uvm_fault(0xfffffd807daf3538, 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 *278905 16048 32767 0x10 0x4000000 1K syz-executor 80907 11762 0 0x14000 0x200 0 reaper fifo_write(ffff80002a37dd90) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80638bdcd0,ffff80002a37de28,8,fffffd807f7d3000) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80638bdcd0,ffff800029fe7800,208,0,1,f5ec2dd45ebc541c,ffff80002a37df50,fffffd80638bdcd0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a37df50) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80700c8020,ffff80002a37e0d0,ffff80002a37e100,ffff80002a37e000,ffff800029fe7800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371cefc8,20000840,ffffff9c,200005c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a37e280) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a37e280) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb36d39ef1e0, 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(0xfffffd807daf3538, 0x8, 0, 1) -> e ddb{1}> trace fifo_write(ffff80002a37dd90) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80638bdcd0,ffff80002a37de28,8,fffffd807f7d3000) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80638bdcd0,ffff800029fe7800,208,0,1,f5ec2dd45ebc541c,ffff80002a37df50,fffffd80638bdcd0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a37df50) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80700c8020,ffff80002a37e0d0,ffff80002a37e100,ffff80002a37e000,ffff800029fe7800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371cefc8,20000840,ffffff9c,200005c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a37e280) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a37e280) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb36d39ef1e0, count: -8 ddb{1}> show registers rdi 0xfffffd80638bdcd0 rsi 0x24c8 __ALIGN_SIZE+0x14c8 rbp 0xffff80002a37dd80 rbx 0xfffffd80638bdcd0 rdx 0xffff80002f3d9000 rcx 0x24c7 __ALIGN_SIZE+0x14c7 rax 0 r8 0 r9 0x1 r10 0xffff800029b7bff0 r11 0xdb19336d5fac69e2 r12 0x4000 __ALIGN_SIZE+0x3000 r13 0xffff80002a37de28 r14 0xffff80002a37dd90 r15 0x1 rip 0xffffffff8299c29e fifo_write+0x6e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a37dd50 ss 0x10 fifo_write+0x6e: movq 0x8(%rax),%r15 ddb{1}> show proc PROC (syz-executor) tid=278905 pid=16048 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=80, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371c4ad0,0xffff8000371cf9f8 process=0xffff8000371a5b48 user=0xffff80002a379000, vmspace=0xfffffd807daf3538 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 46901 180688 29854 32767 3 0x3810 suspend syz-executor 46901 500558 29854 32767 2 0x4081810 syz-executor 16048 167215 48275 32767 2 0x10 syz-executor *16048 278905 48275 32767 7 0x4000010 syz-executor 16048 178992 48275 32767 2 0x4000010 syz-executor 85973 168326 86940 32767 2 0x10 syz-executor 85973 28794 86940 32767 3 0x4000090 kqread syz-executor 85973 231274 86940 32767 3 0x4000090 netacc syz-executor 85973 54440 86940 32767 3 0x4000090 fsleep syz-executor 6720 55166 29035 32767 3 0x90 nanoslp syz-executor 6720 288888 29035 32767 3 0x4000090 kqread syz-executor 6720 15661 29035 32767 3 0x4000090 netacc syz-executor 6720 194977 29035 32767 3 0x4000090 fsleep syz-executor 29854 313374 65061 32767 3 0x90 nanoslp syz-executor 65061 197678 164 0 3 0x82 wait syz-executor 62150 187936 95766 32767 2 0x10 syz-executor 95766 513831 164 0 3 0x82 wait syz-executor 48275 361049 81195 32767 3 0x90 nanoslp syz-executor 81195 354570 164 0 3 0x82 wait syz-executor 49711 114649 48187 32767 3 0x90 nanoslp syz-executor 48187 93334 164 0 3 0x82 wait syz-executor 86940 174217 3916 32767 3 0x90 nanoslp syz-executor 3916 436588 164 0 3 0x82 wait syz-executor 97160 487995 91855 32767 