The patch titled
Alpha Linux kernel fails with inconsistent kallsyms data
has been added to the -mm tree. Its filename is
alpha-linux-kernel-fails-with-inconsistent-kallsyms-data.patch
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Subject: Alpha Linux kernel fails with inconsistent kallsyms data
From: Bastian Blank <waldi@xxxxxxxxxx>
The build of the Alpha Linux kernel currently fails[1] with inconsistent
kallsyms data. As I never saw that before, I thought about hardware
problems. But in fact it is a bug in the Linux kernel.
The end of the rodata section is marked with the "__end_rodata" symbol.
This symbol have different aligning constraints than the inittext parts
and therefor the start marked "_sinittext". Because of that the
__end_rodata symbol shifts between < _sinittext and == _sinittext. The
later variant is seen as a code symbol and recorded in the kallsyms data.
On fix would be to move the exception table a little bit and get some
space between that two areas.
[1]: http://buildd.debian.org/fetch.cgi?pkg=linux-2.6&arch=alpha&ver=2.6.25-5&stamp=1213919009&file=log&as=raw
Cc: maximilian attems <max@xxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/kernel/vmlinux.lds.S | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff -puN arch/alpha/kernel/vmlinux.lds.S~alpha-linux-kernel-fails-with-inconsistent-kallsyms-data arch/alpha/kernel/vmlinux.lds.S
--- a/arch/alpha/kernel/vmlinux.lds.S~alpha-linux-kernel-fails-with-inconsistent-kallsyms-data
+++ a/arch/alpha/kernel/vmlinux.lds.S
@@ -25,6 +25,13 @@ SECTIONS
} :kernel
_etext = .; /* End of text section */
+ NOTES :kernel :note
+ .dummy : {
+ *(.dummy)
+ } :kernel
+
+ RODATA
+
/* Exception table */
. = ALIGN(16);
__ex_table : {
@@ -33,13 +40,6 @@ SECTIONS
__stop___ex_table = .;
}
- NOTES :kernel :note
- .dummy : {
- *(.dummy)
- } :kernel
-
- RODATA
-
/* Will be freed after init */
. = ALIGN(PAGE_SIZE);
/* Init code and data */
_
Patches currently in -mm which might be from waldi@xxxxxxxxxx are
alpha-linux-kernel-fails-with-inconsistent-kallsyms-data.patch
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