uvm_fault(0xfffffd806c1c5c20, 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 *164132 85525 32767 0x10 0x4000000 0K syz-executor 76860 44119 32767 0x10 0 1 syz-executor fifo_write(ffff80002c92c950) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80551b0520,ffff80002c92c9e8,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80551b0520,ffff800029fe7800,107,0,1,b280dc613cf7e6eb,ffff80002c92cb10,fffffd80551b0520,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002c92cb10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80616cc208,ffff80002c92cc90,ffff80002c92ccc0,ffff80002c92cbc0,ffff800029fe7800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80003377f740,200002c0,ffffff9c,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002c92ce40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002c92ce40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x306cd7e9520, 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(0xfffffd806c1c5c20, 0x8, 0, 1) -> e ddb{0}> trace fifo_write(ffff80002c92c950) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80551b0520,ffff80002c92c9e8,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80551b0520,ffff800029fe7800,107,0,1,b280dc613cf7e6eb,ffff80002c92cb10,fffffd80551b0520,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002c92cb10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80616cc208,ffff80002c92cc90,ffff80002c92ccc0,ffff80002c92cbc0,ffff800029fe7800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80003377f740,200002c0,ffffff9c,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002c92ce40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002c92ce40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x306cd7e9520, count: -8 ddb{0}> show registers rdi 0xfffffd80551b0520 rsi 0x1f73 __ALIGN_SIZE+0xf73 rbp 0xffff80002c92c940 rbx 0xfffffd80551b0520 rdx 0xffff80002a2c9000 rcx 0x1f72 __ALIGN_SIZE+0xf72 rax 0 r8 0 r9 0x1 r10 0xffffffff83452ff0 cpu_info_full_primary+0x1ff0 r11 0x30209dc5eeab443e r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002c92c9e8 r14 0xffff80002c92c950 r15 0x1 rip 0xffffffff822a0dce fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002c92c910 ss 0 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{0}> show proc PROC (syz-executor) tid=164132 pid=85525 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=0xffff80003377efa8,0xffffffff835d90d8 process=0xffff800033795220 user=0xffff80002c927000, vmspace=0xfffffd806c1c5c20 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85525 320058 47045 32767 2 0x10 syz-executor *85525 164132 47045 32767 7 0x4000010 syz-executor 77493 336994 58530 32767 2 0x10 syz-executor 77493 326253 58530 32767 3 0x4000090 fsleep syz-executor 11899 100010 23737 32767 2 0x10 syz-executor 11899 353536 23737 32767 2 0x4000010 syz-executor 69356 409326 17953 32767 2 0x10 syz-executor 49980 443214 37539 32767 2 0x490 syz-executor 49980 250194 37539 32767 3 0x4000090 netacc syz-executor 49980 356196 37539 32767 3 0x4000090 fsleep syz-executor 49980 189315 37539 32767 3 0x4000090 fsleep syz-executor 17953 208413 61344 32767 2 0x10 syz-executor 61344 433877 76690 0 3 0x82 wait syz-executor 58530 365587 56329 32767 3 0x90 nanoslp syz-executor 56329 65585 76690 0 3 0x82 wait syz-executor 67812 491588 7664 32767 2 0x10 syz-executor 7664 485050 76690 0 3 0x82 wait syz-executor 51328 166992 7723 32767 3 0x90 wait syz-executor 7723 505544 76690 0 3 0x82 wait syz-executor 47045 13865 72493 32767 3 0x90 nanoslp syz-executor 72493 131474 76690 0 3 0x82 wait syz-executor 37539 29098 55116 32767 2 0x490 syz-executor 55116 473098 76690 0 3 0x82 wait syz-executor 44119 76860 46231 32767 7 0x10 syz-executor 46231 373784 76690 0 3 0x82 wait syz-executor 23737 487267 27877 32767 3 0x90 nanoslp syz-executor 27877 175781 76690 0 3 0x82 wait syz-executor 29072 512121 69677 0 3 0x100082 sbwait ndp 69677 157648 6194 0 3 0x10008a sigsusp sh 6194 29824 1 0 3 0x80 wait syz-executor 99481 121925 0 0 3 0x14200 bored sosplice 76690 460431 61457 0 3 0x82 kqread syz-executor 61457 298861 90638 0 3 0x10008a sigsusp ksh 90638 42567 69750 0 3 0x98 kqread sshd-session 69750 58656 25583 0 3 0x92 kqread sshd-session 44473 450806 1 0 3 0x100083 ttyin getty 25583 86713 1 0 3 0x88 kqread sshd 58300 468998 