 Steffen Maier
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54e016ae71
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zdev/dracut: use namespace prefix in functions of zdev-lib.sh
Use namespace prefix in functions of zdev-lib.sh to avoid collisions with
different modules being sourced in the shell.
Github-ID: https://github.com/ibm-s390-linux/s390-tools/pull/158
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Acked-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
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2023-12-14 15:25:22 +01:00 |
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Steffen Maier
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1266f86444
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zdev/dracut: add shellcheck annotations for recently added code
The annotations and the one non-functional code change in
zdev/dracut/95zdev-kdump/module-setup.sh check() clear all shellcheck
reports.
complements
73c46a3056 ("zdev/dracut: fix kdump by only activating required devices")
Github-ID: https://github.com/ibm-s390-linux/s390-tools/pull/158
Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
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2023-12-14 15:25:22 +01:00 |
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Marc Hartmayer
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a2baeb2fe2
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zdev/dracut/zdev-lib.sh: add ShellCheck shell directive
Add a ShellCheck [1] directive before the first command in the file to tell
ShellCheck and the reader which shell to use. See
https://www.shellcheck.net/wiki/SC2148 for details.
[1] https://www.shellcheck.net/
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
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2023-08-02 14:48:12 +02:00 |
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Steffen Maier
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73c46a3056
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zdev/dracut: fix kdump by only activating required devices
This prevents out-of-memory (OOM) situations in the kdump crashkernel
environment.
Please note that the new dracut module 95zdev-kdump and the new library
zdev-lib.sh need to be packaged into the same (core) (sub)package as
95zdev.
This patch introduces a new dracut module "zdev-kdump", which is used
instead of module "zdev" when building a kdump initrd:
1. Ignore all persistently configured block devices and disable zfcp auto
LUN scanning => minimize the number of SCSI devices enabled during kdump.
2. Do not rely on chzdev's persistent configuration => work with systems
that do not use chzdev for persistent device configuration.
The detection of kdump is based on strict hostonly mode and on $IN_KDUMP.
See also
https://src.fedoraproject.org/rpms/kexec-tools commit
4eedcae5e154 ("dracut-module-setup.sh: don't include multipath-hostonly")
and https://github.com/dracutdevs/dracut commits
35e86ac117ac ("Merge 90-multipath-hostonly and 90-multipath")
a695250ec7db ("Introduce tri-state hostonly mode")
and
https://src.fedoraproject.org/rpms/kexec-tools/blob/rawhide/f/mkdumprd#_17
https://src.fedoraproject.org/rpms/kexec-tools/blob/rawhide/f/dracut-module-setup.sh#_23.
The detection of kdump is also based on kdump_needed() in
https://github.com/openSUSE/kdump/blob/master/dracut/module-setup.sh.
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
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2023-03-03 09:58:40 +01:00 |
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