39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
um: remove PAGE_SIZE alignment in linker script causing kernel segfault.
|
|
|
|
The linker script cleanup that I did in commit
|
|
5d150a97f9391f5bcd7ba0d59d7a11c3de3cea80 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 -rw- weinberger <richard.weinberger@gmail.com>
|
|
Cc: Jeff Dike <jdike@addtoit.com>
|
|
Cc: user-mode-linux-devel@lists.sourceforge.net
|
|
---
|
|
arch/um/kernel/uml.lds.S | 2 +-
|
|
1 files changed, 1 insertions(+), 1 deletions(-)
|
|
|
|
--- a/arch/um/kernel/uml.lds.S
|
|
+++ b/arch/um/kernel/uml.lds.S
|
|
@@ -22,7 +22,7 @@ SECTIONS
|
|
_text = .;
|
|
_stext = .;
|
|
__init_begin = .;
|
|
- INIT_TEXT_SECTION(PAGE_SIZE)
|
|
+ INIT_TEXT_SECTION(0)
|
|
. = ALIGN(PAGE_SIZE);
|
|
|
|
.text :
|