uvm_fault(0xfffffd80701badc8, 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 65858 68727 0 0 0 0 syz-executor *412986 22274 0 0 0x4000000 1K syz-executor fifo_write(ffff80002a144850) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8067834100,ffff80002a1448e8,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8067834100,ffff800029fe6000,f7,0,1,c7f5e29a3957b562,ffff80002a144a10,fffffd8067834100,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a144a10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd805c288d00,ffff80002a144b90,ffff80002a144bc0,ffff80002a144ac0,ffff800029fe6000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800030dc2ce0,200001c0,3,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a144d40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a144d40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb29b725b5a0, 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(0xfffffd80701badc8, 0x8, 0, 1) -> e ddb{1}> trace fifo_write(ffff80002a144850) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8067834100,ffff80002a1448e8,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8067834100,ffff800029fe6000,f7,0,1,c7f5e29a3957b562,ffff80002a144a10,fffffd8067834100,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a144a10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd805c288d00,ffff80002a144b90,ffff80002a144bc0,ffff80002a144ac0,ffff800029fe6000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800030dc2ce0,200001c0,3,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a144d40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a144d40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb29b725b5a0, count: -8 ddb{1}> show registers rdi 0xfffffd8067834100 rsi 0x1 rbp 0xffff80002a144840 rbx 0xfffffd8067834100 rdx 0 rcx 0xffff800030dc2ce0 rax 0 r8 0 r9 0x1 r10 0xffff800029b7bff0 r11 0x5b1aa0f7e1630345 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a1448e8 r14 0xffff80002a144850 r15 0x1 rip 0xffffffff829b926e fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a144810 ss 0x10 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{1}> show proc PROC (syz-executor) tid=412986 pid=22274 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800030dc3c10,0xffff800030dc2048 process=0xffff8000ffffa8d8 user=0xffff80002a13f000, vmspace=0xfffffd80701badc8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68727 65858 16890 0 7 0 syz-executor 22274 382018 77885 0 2 0 syz-executor *22274 412986 77885 0 7 0x4000000 syz-executor 22274 121252 77885 0 2 0x4000000 syz-executor 77523 14540 77654 60929 2 0x10 syz-executor 77523 333450 77654 60929 3 0x4000090 netacc syz-executor 3760 50890 39911 0 3 0x80 nanoslp syz-executor 3760 110899 39911 0 3 0x4000080 kqread syz-executor 3760 452485 39911 0 3 0x4000080 fsleep syz-executor 50853 404215 24740 0 3 0x80 nanoslp syz-executor 50853 377916 24740 0 3 0x4000080 lockf syz-executor 50853 301226 24740 0 3 0x4000080 fsleep syz-executor 50853 179555 24740 0 3 0x4000080 fsleep syz-executor 39911 250453 15883 0 3 0x82 nanoslp syz-executor 23152 171234 15883 0 3 0x2 biowait syz-executor 72882 211200 15883 0 2 0x2 syz-executor 69105 94876 15883 0 3 0x82 nanoslp syz-executor 16890 401604 15883 0 3 0x82 nanoslp syz-executor 77654 467849 15883 0 3 0x82 nanoslp syz-executor 24740 2224 15883 0 3 0x82 nanoslp syz-executor 77885 381405 15883 0 3 0x82 nanoslp syz-executor 87676 351919 0 0 3 0x14200 acct acct 15463 59727 0 0 3 0x14200 bored sosplice 15883 281996 12058 0 3 0x82 kqread syz-executor 12058 51098 69204 0 3 0x10008a sigsusp ksh 69204 363186 55817 0 3 0x98 kqread sshd-session 55817 471433 59797 0 3 0x92 kqread sshd-session 64966 364857 1 0 3 0x100083 ttyin getty 59797 215742 1 0 3 0x88 kqread sshd 58540 198686 3274 74 3 0x1100092 bpf pflogd 3274 94176 1 0 3 0x80 sbwait pflogd 15982 135846 71121 73 2 0x1100010 syslogd 71121 111055 1 0 3 0x100082 sbwait syslogd 68426 387187 1 0 3 0x100080 kqread resolvd 72050 243794 87402 77 3 0x100092 kqread dhcpleased 86757 266868 87402 77 3 0x100092 kqread dhcpleased 87402 70524 1 0 3 0x80 kqread dhcpleased 86465 80068 0 0 3 0x14200 bored smr 83671 374052 0 0 2 0x14200 zerothread 76835 210109 0 0 3 0x14200 aiodoned aiodoned 57450 407882 0 0 3 0x14200 syncer update 19537 192041 0 0 3 0x14200 cleaner cleaner 92525 246054 0 0 3 0x14200 reaper reaper 72356 481234 0 0 3 0x14200 pgdaemon pagedaemon 14860 194427 0 0 3 0x14200 bored viomb 47567 227869 0 0 3 0x40014200 acpi0 acpi0 65363 332001 0 0 3 0x40014200 idle1 45474 313520 0 0 3 0x14200 bored softnet3 47478 96681 0 0 3 0x14200 bored softnet2 