uvm_fault(0xfffffd806bd78c10, 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 71890 41175 0 0 0 1 syz-executor * 71440 82485 0 0 0x4000000 0K syz-executor fifo_write(ffff80002a12aa50) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8065f78b48,ffff80002a12aae8,8,fffffd807f7d35b0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8065f78b48,ffff800029fe6c00,f9,0,1,a520d149ea244fa5,ffff80002a12ac10,fffffd8065f78b48,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a12ac10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8067ff0990,ffff80002a12ad90,ffff80002a12adc0,ffff80002a12acc0,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80002a03f460,20001340,ffffff9c,20001440) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a12af40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a12af40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6b0ad99a40, 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(0xfffffd806bd78c10, 0x8, 0, 1) -> e ddb{0}> trace fifo_write(ffff80002a12aa50) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8065f78b48,ffff80002a12aae8,8,fffffd807f7d35b0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8065f78b48,ffff800029fe6c00,f9,0,1,a520d149ea244fa5,ffff80002a12ac10,fffffd8065f78b48,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a12ac10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8067ff0990,ffff80002a12ad90,ffff80002a12adc0,ffff80002a12acc0,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80002a03f460,20001340,ffffff9c,20001440) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a12af40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a12af40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6b0ad99a40, count: -8 ddb{0}> show registers rdi 0xfffffd8065f78b48 rsi 0x30b2 __ALIGN_SIZE+0x20b2 rbp 0xffff80002a12aa40 rbx 0xfffffd8065f78b48 rdx 0xffff80002a96f000 rcx 0x30b1 __ALIGN_SIZE+0x20b1 rax 0 r8 0 r9 0x1 r10 0xffffffff834c5ff0 cpu_info_full_primary+0x1ff0 r11 0x3c365c43993e4b51 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a12aae8 r14 0xffff80002a12aa50 r15 0x1 rip 0xffffffff82fc9ade fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a12aa10 ss 0 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{0}> show proc PROC (syz-executor) tid=71440 pid=82485 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a03e2a8,0xffff8000371c7988 process=0xffff8000365a31f8 user=0xffff80002a125000, vmspace=0xfffffd806bd78c10 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 41175 71890 56677 0 7 0 syz-executor 58539 130315 96208 0 2 0 syz-executor 58539 350473 96208 0 2 0x4000000 syz-executor 29986 316931 44194 0 2 0 syz-executor 29986 21166 44194 0 3 0x4000080 fsleep syz-executor 29986 280848 44194 0 2 0x4000000 syz-executor 30705 301793 92087 0 2 0 syz-executor 30705 128167 92087 0 3 0x4000080 ttyout syz-executor 30705 35357 92087 0 3 0x4000080 fsleep syz-executor 30705 373687 92087 0 3 0x4000080 fsleep syz-executor 82485 469742 21282 0 2 0 syz-executor *82485 71440 21282 0 7 0x4000000 syz-executor 82485 306997 21282 0 3 0x4000080 fsleep syz-executor 86574 377832 94193 0 3 0x80 nanoslp syz-executor 86574 45568 94193 0 3 0x4000080 sbwait syz-executor 86574 101517 94193 0 3 0x4000080 fsleep syz-executor 56677 226498 77009 0 3 0x82 nanoslp syz-executor 13912 454273 77009 0 2 0x2 syz-executor 92087 414505 77009 0 3 0x82 nanoslp syz-executor 94193 80190 77009 0 3 0x82 nanoslp syz-executor 96208 270808 77009 0 3 0x82 nanoslp syz-executor 43471 50437 77009 0 3 0x82 nanoslp syz-executor 44194 235768 77009 0 3 0x82 nanoslp syz-executor 21282 167512 77009 0 3 0x82 nanoslp syz-executor 22932 196195 1 0 3 0x100083 ttyin getty 75627 321160 0 0 3 0x14200 bored sosplice 6743 130683 0 0 3 0x14200 acct acct 77009 400254 9648 0 2 0x2 syz-executor 9648 174304 28850 0 3 0x10008a sigsusp ksh 28850 294364 65775 0 3 0x98 kqread sshd-session 65775 22322 82162 0 3 0x92 kqread sshd-session 82162 225381 1 0 3 0x88 kqread sshd 99628 220127 23075 74 3 0x1100092 bpf pflogd 23075 96602 1 0 3 0x80 sbwait pflogd 44451 467940 34783 73 2 0x1100010 syslogd 34783 426344 1 0 3 0x100082 sbwait syslogd 47064 