20475 73 3 0x1100090 kqread syslogd 20475 233609 1 0 3 0x100082 sbwait syslogd 51293 153190 1 0 3 0x100080 kqread resolvd 32777 120727 90470 77 3 0x100092 kqread dhcpleased 80592 186266 90470 77 3 0x100092 kqread dhcpleased 90470 456900 1 0 3 0x80 kqread dhcpleased 80316 178650 0 0 3 0x14200 bored smr 54257 484406 0 0 3 0x14200 pgzero zerothread 95745 479365 0 0 3 0x14200 aiodoned aiodoned 86707 14329 0 0 3 0x14200 syncer update 44358 369822 0 0 3 0x14200 cleaner cleaner 17786 247631 0 0 3 0x14200 reaper reaper 5351 153172 0 0 3 0x14200 pgdaemon pagedaemon 99185 458765 0 0 3 0x14200 bored viomb 44030 208214 0 0 3 0x40014200 acpi0 acpi0 67254 76869 0 0 3 0x40014200 idle1 91575 142951 0 0 3 0x14200 bored softnet3 43637 419380 0 0 3 0x14200 bored softnet2 20362 414886 0 0 3 0x14200 bored softnet1 76413 154471 0 0 3 0x14200 bored softnet0 19958 496811 0 0 3 0x14200 bored systqmp 48024 391417 0 0 3 0x14200 bored systq 54999 426936 0 0 3 0x14200 tmoslp softclockmp 25067 109006 0 0 2 0x40014200 softclock 30265 290062 0 0 3 0x40014200 idle0 1 513556 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 85525 (syz-executor) thread 0xffff80003377f740 (164132) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835678f8) #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 (0xfffffd8067be1f78) #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 11899 (syz-executor) thread 0xffff80003377e588 (353536) exclusive rrwlock inode r = 0 (0xfffffd8067be12b8) #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_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728 #8 ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0xff sys/kern/vfs_vops.c:103 #10 vn_open+0x491 sys/kern/vfs_vnops.c:116 #11 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #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 (0xfffffd8067be11a8) #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 vn_open+0x1f4 sys/kern/vfs_vnops.c:107 #8 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #9 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #9 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 67812 (syz-executor) thread 0xffff8000351a74b0 (491588) exclusive rrwlock inode r = 0 (0xfffffd8067be13c8) #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 (0xfffffd8056af85f0) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 10029K 10036K 166960K 13018 0 pcb 17 18K 20K 166960K 23 0 rtable 240 6K 7K 166960K 18906 0 pf 31 16K 16K 166960K 1188 0 ifaddr 42 15K 19K 166960K 2335 0 ifgroup 50 2K 2K 166960K 2351 0 sysctl 4 1K 5K 166960K 10 0 counters 64 36K 36K 166960K 1208 0 ioctlops 0 0K 3K 166960K 1271 0 iov 0 0K 36K 166960K 2424 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1468 92K 92K 166960K 15053 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 426 0 VM map 2 1K 1K 166960K 2 0 sem 11 1K 1K 166960K 11 0 dirhash 15 3K 4K 166960K 510 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 27 101K 169K 166960K 28701 0 sigio 0 0K 0K 166960K 822 0 proc 56 78K 176K 166960K 18708 0 subproc 117 7K 13K 166960K 9854 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 5978 0 in_multi 99 7K 7K 166960K 7443 0 ether_multi 1 0K 0K 166960K 182 0 mrt 2 0K 0K 166960K 11 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 283 1261K 1261K 166960K 283 0 exec 0 0K 1K 166960K 11822 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 276 83K 140K 166960K 233230 0 UVM aobj 131 6K 8K 166960K 143 0 pinsyscall 49 98K 134K 166960K 44945 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1668 0 NDP 11 0K 2K 166960K 1735 0 temp 79 6824K 6952K 166960K 208462 0 kqueue 14 22K 39K 166960K 4018 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 4362 0 4358 28 26 2 3 0 8 1 rtentry 112 6649 0 6536 13 9 4 4 0 8 0 unpcb 144 24790 0 24771 131 127 4 10 0 8 3 syncache 336 191 0 191 47 47 0 1 0 8 0 tcpqe 32 78 0 78 36 36 0 1 0 8 0 tcpcb 808 15046 0 15035 209 201 8 15 0 8 6 arp 120 1181 0 1163 1 0 1 1 0 8 0 ipq 40 150 0 147 2 1 1 1 0 8 0 ipqe 40 1025 0 1022 2 1 1 1 0 8 0 inpcb 336 37988 0 37972 279 269 10 21 0 8 8 ip6q 72 4 0 4 4 4 0 1 0 8 0 ip6af 40 8 0 8 4 4 0 1 0 8 0 nd6 136 1985 0 1958 6 4 2 2 0 8 0 kcovpl 48 758 0 749 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 27054 0 26583 229 198 31 32 0 8 0 art_table 32 27055 0 26583 8 