68225 195389 0 0 3 0x14200 bored softnet1 59751 217633 0 0 2 0x14200 softnet0 44999 154550 0 0 3 0x14200 bored systqmp 69803 461974 0 0 3 0x14200 bored systq 87924 321875 0 0 3 0x14200 tmoslp softclockmp 89172 414657 0 0 3 0x40014200 tmoslp softclock 92385 13046 0 0 3 0x40014200 idle0 1 418399 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 68727 (syz-executor) thread 0xffff800030dc2038 (65858) exclusive rwlock amaplk r = 0 (0xfffffd805f6120f0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvm_fault_check+0x521 sys/uvm/uvm_fault.c:782 #2 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd80701ba2b0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 Process 22274 (syz-executor) thread 0xffff800030dc2ce0 (412986) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff836156f0) #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 (0xfffffd807cb911b0) #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 23152 (syz-executor) thread 0xffff800030dc2548 (171234) exclusive rrwlock inode r = 0 (0xfffffd806de0c1b8) #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 (0xfffffd806bd685f0) #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 72882 (syz-executor) thread 0xffff8000ffff4f58 (211200) exclusive rrwlock inode r = 0 (0xfffffd807cb91a30) #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 (0xfffffd806dd42b40) #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 15982 (syslogd) thread 0xffff8000ffffd1c8 (135846) exclusive rrwlock inode r = 0 (0xfffffd806e49f0a0) #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:2927 #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10251 10394K 10508K 166960K 12392 0 pcb 18 15K 17K 166960K 361 0 rtable 231 16K 18K 166960K 1836 0 pf 42 19K 25K 166960K 187 0 ifaddr 42 7K 8K 166960K 243 0 ifgroup 63 2K 2K 166960K 279 0 sysctl 2 0K 0K 166960K 2 0 counters 68 36K 37K 166960K 178 0 ioctlops 0 0K 4K 166960K 1612 0 iov 0 0K 14K 166960K 96 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1534 96K 97K 166960K 2665 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 25 0 dirhash 15 2K 3K 166960K 30 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 93K 166960K 1409 0 sigio 0 0K 0K 166960K 16 0 proc 70 91K 140K 166960K 1845 0 subproc 104 6K 7K 166960K 689 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 106 0 in_multi 87 6K 7K 166960K 611 0 ether_multi 1 0K 0K 166960K 10 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 1117 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 228 72K 91K 166960K 12256 0 UVM aobj 16 6K 6K 166960K 19 0 pinsyscall 41 82K 110K 166960K 3639 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 26 0 NDP 14 0K 1K 166960K 173 0 temp 58 6819K 6885K 166960K 35764 0 kqueue 13 20K 30K 166960K 120 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 120 195 0 192 2 1 1 2 0 8 0 rtentry 112 617 0 516 5 1 4 4 0 8 0 unpcb 144 1011 0 992 15 9 6 6 0 8 5 syncache 336 4 0 4 3 3 0 1 0 8 0 tcpcb 808 252 0 243 7 5 2 5 0 8 0 arp 120 113 0 96 1 0 1 1 0 8 0 inpcb 336 1304 0 1283 19 16 3 8 0 8 0 nd6 136 161 0 138 1 0 1 1 0 8 0 pkpcb 40 5 0 5 3 2 1 1 0 8 1 kcovpl 48 53 0 45 1 0 1 1 0 8 0 ppxss 1168 4 0 4 3 3 0 1 0 8 0 pfstscr 40 1 0 0 1 0 1 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 4 0 2 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 20 1 21 0 8 1 pfrktable 1344 3 0 2 1 0 1 1 0 8 0 pfanchor 1288 1 0 1 1 1 0 1 0 8 0 pftag 88 5 0 3 1 0 1 1 0 8 0 pfstitem 24 94 0 66 1 0 1 1 0 8 0 pfstkey 128 98 0 70 2 0 2 2 0 8 0 pfstate 376 95 0 68 6 0 6 6 0 8 0 pfrule 1344 60 0 53 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 2437 0 2019 32 3 29 29 0 8 0 art_table 32 2439 0 2019 4 0 4 4 0 8 0 art_node 16 614 0 523 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 16 0 3 1 0 1 1 0 8 0 dirhash 1024 29 0 10 3 0 3 3 0 8 0 dino2pl 256 2820 0 1223 101 0 101 101 0 8 0 ffsino 272 2820 0 1223 107 0 107 107 0 8 0 nchpl 144 3910 0 2158 66 0 66 66 0 8 0 uvmvnodes 80 3964 0 0 81 0 81 81 0 8 0 vnodes 216 3964 0 0 221 0 221 221 0 8 0 namei 1024 18107 0 18105 4 3 1 1 0 8 0 percpumem 16 103 0 55 1 0 1 1 0 8 0 kstatmem 264 138 0 110 4 1 3 3 0 8 0 scxspl 216 31502 0 31501 15 12 3 8 1 8 2 plimitpl 152 223 0 205 1 0 1 1 0 8 0 sigapl 424 1619 0 1569 9 2 7 7 0 8 0 futexpl 64 9898 0 9895 6 5 1 1 0 8 0 knotepl 120 622 0 0 17 0 17 17 0 8 0 kqueuepl 216 201 0 191 2 1 1 2 0 8 0 pipepl 320 430 0 403 12 9 3 8 0 8 0 fdescpl 496 1599 0 1569 7 2 5 5 0 8 0 filepl 152 8980 0 8726 37 21 16 19 0 8 5 lockfpl 104 253 0 249 1 0 1 1 0 8 0 lockfspl 48 95 0 92 1 0 1 1 0 8 0 sessionpl 144 67 0 58 1 0 1 1 0 8 0 pgrppl 48 128 0 111 1 