linux/arch/parisc
Heiko Carstens 608e261968 generic bug: use show_regs() instead of dump_stack()
The current generic bug implementation has a call to dump_stack() in case a
WARN_ON(whatever) gets hit.  Since report_bug(), which calls dump_stack(),
gets called from an exception handler we can do better: just pass the
pt_regs structure to report_bug() and pass it to show_regs() in case of a
warning.  This will give more debug informations like register contents,
etc...  In addition this avoids some pointless lines that dump_stack()
emits, since it includes a stack backtrace of the exception handler which
is of no interest in case of a warning.  E.g.  on s390 the following lines
are currently always present in a stack backtrace if dump_stack() gets
called from report_bug():

 [<000000000001517a>] show_trace+0x92/0xe8)
 [<0000000000015270>] show_stack+0xa0/0xd0
 [<00000000000152ce>] dump_stack+0x2e/0x3c
 [<0000000000195450>] report_bug+0x98/0xf8
 [<0000000000016cc8>] illegal_op+0x1fc/0x21c
 [<00000000000227d6>] sysc_return+0x0/0x10

Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:51 -07:00
..
configs libata/IDE: remove combined mode quirk 2007-04-28 14:15:59 -04:00
hpux [PARISC] ROUND_UP macro cleanup in arch/parisc 2007-05-22 23:56:14 -04:00
kernel generic bug: use show_regs() instead of dump_stack() 2007-07-16 09:05:51 -07:00
lib [PARISC] use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:16:40 -05:00
math-emu [PARISC] spelling fixes: arch/parisc/ 2007-05-22 22:52:16 -04:00
mm [PARISC] spelling fixes: arch/parisc/ 2007-05-22 22:52:16 -04:00
oprofile [PARISC] sparse fixes 2006-12-08 00:34:33 -05:00
defconfig [PARISC] defconfig updates 2006-04-21 22:20:33 +00:00
defpalo.conf Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6 2007-02-26 12:48:06 -08:00
Kconfig.debug [PARISC] Add CONFIG_DEBUG_RODATA to protect read-only data 2006-01-22 20:26:54 -05:00
Makefile [PARISC] Remove GCC_VERSION usage as suggested by Adrian Bunk 2006-12-08 00:34:44 -05:00
nm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00