3 5 5 0 8 0 art_node 16 6648 0 6545 1 0 1 1 0 8 0 sysvmsgpl 40 113 0 81 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 364 0 337 12 8 4 4 0 8 0 dino2pl 256 33679 0 30216 217 0 217 217 0 8 0 ffsino 272 33679 0 30216 232 0 232 232 0 8 0 nchpl 144 61399 0 58221 118 0 118 118 0 8 0 uvmvnodes 80 10519 0 0 215 0 215 215 0 8 0 vnodes 216 10519 0 0 585 0 585 585 0 8 0 namei 1024 278396 0 278393 59 57 2 3 0 8 1 percpumem 16 618 0 572 1 0 1 1 0 8 0 kstatmem 264 1166 0 1144 2 0 2 2 0 8 0 scxspl 216 336363 0 336363 93 92 1 8 1 8 1 plimitpl 152 9711 0 9685 3 1 2 2 0 8 0 sigapl 424 27566 0 27508 22 13 9 9 0 8 0 futexpl 64 295120 0 295117 30 29 1 1 0 8 0 knotepl 120 1628 0 0 19 0 19 19 0 8 0 kqueuepl 216 9167 0 9156 93 91 2 8 0 8 1 pipepl 320 5755 0 5725 54 51 3 9 0 8 0 fdescpl 496 27547 0 27508 20 14 6 8 0 8 0 filepl 152 189209 0 188942 150 134 16 24 0 8 2 lockfpl 104 6721 0 6719 5 4 1 2 0 8 0 lockfspl 48 1965 0 1963 1 0 1 1 0 8 0 sessionpl 144 683 0 666 1 0 1 1 0 8 0 pgrppl 48 2214 0 2189 1 0 1 1 0 8 0 ucredpl 104 35100 0 35081 1 0 1 1 0 8 0 zombiepl 144 27509 0 27508 1 0 1 1 0 8 0 processpl 1160 27566 0 27508 12 7 5 6 0 8 0 procpl 648 60838 0 60774 17 10 7 8 0 8 0 srpgc 96 30 0 30 14 14 0 1 0 8 0 sosppl 168 357 0 357 32 31 1 1 0 8 1 sockpl 664 67689 0 67650 412 399 13 25 0 8 8 mcl64k 65536 49 0 0 4 1 3 3 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 23 0 0 2 0 2 2 0 8 0 mcl2k 2048 655 0 0 28 8 20 28 0 8 0 mtagpl 96 18 0 0 1 0 1 1 0 8 0 mbufpl 256 7383 0 0 396 0 396 396 0 8 0 bufpl 280 45181 0 34660 752 0 752 752 0 8 0 anonpl 24 3521840 0 3511281 419 320 99 113 0 185 7 amapchunkpl 152 751446 0 750654 231 189 42 56 0 158 3 amappl16 200 85572 0 85333 426 399 27 37 0 8 8 amappl15 192 9 0 9 4 4 0 1 0 8 0 amappl14 184 1440 0 1429 1 0 1 1 0 8 0 amappl13 176 69 0 69 13 13 0 1 0 8 0 amappl12 168 37466 0 37427 11 8 3 3 0 8 0 amappl11 160 72 0 62 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 132 0 131 2 1 1 1 0 8 0 amappl8 136 35 0 33 1 0 1 1 0 8 0 amappl7 128 1361 0 1349 1 0 1 1 0 8 0 amappl6 120 5849 0 5846 1 0 1 1 0 8 0 amappl5 112 2499 0 2489 1 0 1 1 0 8 0 amappl4 104 2466 0 2447 1 0 1 1 0 8 0 amappl3 96 133435 0 133325 7 3 4 4 0 8 0 amappl2 88 29765 0 29680 4 1 3 3 0 8 0 amappl1 80 152788 0 152201 26 11 15 17 0 8 0 amappl 88 226534 0 226315 7 0 7 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 27547 0 27508 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 27547 0 27508 1 0 1 1 0 8 0 vmmpekpl 168 240389 0 240321 7 3 4 5 0 8 0 vmmpepl 168 1728184 0 1725844 401 281 120 130 0 357 6 vmsppl 440 27546 0 27508 20 15 5 7 0 8 0 rwobjpl 56 452086 0 440261 210 38 172 172 0 8 0 pdppl 4096 55101 0 55016 1481 1392 89 119 0 8 4 pvpl 32 52663 0 0 416 0 416 416 0 265 0 pmappl 248 27546 0 27508 12 8 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3204 0 2183 30 0 30 30 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace fifo_write(ffff80002c92c950) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80551b0520,ffff80002c92c9e8,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80551b0520,ffff800029fe7800,107,0,1,b280dc613cf7e6eb,ffff80002c92cb10,fffffd80551b0520,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002c92cb10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80616cc208,ffff80002c92cc90,ffff80002c92ccc0,ffff80002c92cbc0,ffff800029fe7800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80003377f740,200002c0,ffffff9c,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002c92ce40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002c92ce40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x306cd7e9520, 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff835676f0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835676f0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff800031dc4480) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800031dc4480) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f644f740390, count: 8 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff835676f0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835676f0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff800031dc4480) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800031dc4480) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f644f740390, count: -7