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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
commit2cb7e0aaedad73b076ea18c6900b0e86c5760d79 (patch)
treeda68ca54bb79f4080079bf0828acda937593a4e1 /tmpfiles.d/systemd-pstore.conf
parentInitial commit. (diff)
downloadsystemd-upstream.tar.xz
systemd-upstream.zip
Adding upstream version 247.3.upstream/247.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tmpfiles.d/systemd-pstore.conf')
-rw-r--r--tmpfiles.d/systemd-pstore.conf34
1 files changed, 34 insertions, 0 deletions
diff --git a/tmpfiles.d/systemd-pstore.conf b/tmpfiles.d/systemd-pstore.conf
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+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# The systemd-pstore.service(1) archives the contents of /sys/fs/pstore
+# upon boot so that there is room for a subsequent dump. This service
+# is enabled with:
+# systemctl enable systemd-pstore
+#
+# With the service enabled, the kernel still needs to be configured
+# to write data into the pstore. The kernel has two parameters,
+# crash_kexec_post_notifiers and printk.always_kmsg_dump, that
+# control writes into pstore.
+#
+# The crash_kexec_post_notifiers parameter enables the kernel to write
+# dmesg (including stack trace) into pstore upon a panic even if kdump
+# is loaded, only needed if you want to use pstore with kdump. Without
+# this parameter, kdump could block writing to pstore for stability
+# reason. Note this increases the risk of kdump failure even if pstore
+# is not available.
+#
+# The printk.always_kmsg_dump parameter enables the kernel to write dmesg
+# upon a normal shutdown (shutdown, reboot, halt).
+#
+# To configure the kernel parameters, uncomment the appropriate
+# line(s) below. The value written is either 'Y' to enable the
+# kernel parameter, or 'N' to disable the kernel parameter.
+#
+# After making a change to this file, do:
+# systemd-tmpfiles --create path/to/tmpfiles.d/systemd-pstore.conf
+#
+# These changes are automatically applied on future re-boots.
+
+d /var/lib/systemd/pstore 0755 root root 14d
+#w- /sys/module/printk/parameters/always_kmsg_dump - - - - Y
+#w- /sys/module/kernel/parameters/crash_kexec_post_notifiers - - - - Y