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Coiby Xu 224984355d try to reset kernel crashkernel when kexec-tools updates the default crashkernel value
Resolves: bz1895258
Upstream: Fedora
Conflict: None

commit 0adb0f4a8c
Author: Coiby Xu <coxu@redhat.com>
Date:   Wed Dec 1 15:33:13 2021 +0800

    try to reset kernel crashkernel when kexec-tools updates the default crashkernel value

    kexec-tools could update the default crashkernel value.
    When auto_reset_crashkernel=yes, reset kernel to new crashkernel
    value in the following two cases,
     - crashkernel=auto is found in the kernel cmdline
     - the kernel crashkernel was previously set by kexec-tools i.e.
       the kernel is using old default crashkernel value

    To tell if the user is using a custom value for the kernel crashkernel
    or not, we assume the user would never use the default crashkernel value
    as custom value. When kexec-tools gets updated,
     1. save the default crashkernel value of the older package to
        /tmp/crashkernel (for POWER system, /tmp/crashkernel_fadump is saved
        as well).
     2. If auto_reset_crashkernel=yes, iterate all installed kernels.
        For each kernel, compare its crashkernel value with the old
        default crashkernel and reset it if yes

    The implementation makes use of two RPM scriptlets [2],
     - %pre is run before a package is installed so we can use it to save
       old default crashkernel value
     - %post is run after a package installed so we can use it to try to reset
       kernel crashkernel

    There are several problems when running kdumpctl in the RPM scripts
    for CoreOS/Atomic/Silverblue, for example, the lock can't be acquired by
    kdumpctl, "rpm-ostree kargs" can't be run and etc.. So don't enable this
    feature for CoreOS/Atomic/Silverblue.

    Note latest shellcheck (0.8.0) gives false positives about the
    associative array as of this commit. And Fedora's shellcheck is 0.7.2
    and can't even correctly parse the shell code because of the associative
    array.

    [1] https://github.com/koalaman/shellcheck/issues/2399
    [2] https://docs.fedoraproject.org/en-US/packaging-guidelines/Scriptlets/

    Reviewed-by: Pingfan Liu <piliu@redhat.com>
    Reviewed-by: Philipp Rudo <prudo@redhat.com>
    Signed-off-by: Coiby Xu <coxu@redhat.com>

