| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | # crash vmlinux-3.0.8-0.11-ppc64 vmcore crash 5.1.9 Copyright (C) 2002-2011 Red Hat, Inc. Copyright (C) 2004, 2005, 2006 IBM Corporation Copyright (C) 1999-2006 Hewlett-Packard Co Copyright (C) 2005, 2006 Fujitsu Limited Copyright (C) 2006, 2007 VA Linux Systems Japan K.K. Copyright (C) 2005 NEC Corporation Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc. Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc. This program 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. Enter "help copying" to see the conditions. This program has absolutely no warranty. Enter "help warranty" for details. GNU gdb (GDB) 7.0 Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "powerpc64-unknown-linux-gnu"... KERNEL: vmlinux-3.0.8-0.11-ppc64 DUMPFILE: vmcore CPUS: 40 DATE: Wed Nov 16 20:17:11 2011 UPTIME: 10:37:23 LOAD AVERAGE: 60.00, 60.00, 60.00 TASKS: 811 NODENAME: eellp1 RELEASE: 3.0.8-0.11-ppc64 VERSION: #1 SMP Thu Nov 10 16:28:46 UTC 2011 (3cea58b) MACHINE: ppc64 (3550 Mhz) MEMORY: 4 GB PANIC: "Oops: Kernel access of bad area, sig: 11 [#1]" (check log for details) PID: 5563 COMMAND: "sh" TASK: c0000000faac3700 [THREAD_INFO: c0000000f8ce0000] CPU: 36 STATE: TASK_RUNNING (PANIC) crash> |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | crash> bt PID: 5563 TASK: c0000000faac3700 CPU: 36 COMMAND: "sh" #0 [c0000000f8ce31b0] .crash_kexec at c0000000001039f8 #1 [c0000000f8ce33b0] .die at c000000000020158 #2 [c0000000f8ce3450] .bad_page_fault at c000000000045004 #3 [c0000000f8ce34d0] handle_page_fault at c000000000005ec8 Data Access error [300] exception frame: R0: 0000000000130000 R1: c0000000f8ce37c0 R2: c000000000f876d8 R3: c000000001224dc8 R4: 0000000000000001 R5: 0000000000000000 R6: cfffffffffffffff R7: 0000000002220000 R8: 2ffffffff1f10000 R9: d00000000e0f0000 R10: 0000000000000000 R11: 0000000100000000 R12: 0000000082002424 R13: c000000001f06c00 R14: 000000001003e270 R15: 0000000000000001 R16: 0000000000000001 R17: 0000000000000000 R18: 0000000000000000 R19: c0000000f820b4b8 R20: c0000000f8ce3df8 R21: c000000000fe2400 R22: 00000fffb53d0000 R23: fffffffffffff000 R24: 0000000000000400 R25: 000000000000ed99 R26: 0000000000002000 R27: 0000000000002e58 R28: c000000001224dc8 R29: c000000001224dc0 R30: c000000000ef2658 R31: c0000000f8ce39a0 NIP: c000000000255900 MSR: 8000000000009032 OR3: c000000000005278 CTR: c000000000263a08 LR: c0000000002558dc XER: 0000000000000001 CCR: 0000000022002444 MQ: 0000000000000001 DAR: 0000000100000008 DSISR: 0000000040000000 Syscall Result: 0000000000000000 ..... #4 [c0000000f8ce37c0] .get_vmalloc_info at c000000000255900 [Link Register ] [c0000000f8ce37c0] .get_vmalloc_info at c0000000002558dc (un reliable) #5 [c0000000f8ce3850] .meminfo_proc_show at c000000000263ad8 #6 [c0000000f8ce3b40] .seq_read at c00000000020aa44 #7 [c0000000f8ce3c30] .proc_reg_read at c000000000258ccc #8 [c0000000f8ce3ce0] .vfs_read at c0000000001dee60 #9 [c0000000f8ce3d80] .sys_read at c0000000001df06c #10 [c0000000f8ce3e30] syscall_exit at c0000000000097ec syscall [c01] exception frame: R0: 0000000000000003 R1: 00000ffff3cceb60 R2: 00000fffb5305c40 R3: 0000000000000008 R4: 00000fffb53d0000 R5: 0000000000000400 R6: 0000000000000001 R7: 00000fffb5249f88 R8: 800000000200f032 R9: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 00000fffb50b8110 NIP: 00000fffb523d0c4 MSR: 800000000200f032 OR3: 0000000000000008 CTR: 00000fffb51dae70 LR: 00000fffb51daeac XER: 0000000000000001 CCR: 0000000044002422 MQ: 0000000000000001 DAR: 00000fffb51dcd60 DSISR: 0000000040000000 Syscall Result: 00000fffb53d0000 Crash> |
| 1 2 3 | crash> dis -l c000000000255900 /usr/src/debug/kernel-ppc64-3.0.8/linux-3.0/fs/proc/mmu.c: 47 0xc000000000255900 <.get_vmalloc_info+112>: ld r10,8(r11) |
| 1 2 3 4 5 6 | 21 void get_vmalloc_info(struct vmalloc_info *vmi) 22 { 23 struct vm_struct *vma; …… 46 for (vma = vmlist; vma; vma = vma->next) { 47 unsigned long addr = (unsigned long) vma->addr; |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 | crash> struct -o vm_struct struct vm_struct { [0] struct vm_struct *next; [8] void *addr; [16] long unsigned int size; [24] long unsigned int flags; [32] struct page **pages; [40] unsigned int nr_pages; [48] phys_addr_t phys_addr; [56] void *caller; } SIZE: 64 crash> |
| 1 2 3 | crash> struct vm_struct 0000000100000000 struct: invalid kernel virtual address: 0000000100000000 crash> |
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