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authorRichard Weinberger <richard@nod.at>2010-10-26 14:21:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-26 16:52:04 -0700
commit6915e04f8847bea16d0890f559694ad8eedd026c (patch)
treeec0028a3ab61e86c856782d962bea7b863f04f96 /arch/um/Makefile-skas
parent09358972bff5ce99de496bbba97c85d417b3c054 (diff)
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um: remove PAGE_SIZE alignment in linker script causing kernel segfault.
The linker script cleanup that I did in commit 5d150a97f93 ("um: Clean up linker script using standard macros.") (2.6.32) accidentally introduced an ALIGN(PAGE_SIZE) when converting to use INIT_TEXT_SECTION; Richard Weinberger reported that this causes the kernel to segfault with CONFIG_STATIC_LINK=y. I'm not certain why this extra alignment is a problem, but it seems likely it is because previously __init_begin = _stext = _text = _sinittext and with the extra ALIGN(PAGE_SIZE), _sinittext becomes different from the rest. So there is likely a bug here where something is assuming that _sinittext is the same as one of those other symbols. But reverting the accidental change fixes the regression, so it seems worth committing that now. Signed-off-by: Tim Abbott <tabbott@ksplice.com> Reported-by: Richard Weinberger <richard@nod.at> Cc: Jeff Dike <jdike@addtoit.com> Tested by: Antoine Martin <antoine@nagafix.co.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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