426b9269b8
We should use PatchXX to apply upstream kdump-utils patches instead of directly merge them into git. Resolves: RHEL-36415 Resolves: RHEL-37670 Upstream: https://github.com/rhkdump/kdump-utils/ Conflict: None Signed-off-by: Lichen Liu <lichliu@redhat.com>
42 lines
1.6 KiB
Diff
42 lines
1.6 KiB
Diff
From b4e3d3724cf372493b404586126067ff66e550d6 Mon Sep 17 00:00:00 2001
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From: Sourabh Jain <sourabhjain@linux.ibm.com>
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Date: Fri, 26 Apr 2024 18:17:49 +0530
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Subject: [PATCH 7/7] fadump/udev: do not re-register fadump if kernel hotplug
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ready
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With the introduction of kernel commit c6c5b14dac0d ("powerpc: make fadump
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resilient with memory add/remove events") linux kernel now internally manages
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the update of elfcorehdr during memory add/remove events. So no need to
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re-register fadump if the /sys/kernel/fadump/hotplug_ready is set to 1.
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No impact for kernels that do not have /sys/kernel/fadump/hotplug_ready
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sysfs.
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Relevant kernel commit links:
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1. https://msgid.link/20240422195932.1583833-2-sourabhjain@linux.ibm.com
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2. https://msgid.link/20240422195932.1583833-3-sourabhjain@linux.ibm.com
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Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
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---
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98-kexec.rules.ppc64 | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/98-kexec.rules.ppc64 b/98-kexec.rules.ppc64
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index e7735b3..85fe0b1 100644
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--- a/98-kexec.rules.ppc64
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+++ b/98-kexec.rules.ppc64
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@@ -15,7 +15,9 @@ GOTO="kdump_reload_end"
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LABEL="kdump_reload_mem"
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-RUN+="/bin/sh -c '/usr/bin/systemctl is-active kdump.service || exit 0; /usr/bin/systemd-run --quiet --no-block /usr/lib/udev/kdump-udev-throttler'"
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+# Don't re-register fadump if /sys/kernel/fadump/hotplug_ready sysfs is set to 1.
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+
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+RUN+="/bin/sh -c '/usr/bin/systemctl is-active kdump.service || exit 0; ! test -f /sys/kernel/fadump/hotplug_ready || cat /sys/kernel/fadump/hotplug_ready | grep 1 || exit 0; /usr/bin/systemd-run --quiet --no-block /usr/lib/udev/kdump-udev-throttler'"
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GOTO="kdump_reload_end"
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--
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2.44.0
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