96457 82968 0 0 3 0x14200 bored softnet1 40830 280638 0 0 2 0x14200 softnet0 63891 63570 0 0 3 0x14200 bored systqmp 6505 162962 0 0 3 0x14200 bored systq 61820 60574 0 0 3 0x14200 tmoslp softclockmp 112 249793 0 0 3 0x40014200 tmoslp softclock 15025 296394 0 0 3 0x40014200 idle0 1 443145 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 38903 (syz-executor) thread 0xffff800033f9ccc8 (223308) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835eca00) #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 VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646 #7 ufs_direnter+0x7d1 sys/ufs/ufs/ufs_lookup.c:833 #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 (0xfffffd806c63ea28) #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 70366 (syz-executor) thread 0xffff800033f9cf50 (476117) exclusive rrwlock inode r = 0 (0xfffffd806358b4e0) #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 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c63ee68) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #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 91765 (syz-executor) thread 0xffff8000ffff6018 (333533) exclusive rrwlock inode r = 0 (0xfffffd806c63e4d8) #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 (0xfffffd806c91a818) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10187 10024K 10035K 166960K 11265 0 pcb 17 12K 12K 166960K 17 0 rtable 236 6K 6K 166960K 347 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 30 0 iov 0 0K 4K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1364 86K 86K 166960K 1388 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 24 89K 121K 166960K 208 0 sigio 1 0K 0K 166960K 5 0 proc 56 78K 115K 166960K 476 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 18 0 in_multi 99 7K 7K 166960K 100 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 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 341 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 257 74K 75K 166960K 3256 0 UVM aobj 10 2K 2K 166960K 11 0 pinsyscall 45 90K 112K 166960K 1191 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 11 0K 2K 166960K 27 0 temp 41 6815K 6879K 166960K 3850 0 kqueue 15 24K 24K 166960K 31 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 37 0 34 1 0 1 1 0 8 0 rtentry 112 112 0 1 4 0 4 4 0 8 0 unpcb 144 77 0 59 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 44 0 39 2 0 2 2 0 8 0 arp 120 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 336 141 0 130 2 0 2 2 0 8 0 nd6 136 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 468 0 0 30 0 30 30 0 8 0 art_table 32 469 0 0 4 0 4 4 0 8 0 art_node 16 111 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semapl 112 2 0 0 1 0 1 1 0 8 0 shmpl 112 8 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1640 0 134 95 0 95 95 0 8 0 ffsino 272 1640 0 134 101 0 101 101 0 8 0 nchpl 144 1915 0 241 63 0 63 63 0 8 0 uvmvnodes 80 1753 0 0 36 0 36 36 0 8 0 vnodes 216 1753 0 0 98 0 98 98 0 8 0 namei 1024 5693 0 5691 2 0 2 2 0 8 1 percpumem 16 46 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 5584 0 5584 4 1 3 3 1 8 3 plimitpl 152 76 0 51 2 0 2 2 0 8 1 sigapl 424 479 0 424 7 0 7 7 0 8 0 futexpl 64 1121 0 1116 1 0 1 1 0 8 0 knotepl 120 94 0 0 3 0 3 3 0 8 0 kqueuepl 216 38 0 26 1 0 1 1 0 8 0 pipepl 320 107 0 78 3 0 3 3 0 8 0 fdescpl 496 460 0 424 7 1 6 6 0 8 0 filepl 152 1743 0 1487 11 0 11 11 0 8 0 lockfpl 104 34 0 32 1 0 1 1 0 8 0 lockfspl 48 11 0 9 1 0 1 1 0 8 0 sessionpl 144 21 0 5 1 0 1 1 0 8 0 pgrppl 48 31 0 7 1 0 1 1 0 8 0 ucredpl 104 165 0 146 1 0 1 1 0 8 0 zombiepl 144 425 0 424 1 0 1 1 0 8 0 processpl 1160 479 0 424 5 0 5 5 0 8 0 procpl 648 605 0 540 7 0 7 7 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 664 256 0 224 4 0 4 4 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 258 0 0 33 0 33 33 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 284 0 0 18 0 18 18 0 8 0 bufpl 280 2294 0 89 158 0 158 158 0 8 0 anonpl 24 142715 0 139394 24 0 24 24 0 185 1 amapchunkpl 152 10657 0 10074 27 0 27 27 0 158 1 amappl16 200 3796 0 3779 5 0 5 5 0 8 4 