uvm_fault(0xfffffd806c14a000, 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 286495 11144 32767 0x10 0 0 syz-executor * 43923 57086 32767 0x10 0x4000000 1K syz-executor fifo_write(ffff80002a12db50) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8079cc2050,ffff80002a12dbe8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8079cc2050,ffff80002a041400,fe,0,1,669eed74240b245,ffff80002a12dd10,fffffd8079cc2050,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a12dd10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8079cc2128,ffff80002a12de90,ffff80002a12dec0,ffff80002a12ddc0,ffff80002a041400) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800035ba96f0,20000700,7,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a12e040) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a12e040) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1827fad50f0, 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(0xfffffd806c14a000, 0x8, 0, 1) -> e ddb{1}> trace fifo_write(ffff80002a12db50) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8079cc2050,ffff80002a12dbe8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8079cc2050,ffff80002a041400,fe,0,1,669eed74240b245,ffff80002a12dd10,fffffd8079cc2050,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a12dd10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8079cc2128,ffff80002a12de90,ffff80002a12dec0,ffff80002a12ddc0,ffff80002a041400) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800035ba96f0,20000700,7,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a12e040) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a12e040) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1827fad50f0, count: -8 ddb{1}> show registers rdi 0xfffffd8079cc2050 rsi 0x2809 __ALIGN_SIZE+0x1809 rbp 0xffff80002a12db40 rbx 0xfffffd8079cc2050 rdx 0xffff80002db6d000 rcx 0x2808 __ALIGN_SIZE+0x1808 rax 0 r8 0 r9 0x1 r10 0xffff800029b7bff0 r11 0x89534a50281c1ecf r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a12dbe8 r14 0xffff80002a12db50 r15 0x1 rip 0xffffffff828dc39e fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a12db10 ss 0 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{1}> show proc PROC (syz-executor) tid=43923 pid=57086 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800035ba8f58,0xffff8000ffff71e0 process=0xffff800031575fd0 user=0xffff80002a129000, vmspace=0xfffffd806c14a000 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 11144 286495 55247 32767 7 0x10 syz-executor 3819 289823 92820 32767 2 0x10 syz-executor 3819 414568 92820 32767 3 0x4000090 fsleep syz-executor 57086 291954 23120 32767 2 0x10 syz-executor *57086 43923 23120 32767 7 0x4000010 syz-executor 43042 219311 97381 32767 2 0x10 syz-executor 43042 509009 97381 32767 3 0x4000090 kqread syz-executor 50082 236080 996 32767 3 0x10 biowait syz-executor 10650 23257 3600 32767 2 0x10 syz-executor 97381 297911 36767 32767 3 0x90 nanoslp syz-executor 92820 485591 52132 32767 3 0x90 nanoslp syz-executor 996 255605 7140 0 3 0x82 wait syz-executor 3600 365470 7140 0 3 0x82 wait syz-executor 52132 35583 7140 0 3 0x82 wait syz-executor 36767 362296 7140 0 3 0x82 wait syz-executor 71210 148988 7140 0 3 0x82 wait syz-executor 23120 360611 3631 32767 3 0x90 nanoslp syz-executor 3631 5126 7140 0 3 0x82 wait syz-executor 37766 241367 18234 0 3 0x100082 sbwait arp 18234 192544 60840 0 3 0x10008a sigsusp sh 55247 342866 56877 32767 3 0x90 nanoslp syz-executor 60840 252758 52291 0 3 0x80 wait syz-executor 56877 444919 7140 0 3 0x82 wait syz-executor 52291 410714 7140 0 3 0x82 wait syz-executor 7140 290024 43883 0 3 0x82 kqread syz-executor 43883 370339 60323 0 3 0x10008a sigsusp ksh 60323 62068 24276 0 3 0x98 kqread sshd-session 24276 294885 23053 0 3 0x92 kqread sshd-session 45168 307517 1 0 3 0x100083 ttyin getty 23053 516665 1 0 3 0x88 kqread sshd 39934 474245 13359 73 2 0x1100010 syslogd 13359 361236 1 0 3 0x100082 sbwait syslogd 42496 432241 1 0 3 0x100080 kqread resolvd 508 262748 51074 77 3 0x100092 kqread dhcpleased 93448 500095 51074 77 3 0x100092 kqread dhcpleased 51074 518867 1 0 3 0x80 kqread dhcpleased 95936 140865 0 0 3 0x14200 bored smr 20055 