uvm_fault(0xfffffd8064253a50, 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 *216078 15778 32767 0x1010 0x4080000 1K syz-executor fifo_write(ffff80002a0c8700) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8063ec1c10,ffff80002a0c8798,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8063ec1c10,ffff80002a042c00,fe,0,1,fd2719a0da313531,ffff80002a0c88c0,fffffd8063ec1c10,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0c88c0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd804e39ea50,ffff80002a0c8a40,ffff80002a0c8a70,ffff80002a0c8970,ffff80002a042c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80003359e568,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0c8bf0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c8bf0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22051b0aea0, 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(0xfffffd8064253a50, 0x8, 0, 1) -> e ddb{1}> trace fifo_write(ffff80002a0c8700) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8063ec1c10,ffff80002a0c8798,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8063ec1c10,ffff80002a042c00,fe,0,1,fd2719a0da313531,ffff80002a0c88c0,fffffd8063ec1c10,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0c88c0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd804e39ea50,ffff80002a0c8a40,ffff80002a0c8a70,ffff80002a0c8970,ffff80002a042c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80003359e568,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0c8bf0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c8bf0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22051b0aea0, count: -8 ddb{1}> show registers rdi 0xfffffd8063ec1c10 rsi 0x1 rbp 0xffff80002a0c86f0 rbx 0xfffffd8063ec1c10 rdx 0 rcx 0xffff80003359e568 rax 0 r8 0 r9 0x1 r10 0xffff800029b7bff0 r11 0x1f02da2c4b953da2 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a0c8798 r14 0xffff80002a0c8700 r15 0x1 rip 0xffffffff82829d5e fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a0c86c0 ss 0x10 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{1}> show proc PROC (syz-executor) tid=216078 pid=15778 tcnt=2 stat=onproc flags process=1010 proc=4080000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003359f498 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003359f498,0xffffffff83501980 process=0xffff8000335a6448 user=0xffff80002a0c3000, vmspace=0xfffffd8064253a50 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 15778 248039 57335 32767 3 0x3010 suspend syz-executor *15778 216078 57335 32767 7 0x4081010 syz-executor 26448 409590 154 32767 3 0x90 nanoslp syz-executor 26448 73841 154 32767 3 0x4000090 kqread syz-executor 26448 155665 154 32767 3 0x4000090 fsleep syz-executor 26448 248530 154 32767 3 0x4000090 fsleep syz-executor 154 158354 12409 32767 3 0x90 nanoslp syz-executor 12409 106386 36874 0 3 0x82 wait syz-executor 65931 458577 70639 32767 3 0x90 nanoslp syz-executor 70639 264922 36874 0 3 0x82 wait syz-executor 90012 16251 94400 32767 3 0x10 biowait syz-executor 94400 508347 36874 0 3 0x82 wait syz-executor 24900 333553 78864 32767 3 0x90 wait syz-executor 78864 36218 36874 0 3 0x82 wait syz-executor 57335 465255 31425 32767 3 0x90 nanoslp syz-executor 31425 215250 36874 0 3 0x82 wait syz-executor 9389 370949 61732 32767 3 0x10 biowait syz-executor 61732 242125 36874 0 3 0x82 wait syz-executor 16255 338069 72998 32767 3 0x90 wait syz-executor 72998 209868 36874 0 3 0x82 wait syz-executor 12322 388494 41470 32767 3 0x90 nanoslp syz-executor 41470 394672 36874 0 3 0x82 wait syz-executor 8329 114635 98544 0 3 0x100082 sbwait arp 98544 315859 90902 0 3 0x10008a sigsusp sh 90902 72328 1 0 3 0x80 wait syz-executor 56046 486861 70434 0 3 0x100082 sbwait arp 70434 5093 96608 0 3 0x10008a sigsusp sh 96608 435179 1 0 3 0x80 wait syz-executor 2566 144637 0 0 3 0x14200 bored sosplice 36874 174012 56217 0 3 0x82 kqread syz-executor 56217 64244 77757 0 3 0x10008a sigsusp ksh 77757 354990 54082 0 3 0x98 kqread sshd-session 54082 389817 1497 0 3 0x92 kqread sshd-session 88367 423210 1 0 3 0x100083 ttyin getty 1497 290210 1 0 3 0x88 kqread sshd 48213 213634 75930 73 3 0x1100090 kqread syslogd 75930 102578 1 0 3 0x100082 sbwait syslogd 70698 34979 1 0 3 0x100080 kqread resolvd 61726 375354 40589 77 3 0x100092 kqread dhcpleased 