378844 1 0 3 0x100080 kqread resolvd 34942 53162 43795 77 3 0x100092 kqread dhcpleased 52829 451286 43795 77 3 0x100092 kqread dhcpleased 43795 493233 1 0 3 0x80 kqread dhcpleased 15378 22665 0 0 3 0x14200 bored smr 44479 74669 0 0 2 0x14200 zerothread 5428 468227 0 0 3 0x14200 aiodoned aiodoned 82777 404935 0 0 3 0x14200 syncer update 49162 436053 0 0 3 0x14200 cleaner cleaner 23241 396623 0 0 3 0x14200 reaper reaper 4831 76113 0 0 3 0x14200 pgdaemon pagedaemon 98033 74771 0 0 3 0x14200 bored viomb 5805 246051 0 0 3 0x40014200 acpi0 acpi0 30352 519276 0 0 3 0x40014200 idle1 76556 511910 0 0 3 0x14200 bored softnet3 40773 482425 0 0 3 0x14200 bored softnet2 94416 343394 0 0 3 0x14200 bored softnet1 14573 268523 0 0 2 0x14200 softnet0 13126 237946 0 0 3 0x14200 bored systqmp 35778 79983 0 0 3 0x14200 bored systq 11628 217971 0 0 3 0x14200 tmoslp softclockmp 92258 422032 0 0 3 0x40014200 tmoslp softclock 90969 119312 0 0 3 0x40014200 idle0 1 345607 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 41175 (syz-executor) thread 0xffff80002a03f970 (71890) exclusive rwlock vmmaplk r = 0 (0xfffffd806bd782b0) #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 82485 (syz-executor) thread 0xffff80002a03f460 (71440) exclusive rrwlock inode r = 0 (0xfffffd805c52f920) #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 ufs_direnter+0x993 sys/ufs/ufs/ufs_lookup.c:853 #6 ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1764 #7 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #8 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #9 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #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 kernel_lock &kernel_lock r = 0 (0xffffffff835d3e38) #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 ffs_truncate+0xcb6 #8 ufs_direnter+0x90a sys/ufs/ufs/ufs_lookup.c:847 #9 ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1764 #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 13912 (syz-executor) thread 0xffff80002a041968 (454273) exclusive rrwlock inode r = 0 (0xfffffd806dfb0b38) #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 (0xfffffd805c52fd60) #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 44451 (syslogd) thread 0xffff8000ffffd6d8 (467940) exclusive rrwlock inode r = 0 (0xfffffd806e4a82c0) #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 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10226 10159K 10305K 166960K 11749 0 pcb 17 12K 12K 166960K 88 0 rtable 239 15K 15K 166960K 1109 0 pf 37 18K 18K 166960K 110 0 ifaddr 43 7K 7K 166960K 149 0 ifgroup 55 2K 2K 166960K 164 0 counters 64 36K 36K 166960K 120 0 ioctlops 0 0K 4K 166960K 1536 0 iov 0 0K 12K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1373 86K 87K 166960K 1947 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 93K 166960K 812 0 sigio 0 0K 0K 166960K 8 0 proc 71 103K 128K 166960K 1225 0 subproc 104 6K 6K 166960K 416 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 53 0 in_multi 99 7K 7K 166960K 368 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 706 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 245 73K 91K 166960K 7662 0 UVM aobj 9 2K 2K 166960K 10 0 pinsyscall 42 84K 106K 166960K 2509 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 13 0 NDP 14 0K 2K 166960K 104 0 temp 39 6811K 6879K 166960K 38811 0 kqueue 13 20K 28K 166960K 66 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 120 107 0 104 1 0 1 1 0 8 0 rtentry 112 383 0 272 5 1 4 4 0 8 0 unpcb 144 265 0 246 2 1 1 2 0 8 0 syncache 336 5 0 5 3 3 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 88 0 81 3 2 1 2 0 8 0 arp 120 68 0 50 1 0 1 1 0 8 0 inpcb 336 438 0 428 2 0 2 2 0 8 0 nd6 136 97 0 72 1 0 1 1 0 8 0 kcovpl 48 32 0 24 1 0 1 1 0 8 0 ppxss 1168 2 0 2 2 2 0 1 0 8 0 pfstscr 40 3 0 3 1 1 0 1 0 8 0 pffrag 232 4 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 6 0 3 1 0 1 1 0 8 0 pfosfp 40 1434 0 1010 5 0 5 5 0 8 0 pfosfpen 112 1434 0 715 21 0 21 21 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 55 0 25 1 0 1 1 0 8 0 pfstkey 128 61 0 31 2 0 2 2 0 8 0 pfstate 376 59 0 29 4 0 4 4 0 8 0 pfrule 1344 24 0 16 