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ARM64: kernel: dump kernel addresses larger than VA_START

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The arm64 virtual addresses of kernel are like:
VA_START < MODULES_VADDR < KIMAGE_VADDR < PAGE_OFFSET.
PAGE_OFFSET is the virtual address of the start of the linear map.
And the vmalloc, kernel code and so on are between VA_START and
PAGE_OFFSET, so it is necessary to expand dump addresses to VA_START,
instead of PAGE_OFFSET.

Change-Id: I810ed216862de4c6e68b92d483de4aa68da532b8
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
This commit is contained in:
Huibin Hong 2016-06-29 19:58:26 +08:00 committed by Gerrit Code Review
parent 42c976e49e
commit 75830c2cea
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/kernel/process.c
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@ -178,7 +178,7 @@ static void show_data(unsigned long addr, int nbytes, const char *name)
* don't attempt to dump non-kernel addresses or
* values that are probably just small negative numbers
*/
if (addr < PAGE_OFFSET || addr > -256UL)
if (addr < VA_START || addr > -256UL)
return;
printk("\n%s: %#lx:\n", name, addr);