23492 0 0 3 0x14200 pgzero zerothread 46099 258468 0 0 3 0x14200 aiodoned aiodoned 9967 109482 0 0 3 0x14200 syncer update 27721 291685 0 0 3 0x14200 cleaner cleaner 51064 377774 0 0 3 0x14200 reaper reaper 62695 210429 0 0 3 0x14200 pgdaemon pagedaemon 36047 246689 0 0 3 0x14200 bored viomb 923 273465 0 0 3 0x40014200 acpi0 acpi0 39407 447296 0 0 3 0x40014200 idle1 42295 224544 0 0 3 0x14200 bored softnet3 82507 200068 0 0 3 0x14200 bored softnet2 96024 490150 0 0 3 0x14200 bored softnet1 20179 171323 0 0 3 0x14200 bored softnet0 84686 340851 0 0 3 0x14200 bored systqmp 22234 223538 0 0 3 0x14200 bored systq 18644 32508 0 0 3 0x14200 tmoslp softclockmp 99579 190140 0 0 3 0x40014200 tmoslp softclock 40192 171088 0 0 3 0x40014200 idle0 1 227484 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 11144 (syz-executor) thread 0xffff8000ffff62a0 (286495) exclusive rwlock vmmaplk r = 0 (0xfffffd806c8c5b50) #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 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252 #3 uvm_mapanon+0x292 #4 uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1019 #5 sys_mmap+0xa96 sys/uvm/uvm_mmap.c:421 #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 57086 (syz-executor) thread 0xffff800035ba96f0 (43923) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835e5af0) #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 (0xfffffd805a51c928) #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 50082 (syz-executor) thread 0xffff80003579d460 (236080) exclusive rrwlock inode r = 0 (0xfffffd805a51c4e8) #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:3101 #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 (0xfffffd80609442c0) #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:3086 #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 10650 (syz-executor) thread 0xffff800035ba8538 (23257) exclusive rrwlock inode r = 0 (0xfffffd805a51c0a8) #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 (0xfffffd80609445f0) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10180 10024K 10036K 166960K 11276 0 pcb 17 12K 12K 166960K 17 0 rtable 218 6K 6K 166960K 504 0 pf 31 16K 16K 166960K 43 0 ifaddr 40 7K 7K 166960K 68 0 ifgroup 50 2K 2K 166960K 74 0 sysctl 2 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 76 0 ioctlops 0 0K 2K 166960K 36 0 iov 0 0K 2K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1428 90K 90K 166960K 1475 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 24 89K 133K 166960K 277 0 sigio 0 0K 0K 166960K 3 0 proc 56 78K 152K 166960K 636 0 subproc 104 6K 10K 166960K 182 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 10 0 in_multi 89 6K 6K 166960K 159 0 ether_multi 1 0K 0K 166960K 3 0 mrt 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 408 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 229 74K 106K 166960K 3469 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 46 92K 116K 166960K 1407 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 5 0 NDP 23 1K 1K 166960K 43 0 temp 37 6814K 6878K 166960K 4491 0 kqueue 15 24K 24K 166960K 32 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 51 0 45 1 0 1 1 0 8 0 rtentry 112 169 0 67 3 0 3 3 0 8 0 unpcb 144 84 0 65 1 0 1 1 0 8 0 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 808 27 0 23 1 0 1 1 0 8 0 arp 120 29 0 12 1 0 1 1 0 8 0 inpcb 336 124 0 117 2 0 2 2 0 8 1 nd6 136 39 0 18 1 0 1 1 0 8 0 kcovpl 48 14 0 6 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 678 0 264 27 1 26 26 0 8 0 art_table 32 679 0 264 4 0 4 4 0 8 0 art_node 16 168 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1642 0 122 96 0 96 96 0 8 0 ffsino 272 1642 0 122 102 0 102 102 0 8 0 nchpl 144 1881 0 195 63 0 63 63 0 8 0 uvmvnodes 80 1833 0 0 38 0 38 38 0 8 0 vnodes 216 1833 0 0 102 0 102 102 0 8 0 namei 1024 6078 0 6076 4 2 2 2 0 8 1 percpumem 16 52 0 6 1 0 1 1 0 8 0 kstatmem 264 34 0 12 2 0 2 2 0 8 0 scxspl 216 7042 0 7041 3 2 1 2 1 8 0 plimitpl 152 60 0 35 2 0 2 2 0 8 0 sigapl 424 535 0 481 8 0 8 8 0 8 0 futexpl 64 749 0 748 1 0 1 1 0 8 0 knotepl 120 59 0 0 2 0 2 2 0 8 0 kqueuepl 216 101 0 90 5 0 5 5 0 8 4 pipepl 320 128 0 100 4 0 4 4 0 8 0 fdescpl 496 517 0 