uvm_fault(0xfffffd805f903a58, 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 481744 85847 32767 0x10 0 0 syz-executor * 58776 85847 32767 0x10 0x4000000 1K syz-executor fifo_write(ffff80002a075b10) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80660238b8,ffff80002a075ba8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80660238b8,ffff800029fe6c00,104,0,1,e959c286f2606c1e,ffff80002a075cd0,fffffd80660238b8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a075cd0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd806202b200,ffff80002a075e50,ffff80002a075e80,ffff80002a075d80,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80002ed74fb8,20000a40,4,200001c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a076000) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a076000) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x136571a67f0, 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(0xfffffd805f903a58, 0x8, 0, 1) -> e ddb{1}> trace fifo_write(ffff80002a075b10) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80660238b8,ffff80002a075ba8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80660238b8,ffff800029fe6c00,104,0,1,e959c286f2606c1e,ffff80002a075cd0,fffffd80660238b8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a075cd0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd806202b200,ffff80002a075e50,ffff80002a075e80,ffff80002a075d80,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80002ed74fb8,20000a40,4,200001c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a076000) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a076000) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x136571a67f0, count: -8 ddb{1}> show registers rdi 0xfffffd80660238b8 rsi 0x1b21 __ALIGN_SIZE+0xb21 rbp 0xffff80002a075b00 rbx 0xfffffd80660238b8 rdx 0xffff800033a12000 rcx 0x1b20 __ALIGN_SIZE+0xb20 rax 0 r8 0 r9 0x1 r10 0xffff800029b7bff0 r11 0xb0e19954e2eb93a7 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a075ba8 r14 0xffff80002a075b10 r15 0x1 rip 0xffffffff82e22ede fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a075ad0 ss 0x10 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{1}> show proc PROC (syz-executor) tid=58776 pid=85847 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002ed74aa8,0xffffffff835e4058 process=0xffff80002edda8c8 user=0xffff80002a071000, vmspace=0xfffffd805f903a58 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85847 481744 74013 32767 7 0x10 syz-executor *85847 58776 74013 32767 7 0x4000010 syz-executor 54199 327233 89166 32767 2 0x10 syz-executor 54199 47327 89166 32767 2 0x4000010 syz-executor 36122 280259 52703 32767 3 0x90 nanoslp syz-executor 36122 20323 52703 32767 3 0x4000090 fifow syz-executor 36122 108398 52703 32767 3 0x4000090 fsleep syz-executor 66103 413726 11812 32767 3 0x90 nanoslp syz-executor 66103 132587 11812 32767 3 0x4000090 kqsel syz-executor 66103 17502 11812 32767 3 0x4000090 fsleep syz-executor 66103 102831 11812 32767 3 0x4000090 fsleep syz-executor 24459 320719 72596 32767 3 0x90 nanoslp syz-executor 24459 477921 72596 32767 3 0x4000090 pipewr syz-executor 24459 496336 72596 32767 3 0x4000090 fsleep syz-executor 60751 360883 47794 32767 3 0x90 nanoslp syz-executor 60751 344937 47794 32767 3 0x4000090 sbwait syz-executor 60751 232075 47794 32767 3 0x4000090 fsleep syz-executor 72596 424416 35986 32767 3 0x90 nanoslp syz-executor 35986 410179 49854 0 3 0x82 wait syz-executor 74013 434246 87021 32767 3 0x90 nanoslp syz-executor 87021 419496 49854 0 3 0x82 wait syz-executor 3049 88323 14769 32767 2 0x10 syz-executor 14769 234131 49854 0 3 0x82 wait syz-executor 44717 475904 43717 32767 3 0x10 biowait syz-executor 43717 357235 49854 0 3 0x82 wait syz-executor 52703 69669 35201 32767 3 0x90 nanoslp syz-executor 35201 259849 49854 0 3 0x82 wait syz-executor 11812 274708 52849 32767 3 0x90 nanoslp syz-executor 52849 441268 49854 0 3 0x82 wait syz-executor 89166 467930 89960 32767 3 0x90 nanoslp syz-executor 89960 507935 49854 0 3 0x82 wait syz-executor 47794 483062 11375 32767 3 0x90 nanoslp syz-executor 11375 372910 49854 0 3 0x82 wait syz-executor 27212 205376 0 0 3 0x14200 bored sosplice 49854 474180 29314 0 3 0x82 kqread syz-executor 29314 89472 66335 0 3 0x10008a sigsusp ksh 66335 294786 10911 0 3 0x98 kqread sshd-session 10911 190062 90249 0 3 0x92 kqread sshd-session 74708 427533 1 0 3 0x100083 ttyin getty 90249 40768 1 0 3 0x88 kqread sshd 75132 503586 31169 73 3 0x1100090 kqread syslogd 31169 335665 1 0 3 0x100082 sbwait syslogd 11611 417817 1 0 3 0x100080 kqread resolvd 19471 428880 94594 77 3 0x100092 kqread dhcpleased 50849 385614 94594 77 3 0x100092 kqread dhcpleased 94594 298712 1 0 3 