3 0x10 biowait syz-executor 91855 387471 164 0 3 0x82 wait syz-executor 35935 252540 87259 32767 2 0x10 syz-executor 87259 53899 164 0 3 0x82 wait syz-executor 29035 357445 58675 32767 3 0x90 nanoslp syz-executor 58675 355979 164 0 3 0x82 wait syz-executor 2918 133699 0 0 3 0x14200 bored sosplice 164 53359 42604 0 3 0x82 kqread syz-executor 42604 259896 28808 0 3 0x10008a sigsusp ksh 28808 379859 47876 0 3 0x98 kqread sshd-session 47876 207257 93495 0 3 0x92 kqread sshd-session 27618 118537 1 0 3 0x100083 ttyin getty 93495 465399 1 0 3 0x88 kqread sshd 50831 420148 76089 73 3 0x1100090 kqread syslogd 76089 170519 1 0 3 0x100082 sbwait syslogd 9086 122175 1 0 3 0x100080 kqread resolvd 1962 433377 43813 77 3 0x100092 kqread dhcpleased 72677 441825 43813 77 3 0x100092 kqread dhcpleased 43813 90959 1 0 3 0x80 kqread dhcpleased 38346 268850 0 0 3 0x14200 bored smr 27136 479937 0 0 2 0x14200 zerothread 70707 300086 0 0 3 0x14200 aiodoned aiodoned 2968 425941 0 0 3 0x14200 syncer update 41530 223945 0 0 3 0x14200 cleaner cleaner 11762 80907 0 0 7 0x14200 reaper 20577 211717 0 0 3 0x14200 pgdaemon pagedaemon 59487 263524 0 0 3 0x14200 bored viomb 95446 296762 0 0 3 0x40014200 acpi0 acpi0 89442 276065 0 0 3 0x40014200 idle1 88647 385625 0 0 3 0x14200 bored softnet3 60725 475123 0 0 3 0x14200 bored softnet2 1224 158884 0 0 3 0x14200 bored softnet1 80375 296805 0 0 3 0x14200 bored softnet0 37123 174 0 0 3 0x14200 bored systqmp 45572 297532 0 0 3 0x14200 bored systq 58550 320287 0 0 3 0x14200 tmoslp softclockmp 25771 407243 0 0 2 0x40014200 softclock 93380 389167 0 0 3 0x40014200 idle0 1 512127 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &(curpg)->mdpage.pv_mtx r = 0 (0xfffffd8006f43b18) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_remove_ptes+0x297 sys/arch/amd64/amd64/pmap.c:1706 #4 pmap_do_remove+0x533 sys/arch/amd64/amd64/pmap.c:1915 #5 uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1865 #6 uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498 #7 uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 #8 reaper+0x246 sys/kern/kern_exit.c:481 #9 proc_trampoline+0x10 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807d7d59c8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_do_remove+0xa9 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:432 [inline] #3 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1819 #4 uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1865 #5 uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498 #6 uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 #7 reaper+0x246 sys/kern/kern_exit.c:481 #8 proc_trampoline+0x10 Process 16048 (syz-executor) thread 0xffff8000371cefc8 (278905) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8355de48) #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 (0xfffffd8063ddda38) #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 97160 (syz-executor) thread 0xffff80003439d970 (487995) exclusive rrwlock inode r = 0 (0xfffffd805aab8e70) #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 (0xfffffd805a602f88) #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 35935 (syz-executor) thread 0xffff8000371c5a00 (252540) exclusive rrwlock inode r = 0 (0xfffffd8063ddd818) #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 (0xfffffd80735dd2c0) #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 11762 (reaper) thread 0xffff800029fd91c0 (80907) exclusive rwlock vmmaplk r = 0 (0xfffffd806a363998) #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_map_teardown+0x5e sys/uvm/uvm_map.c:2466 #4 uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 #5 reaper+0x246 sys/kern/kern_exit.c:481 #6 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10211 10028K 10036K 