# kgdb -n 0 GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd"... Unread portion of the kernel message buffer: Kernel page fault with the following non-sleepable locks held: exclusive sleep mutex pmap (pmap) r = 0 (0xffffff0010794a60) locked @ /usr/src/sys/amd64/amd64/pmap.c:3819 exclusive sleep mutex vm page queue mutex (vm page queue mutex) r = 0 (0xffffffff8099b100) locked @ /usr/src/sys/amd64/amd64/pmap.c:3818 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x65 witness_warn() at witness_warn+0x2d3 trap() at trap+0x2e5 calltrap() at calltrap+0x8 --- trap 0xc, rip = 0xffffffff804f3dab, rsp = 0xffffff80ec36d9f0, rbp = 0xffffff80ec36da80 --- pmap_remove_pages() at pmap_remove_pages+0x29b vmspace_exit() at vmspace_exit+0x96 exit1() at exit1+0x376 sys_exit() at sys_exit+0xe syscall() at syscall+0x1d5 Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (1, FreeBSD ELF64, sys_exit), rip = 0x84047c, rsp = 0x7fffffffe2a8, rbp = 0x7fffffffe2e0 --- Fatal trap 12: page fault while in kernel mode cpuid = 2; apic id = 02 fault virtual address = 0x10010 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff804f3dab stack pointer = 0x28:0xffffff80ec36d9f0 frame pointer = 0x28:0xffffff80ec36da80 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 52423 (cc1) trap number = 12 panic: page faultVNASSERT failed cpuid = 1 0xffffff0010f8b938: KDB: stack backtrace:tag zfs, type VDIR usecount 2, writecount 0, refcount 3 mountedhere 0 flags () v_object 0xffffff003e96b288 ref 0 pages 0d block type zfs: UNLOCKED_ trace_self_wrapper() at db_trace_self_wrapper+0x2a panic() at panic+0x182 trap_fatal() at trap_fatal+0x2ad trap() at trap+0x2fc calltrap() at calltrap+0x8 --- trap 0xc, rip = 0xffffffff804f3dab, rsp = 0xffffff80ec36d9f0, rbp = 0xffffff80ec36da80 --- pmap_remove_pages() at pmap_remove_pages+0x29b vmspace_exit() at vmspace_exit+0x96 exit1() at exit1+0x376 sys_exit() at sys_exit+0xe syscall() at syscall+0x1d5 Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (1, FreeBSD ELF64, sys_exit), rip = 0x84047c, rsp = 0x7fffffffe2a8, rbp = 0x7fffffffe2e0 --- interrupt total irq1: atkbd0 3 irq16: hdac1 ohci+ 57 irq17: ehci0 2 irq18: ohci2 ohci+ 6 irq19: fwohci0+ 100 irq21: pcm0 1 irq22: ahci0 27491 cpu0: timer 736892 irq257: hdac0 1 irq258: re0 32033 cpu2: timer 710963 cpu1: timer 710471 cpu3: timer 711037 Total 2929057 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a hardclock() at hardclock+0x117 lapic_handle_timer() at lapic_handle_timer+0xc9 Xtimerint() at Xtimerint+0x8c --- interrupt, rip = 0xffffffff80305870, rsp = 0xffffff80ec3193d0, rbp = 0xffffff80ec3194d0 --- panic() at panic+0x90 _vn_lock() at _vn_lock+0xec cache_lookup() at cache_lookup+0x4fc vfs_cache_lookup() at vfs_cache_lookup+0xc0 VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x95 lookup() at lookup+0x414 namei() at namei+0x4d3 vn_open_cred() at vn_open_cred+0x1e8 kern_openat() at kern_openat+0x179 syscall() at syscall+0x1d5 Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (5, FreeBSD ELF64, open), rip = 0x84eaac, rsp = 0x7fffffffdd78, rbp = 0x800b62a10 --- KDB: enter: watchdog timeout Physical memory: 8178 MB Dumping 2063 MB: 2048 2032 2016 2000 1984 1968 1952 1936 1920 1904 1888 1872 1856 1840 1824 1808 1792 1776 1760 1744 1728 1712 1696 1680 1664 1648 1632 1616 1600 1584 1568 1552 1536 1520 1504 1488 1472 1456 1440 1424 1408 1392 1376 1360 1344 1328 1312 1296 1280 1264 1248 1232 1216 1200 1184 1168 1152 1136 1120 1104 1088 1072 1056 1040 1024 1008 992 976 960 944 928 912 896 880 864 848 832 816 800 784 768 752 736 720 704 688 672 656 640 624 608 592 576 560 544 528 512 496 480 464 448 432 416 400 384 368 352 336 320 304 288 272 256 240 224 208 192 176 160 144 128 112 96 80 64 48 32 16 Reading symbols