Gecko [ tanishkshah.com ]

Linux evo.fastest-server.com 5.14.0-284.1101.el9.tuxcare.11.els11.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Aug 14 13:30:35 UTC 2026 x86_64
LiteSpeed
Server IP : 103.249.112.113 & Your IP : 216.73.217.135
Domains : 988 Domain
User : tanishks

Name	Size	Permission	Date
hwdb.d	[ DIR ]	drwxr-xr-x	2026-09-04 09:14
rules.d	[ DIR ]	drwxr-xr-x	2026-09-04 10:13
ata_id	19.27 KB	-rwxr-xr-x	2026-06-25 00:28
cdrom_id	31.42 KB	-rwxr-xr-x	2026-06-25 00:28
dmi_memory_id	27.37 KB	-rwxr-xr-x	2026-06-25 00:28
fc_wwpn_id	1.11 KB	-rwxr-xr-x	2021-01-04 06:17
fido_id	23.27 KB	-rwxr-xr-x	2026-06-25 00:28
kdump-udev-throttler	1.63 KB	-rwxr-xr-x	2026-04-08 18:11
kpartx_id	2.33 KB	-rwxr-xr-x	2026-04-05 00:24
mtd_probe	15.23 KB	-rwxr-xr-x	2026-06-25 00:28
prefixdevname	1.45 MB	-rwxr-xr-x	2022-03-25 15:11
rename_device	15.34 KB	-rwxr-xr-x	2025-03-12 19:47
scsi_id	35.98 KB	-rwxr-xr-x	2026-06-25 00:28
v4l_id	15.23 KB	-rwxr-xr-x	2026-06-25 00:28

Rename

#!/usr/bin/bash
# This util helps to reduce the workload of kdump service restarting
# on udev event. When hotplugging memory / CPU, multiple udev
# events may be triggered concurrently, and obviously, we don't want
# to restart kdump service for each event.

# This script will be called by udev, and make sure kdump service is
# restart after all events we are watching are settled.

# On each call, this script will update try to aquire the $throttle_lock
# The first instance acquired the file lock will keep waiting for events
# to settle and then reload kdump. Other instances will just exit
# In this way, we can make sure kdump service is restarted immediately
# and for exactly once after udev events are settled.

throttle_lock="/var/lock/kdump-udev-throttle"

LUKS_CONFIGFS_REUSE=/sys/kernel/config/crash_dm_crypt_keys/reuse
reuse_luks_keys()
{
	[[ -f $LUKS_CONFIGFS_REUSE ]] || echo 1 > $LUKS_CONFIGFS_REUSE
}

unuse_luks_keys()
{

[[ -f $LUKS_CONFIGFS_REUSE ]] || echo 0 > $LUKS_CONFIGFS_REUSE
}

if ! exec 9> $throttle_lock; then
	echo "Failed to create the lock file! Fallback to non-throttled kdump service restart"
	/bin/kdumpctl reload
	exit 1
fi

if ! flock -n 9; then
	echo "Throttling kdump restart for concurrent udev event"
	exit 0
fi

# Wait for at least 1 second, at most 4 seconds for udev to settle
# Idealy we will have a less than 1 second lag between udev events settle
# and kdump reload
sleep 1 && udevadm settle --timeout 3

# Release the lock, /bin/kdumpctl will block and make the process
# holding two locks at the same time and we might miss some events
exec 9>&-

reuse_luks_keys
/bin/kdumpctl reload
unuse_luks_keys

exit 0