166960K 12557 0 pcb 17 18K 20K 166960K 23 0 rtable 250 7K 7K 166960K 14343 0 pf 31 16K 16K 166960K 889 0 ifaddr 42 11K 11K 166960K 1736 0 ifgroup 50 2K 2K 166960K 1752 0 sysctl 4 1K 3K 166960K 11 0 counters 64 36K 36K 166960K 908 0 ioctlops 0 0K 2K 166960K 745 0 iov 0 0K 18K 166960K 1568 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 91K 92K 166960K 11426 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 288 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 143 0 dirhash 15 2K 4K 166960K 351 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 22 81K 161K 166960K 19502 0 sigio 0 0K 0K 166960K 534 0 proc 56 78K 176K 166960K 13759 0 subproc 104 6K 12K 166960K 7397 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 4230 0 in_multi 99 7K 8K 166960K 5403 0 ether_multi 1 0K 0K 166960K 109 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 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 8256 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 264 75K 131K 166960K 155301 0 UVM aobj 131 8K 8K 166960K 143 0 pinsyscall 43 86K 128K 166960K 31500 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1087 0 NDP 11 0K 2K 166960K 1288 0 temp 75 6824K 6952K 166960K 132592 0 kqueue 15 24K 34K 166960K 2496 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 2378 0 2375 9 8 1 3 0 8 0 rtentry 112 4889 0 4771 12 8 4 4 0 8 0 unpcb 144 15615 0 15598 92 86 6 7 0 8 5 syncache 336 91 0 91 29 29 0 1 0 8 0 tcpqe 32 43 0 43 22 22 0 1 0 8 0 tcpcb 808 9618 0 9604 142 137 5 14 0 8 2 arp 120 869 0 850 1 0 1 1 0 8 0 ipq 40 78 0 73 4 3 1 1 0 8 0 ipqe 40 710 0 704 4 3 1 1 0 8 0 inpcb 336 25078 0 25058 197 189 8 18 0 8 4 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 2 0 2 1 1 0 1 0 8 0 nd6 136 1431 0 1400 4 2 2 2 0 8 0 kcovpl 48 569 0 561 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 19929 0 19455 207 175 32 33 0 8 0 art_table 32 19930 0 19455 11 6 5 5 0 8 0 art_node 16 4888 0 4780 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 141 0 131 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 250 0 227 16 12 4 4 0 8 1 dino2pl 256 22690 0 19871 179 2 177 177 0 8 0 ffsino 272 22690 0 19871 189 0 189 189 0 8 0 nchpl 144 41004 0 38345 99 0 99 99 0 8 0 uvmvnodes 80 9934 0 0 203 0 203 203 0 8 0 vnodes 216 9934 0 0 552 0 552 552 0 8 0 namei 1024 189733 0 189731 32 31 1 2 0 8 0 percpumem 16 468 0 422 1 0 1 1 0 8 0 kstatmem 264 866 0 844 3 1 2 2 0 8 0 scxspl 216 229547 0 229546 66 63 3 8 1 8 2 plimitpl 152 5569 0 5543 2 0 2 2 0 8 0 sigapl 424 18673 0 18619 21 14 7 9 0 8 0 futexpl 64 191787 0 191785 32 31 1 1 0 8 0 knotepl 120 1479 0 0 19 1 18 19 0 8 0 kqueuepl 216 5417 0 5405 56 54 2 5 0 8 1 pipepl 320 3893 0 3866 45 37 8 13 0 8 5 fdescpl 496 18654 0 18620 31 26 5 7 0 8 0 filepl 152 123853 0 123605 97 76 21 22 0 8 8 lockfpl 104 4141 0 4138 3 2 1 2 0 8 0 lockfspl 48 1261 0 1258 1 0 1 1 0 8 0 sessionpl 144 454 0 438 1 0 1 1 0 8 0 pgrppl 48 1271 0 1247 1 0 1 1 0 8 0 ucredpl 104 23190 0 23171 1 0 1 1 0 8 0 zombiepl 144 18621 0 18619 1 0 1 1 0 8 0 processpl 1160 18673 0 18619 18 13 5 6 0 8 0 procpl 648 39925 0 39861 23 16 7 7 0 8 0 srpgc 96 16 0 16 9 9 0 1 0 8 0 sosppl 168 244 0 244 32 31 1 1 0 8 1 sockpl 664 43362 0 43324 316 304 12 21 0 8 7 mcl64k 65536 14 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 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 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 580 0 0 34 14 20 34 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 7250 0 0 402 0 402 402 0 8 0 bufpl 280 31997 0 22058 711 0 711 711 0 8 0 anonpl 24 2310196 0 2300099 344 251 93 107 0 185 0 amapchunkpl 152 500894 0 500162 174 135 39 45 0 158 5 amappl16 200 48288 0 48031 417 387 30 31 0 8 0 amappl15 192 17 0 17 6 6 0 1 0 8 0 amappl14 184 978 0 