from /boot/kernel/zfs.ko...Reading symbols from /boot/kernel/zfs.ko.symbols...done. done. Loaded symbols for /boot/kernel/zfs.ko Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from /boot/kernel/opensolaris.ko.symbols...done. done. Loaded symbols for /boot/kernel/opensolaris.ko Reading symbols from /boot/kernel/krpc.ko...Reading symbols from /boot/kernel/krpc.ko.symbols...done. done. Loaded symbols for /boot/kernel/krpc.ko Reading symbols from /boot/kernel/snd_maestro3.ko...Reading symbols from /boot/kernel/snd_maestro3.ko.symbols...done. done. Loaded symbols for /boot/kernel/snd_maestro3.ko Reading symbols from /boot/modules/vboxdrv.ko...done. Loaded symbols for /boot/modules/vboxdrv.ko Reading symbols from /boot/kernel/nfsclient.ko...Reading symbols from /boot/kernel/nfsclient.ko.symbols...done. done. Loaded symbols for /boot/kernel/nfsclient.ko Reading symbols from /boot/kernel/nfslockd.ko...Reading symbols from /boot/kernel/nfslockd.ko.symbols...done. done. Loaded symbols for /boot/kernel/nfslockd.ko Reading symbols from /boot/kernel/nullfs.ko...Reading symbols from /boot/kernel/nullfs.ko.symbols...done. done. Loaded symbols for /boot/kernel/nullfs.ko #0 doadump () at pcpu.h:223 223 __asm __volatile("movq %%gs:0,%0" : "=r" (td)); (kgdb) bt #0 doadump () at pcpu.h:223 #1 0xffffffff801a995c in db_fncall (dummy1=Variable "dummy1" is not available. ) at /usr/src/sys/ddb/db_command.c:548 #2 0xffffffff801a9c91 in db_command (last_cmdp=0xffffffff807a5460, cmd_table=Variable "cmd_table" is not available. ) at /usr/src/sys/ddb/db_command.c:445 #3 0xffffffff801a9ee0 in db_command_loop () at /usr/src/sys/ddb/db_command.c:498 #4 0xffffffff801abec9 in db_trap (type=Variable "type" is not available. ) at /usr/src/sys/ddb/db_main.c:229 #5 0xffffffff80333f90 in kdb_trap (type=3, code=0, tf=0xffffff80ec319200) at /usr/src/sys/kern/subr_kdb.c:534 #6 0xffffffff804fbad6 in trap (frame=0xffffff80ec319200) at /usr/src/sys/amd64/amd64/trap.c:613 #7 0xffffffff804e0373 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:224 #8 0xffffffff8033416d in kdb_enter (why=0xffffffff8055aba7 "watchdog", msg=0xa
) at cpufunc.h:63 #9 0xffffffff804e6f09 in lapic_handle_timer (frame=0xffffff80ec319320) at /usr/src/sys/amd64/amd64/local_apic.c:703 #10 0xffffffff804e0eac in Xtimerint () at apic_vector.S:103 #11 0xffffffff80305870 in panic (fmt=0xffffffff805dafd0 "vn_lock called with no locktype.") at /usr/src/sys/kern/kern_shutdown.c:526 #12 0xffffffff803a3aec in _vn_lock (vp=Variable "vp" is not available. ) at /usr/src/sys/kern/vfs_vnops.c:883 #13 0xffffffff8038580c in cache_lookup (dvp=0xffffff0010f8b938, vpp=0xffffff80ec319a30, cnp=0xffffff80ec319a58) at /usr/src/sys/kern/vfs_cache.c:567 #14 0xffffffff80385ab0 in vfs_cache_lookup (ap=Variable "ap" is not available. ) at /usr/src/sys/kern/vfs_cache.c:881 #15 0xffffffff80542ca5 in VOP_LOOKUP_APV (vop=0xffffffff80be8b80, a=0xffffff80ec319690) at vnode_if.c:123 #16 0xffffffff8038c6d4 in lookup (ndp=0xffffff80ec319a00) at vnode_if.h:54 #17 0xffffffff8038d623 in namei (ndp=0xffffff80ec319a00) at /usr/src/sys/kern/vfs_lookup.c:259 #18 0xffffffff803a31d8 in vn_open_cred (ndp=0xffffff80ec319a00, flagp=0xffffff80ec31994c, cmode=420, vn_open_flags=Variable "vn_open_flags" is not available. ) at /usr/src/sys/kern/vfs_vnops.c:188 #19 0xffffffff803a0f99 in kern_openat (td=0xffffff0005b96390, fd=-100, path=0x800b62a10
, pathseg=Variable "pathseg" is not available. ) at /usr/src/sys/kern/vfs_syscalls.c:1084 #20 0xffffffff804fb495 in syscall (frame=0xffffff80ec319c80) at /usr/src/sys/amd64/amd64/trap.c:984 #21 0xffffffff804e0651 in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:373 #22 0x000000000084eaac in ?? () Previous frame inner to this frame (corrupt stack?)