* KDB: improved searching
* No longer enter debug core on panic if panic timeout is set
KGDB/KDB regressions / cleanups
* fix pdf doc build errors
* prevent junk characters on kdb console from printk levels
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=TH0R
-----END PGP SIGNATURE-----
Merge tag 'for_linux-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb
Pull kgdb/kdb updates from Jason Wessel:
"KGDB/KDB New:
- KDB: improved searching
- No longer enter debug core on panic if panic timeout is set
KGDB/KDB regressions / cleanups
- fix pdf doc build errors
- prevent junk characters on kdb console from printk levels"
* tag 'for_linux-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
kgdb, docs: Fix <para> pdfdocs build errors
debug: prevent entering debug mode on panic/exception.
kdb: Const qualifier for kdb_getstr's prompt argument
kdb: Provide forward search at more prompt
kdb: Fix a prompt management bug when using | grep
kdb: Remove stack dump when entering kgdb due to NMI
kdb: Avoid printing KERN_ levels to consoles
kdb: Fix off by one error in kdb_cpu()
kdb: fix incorrect counts in KDB summary command output
kgdb.pdf failed to build from 'make pdfdocs' giving errors such as:
jade:... Documentation/DocBook/kgdb.xml:200:8:E:
document type does not allow element "para" here; missing one of
"footnote", "caution", "important", "note", "tip", "warning",
"blockquote", "informalexample" start-tag
Fixing minor <para> and <sect> issues allows kgdb.pdf to be generated
under Fedora20.
Originally submitted by rajaneesh.acharya@yahoo.com in 2011, discussed here:
http://permalink.gmane.org/gmane.linux.documentation/3954
as patch:
The following are the enhancements that removed the errors
while issuing "make pdfdocs"
[graham.whaley@intel.com: Improved commit message and ported to 3.18.1]
Signed-off-by: Graham Whaley <graham.whaley@intel.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Fix up a number of small typos, duplications and formatting issues.
Signed-off-by: Graham Whaley <graham.whaley@linux.intel.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
[jc: did s/kgdbdoc/kgdboc/]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
CC: Rob Landley <rob@landley.net>
CC: Jiri Kosina <jkosina@suse.cz>
CC: Masanari Iida <standby24x7@gmail.com>
CC: Jason Wessel <jason.wessel@windriver.com>
CC: Richard L Maliszewski <richard.l.maliszewski@intel.com>
CC: Gang Wei <gang.wei@intel.com>
CC: Shane Wang <shane.wang@intel.com>
CC: Harry Wei <harryxiyou@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Sometimes it is desirable to stop the kernel debugger before allowing
a system to reboot either with kdb or kgdb. This patch adds the
ability to turn the reboot notifier on and off or enter the debugger
and stop kernel execution before rebooting.
It is possible to change the setting after booting the kernel with the
following:
echo 1 > /sys/module/debug_core/parameters/kgdbreboot
It is also possible to change this setting using kdb / kgdb to
manipulate the variable directly.
Using KDB:
mm kgdbreboot 1
Using gdb:
set kgdbreboot=1
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Update the kgdb docs to include information about kernel mode setting support.
[Randy Dunlap <rdunlap@xenotime.net>: grammatical corrections]
CC: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Update the kgdb docs to reflect the new directory structure and API.
Merge in the kdb shell information.
[Randy Dunlap <rdunlap@xenotime.net>: grammatical corrections]
CC: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
gdb command "set remote debug 1" is not valid, change to correct command.
Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
A regression to the kgdb core was found in the case of using the
CONFIG_DEBUG_RODATA kernel option. When this option is on, a breakpoint
cannot be written into any readonly memory page. When an external
debugger requests a breakpoint to get set, the
kgdb_validate_break_address() was only checking to see if the address
to place the breakpoint was readable and lacked a write check.
This patch changes the validate routine to try reading (via the
breakpoint set request) and also to try immediately writing the break
point. If either fails, an error is correctly returned and the
debugger behaves correctly. Then an end user can make the
descision to use hardware breakpoints.
Also update the documentation to reflect that using
CONFIG_DEBUG_RODATA will inhibit the use of software breakpoints.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
There is no technical reason that the kgdb core requires frame
pointers. It is up to the end user of KGDB to decide if they need
them or not.
[ anemo@mba.ocn.ne.jp: removed frame pointers on mips ]
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
kgdboe is not presently included kgdb, and there should be no
references to it.
Also fix the tcp port terminal connection example.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Two minor fixes to the kgdb documentation.
Signed-off-by: Grzegorz Chwesewicz, Chilan <grzegorz.chwesewicz@chilan.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Linus Torvalds
Rajaneesh Acharya
Graham Whaley
Kees Cook
Jason Wessel
Frank Rowand
grzegorz.chwesewicz@chilan.com