968 1 0 1 1 0 8 0 amappl13 176 23 0 20 1 0 1 1 0 8 0 amappl12 168 26101 0 26066 10 8 2 3 0 8 0 amappl11 160 50 0 40 1 0 1 1 0 8 0 amappl10 152 42 0 42 2 2 0 1 0 8 0 amappl9 144 142 0 141 2 1 1 1 0 8 0 amappl8 136 25 0 22 1 0 1 1 0 8 0 amappl7 128 970 0 959 1 0 1 1 0 8 0 amappl6 120 4378 0 4376 1 0 1 1 0 8 0 amappl5 112 1838 0 1828 1 0 1 1 0 8 0 amappl4 104 1626 0 1609 1 0 1 1 0 8 0 amappl3 96 88446 0 88338 7 3 4 4 0 8 0 amappl2 88 19927 0 19845 3 0 3 3 0 8 0 amappl1 80 93971 0 93433 19 4 15 16 0 8 0 amappl 88 150710 0 150501 12 6 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 18654 0 18620 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18654 0 18620 1 0 1 1 0 8 0 vmmpekpl 168 154431 0 154374 6 2 4 5 0 8 0 vmmpepl 168 1120614 0 1118398 319 204 115 117 0 357 0 vmsppl 440 18653 0 18619 11 6 5 6 0 8 0 rwobjpl 56 291078 0 279892 192 30 162 162 0 8 0 pdppl 4096 37315 0 37238 1307 1224 83 115 0 8 6 pvpl 32 50435 0 0 402 1 401 402 0 265 0 pmappl 248 18653 0 18619 17 14 3 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2745 0 1815 27 0 27 27 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8348fff0) 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 uvm_pageclean(fffffd800720d9c0) at uvm_pageclean+0x4bf sys/uvm/uvm_page.c:1006 uvm_anfree_list(fffffd806ebec4c8,0) at uvm_anfree_list+0x210 sys/uvm/uvm_anon.c:116 amap_wipeout(fffffd804f665cc8) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5040,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806a3638a8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806a3638a8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd91c0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff8348fff0) 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 uvm_pageclean(fffffd800720d9c0) at uvm_pageclean+0x4bf sys/uvm/uvm_page.c:1006 uvm_anfree_list(fffffd806ebec4c8,0) at uvm_anfree_list+0x210 sys/uvm/uvm_anon.c:116 amap_wipeout(fffffd804f665cc8) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5040,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806a3638a8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806a3638a8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd91c0) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15 fifo_write(ffff80002a37dd90) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80638bdcd0,ffff80002a37de28,8,fffffd807f7d3000) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80638bdcd0,ffff800029fe7800,208,0,1,f5ec2dd45ebc541c,ffff80002a37df50,fffffd80638bdcd0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a37df50) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80700c8020,ffff80002a37e0d0,ffff80002a37e100,ffff80002a37e000,ffff800029fe7800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371cefc8,20000840,ffffff9c,200005c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a37e280) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a37e280) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb36d39ef1e0, count: 7 ddb{1}> trace fifo_write(ffff80002a37dd90) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd80638bdcd0,ffff80002a37de28,8,fffffd807f7d3000) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd80638bdcd0,ffff800029fe7800,208,0,1,f5ec2dd45ebc541c,ffff80002a37df50,fffffd80638bdcd0,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a37df50) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd80700c8020,ffff80002a37e0d0,ffff80002a37e100,ffff80002a37e000,ffff800029fe7800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371cefc8,20000840,ffffff9c,200005c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a37e280) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a37e280) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb36d39ef1e0, count: -8