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 100 0 90 1 0 1 1 0 8 0 amappl13 176 12 0 12 1 0 1 1 0 8 1 amappl12 168 1065 0 1028 3 0 3 3 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 0 1 1 0 8 1 amappl9 144 164 0 164 1 0 1 1 0 8 1 amappl8 136 44 0 43 1 0 1 1 0 8 0 amappl7 128 124 0 114 1 0 1 1 0 8 0 amappl6 120 181 0 180 1 0 1 1 0 8 0 amappl5 112 125 0 117 1 0 1 1 0 8 0 amappl4 104 296 0 281 1 0 1 1 0 8 0 amappl3 96 2045 0 1933 4 0 4 4 0 8 0 amappl2 88 664 0 583 3 0 3 3 0 8 0 amappl1 80 7534 0 6984 14 0 14 14 0 8 0 amappl 88 2930 0 2727 6 0 6 6 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 10 0 1 1 0 1 1 0 8 0 uaddrrnd 24 460 0 424 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 460 0 424 1 0 1 1 0 8 0 vmmpekpl 168 5675 0 5627 3 0 3 3 0 8 0 vmmpepl 168 37093 0 35103 93 0 93 93 0 357 1 vmsppl 440 459 0 424 5 0 5 5 0 8 0 rwobjpl 56 16397 0 13770 38 0 38 38 0 8 0 pdppl 4096 927 0 848 109 24 85 95 0 8 6 pvpl 32 11040 0 0 90 0 90 90 0 265 0 pmappl 248 459 0 424 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 403 0 26 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace fifo_write(ffff8000361af2e0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8069f6fbf8,ffff8000361af378,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8069f6fbf8,ffff800029fe6c00,f8,0,1,a79dc251ea418c63,ffff8000361af4a0,fffffd8069f6fbf8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff8000361af4a0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd806791c6f0,ffff8000361af620,ffff8000361af650,ffff8000361af550,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800033f9ccc8,200003c0,ffffff9c,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff8000361af7d0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000361af7d0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa19fefff190, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) 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(ffffffff835ec7f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835ec7f8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 vn_kqfilter(fffffd80678eebe0,fffffd806d0f8a58) at vn_kqfilter+0x35 sys/kern/vfs_vnops.c:620 kqueue_register(fffffd806ed446c0,ffff80003721ac90,0,ffff800033f9ca40) at kqueue_register+0xdb1 filter_attach sys/kern/kern_event.c:866 [inline] kqueue_register(fffffd806ed446c0,ffff80003721ac90,0,ffff800033f9ca40) at kqueue_register+0xdb1 sys/kern/kern_event.c:1348 pselregister(ffff800033f9ca40,ffff80003721af40,0,40,ffff80003721afc4,0) at pselregister+0x135 sys/kern/sys_generic.c:763 dopselect(ffff800033f9ca40,40,20000000,0,0,0,7abc0d471e4f880b,ffff800033f9ca40) at dopselect+0x503 sys/kern/sys_generic.c:656 sys_select(ffff800033f9ca40,ffff80003721b1c0,ffff80003721b110) at sys_select+0x1e7 sys/kern/sys_generic.c:555 syscall(ffff80003721b1c0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003721b1c0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5af85c035f0, count: 4 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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(ffffffff835ec7f8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835ec7f8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 vn_kqfilter(fffffd80678eebe0,fffffd806d0f8a58) at vn_kqfilter+0x35 sys/kern/vfs_vnops.c:620 kqueue_register(fffffd806ed446c0,ffff80003721ac90,0,ffff800033f9ca40) at kqueue_register+0xdb1 filter_attach sys/kern/kern_event.c:866 [inline] kqueue_register(fffffd806ed446c0,ffff80003721ac90,0,ffff800033f9ca40) at kqueue_register+0xdb1 sys/kern/kern_event.c:1348 pselregister(ffff800033f9ca40,ffff80003721af40,0,40,ffff80003721afc4,0) at pselregister+0x135 sys/kern/sys_generic.c:763 dopselect(ffff800033f9ca40,40,20000000,0,0,0,7abc0d471e4f880b,ffff800033f9ca40) at dopselect+0x503 sys/kern/sys_generic.c:656 sys_select(ffff800033f9ca40,ffff80003721b1c0,ffff80003721b110) at sys_select+0x1e7 sys/kern/sys_generic.c:555 syscall(ffff80003721b1c0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003721b1c0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5af85c035f0, count: -11