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authorArjan van de Ven <arjan@linux.intel.com>2008-01-30 13:33:08 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:08 +0100
commita25bd94964e87b1b93903a822fba5025d995d4da (patch)
tree67208bd1666760ac0d0d9c01c3be2a1b12f5aae3 /Documentation
parent6dab27784b2a97823b522e1cb88e40be40a93d45 (diff)
downloadlinaro-lsk-a25bd94964e87b1b93903a822fba5025d995d4da.tar.gz
x86: add the "print code before the trapping instruction" feature to 64 bit
The 32 bit x86 tree has a very useful feature that prints the Code: line for the code even before the trapping instrution (and the start of the trapping instruction is then denoted with a <>). Unfortunately, the 64 bit x86 tree does not yet have this feature, making diagnosing backtraces harder than needed. This patch adds this feature in the same was as the 32 bit tree has (including the same kernel boot parameter), and including a bugfix to make the code use probe_kernel_address() rarther than a buggy (deadlocking) __get_user. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e7910f8b4fc..40db7dd1d92 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -416,8 +416,8 @@ and is between 256 and 4096 characters. It is defined in the file
[SPARC64] tick
[X86-64] hpet,tsc
- code_bytes [IA32] How many bytes of object code to print in an
- oops report.
+ code_bytes [IA32/X86_64] How many bytes of object code to print
+ in an oops report.
Range: 0 - 8192
Default: 64