481 7 1 6 6 0 8 0 filepl 152 1890 0 1639 14 0 14 14 0 8 1 lockfpl 104 27 0 25 1 0 1 1 0 8 0 lockfspl 48 10 0 8 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 42 0 18 1 0 1 1 0 8 0 ucredpl 104 195 0 177 1 0 1 1 0 8 0 zombiepl 144 482 0 481 1 0 1 1 0 8 0 processpl 1160 535 0 481 5 0 5 5 0 8 0 procpl 648 613 0 556 6 0 6 6 0 8 0 sockpl 664 259 0 227 4 0 4 4 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 233 0 0 30 0 30 30 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 254 0 0 16 0 16 16 0 8 0 bufpl 280 4744 0 89 333 0 333 333 0 8 0 anonpl 24 170918 0 163613 51 0 51 51 0 185 5 amapchunkpl 152 11731 0 11252 32 0 32 32 0 158 8 amappl16 200 4697 0 4446 18 4 14 14 0 8 0 amappl15 192 30 0 30 1 1 0 1 0 8 0 amappl14 184 113 0 102 1 0 1 1 0 8 0 amappl13 176 26 0 26 1 1 0 1 0 8 0 amappl12 168 1201 0 1165 2 0 2 2 0 8 0 amappl11 160 55 0 45 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 124 0 124 1 1 0 1 0 8 0 amappl8 136 23 0 22 1 0 1 1 0 8 0 amappl7 128 115 0 104 1 0 1 1 0 8 0 amappl6 120 225 0 223 1 0 1 1 0 8 0 amappl5 112 163 0 155 1 0 1 1 0 8 0 amappl4 104 288 0 273 1 0 1 1 0 8 0 amappl3 96 2115 0 2026 3 0 3 3 0 8 0 amappl2 88 731 0 651 2 0 2 2 0 8 0 amappl1 80 8159 0 7579 15 1 14 15 0 8 0 amappl 88 3101 0 2932 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 128 253 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 517 0 481 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 517 0 481 1 0 1 1 0 8 0 vmmpekpl 168 6198 0 6130 4 0 4 4 0 8 0 vmmpepl 168 41330 0 39170 101 1 100 100 0 357 1 vmsppl 440 516 0 481 7 1 6 6 0 8 1 rwobjpl 56 18430 0 15494 43 1 42 42 0 8 0 pdppl 4096 1041 0 962 125 24 101 101 0 8 22 pvpl 32 27332 0 0 222 1 221 221 0 265 0 pmappl 248 516 0 481 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 414 0 30 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83426ff0) 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(ffffffff835e58e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003157d880,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80003157da50) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003157da50) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7759c5ebb230, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83426ff0) 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(ffffffff835e58e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003157d880,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835e58e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80003157da50) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003157da50) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7759c5ebb230, count: -9 ddb{0}> machine ddbcpu 1 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 fifo_write(ffff80002a12db50) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8079cc2050,ffff80002a12dbe8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8079cc2050,ffff80002a041400,fe,0,1,669eed74240b245,ffff80002a12dd10,fffffd8079cc2050,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a12dd10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8079cc2128,ffff80002a12de90,ffff80002a12dec0,ffff80002a12ddc0,ffff80002a041400) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800035ba96f0,20000700,7,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a12e040) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a12e040) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1827fad50f0, count: 7 ddb{1}> trace fifo_write(ffff80002a12db50) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8079cc2050,ffff80002a12dbe8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8079cc2050,ffff80002a041400,fe,0,1,669eed74240b245,ffff80002a12dd10,fffffd8079cc2050,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a12dd10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8079cc2128,ffff80002a12de90,ffff80002a12dec0,ffff80002a12ddc0,ffff80002a041400) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800035ba96f0,20000700,7,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a12e040) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a12e040) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1827fad50f0, count: -8