Can't open i386 vmcore with crash on 2.6.20-rc2 kernels

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Dave,

I can't open vmcore for 2.6.20-rc2 vanilla kernel with crash. I am using
latest crash version 4.0-3.16.

******************************************************************************
crash 4.0-3.16
Copyright (C) 2002, 2003, 2004, 2005, 2006  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  VA Linux Systems Japan K.K.
Copyright (C) 2005  NEC Corporation
Copyright (C) 1999, 2002  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 6.1
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 "i686-pc-linux-gnu"...

WARNING: invalid linux_banner pointer: 756e694c
crash: vmlinux and vmcore do not match!

Usage:
  crash [-h [opt]][-v][-s][-i file][-d num] [-S] [mapfile] [namelist] [dumpfile]
Enter "crash -h" for details.
******************************************************************************

Looks like address of linux_banner is being interpreted wrongly.

Following are the vmcore program headers.

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  NOTE           0x0000f4 0x00000000 0x00000000 0x00290 0x00290     0
  LOAD           0x000384 0xc0000000 0x00000000 0xa0000 0xa0000 RWE 0
  LOAD           0x0a0384 0xc0100000 0x00100000 0xf00000 0xf00000 RWE 0
  LOAD           0xfa0384 0xc9000000 0x09000000 0x2f000000 0x2f000000 RWE 0
  LOAD           0x2ffa0384 0xffffffff 0x38000000 0x9ffb0580 0x9ffb0580 RWE 0
  LOAD           0xcff50904 0xffffffff 0x00000000 0x28000000 0x28000000 RWE 0

I am also pasting below "crash -d7 vmlinux vmcore" output.

crash 4.0-3.16
Copyright (C) 2002, 2003, 2004, 2005, 2006  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  VA Linux Systems Japan K.K.
Copyright (C) 2005  NEC Corporation
Copyright (C) 1999, 2002  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.

vmcore_data:
                  flags: a0 (KDUMP_LOCAL|KDUMP_ELF32)
                   ndfd: 3
                    ofp: 456764c0
            header_size: 900
   num_pt_load_segments: 5
     pt_load_segment[0]:
            file_offset: 384
             phys_start: 0
               phys_end: a0000
              zero_fill: 0
     pt_load_segment[1]:
            file_offset: a0384
             phys_start: 100000
               phys_end: 1000000
              zero_fill: 0
     pt_load_segment[2]:
            file_offset: fa0384
             phys_start: 9000000
               phys_end: 38000000
              zero_fill: 0
     pt_load_segment[3]:
            file_offset: 2ffa0384
             phys_start: 38000000
               phys_end: d7fb0580
              zero_fill: 0
     pt_load_segment[4]:
            file_offset: cff50904
             phys_start: 0
               phys_end: 28000000
              zero_fill: 0
             elf_header: 84056f8
                  elf32: 84056f8
                notes32: 840572c
                 load32: 840574c
                  elf64: 0
                notes64: 0
                 load64: 0
            nt_prstatus: 84057ec
            nt_prpsinfo: 0
          nt_taskstruct: 0
            task_struct: 0
              page_size: 0
           switch_stack: 0
         xen_kdump_data: (unused)
       num_prstatus_notes: 4
       nt_prstatus_percpu:
        084057ec 08405890 08405934 084059d8

