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39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
um: remove PAGE_SIZE alignment in linker script causing kernel segfault.
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The linker script cleanup that I did in commit
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5d150a97f9391f5bcd7ba0d59d7a11c3de3cea80 accidentally introduced an
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ALIGN(PAGE_SIZE) when converting to use INIT_TEXT_SECTION; Richard
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Weinberger reported that this causes the kernel to segfault with
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CONFIG_STATIC_LINK=y.
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I'm not certain why this extra alignment is a problem, but it seems likely
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it is because previously
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__init_begin = _stext = _text = _sinittext
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and with the extra ALIGN(PAGE_SIZE), _sinittext becomes different from the
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rest. So there is likely a bug here where something is assuming that
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_sinittext is the same as one of those other symbols. But reverting the
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accidental change fixes the regression, so it seems worth committing that
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now.
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Signed-off-by: Tim Abbott <tabbott@ksplice.com>
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Reported-by: richard -rw- weinberger <richard.weinberger@gmail.com>
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Cc: Jeff Dike <jdike@addtoit.com>
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Cc: user-mode-linux-devel@lists.sourceforge.net
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---
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arch/um/kernel/uml.lds.S | 2 +-
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1 files changed, 1 insertions(+), 1 deletions(-)
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--- a/arch/um/kernel/uml.lds.S
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+++ b/arch/um/kernel/uml.lds.S
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@@ -22,7 +22,7 @@ SECTIONS
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_text = .;
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_stext = .;
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__init_begin = .;
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- INIT_TEXT_SECTION(PAGE_SIZE)
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+ INIT_TEXT_SECTION(0)
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. = ALIGN(PAGE_SIZE);
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.text :
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