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Kairui Song d551516f52 Set watchdog's pretimeout to zero in kdump kernel 
Most watchdogs have a parameter pretimeout, if set to non-zero, it means
before the watchdog really reset the system, it will try to panic the
kernel first, so kdump could kick in, or, just print a panic stacktrace
and then kernel should reset it self.

If we are already in kdump kernel, this is not really helpful, only
increase kernel hanging chance. And it also make thing become complex
as some watchdog triggers the kernel panic in NMI context, which
could also hang the kernel in strange ways, and fail the watchdog it
self. So just disable this parameter.

Also for hpwdt, it have another parameter kdumptimeout, which is
just designed for first kernel. The default behaviour is the watchdog
will simply stop working if timeouted, trigger a panic, and leave the
kernel to kdump. Again, if we are already in kdump this is not helpful.
So also disable that.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Lianbo Jiang <lijiang@redhat.com>
2020-11-30 15:25:36 +08:00
tests selftest: Fix several test issue with Fedora 33 2020-11-18 23:57:13 +08:00
.gitignore .gitignore: Update to make it more generic 2016-05-16 10:15:01 +08:00
60-kdump.install Add a kernel install hook to clean up kdump initramfs 2020-08-27 11:22:03 +08:00
98-kexec.rules Make udev reload rules quiet during bootup 2018-12-06 17:44:03 +08:00
98-kexec.rules.ppc64 kexec.rules: create dedicated udev rules for ppc64 2019-05-06 16:22:28 +08:00
dracut-early-kdump-module-setup.sh enable the logger for kdump 2020-10-27 17:33:54 +08:00
dracut-early-kdump.sh Add code comments to help better understanding 2020-11-12 13:59:21 +08:00
dracut-kdump-capture.service dracut-kdump-capture.service: Use OnFailureJobMode instead of deprecated OnFailureIsolate 2019-06-14 09:44:09 +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 kdump-error-handler.service: Remove ExecStopPost 2019-11-28 17:46:00 +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 Improve debugging in the kdump kernel 2020-10-27 17:34:07 +08:00
dracut-module-setup.sh Add the rd.kdumploglvl option to control log level in the second kernel 2020-11-13 02:43:49 +08:00
dracut-monitor_dd_progress monitor-dd-progress fix 2013-06-25 16:45:59 +08:00
early-kdump-howto.txt Improves the early-kdump-howto.txt document in several points: 2020-03-12 23:31:34 +08:00
fadump-howto.txt fadump: update fadump-howto.txt with some more troubleshooting help 2020-06-04 11:45:05 +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 the rd.kdumploglvl option to control log level in the second kernel 2020-11-13 02:43:49 +08:00
kdump-lib.sh Set watchdog's pretimeout to zero in kdump kernel 2020-11-30 15:25:36 +08:00
kdump-logger.sh Capitalize the configuration name of log level 2020-11-13 02:49:35 +08:00
kdump-udev-throttler Make udev reload rules quiet during bootup 2018-12-06 17:44:03 +08:00
kdump.conf increase makdumpfile default message level to 7 2020-10-27 17:45:32 +08:00
kdump.conf.5 Fix comment about ssh dump target 2020-11-05 01:10:14 +08:00
kdump.service kdump.service: use ConditionKernelCommandLine=crashkernel 2020-10-27 12:22:36 -04:00
kdump.sysconfig Update the kdump sysconfig 2020-11-13 02:49:56 +08:00
kdump.sysconfig.aarch64 Update the kdump sysconfig 2020-11-13 02:49:56 +08:00
kdump.sysconfig.i386 Update the kdump sysconfig 2020-11-13 02:49:56 +08:00
kdump.sysconfig.ppc64 Update the kdump sysconfig 2020-11-13 02:49:56 +08:00
kdump.sysconfig.ppc64le Update the kdump sysconfig 2020-11-13 02:49:56 +08:00
kdump.sysconfig.s390x Update the kdump sysconfig 2020-11-13 02:49:56 +08:00
kdump.sysconfig.x86_64 Update the kdump sysconfig 2020-11-13 02:49:56 +08:00
kdumpctl kdump-lib.sh: Use a more generic helper to detect omitted dracut module 2020-11-30 15:25:26 +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 Doc: improve the usage documentation of the logger 2020-11-13 02:49:56 +08:00
kexec-tools-2.0.20-eppic-Remove-duplicated-variable-declaration.patch Fix builing failure on Fedora 32 2020-01-29 14:43:47 +08:00
kexec-tools-2.0.20-fix-broken-multiboot2-buliding-for-i386.patch x86: Fix broken multiboot2 buliding for i386 2019-08-02 11:24:03 +08:00
kexec-tools-2.0.20-makedumpfile-Introduce-check-params-option.patch makedumpfile: Introduce --check-params option 2020-03-12 23:32:18 +08:00
kexec-tools-2.0.20-makedumpfile-Remove-duplicated-variable-declarations.patch Fix builing failure on Fedora 32 2020-01-29 14:43:47 +08:00
kexec-tools-2.0.20-Remove-duplicated-variable-declarations.patch Fix builing failure on Fedora 32 2020-01-29 14:43:47 +08:00
kexec-tools.spec Release 2.0.20-20 2020-11-19 00:38:23 +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 Move watchdog detect and install code to module-setup.sh 2020-11-12 14:03:40 +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
sources Update makedumpfile to 1.6.7 2020-01-29 08:47:42 +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
=============================
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