Elf32_Ehdr:
                e_ident: \177ELF
      e_ident[EI_CLASS]: 1 (ELFCLASS32)
       e_ident[EI_DATA]: 1 (ELFDATA2LSB)
    e_ident[EI_VERSION]: 1 (EV_CURRENT)
      e_ident[EI_OSABI]: 0 (ELFOSABI_SYSV)
 e_ident[EI_ABIVERSION]: 0
                 e_type: 4 (ET_CORE)
              e_machine: 3 (EM_386)
              e_version: 1 (EV_CURRENT)
                e_entry: 0
                e_phoff: 34
                e_shoff: 0
                e_flags: 0
               e_ehsize: 34
            e_phentsize: 20
                e_phnum: 6
            e_shentsize: 0
                e_shnum: 0
             e_shstrndx: 0
Elf32_Phdr:
                 p_type: 4 (PT_NOTE)
               p_offset: 244 (f4)
                p_vaddr: 0
                p_paddr: 0
               p_filesz: 656 (290)
                p_memsz: 656 (290)
                p_flags: 0 ()
                p_align: 0
Elf32_Phdr:
                 p_type: 1 (PT_LOAD)
               p_offset: 900 (384)
                p_vaddr: c0000000
                p_paddr: 0
               p_filesz: 655360 (a0000)
                p_memsz: 655360 (a0000)
                p_flags: 7 (PF_X|PF_W|PF_R)
                p_align: 0
Elf32_Phdr:
                 p_type: 1 (PT_LOAD)
               p_offset: 656260 (a0384)
                p_vaddr: c0100000
                p_paddr: 100000
               p_filesz: 15728640 (f00000)
                p_memsz: 15728640 (f00000)
                p_flags: 7 (PF_X|PF_W|PF_R)
                p_align: 0
Elf32_Phdr:
                 p_type: 1 (PT_LOAD)
               p_offset: 16384900 (fa0384)
                p_vaddr: c9000000
                p_paddr: 9000000
               p_filesz: 788529152 (2f000000)
                p_memsz: 788529152 (2f000000)
                p_flags: 7 (PF_X|PF_W|PF_R)
                p_align: 0
Elf32_Phdr:
                 p_type: 1 (PT_LOAD)
               p_offset: 804914052 (2ffa0384)
                p_vaddr: ffffffff
                p_paddr: 38000000
               p_filesz: 2684028288 (9ffb0580)
                p_memsz: 2684028288 (9ffb0580)
                p_flags: 7 (PF_X|PF_W|PF_R)
                p_align: 0
Elf32_Phdr:
                 p_type: 1 (PT_LOAD)
               p_offset: -806024956 (cff50904)
                p_vaddr: ffffffff
                p_paddr: 0
               p_filesz: 671088640 (28000000)
                p_memsz: 671088640 (28000000)
                p_flags: 7 (PF_X|PF_W|PF_R)
                p_align: 0
Elf32_Nhdr:
               n_namesz: 5 ("CORE")
               n_descsz: 144
                 n_type: 1 (NT_PRSTATUS)
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 c058e008 00000020
                         00000000 f70b007b 0000007b 00000000
                         000000d8 00000000 c0103240 00000060
                         00000246 c058ffc0 00000068 00000000
Elf32_Nhdr:
               n_namesz: 5 ("CORE")
               n_descsz: 144
                 n_type: 1 (NT_PRSTATUS)
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000da5 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 c053c240 c0527930
                         00000000 00000000 00000063 00000000
                         00000000 0000007b 0000007b 00000000
                         f618df30 c053c240 c013e8cf 00000060
                         00000046 f618df08 00000068 00000000
Elf32_Nhdr:
               n_namesz: 5 ("CORE")
               n_descsz: 144
                 n_type: 1 (NT_PRSTATUS)
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 cb124008 00000000
                         00000000 f77c007b 0000007b 00000000
                         000000d8 00000000 c0103240 00000060
                         00000246 cb125fa4 00000068 00000000
Elf32_Nhdr:
               n_namesz: 5 ("CORE")
               n_descsz: 144
                 n_type: 1 (NT_PRSTATUS)
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000ade 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 00000000 00000000
                         00000000 00000000 000000fa 003d0900
                         00000000 00000998 f75bbf6c f75bbf40
                         cb02aa00 0000007b f70b007b 00000000
                         f7e800d8 cb02aa00 c040dac7 00000060
                         00000046 f75bbed4 00000068 00000000
gdb vmlinux
GNU gdb 6.1
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 "i686-pc-linux-gnu"...
<readmem: c0413a20, KVADDR, "kernel_config_data", 32768, (ROE), 8fa1020>
crash: CONFIG_NR_CPUS: 32
crash: CONFIG_HZ: 250
<readmem: c0623d00, KVADDR, "xtime", 8, (FOE), 83be098>
<readmem: c0524344, KVADDR, "init_uts_ns", 390, (ROE), 83be67c>
<readmem: c0412000, KVADDR, "linux_banner", 4, (FOE), bfee229c>
WARNING: invalid linux_banner pointer: 756e694c
<readmem: 756e694c, KVADDR, "accessible check", 4, (ROE|Q), bfee20d4>
crash: invalid kernel virtual address: 756e694c  type: "accessible check"
crash: vmlinux and vmcore do not match!

Usage:
  crash [-h [opt]][-v][-s][-i file][-d num] [-S] [mapfile] [namelist] [dumpfile]
Enter "crash -h" for details.


Thanks
Vivek

--
Crash-utility mailing list
Crash-utility@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/crash-utility

[Index of Archives]     [Fedora Development]     [Fedora Desktop]     [Fedora SELinux]     [Yosemite News]     [KDE Users]     [Fedora Tools]

 

Powered by Linux