]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
x86: print which shared library/executable faulted in segfault etc. messages v3
authorAndi Kleen <ak@suse.de>
Wed, 30 Jan 2008 12:33:18 +0000 (13:33 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 30 Jan 2008 12:33:18 +0000 (13:33 +0100)
commit03252919b79891063cf99145612360efbdf9500b
treea80dc0c89448308d75d247446a5a04c84cb708a6
parentd3432896dae72ee97deb850ad7bbc30329d32c0d
x86: print which shared library/executable faulted in segfault etc. messages v3

They now look like:

hal-resmgr[13791]: segfault at 3c rip 2b9c8caec182 rsp 7fff1e825d30 error 4 in libacl.so.1.1.0[2b9c8caea000+6000]

This makes it easier to pinpoint bugs to specific libraries.

And printing the offset into a mapping also always allows to find the
correct fault point in a library even with randomized mappings. Previously
there was no way to actually find the correct code address inside
the randomized mapping.

Relies on earlier patch to shorten the printk formats.

They are often now longer than 80 characters, but I think that's worth it.

[includes fix from Eric Dumazet to check d_path error value]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/signal_32.c
arch/x86/kernel/signal_64.c
arch/x86/kernel/traps_32.c
arch/x86/kernel/traps_64.c
arch/x86/mm/fault_32.c
arch/x86/mm/fault_64.c
include/linux/mm.h
mm/memory.c