77299 431802 40589 77 3 0x100092 kqread dhcpleased 40589 4943 1 0 3 0x80 kqread dhcpleased 94989 32649 0 0 3 0x14200 bored smr 53758 232047 0 0 3 0x14200 pgzero zerothread 21588 222556 0 0 3 0x14200 aiodoned aiodoned 44719 341768 0 0 3 0x14200 syncer update 54656 204385 0 0 3 0x14200 cleaner cleaner 42847 519090 0 0 3 0x14200 reaper reaper 2511 300281 0 0 3 0x14200 pgdaemon pagedaemon 23153 101364 0 0 3 0x14200 bored viomb 467 442652 0 0 3 0x40014200 acpi0 acpi0 86524 11011 0 0 3 0x40014200 idle1 71904 253975 0 0 3 0x14200 bored softnet3 92875 222658 0 0 3 0x14200 bored softnet2 94605 502549 0 0 3 0x14200 bored softnet1 340 295464 0 0 3 0x14200 bored softnet0 76167 473092 0 0 3 0x14200 bored systqmp 54510 349274 0 0 3 0x14200 bored systq 72106 435946 0 0 3 0x14200 tmoslp softclockmp 7876 321006 0 0 3 0x40014200 tmoslp softclock 32877 157742 0 0 7 0x40014200 idle0 1 82926 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 15778 (syz-executor) thread 0xffff80003359e568 (216078) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff834f7918) #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 (0xfffffd807dcff5e8) #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 90012 (syz-executor) thread 0xffff8000ffffcf40 (16251) exclusive rrwlock inode r = 0 (0xfffffd8075ac4c50) #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 (0xfffffd804f45c918) #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 Process 9389 (syz-executor) thread 0xffff800033f9cf50 (370949) exclusive rrwlock inode r = 0 (0xfffffd8075ac44e0) #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 (0xfffffd8070dfd818) #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 10221 10029K 10036K 166960K 12396 0 pcb 17 18K 20K 166960K 23 0 rtable 252 7K 7K 166960K 12187 0 pf 31 16K 16K 166960K 770 0 ifaddr 42 11K 11K 166960K 1501 0 ifgroup 50 2K 2K 166960K 1519 0 sysctl 4 1K 5K 166960K 11 0 counters 64 36K 36K 166960K 794 0 ioctlops 0 0K 2K 166960K 675 0 iov 0 0K 32K 166960K 1274 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1481 93K 93K 166960K 10241 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 239 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 349 0 dirhash 21 4K 5K 166960K 273 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 30 113K 181K 166960K 16957 0 sigio 0 0K 0K 166960K 631 0 proc 56 78K 176K 166960K 11926 0 subproc 130 8K 13K 166960K 5902 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 3033 0 in_multi 99 7K 7K 166960K 4624 0 ether_multi 1 0K 0K 166960K 79 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 301 1341K 1341K 166960K 301 0 exec 0 0K 1K 166960K 7395 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 298 92K 148K 166960K 136304 0 UVM aobj 131 7K 7K 166960K 138 0 pinsyscall 53 106K 142K 166960K 27334 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 999 0 NDP 11 0K 2K 166960K 1108 0 temp 83 6824K 6952K 166960K 115695 0 kqueue 14 22K 34K 166960K 2206 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 2692 0 2687 17 15 2 3 0 8 1 rtentry 112 4218 0 4099 13 9 4 4 0 8 0 unpcb 144 14933 0 14918 84 80 4 7 0 8 3 syncache 336 50 0 50 25 25 0 1 0 8 0 tcpqe 32 27 0 27 16 16 0 1 0 8 0 tcpcb 808 7361 0 7353 143 135 8 14 0 8 6 arp 120 744 0 725 1 0 1 1 0 8 0 ipq 40 65 0 61 3 2 1 1 0 8 0 ipqe 40 880 0 876 3 2 1 1 0 8 0 inpcb 336 21250 0 21238 185 175 10 16 0 8 8 ip6q 72 3 0 3 3 3 0 1 0 8 0 ip6af 40 6 0 6 3 3 0 1 0 8 0 nd6 136 1241 0 1209 3 1 2 2 0 8 0 kcovpl 48 454 0 444 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 17168 0 16656 212 178 34 34 0 8 1 art_table 32 17169 0 16656 10 5 5 5 0 8 0 art_node 16 4217 0 4108 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0 semapl 112 346 0 336 1 0 1 1 0 8 0 shmpl 112 135 0 7 4 0 4 4 0 8 0 dirhash 1024 198 0 171 4 0 4 4 0 8 0 dino2pl 256 20697 0 18125 164 2 162 162 0 8 0 ffsino 272 20697 0 18125 175 3 172 172 0 8 0 nchpl 144 36756 0 34296 93 1 92 92 0 8 0 uvmvnodes 80 9581 0 0 196 0 196 196 0 8 0 vnodes 216 9581 0 0 533 0 533 533 0 8 0 namei 1024 170864 0 170861 49 48 1 3 0 8 0 percpumem 16 411 0 365 1 0 1 1 0 8 0 kstatmem 264 752 0 730 3 1 2 2 0 8 0 scxspl 216 226280 0 226278 57 54 3 8 1 8 2 plimitpl 152 5413 0 5385 2 0 2 2 0 8 0 sigapl 424 16336 0 16275 14 6 8 9 0 8 0 futexpl 64 169549 0 169547 32 31 1 1 0 8 0 knotepl 120 1352 0 0 18 0 18 