iapetus# kgdb /boot/kernel/kernel.symbols /var/crash/vmcore.11 GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"] 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: drm0: on vgapci0 vgapci0: Reserved 0x100000 bytes for rid 0x10 type 3 at 0xf8100000 Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 01 fault virtual address = 0x0 fault code = supervisor write data, page not present instruction pointer = 0x8:0xffffffffa2df7d6a stack pointer = 0x10:0xffffffffa2cf4580 frame pointer = 0x10:0xffffffffa2cf45e0 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 = 920 (kldload) trap number = 12 panic: page fault cpuid = 1 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a panic() at panic+0x17a trap_fatal() at trap_fatal+0x29f trap_pfault() at trap_pfault+0x294 trap() at trap+0x2ea calltrap() at calltrap+0x8 --- trap 0xc, rip = 0xffffffffa2df7d6a, rsp = 0xffffffffa2cf4580, rbp = 0xffffffffa2cf45e0 --- drm_addmap() at drm_addmap+0x3ca drm_attach() at drm_attach+0x51c device_attach() at device_attach+0x69 bus_generic_driver_added() at bus_generic_driver_added+0x65 devclass_add_driver() at devclass_add_driver+0xd4 driver_module_handler() at driver_module_handler+0x8d module_register_init() at module_register_init+0xb0 linker_load_module() at linker_load_module+0x996 kern_kldload() at kern_kldload+0xaf kldload() at kldload+0x84 syscall() at syscall+0x254 Xfast_syscall() at Xfast_syscall+0xab --- syscall (304, FreeBSD ELF64, kldload), rip = 0x800683c6c, rsp = 0x7fffffffeb58, rbp = 0 --- Uptime: 26s Physical memory: 986 MB Dumping 86 MB: 71 55 39 23 7 #0 doadump () at pcpu.h:194 194 pcpu.h: No such file or directory. in pcpu.h (kgdb) bt #0 doadump () at pcpu.h:194 #1 0xffffffff804870b8 in boot (howto=260) at /usr/home/nox/src70/src/sys/kern/kern_shutdown.c:409 #2 0xffffffff80487517 in panic (fmt=Variable "fmt" is not available. ) at /usr/home/nox/src70/src/sys/kern/kern_shutdown.c:563 #3 0xffffffff806f4d8f in trap_fatal (frame=0xc, eva=Variable "eva" is not available. ) at /usr/home/nox/src70/src/sys/amd64/amd64/trap.c:724 #4 0xffffffff806f5174 in trap_pfault (frame=0xffffffffa2cf44d0, usermode=0) at /usr/home/nox/src70/src/sys/amd64/amd64/trap.c:641 #5 0xffffffff806f5b2a in trap (frame=0xffffffffa2cf44d0) at /usr/home/nox/src70/src/sys/amd64/amd64/trap.c:410 #6 0xffffffff806dac2e in calltrap () at /usr/home/nox/src70/src/sys/amd64/amd64/exception.S:169 #7 0xffffffffa2df7d6a in ?? () #8 0xffffffffa2cf45b0 in ?? () #9 0xffffff0003141008 in ?? () #10 0xffffff00034a51d8 in ?? () #11 0xffffff000349e600 in ?? () #12 0xffffff000349e600 in ?? () #13 0xffffff000126a800 in ?? () #14 0xffffff0001255d00 in ?? () #15 0xffffff00034a5000 in ?? () #16 0x0000000000002a02 in ?? () ---Type to continue, or q to quit--- #17 0xffffffffa2cf4630 in ?? () #18 0xffffffffa2cf4660 in ?? () #19 0xffffffffa2dfb7fc in ?? () #20 0xffffff0000000000 in ?? () #21 0xffffff0001255d88 in ?? () #22 0xffffffffa2e0a600 in ?? () #23 0xffffff00034a5148 in ?? () #24 0xffffff00034a51a8 in ?? () #25 0xffffff00034a5208 in ?? () #26 0xffffff00034a51d8 in ?? () #27 0xffffffff804a9069 in bus_print_child_footer (dev=Variable "dev" is not available. ) at /usr/home/nox/src70/src/sys/kern/subr_bus.c:3023 Previous frame inner to this frame (corrupt stack?) (kgdb) q zsh iapetus#