Eric Lee / linux-smarc-t335x-v3.2

24 Mar, 2011

1 commit

  • 93a72052b   crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setu… ... Browse Code »

    …p_elfcorehdr and saved_max_pfn

    The Xen PV drivers in a crashed HVM guest can not connect to the dom0
    backend drivers because both frontend and backend drivers are still in
    connected state. To run the connection reset function only in case of a
    crashdump, the is_kdump_kernel() function needs to be available for the PV
    driver modules.

    Consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn into
    kernel/crash_dump.c Also export elfcorehdr_addr to make is_kdump_kernel()
    usable for modules.

    Leave 'elfcorehdr' as early_param(). This changes powerpc from __setup()
    to early_param(). It adds an address range check from x86 also on ia64
    and powerpc.

    [akpm@linux-foundation.org: additional #includes]
    [akpm@linux-foundation.org: remove elfcorehdr_addr export]
    [akpm@linux-foundation.org: fix for Tejun's mm/nobootmem.c changes]
    Signed-off-by: Olaf Hering <olaf@aepfle.de>
    Cc: Russell King <rmk@arm.linux.org.uk>
    Cc: "Luck, Tony" <tony.luck@intel.com>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mundt <lethal@linux-sh.org>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: "H. Peter Anvin" <hpa@zytor.com>
    Cc: Johannes Weiner <hannes@cmpxchg.org>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

    Olaf Hering
     

11 Jan, 2006

1 commit

  • 4ae362be5   [PATCH] kdump: read previous kernel's memory ... Browse Code »

    - Moving the crash_dump.c file to arch dependent part as kmap_atomic_pfn is
    specific to i386 and highmem may not exist in other archs.

    - Use ioremap for x86_64 to map the previous kernel memory.

    - In copy_oldmem_page(), we now directly copy to the user/kernel buffer and
    avoid the unneccesary copy to a kmalloc'd page.

    Signed-off-by: Rachita Kothiyal
    Signed-off-by: Vivek Goyal
    Cc: Andi Kleen
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Vivek Goyal
     

09 Jan, 2006

1 commit

28 Jul, 2005

1 commit

26 Jun, 2005

3 commits

  • 666bfddbe   [PATCH] kdump: Access dump file in elf format (/proc/vmcore) ... Browse Code »

    From: "Vivek Goyal"

    o Support for /proc/vmcore interface. This interface exports elf core image
    either in ELF32 or ELF64 format, depending on the format in which elf headers
    have been stored by crashed kernel.
    o Added support for CONFIG_VMCORE config option.
    o Removed the dependency on /proc/kcore.

    From: "Eric W. Biederman"

    This patch has been refactored to more closely match the prevailing style in
    the affected files. And to clearly indicate the dependency between
    /proc/kcore and proc/vmcore.c

    From: Hariprasad Nellitheertha

    This patch contains the code that provides an ELF format interface to the
    previous kernel's memory post kexec reboot.

    Signed off by Hariprasad Nellitheertha
    Signed-off-by: Eric Biederman
    Signed-off-by: Vivek Goyal
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Vivek Goyal
     
  • 2030eae52   [PATCH] Retrieve elfcorehdr address from command line ... Browse Code »

    This patch adds support for retrieving the address of elf core header if one
    is passed in command line.

    Signed-off-by: Vivek Goyal
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Vivek Goyal
     
  • 60e64d46a   [PATCH] kdump: Routines for copying dump pages ... Browse Code »

    This patch provides the interfaces necessary to read the dump contents,
    treating it as a high memory device.

    Signed off by Hariprasad Nellitheertha
    Signed-off-by: Eric Biederman
    Signed-off-by: Vivek Goyal
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Vivek Goyal