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Baoquan He 50aa6dea24 kexec-kdump-howto: Add note on setting correct value of kptr_restrict 
kdumpctl fails to load a crash kernel if KASLR is enabled.

The incorrect configuration of the kptr_restrict parameter causes that
the kdumpctl fails to load a crash kernel. The problem occurs when the
Kernel Address Space Layout Randomization (KASLR) mechanism is enabled.
The value of kptr_restrict decides how to expose the content of /proc
files. Inappropriate setting will cause that the /proc/kallsyms file is
being printed as all zeros. This configuration will break the kdump
loading process since it needs access to the conntent of /proc/kallsyms
if KASLR is enabled.

Set kptr_restrict to 1 to avoid the problem described above.

Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
2019-04-25 08:33:29 -04:00
.gitignore .gitignore: Update to make it more generic 2016-05-16 10:15:01 +08:00
98-kexec.rules Make udev reload rules quiet during bootup 2018-12-06 17:44:03 +08:00
dracut-early-kdump-module-setup.sh earlykdump: warn when installed kernel version differs from dracut target 2019-01-10 18:16:58 +08:00
dracut-early-kdump.sh earlykdump: generate symlink with stable name to kernel image and iniramfs 2019-01-10 18:11:49 +08:00
dracut-kdump-capture.service Introduce kdump capture service 2014-08-05 13:13:32 +08:00
dracut-kdump-emergency.service kdump-emergency: fix "Transaction is destructive" emergency failure 2017-03-31 11:54:30 +08:00
dracut-kdump-emergency.target kdump-emergency: fix "Transaction is destructive" emergency failure 2017-03-31 11:54:30 +08:00
dracut-kdump-error-handler.service Add failure_action as alias of default and make default obsolete 2019-01-22 17:57:53 +08:00
dracut-kdump-error-handler.sh Add failure_action as alias of default and make default obsolete 2019-01-22 17:57:53 +08:00
dracut-kdump.sh dracut-kdump: use POSIX shell syntax 2016-11-28 10:41:15 +08:00
dracut-module-setup.sh dracut-module-setup: Don't build squashed image if required modules are missing 2018-12-26 10:28:12 +08:00
dracut-monitor_dd_progress monitor-dd-progress fix 2013-06-25 16:45:59 +08:00
early-kdump-howto.txt earlykdump: Add a note of final_action option to avoid crash loop 2019-01-22 17:58:33 +08:00
fadump-howto.txt Add final_action option to kdump.conf 2019-01-22 17:58:24 +08:00
kdump-dep-generator.sh kdump-dep-generator: Add kdump service dependencies on the fly 2014-04-17 11:27:31 +08:00
kdump-in-cluster-environment.txt Add fence_kdump support for generic clusters 2014-04-03 14:43:06 +08:00
kdump-lib-initramfs.sh Add final_action option to kdump.conf 2019-01-22 17:58:24 +08:00
kdump-lib.sh Add failure_action as alias of default and make default obsolete 2019-01-22 17:57:53 +08:00
kdump-udev-throttler Make udev reload rules quiet during bootup 2018-12-06 17:44:03 +08:00
kdump.conf Add final_action option to kdump.conf 2019-01-22 17:58:24 +08:00
kdump.conf.5 Add final_action option to kdump.conf 2019-01-22 17:58:24 +08:00
kdump.service kdumpctl: Add reload support 2018-11-01 22:31:20 +08:00
kdump.sysconfig Remove kernel param "quiet" from kdump kernel cmdline 2015-12-11 15:18:31 +08:00
kdump.sysconfig.i386 Always drop nofail or nobootwait options 2018-08-14 10:34:45 +08:00
kdump.sysconfig.ppc64 Always drop nofail or nobootwait options 2018-08-14 10:34:45 +08:00
kdump.sysconfig.ppc64le Always drop nofail or nobootwait options 2018-08-14 10:34:45 +08:00
kdump.sysconfig.s390x Always drop nofail or nobootwait options 2018-08-14 10:34:45 +08:00
kdump.sysconfig.x86_64 Always drop nofail or nobootwait options 2018-08-14 10:34:45 +08:00
kdumpctl kdumpctl: add rebuild support 2019-04-05 02:02:43 +08:00
kdumpctl.8 Update man page for new kdumpctl command: reload / rebuild 2019-04-05 02:02:58 +08:00
kexec-kdump-howto.txt kexec-kdump-howto: Add note on setting correct value of kptr_restrict 2019-04-25 08:33:29 -04:00
kexec-tools-2.0.18-makedumpfiles-honor-the-CFLAGS-from-environment.patch Enable building with hardening flags 2019-02-22 17:09:07 +08:00
kexec-tools.spec Release 2.0.19-1 2019-03-22 17:06:27 +08:00
live-image-kdump-howto.txt Revert "kdumpctl: filter 'root' kernel parameter when running in live images" 2017-04-11 16:03:12 +08:00
mkdumprd mkdumprd: Improve the config reading logic 2019-03-29 10:52:39 +08:00
mkdumprd.8 Remove comma which is redundant 2013-02-16 15:19:41 +08:00
README README: Add a README file 2014-04-02 10:45:36 +08:00
sources Release 2.0.19-1 2019-03-22 17:06:27 +08:00
zanata-notes.txt Add a notes for zanata process 2012-12-05 01:23:09 -05:00

README 

Adding a patch to kexec-tools
=============================
There is a mailing list kexec@lists.fedoraproject.org where all the dicussion
related to fedora kexec-tools happen. All the patches are posted there for
inclusion and committed to kexec-tools after review.

So if you want your patches to be included in fedora kexec-tools package,
post these to kexec@lists.fedoraproject.org.

One can subscribe to list and browse through archives here.

https://admin.fedoraproject.org/mailman/listinfo/kexec