|author||Heiko Carstens <email@example.com>||2010-05-17 10:00:21 +0200|
|committer||Martin Schwidefsky <firstname.lastname@example.org>||2010-05-17 10:00:17 +0200|
[S390] debug: enable exception-trace debug facility
The exception-trace facility on x86 and other architectures prints traces to dmesg whenever a user space application crashes. s390 has such a feature since ages however it is called userprocess_debug and is enabled differently. This patch makes sure that whenever one of the two procfs files /proc/sys/kernel/userprocess_debug /proc/sys/debug/exception-trace is modified the contents of the second one changes as well. That way we keep backwards compatibilty but also support the same interface like other architectures do. Besides that the output of the traces is improved since it will now also contain the corresponding filename of the vma (when available) where the process caused a fault or trap. Signed-off-by: Heiko Carstens <email@example.com> Signed-off-by: Martin Schwidefsky <firstname.lastname@example.org>
Diffstat (limited to 'arch/s390/Kconfig')
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 0d8cd9bbe10..79d0ca08682 100644
@@ -444,13 +444,6 @@ config FORCE_MAX_ZONEORDER
- bool "Show crashed user process info"
- Say Y to print all process fault locations to the console. This is
- a debugging option; you probably do not want to set it unless you
- are an S390 port maintainer.
bool "Pseudo page fault support"