0 1 1 0 8 0 ucredpl 104 1176 0 1161 1 0 1 1 0 8 0 zombiepl 144 1570 0 1569 1 0 1 1 0 8 0 processpl 1160 1619 0 1569 6 2 4 5 0 8 0 procpl 648 2734 0 2676 8 2 6 7 0 8 0 srpgc 96 8 0 8 3 2 1 1 0 8 1 sockpl 664 2521 0 2480 39 24 15 15 0 8 10 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 244 0 0 31 0 31 31 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 482 0 0 25 0 25 25 0 8 0 bufpl 280 7988 0 1534 462 0 462 462 0 8 0 anonpl 24 329616 0 326188 100 30 70 76 0 185 36 amapchunkpl 152 39577 0 39099 36 4 32 34 0 158 11 amappl16 200 7582 0 7557 39 36 3 14 0 8 0 amappl15 192 19 0 19 1 1 0 1 0 8 0 amappl14 184 213 0 201 1 0 1 1 0 8 0 amappl13 176 18 0 17 1 0 1 1 0 8 0 amappl12 168 2980 0 2950 3 1 2 2 0 8 0 amappl11 160 63 0 49 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 1 0 1 0 8 0 amappl9 144 147 0 147 2 2 0 1 0 8 0 amappl8 136 28 0 26 1 0 1 1 0 8 0 amappl7 128 203 0 191 1 0 1 1 0 8 0 amappl6 120 634 0 631 1 0 1 1 0 8 0 amappl5 112 314 0 303 1 0 1 1 0 8 0 amappl4 104 456 0 437 1 0 1 1 0 8 0 amappl3 96 6670 0 6575 3 0 3 3 0 8 0 amappl2 88 1899 0 1820 3 1 2 3 0 8 0 amappl1 80 14299 0 13705 17 3 14 16 0 8 1 amappl 88 11532 0 11365 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 7 0 7 2 2 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 18 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1599 0 1569 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1599 0 1569 1 0 1 1 0 8 0 vmmpekpl 168 15548 0 15493 3 0 3 3 0 8 0 vmmpepl 168 106974 0 105116 114 23 91 97 0 357 5 vmsppl 440 1598 0 1569 6 2 4 5 0 8 0 rwobjpl 56 38286 0 33360 70 0 70 70 0 8 0 pdppl 4096 3205 0 3138 147 74 73 85 0 8 6 pvpl 32 31985 0 0 257 0 257 257 0 265 0 pmappl 248 1598 0 1569 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 491 0 109 12 0 12 12 0 8 1 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834adff0) 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(ffffffff836154e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836154e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a155e10,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+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(ffffffff836154e8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836154e8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80002a155ff0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a155ff0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70e3d26024c0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff834adff0) 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(ffffffff836154e8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836154e8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a155e10,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+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(ffffffff836154e8) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836154e8) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff80002a155ff0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a155ff0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70e3d26024c0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 fifo_write(ffff80002a144850) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8067834100,ffff80002a1448e8,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8067834100,ffff800029fe6000,f7,0,1,c7f5e29a3957b562,ffff80002a144a10,fffffd8067834100,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a144a10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd805c288d00,ffff80002a144b90,ffff80002a144bc0,ffff80002a144ac0,ffff800029fe6000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800030dc2ce0,200001c0,3,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a144d40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a144d40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb29b725b5a0, count: 7 ddb{1}> trace fifo_write(ffff80002a144850) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd8067834100,ffff80002a1448e8,8,fffffd807f7d3410) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd8067834100,ffff800029fe6000,f7,0,1,c7f5e29a3957b562,ffff80002a144a10,fffffd8067834100,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a144a10) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd805c288d00,ffff80002a144b90,ffff80002a144bc0,ffff80002a144ac0,ffff800029fe6000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff800030dc2ce0,200001c0,3,20000040) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a144d40) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a144d40) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb29b725b5a0, count: -8