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1524 0 1067 32 3 29 29 0 8 0 art_table 32 1525 0 1067 4 0 4 4 0 8 0 art_node 16 380 0 279 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2204 0 650 98 0 98 98 0 8 0 ffsino 272 2205 0 650 104 0 104 104 0 8 0 nchpl 144 2868 0 1149 64 0 64 64 0 8 0 uvmvnodes 80 2765 0 0 57 0 57 57 0 8 0 vnodes 216 2765 0 0 154 0 154 154 0 8 0 namei 1024 11606 0 11604 3 2 1 2 0 8 0 percpumem 16 74 0 28 1 0 1 1 0 8 0 kstatmem 264 80 0 56 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 17274 0 17274 10 9 1 8 1 8 1 plimitpl 152 171 0 153 1 0 1 1 0 8 0 sigapl 424 1065 0 1014 8 1 7 7 0 8 0 futexpl 64 5129 0 5124 4 3 1 1 0 8 0 knotepl 120 573 0 0 18 1 17 17 0 8 0 kqueuepl 216 92 0 83 1 0 1 1 0 8 0 pipepl 320 217 0 190 3 0 3 3 0 8 0 fdescpl 496 1045 0 1014 6 1 5 5 0 8 0 filepl 152 4576 0 4327 17 5 12 13 0 8 1 lockfpl 104 110 0 108 1 0 1 1 0 8 0 lockfspl 48 50 0 48 1 0 1 1 0 8 0 sessionpl 144 47 0 38 1 0 1 1 0 8 0 pgrppl 48 79 0 62 1 0 1 1 0 8 0 ucredpl 104 676 0 663 1 0 1 1 0 8 0 zombiepl 144 1015 0 1014 1 0 1 1 0 8 0 processpl 1160 1065 0 1014 5 1 4 5 0 8 0 procpl 648 1622 0 1561 7 1 6 7 0 8 0 sosppl 168 6 0 6 1 1 0 1 0 8 0 sockpl 664 813 0 781 4 0 4 4 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 257 0 0 33 0 33 33 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 321 0 0 18 0 18 18 0 8 0 bufpl 280 6296 0 124 441 0 441 441 0 8 0 anonpl 24 203225 0 199335 54 22 32 54 0 185 0 amapchunkpl 152 24372 0 23829 37 14 23 34 0 158 0 amappl16 200 4319 0 4297 10 8 2 6 0 8 0 amappl15 192 21 0 21 2 2 0 1 0 8 0 amappl14 184 166 0 154 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 1 0 1 0 8 0 amappl12 168 2074 0 2043 2 0 2 2 0 8 0 amappl11 160 54 0 39 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 146 0 146 1 1 0 1 0 8 0 amappl8 136 27 0 24 1 0 1 1 0 8 0 amappl7 128 170 0 158 1 0 1 1 0 8 0 amappl6 120 414 0 411 1 0 1 1 0 8 0 amappl5 112 252 0 239 1 0 1 1 0 8 0 amappl4 104 386 0 367 1 0 1 1 0 8 0 amappl3 96 4283 0 4179 3 0 3 3 0 8 0 amappl2 88 1307 0 1228 2 0 2 2 0 8 0 amappl1 80 11111 0 10523 16 2 14 15 0 8 0 amappl 88 7097 0 6914 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 9 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1045 0 1014 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1045 0 1014 1 0 1 1 0 8 0 vmmpekpl 168 10720 0 10670 3 0 3 3 0 8 0 vmmpepl 168 71637 0 69740 94 8 86 89 0 357 0 vmsppl 440 1044 0 1014 6 2 4 5 0 8 0 rwobjpl 56 25965 0 22233 53 0 53 53 0 8 0 pdppl 4096 2097 0 2028 135 62 73 85 0 8 4 pvpl 32 29418 0 0 239 1 238 238 0 265 0 pmappl 248 1044 0 1014 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 444 0 76 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace fifo_write(ffff80002a12aa50) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8065f78b48,ffff80002a12aae8,8,fffffd807f7d35b0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8065f78b48,ffff800029fe6c00,f9,0,1,a520d149ea244fa5,ffff80002a12ac10,fffffd8065f78b48,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a12ac10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd8067ff0990,ffff80002a12ad90,ffff80002a12adc0,ffff80002a12acc0,ffff800029fe6c00) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff80002a03f460,20001340,ffffff9c,20001440) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a12af40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a12af40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6b0ad99a40, 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(ffffffff835d3c30) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835d3c30) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff8000363d07e0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000363d07e0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77075d8501d0, 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(ffffffff835d3c30) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff835d3c30) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff8000363d07e0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000363d07e0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77075d8501d0, count: -7