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| author | Vivek Goyal <vgoyal@in.ibm.com> | 2006-01-09 20:51:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-10 08:01:28 -0800 |
| commit | 4ae362be509306eafa6441603686d33fefe321c1 (patch) | |
| tree | d16a59e9c85945a6cc4a0945c80c0ecd97815923 /fs/proc | |
| parent | ec9ce0dbaa734bc95ec73cf5c13f202f1adb219d (diff) | |
| download | linux-4ae362be509306eafa6441603686d33fefe321c1.tar.gz linux-4ae362be509306eafa6441603686d33fefe321c1.tar.bz2 linux-4ae362be509306eafa6441603686d33fefe321c1.zip | |
[PATCH] kdump: read previous kernel's memory
- 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 <rachita@in.ibm.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/vmcore.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index 3b2e7b69e63a..5378d7c78419 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -35,6 +35,9 @@ static size_t elfcorebuf_sz; /* Total size of vmcore file. */ static u64 vmcore_size; +/* Stores the physical address of elf header of crash image. */ +unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; + struct proc_dir_entry *proc_vmcore = NULL; /* Reads a page from the oldmem device from given offset. */ |