18 0 8 0 kqueuepl 216 4953 0 4943 55 50 5 5 0 8 4 pipepl 320 3417 0 3383 44 39 5 9 0 8 1 fdescpl 496 16317 0 16275 24 18 6 8 0 8 0 filepl 152 111842 0 111555 104 83 21 24 0 8 7 lockfpl 104 3719 0 3717 1 0 1 1 0 8 0 lockfspl 48 1256 0 1254 1 0 1 1 0 8 0 sessionpl 144 383 0 365 1 0 1 1 0 8 0 pgrppl 48 1185 0 1159 1 0 1 1 0 8 0 ucredpl 104 23475 0 23456 1 0 1 1 0 8 0 zombiepl 144 16280 0 16275 1 0 1 1 0 8 0 processpl 1160 16336 0 16275 7 1 6 6 0 8 0 procpl 648 35328 0 35263 14 7 7 8 0 8 0 srpgc 96 17 0 17 8 8 0 1 0 8 0 sosppl 168 170 0 170 30 29 1 1 0 8 1 sockpl 664 39280 0 39248 272 261 11 24 0 8 7 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 573 0 0 34 16 18 33 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 1413 0 0 66 0 66 66 0 8 0 bufpl 280 30119 0 20509 688 1 687 687 0 8 0 anonpl 24 2055183 0 2046560 342 264 78 107 0 185 0 amapchunkpl 152 447411 0 446634 211 177 34 59 0 158 0 amappl16 200 44110 0 43922 322 299 23 30 0 8 1 amappl15 192 15 0 15 10 10 0 1 0 8 0 amappl14 184 822 0 810 1 0 1 1 0 8 0 amappl13 176 18 0 18 13 12 1 1 0 8 1 amappl12 168 22749 0 22704 7 4 3 3 0 8 0 amappl11 160 56 0 46 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 149 0 146 1 0 1 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 820 0 807 1 0 1 1 0 8 0 amappl6 120 3778 0 3774 1 0 1 1 0 8 0 amappl5 112 1574 0 1563 1 0 1 1 0 8 0 amappl4 104 1365 0 1346 1 0 1 1 0 8 0 amappl3 96 77629 0 77506 8 4 4 4 0 8 0 amappl2 88 17385 0 17295 3 0 3 3 0 8 0 amappl1 80 79260 0 78645 21 7 14 17 0 8 0 amappl 88 132256 0 132019 9 2 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 72 137 0 7 3 0 3 3 0 8 0 uaddrrnd 24 16317 0 16275 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 16317 0 16275 1 0 1 1 0 8 0 vmmpekpl 168 131667 0 131602 9 5 4 5 0 8 0 vmmpepl 168 986883 0 984460 328 207 121 123 0 357 1 vmsppl 440 16316 0 16275 12 6 6 7 0 8 0 rwobjpl 56 254765 0 243863 197 39 158 158 0 8 0 pdppl 4096 32641 0 32550 1154 1057 97 125 0 8 6 pvpl 32 62553 0 0 504 0 504 504 0 265 0 pmappl 248 16316 0 16275 6 3 3 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2223 0 1641 17 0 17 17 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83408ff0) 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(ffffffff834f7710) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff834f7710) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff800029f95b30,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1219 sched_idle(ffffffff83408ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83408ff0) 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(ffffffff834f7710) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff834f7710) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff800029f95b30,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1219 sched_idle(ffffffff83408ff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 fifo_write(ffff80002a0c8700) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8063ec1c10,ffff80002a0c8798,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8063ec1c10,ffff80002a042c00,fe,0,1,fd2719a0da313531,ffff80002a0c88c0,fffffd8063ec1c10,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0c88c0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd804e39ea50,ffff80002a0c8a40,ffff80002a0c8a70,ffff80002a0c8970,ffff80002a042c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80003359e568,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0c8bf0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c8bf0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22051b0aea0, count: 7 ddb{1}> trace fifo_write(ffff80002a0c8700) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8063ec1c10,ffff80002a0c8798,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8063ec1c10,ffff80002a042c00,fe,0,1,fd2719a0da313531,ffff80002a0c88c0,fffffd8063ec1c10,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0c88c0) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd804e39ea50,ffff80002a0c8a40,ffff80002a0c8a70,ffff80002a0c8970,ffff80002a042c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80003359e568,20000700,5,20000200) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0c8bf0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0c8bf0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22051b0aea0, count: -8