0x80 kqread dhcpleased 60168 90937 0 0 3 0x14200 bored smr 48008 240840 0 0 3 0x14200 pgzero zerothread 11284 215989 0 0 3 0x14200 aiodoned aiodoned 93688 517233 0 0 3 0x14200 syncer update 23488 90306 0 0 3 0x14200 cleaner cleaner 75594 235070 0 0 3 0x14200 reaper reaper 5667 45063 0 0 3 0x14200 pgdaemon pagedaemon 12531 310001 0 0 3 0x14200 bored viomb 96997 37411 0 0 3 0x40014200 acpi0 acpi0 50628 9364 0 0 3 0x40014200 idle1 68826 37490 0 0 3 0x14200 bored softnet3 54335 354982 0 0 3 0x14200 bored softnet2 65882 427129 0 0 3 0x14200 bored softnet1 58524 121578 0 0 3 0x14200 bored softnet0 24235 426055 0 0 3 0x14200 bored systqmp 15903 324629 0 0 3 0x14200 bored systq 19981 297655 0 0 3 0x14200 tmoslp softclockmp 76521 371078 0 0 3 0x40014200 tmoslp softclock 11175 227510 0 0 3 0x40014200 idle0 1 464446 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 85847 (syz-executor) thread 0xffff80002ed74fb8 (58776) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835a30b8) #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 (0xfffffd8079343a28) #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 3049 (syz-executor) thread 0xffff8000ffff7968 (88323) exclusive rrwlock inode r = 0 (0xfffffd80693bc098) #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 (0xfffffd806c1994e8) #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 44717 (syz-executor) thread 0xffff80002ed74d30 (475904) exclusive rrwlock inode r = 0 (0xfffffd80693bca28) #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:3100 #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 (0xfffffd806c199a38) #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:3085 #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 10217 10029K 10036K 166960K 12719 0 pcb 17 20K 22K 166960K 25 0 rtable 244 6K 7K 166960K 16738 0 pf 31 16K 16K 166960K 994 0 ifaddr 42 11K 11K 166960K 1941 0 ifgroup 50 2K 2K 166960K 1961 0 sysctl 4 1K 5K 166960K 16 0 counters 64 36K 36K 166960K 1012 0 ioctlops 0 0K 2K 166960K 1134 0 iov 1 16K 32K 166960K 2489 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1469 92K 92K 166960K 12989 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 438 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 683 0 dirhash 24 4K 5K 166960K 513 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 24 89K 157K 166960K 27289 0 sigio 0 0K 0K 166960K 715 0 proc 56 78K 176K 166960K 16139 0 subproc 104 6K 13K 166960K 7410 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6623 0 in_multi 99 7K 8K 166960K 6374 0 ether_multi 1 0K 0K 166960K 159 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 277 1235K 1235K 166960K 277 0 exec 0 0K 1K 166960K 11416 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 268 75K 131K 166960K 227760 0 UVM aobj 131 6K 8K 166960K 139 0 pinsyscall 45 90K 126K 166960K 40518 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 1K 166960K 1792 0 NDP 11 0K 2K 166960K 1441 0 temp 76 6824K 6952K 166960K 190939 0 kqueue 15 24K 38K 166960K 3913 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 4233 0 4230 33 32 1 3 0 8 0 rtentry 112 5546 0 5431 19 15 4 4 0 8 0 unpcb 144 27980 0 27954 124 122 2 10 0 8 0 syncache 336 103 0 103 34 33 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 44 0 44 24 24 0 1 0 8 0 tcpcb 808 15694 0 15682 177 168 9 15 0 8 7 arp 120 973 0 954 1 0 1 1 0 8 0 ipq 40 107 0 98 3 2 1 1 0 8 0 ipqe 40 658 0 644 3 2 1 1 0 8 0 inpcb 336 37133 0 37113 223 212 11 15 0 8 8 ip6q 72 6 0 6 3 3 0 1 0 8 0 ip6af 40 12 0 12 3 3 0 1 0 8 0 nd6 136 1678 0 1650 9 7 2 2 0 8 0 kcovpl 48 570 0 562 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 22564 0 22078 220 187 33 33 0 8 1 art_table 32 22565 0 22078 12 7 5 5 0 8 0 art_node 16 5545 0 5440 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 7 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 681 0 671 1 0 1 1 0 8 0 shmpl 112 136 0 8 4 0 4 4 0 8 0 dirhash 1024 358 0 329 4 0 4 4 0 8 0 dino2pl 256 34326 0 31183 198 1 197 197 0 8 0 ffsino 272 34326 0 31183 211 1 210 210 0 8 0 nchpl 144 63101 0 60171 109 0 109 109 0 8 0 uvmvnodes 80 10164 0 0 208 0 208 208 0 8 0 vnodes 216 10164 0 0 565 0 565 565 0 8 0 namei 1024 281229 0 281227 50 49 1 2 0 8 0 percpumem 16 520 0 474 1 0 1 1 0 8 0 kstatmem 264 970 0 948 4 2 2 2 0 8 0 scxspl 216 311857 0 311856 77 74 3 8 1 8 2 plimitpl 152 9002 0 8975 2 0 2 2 0 8 0 sigapl 424 26436 0 26381 14 7 7 9 0 8 0 futexpl 64 304917 0 304912 31 30 1 1 0 8 0 knotepl 120 2038 0 0 32 0 32 32 0 8 0 kqueuepl 216 8918 0 8906 91 88 3 8 0 8 2 pipepl 320 5148 0 5120 64 56 8 9 0 8 4 fdescpl 496 26417 0 26381 24 18 6 7 0 8 1 filepl 152 189553 0 189299 156 134 22 22 0 8 8 lockfpl 104 8007 0 8005 3 2 1 2 0 8 0 lockfspl 48 2271 0 2269 