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kdump-load/00-default: Comment about some choices to follow Debian

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Tried here to give a brief reasoning on why we followed Debian;
or at least, have it explicitely mentioned in the comments, also
mentioning Ubuntu. These parameters make sense since Debian/Ubuntu
parameter approach is quite simple, hence mimic'ed here.

Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
This commit is contained in:
Guilherme G. Piccoli
2022-12-07 13:15:34 -03:00
parent d8815b1cd7
commit f68b45b1c6
2 changed files with 4 additions and 3 deletions
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2
00-default.conf
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@ -40,7 +40,7 @@ MNT_TMP="/tmp/.kdump_load.mnt"
# If FULL_COREDUMP is !=0, we collect a full compressed vmcore, which might # If FULL_COREDUMP is !=0, we collect a full compressed vmcore, which might
# require a lot of disk space. The MAKEDUMPFILE_*_CMD settings refer to # require a lot of disk space. The MAKEDUMPFILE_*_CMD settings refer to
# tunings on makedumpfile - we rely on zstd compression and maximum page # tunings on makedumpfile - we rely on zstd compression and maximum page
# exclusion for the full vmcore, mimic'ing Debian kdump # exclusion for the full vmcore, mimic'ing Debian/Ubuntu kdump.
FULL_COREDUMP=0 FULL_COREDUMP=0
MAKEDUMPFILE_COREDUMP_CMD="-z -d 31" MAKEDUMPFILE_COREDUMP_CMD="-z -d 31"
MAKEDUMPFILE_DMESG_CMD="--dump-dmesg" MAKEDUMPFILE_DMESG_CMD="--dump-dmesg"

5
kdump-load.sh
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@ -159,10 +159,11 @@ fi
cleanup_unused_initrd cleanup_unused_initrd
grub_update kdump grub_update kdump
# Stolen from Debian kdump # After some consideration, we've stolen the kdump parameters from
# Debian/Ubuntu implementation, it makes sense for us.
KDUMP_CMDLINE=$(sed -re 's/(^| )(crashkernel|hugepages|hugepagesz)=[^ ]*//g;s/"/\\\\"/' /proc/cmdline) KDUMP_CMDLINE=$(sed -re 's/(^| )(crashkernel|hugepages|hugepagesz)=[^ ]*//g;s/"/\\\\"/' /proc/cmdline)
KDUMP_CMDLINE="${KDUMP_CMDLINE} panic=-1 oops=panic fsck.mode=force fsck.repair=yes nr_cpus=1 reset_devices" KDUMP_CMDLINE="${KDUMP_CMDLINE} panic=-1 oops=panic fsck.mode=force fsck.repair=yes nr_cpus=1 reset_devices"
VMLINUX="$(grep -o 'BOOT_IMAGE=[^ ]*' /proc/cmdline)" VMLINUX="$(grep -o 'BOOT_IMAGE=[^ ]*' /proc/cmdline)"
# In case we don't have a valid initrd, for some reason, try creating # In case we don't have a valid initrd, for some reason, try creating