Signed-off-by: Coiby Xu <coxu@redhat.com>
2022-01-06 03:55:25 +00:00
tests Merged update from upstream sources 2020-11-20 12:35:49 +00:00
.editorconfig kdump-lib-initramfs.sh: prepare to be a POSIX compatible lib 2021-11-09 21:45:15 +08:00
.gitignore RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
60-kdump.install Write to /var/lib/kdump if $KDUMP_BOOTDIR not writable 2021-06-23 09:34:40 +08:00
92-crashkernel.install Don't exit 1 from 92-crashkernel.install if zipl is absent (#1993505) 2021-12-07 20:06:48 +08:00
98-kexec.rules RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
98-kexec.rules.ppc64 Stop reloading kdump service on CPU hotplug event for FADump 2021-05-14 14:27:03 +08:00
crashkernel-howto.txt Update crashkernel-howto.txt 2021-12-08 09:01:11 +08:00
dracut-early-kdump-module-setup.sh bash scripts: reformat with shfmt 2021-11-09 21:42:45 +08:00
dracut-early-kdump.sh dracut-early-kdump.sh: make it POSIX compatible 2021-11-10 10:27:00 +08:00
dracut-fadump-init-fadump.sh fadump-init: clean up mount points properly 2021-07-20 15:43:43 +08:00
dracut-fadump-module-setup.sh fadump: isolate fadump initramfs image within the default one 2021-07-20 15:43:11 +08:00
dracut-kdump-capture.service RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
dracut-kdump-emergency.service Merge kdump-error-handler.sh into kdump.sh 2021-11-09 21:45:31 +08:00
dracut-kdump-emergency.target RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
dracut-kdump.sh Add header comment for POSIX compliant scripts 2021-11-10 10:26:54 +08:00
dracut-module-setup.sh ppc64/ppc64le: drop cpu online rule in 40-redhat.rules in kdump initramfs 2021-12-29 11:21:42 +08:00
dracut-monitor_dd_progress RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
early-kdump-howto.txt RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
fadump-howto.txt fadump: improve fadump-howto.txt about remote dump target setup 2021-12-08 08:59:31 +08:00
gating.yaml Add gating.yaml to RHEL-9 kexec-tools 2021-06-08 20:03:41 +08:00
kdump-dep-generator.sh Merged update from upstream sources 2021-01-22 08:12:00 +00:00
kdump-in-cluster-environment.txt RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
kdump-lib-initramfs.sh Add header comment for POSIX compliant scripts 2021-11-10 10:26:54 +08:00
kdump-lib.sh factor out kdump_get_arch_recommend_crashkernel 2022-01-06 03:55:25 +00:00
kdump-logger.sh Add header comment for POSIX compliant scripts 2021-11-10 10:26:54 +08:00
kdump-migrate-action.sh kdump/ppc64: rebuild initramfs image after migration 2021-12-03 18:13:09 +08:00
kdump-restart.sh kdump/ppc64: rebuild initramfs image after migration 2021-12-03 18:13:09 +08:00
kdump-udev-throttler RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
kdump.conf introduce the auto_reset_crashkernel option to kdump.conf 2022-01-06 03:55:25 +00:00
kdump.conf.5 introduce the auto_reset_crashkernel option to kdump.conf 2022-01-06 03:55:25 +00:00
kdump.service Merged update from upstream sources 2020-11-05 05:34:29 +00:00
kdump.sysconfig Disable CMA in kdump 2nd kernel 2021-05-14 14:27:03 +08:00
kdump.sysconfig.aarch64 kdump.sysconfig: make kexec_file_load as default option on arm64 2021-11-12 05:58:48 +00:00
kdump.sysconfig.i386 Disable CMA in kdump 2nd kernel 2021-05-14 14:27:03 +08:00
kdump.sysconfig.ppc64 Disable CMA in kdump 2nd kernel 2021-05-14 14:27:03 +08:00
kdump.sysconfig.ppc64le kdump.sysconfig: make kexec_file_load as default option on ppc64le 2021-11-12 09:47:42 +08:00
kdump.sysconfig.s390x kdump.sysconfig.s390: Remove "prot_virt" from kdump kernel cmdline 2021-07-20 17:27:12 +02:00
kdump.sysconfig.x86_64 Revert "Revert "x86_64: enable the kexec file load by default"" 2021-07-14 09:21:57 +08:00
kdumpctl try to reset kernel crashkernel when kexec-tools updates the default crashkernel value 2022-01-06 03:55:25 +00:00
kdumpctl.8 rewrite reset_crashkernel to support fadump and to used by RPM scriptlet 2022-01-06 03:55:25 +00:00
kexec-kdump-howto.txt Document/kexec-kdump-howto.txt: improve notes for kdump_pre and kdump_post scripts 2021-12-07 20:02:41 +08:00
kexec-tools-2.0.22-makedumpfile-check-for-invalid-physical-address-proc-kcore-when-making-ELF-dumpfile.patch check for invalid physical address of /proc/kcore when making ELF dumpfile 2021-06-29 13:14:08 +08:00
kexec-tools-2.0.22-makedumpfile-Increase-SECTION_MAP_LAST_BIT-to-5.patch Increase SECTION_MAP_LAST_BIT to 5 2021-06-28 22:05:35 +08:00
kexec-tools.spec try to reset kernel crashkernel when kexec-tools updates the default crashkernel value 2022-01-06 03:55:25 +00:00
live-image-kdump-howto.txt RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
mkdumprd mkdumprd: drop mountaddr/mountproto nfs mount options 2021-11-10 10:27:11 +08:00
mkdumprd.8 Merged update from upstream sources 2020-12-23 10:00:07 +00:00
mkfadumprd bash scripts: reformat with shfmt 2021-11-09 21:42:45 +08:00
README RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00
sources Release 2.0.23-3 2021-12-08 09:13:27 +08:00
supported-kdump-targets.txt Update supported-kdump-targets.txt 2021-11-26 13:38:12 +08:00
zanata-notes.txt RHEL 9.0.0 Alpha bootstrap 2020-10-15 14:45:57 +02:00

Adding a patch to kexec-tools
=============================
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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.

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