1 0 1 1 0 8 0 sessionpl 144 492 0 476 1 0 1 1 0 8 0 pgrppl 48 1608 0 1584 1 0 1 1 0 8 0 ucredpl 104 36474 0 36455 1 0 1 1 0 8 0 zombiepl 144 26381 0 26381 1 0 1 1 0 8 1 processpl 1160 26436 0 26381 13 8 5 6 0 8 0 procpl 648 60305 0 60239 18 11 7 7 0 8 0 srpgc 96 27 0 27 14 14 0 1 0 8 0 sosppl 168 330 0 330 23 22 1 1 0 8 1 sockpl 664 70033 0 69985 396 383 13 26 0 8 8 mcl64k 65536 31 0 0 3 0 3 3 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 19 0 0 3 0 3 3 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 664 0 0 33 12 21 31 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 6429 0 0 351 1 350 351 0 8 0 bufpl 280 48163 0 37993 727 0 727 727 0 8 0 anonpl 24 3322138 0 3310602 398 279 119 121 0 185 23 amapchunkpl 152 742645 0 741886 251 206 45 49 0 158 8 amappl16 200 81736 0 81405 431 400 31 44 0 8 6 amappl15 192 20 0 20 8 8 0 1 0 8 0 amappl14 184 1055 0 1045 1 0 1 1 0 8 0 amappl13 176 26 0 25 7 6 1 1 0 8 0 amappl12 168 34606 0 34570 15 13 2 3 0 8 0 amappl11 160 88 0 78 1 0 1 1 0 8 0 amappl10 152 14 0 13 2 1 1 1 0 8 0 amappl9 144 144 0 143 2 1 1 1 0 8 0 amappl8 136 27 0 25 1 0 1 1 0 8 0 amappl7 128 1042 0 1030 1 0 1 1 0 8 0 amappl6 120 4878 0 4876 1 0 1 1 0 8 0 amappl5 112 2033 0 2022 1 0 1 1 0 8 0 amappl4 104 1771 0 1754 1 0 1 1 0 8 0 amappl3 96 131808 0 131697 9 5 4 4 0 8 0 amappl2 88 27804 0 27722 3 0 3 3 0 8 0 amappl1 80 117059 0 116518 26 14 12 15 0 8 0 amappl 88 222017 0 221803 14 8 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 72 138 0 8 3 0 3 3 0 8 0 uaddrrnd 24 26417 0 26381 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 26417 0 26381 1 0 1 1 0 8 0 vmmpekpl 168 207434 0 207382 5 1 4 5 0 8 0 vmmpepl 168 1613360 0 1611027 373 247 126 132 0 357 10 vmsppl 440 26416 0 26381 11 6 5 6 0 8 0 rwobjpl 56 405961 0 394467 201 33 168 170 0 8 2 pdppl 4096 52841 0 52762 1171 1086 85 113 0 8 6 pvpl 32 47927 0 0 378 0 378 378 0 265 0 pmappl 248 26416 0 26381 10 7 3 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2684 0 1752 27 0 27 27 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83425ff0) 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(ffffffff835a2eb0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a2eb0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a08ffb0,ffff80000006c780) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __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(ffffffff835a2eb0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a2eb0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a090120,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7cee887baf50, count: 4 ddb{0}> trace x86_ipi_db(ffffffff83425ff0) 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(ffffffff835a2eb0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a2eb0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a08ffb0,ffff80000006c780) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __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(ffffffff835a2eb0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835a2eb0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002a090120,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7cee887baf50, count: -11 ddb{0}> machine ddbcpu 1 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 fifo_write(ffff80002a075b10) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80660238b8,ffff80002a075ba8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80660238b8,ffff800029fe6c00,104,0,1,e959c286f2606c1e,ffff80002a075cd0,fffffd80660238b8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a075cd0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd806202b200,ffff80002a075e50,ffff80002a075e80,ffff80002a075d80,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80002ed74fb8,20000a40,4,200001c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a076000) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a076000) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x136571a67f0, count: 7 ddb{1}> trace fifo_write(ffff80002a075b10) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80660238b8,ffff80002a075ba8,8,fffffd807f7d32d8) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80660238b8,ffff800029fe6c00,104,0,1,e959c286f2606c1e,ffff80002a075cd0,fffffd80660238b8,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a075cd0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd806202b200,ffff80002a075e50,ffff80002a075e80,ffff80002a075d80,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80002ed74fb8,20000a40,4,200001c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a076000) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a076000) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x136571a67f0, count: -8