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authorLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 08:31:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-02 08:31:39 -0800
commit3cfb07743a5bffecba83f0da26444e85c0a9bfbb (patch)
treec27f27a8d8f4bad9eed265cf0894d2ce8f058b1d /lib
parente23b62256a361611cbd45cd1456638f1a5106b5c (diff)
parent36dfea42cc35509b481377980338cc3b89d79256 (diff)
downloadlinux-3cfb07743a5bffecba83f0da26444e85c0a9bfbb.tar.gz
Merge tag 'for_linux-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb
Pull KGDB/KDB fixes and cleanups from Jason Wessel: "For a change we removed more code than we added. If people aren't using it we shouldn't be carrying it. :-) Cleanups: - Remove kdb ssb command - there is no in kernel disassembler to support it - Remove kdb ll command - Always caused a kernel oops and there were no bug reports so no one was using this command - Use kernel ARRAY_SIZE macro instead of array computations Fixes: - Stop oops in kdb if user executes kdb_defcmd with args - kdb help command truncated text - ppc64 support for kgdbts - Add missing kconfig option from original kdb port for dealing with catastrophic kernel crashes such that you can reboot automatically on continue from kdb" * tag 'for_linux-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb: kdb: Remove unhandled ssb command kdb: Prevent kernel oops with kdb_defcmd kdb: Remove the ll command kdb_main: fix help print kdb: Fix overlap in buffers with strcpy Fixed dead ifdef block by adding missing Kconfig option. kdb: Setup basic kdb state before invoking commands via kgdb kdb: use ARRAY_SIZE where possible kgdb/kgdbts: support ppc64 kdb: A fix for kdb command table expansion
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.kgdb18
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/Kconfig.kgdb b/lib/Kconfig.kgdb
index dbb58ae1b8e..140e8782417 100644
--- a/lib/Kconfig.kgdb
+++ b/lib/Kconfig.kgdb
@@ -80,4 +80,22 @@ config KDB_KEYBOARD
help
KDB can use a PS/2 type keyboard for an input device
+config KDB_CONTINUE_CATASTROPHIC
+ int "KDB: continue after catastrophic errors"
+ depends on KGDB_KDB
+ default "0"
+ help
+ This integer controls the behaviour of kdb when the kernel gets a
+ catastrophic error, i.e. for a panic or oops.
+ When KDB is active and a catastrophic error occurs, nothing extra
+ will happen until you type 'go'.
+ CONFIG_KDB_CONTINUE_CATASTROPHIC == 0 (default). The first time
+ you type 'go', you will be warned by kdb. The secend time you type
+ 'go', KDB tries to continue. No guarantees that the
+ kernel is still usable in this situation.
+ CONFIG_KDB_CONTINUE_CATASTROPHIC == 1. KDB tries to continue.
+ No guarantees that the kernel is still usable in this situation.
+ CONFIG_KDB_CONTINUE_CATASTROPHIC == 2. KDB forces a reboot.
+ If you are not sure, say 0.
+
endif # KGDB