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Prarit Bhargava e8f71f38d5 Fix kdump udev memory event restarts 
During debugging of another problem issues were noted with the kdump udev
rules.  The kdump service is restarted on memory add and remove events.
These are the wrong events for these types of devices and result in an overly
aggressive restarting of the kdump service.

There are four udev events to consider, "add", "remove", "online", and
"offline".  The remove event is a complete removal from the system -- neither
the hardware nor the kernel know about the hardware; it has been physically
removed.  The add event is associated with hardware being physically added to
the system.  The kernel has some limited knowledge of the device, however,
it is not avaiable for the kernel to use until it is brought online.  Online
events refer to the device being available for the kernel to use.  Opposite
to that is the offline event, which occurs when a device is no longer in
use by the kernel.

Note that in all four events the kernel *may* have some remaining information
stored about the device.

In the case of memory hotplug, kdump should be restarted when a memory module
is onlined or offlined.  This is because the memory is not in use by the
kernel until the memory is onlined, and it is unused when the memory is
offlined.

Making these modifications results in smooth service on systems that do
heavy memory onlining and offlining.

Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
2014-05-04 17:08:34 +08:00
po Translation, Makefile: add make tgz option to auto pack po files 2013-12-24 14:25:23 +08:00
.gitignore Rebase makedumpfile-1.5.6 2014-04-30 13:40:01 +08:00
98-kexec.rules Fix kdump udev memory event restarts 2014-05-04 17:08:34 +08:00
dracut-kdump.sh Add fence_kdump support for generic clusters 2014-04-03 14:43:06 +08:00
dracut-module-setup.sh store the default dump target info when default target is a separate disk 2014-04-17 11:27:31 +08:00
dracut-monitor_dd_progress monitor-dd-progress fix 2013-06-25 16:45:59 +08:00
firstboot_kdump.py firstboot:fix reserve mem ui spinbox step size 2012-12-12 17:15:10 +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.sh pass mount info to dracut when default target is a separate disk 2014-04-17 11:27:31 +08:00
kdump.conf kdump.conf: renew the path section 2014-04-17 11:27:31 +08:00
kdump.conf.5 kdump.conf: renew the path section 2014-04-17 11:27:31 +08:00
kdump.service Disable the ratelimit of kdump service on hotplug events 2014-05-04 17:08:14 +08:00
kdump.sysconfig do not mount root twice 2012-07-12 11:15:35 +08:00
kdump.sysconfig.i386 kdump.sysconfig: default to "nofail" mount 2013-09-27 15:45:24 +08:00
kdump.sysconfig.ppc64 kdump.sysconfig: default to "nofail" mount 2013-09-27 15:45:24 +08:00
kdump.sysconfig.s390x s390x, sysconfig: Change maxcpus=1 to nr_cpus=1 for s390x 2014-01-22 12:52:02 +08:00
kdump.sysconfig.x86_64 Add acpi_no_memhotplug to kdump kernel 2014-01-29 16:25:57 +08:00
kdumpctl Add fence_kdump support for generic clusters 2014-04-03 14:43:06 +08:00
kexec-kdump-howto.txt kexec-kdump-howto.txt: renew the path section 2014-04-17 11:27:31 +08:00
kexec-tools-2.0.3-build-makedumpfile-eppic-shared-object.patch Rebase makedumpfile-1.5.6 2014-04-30 13:40:01 +08:00
kexec-tools-2.0.3-disable-kexec-test.patch Disable kexec_test 2012-01-21 16:56:07 +08:00
kexec-tools-2.0.5-vmcore-dmesg-stack-smashing-happend-in-extreme-case.patch Backport vmcore-dmsg stack smashing in extreme case 2014-03-14 13:04:58 +08:00
kexec-tools.spec Release 2.0.6-5 2014-04-30 13:43:50 +08:00
mkdumprd mkdumprd: stop passing nofail mount option 2014-04-30 13:43:40 +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
rhcrashkernel-param rhcrashkernel-param: echo crashkernel=auto for rhel7 2012-08-20 15:01:47 +08:00
sources Rebase makedumpfile-1.5.6 2014-04-30 13:40:01 +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