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kdumpctl: exit if either pre.d or post.d is missing 

It is hard to detect the time that /etc/kdump is removed. And this failure
may cause out-of-date kdump.initrd.  To keep things simple, just exit if
/etc/kdump/pre.d and post.d does not exist.

Signed-off-by: Pingfan Liu <piliu@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
This commit is contained in:
Pingfan Liu 2020-07-29 15:52:21 +08:00 committed by Kairui Song
parent 1844d088f7
commit f96172d353
3 changed files with 13 additions and 17 deletions
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12
kdump.conf
View File

@ -79,10 +79,9 @@
# or script after the vmcore dump process terminates. # or script after the vmcore dump process terminates.
# The exit status of the current dump process is fed to # The exit status of the current dump process is fed to
# the executable binary or script as its first argument. # the executable binary or script as its first argument.
# If /etc/kdump/post.d directory exists, all files in # All files under /etc/kdump/post.d are collectively sorted
# the directory are collectively sorted and executed in # and executed in lexical order, before binary or script
# lexical order, before binary or script specified # specified kdump_post parameter is executed.
# kdump_post parameter is executed.
# #
# kdump_pre <binary | script> # kdump_pre <binary | script>
# - Works like the "kdump_post" directive, but instead of running # - Works like the "kdump_post" directive, but instead of running
@ -90,9 +89,8 @@
# Exit status of this binary is interpreted as follows: # Exit status of this binary is interpreted as follows:
# 0 - continue with dump process as usual # 0 - continue with dump process as usual
# non 0 - run the final action (reboot/poweroff/halt) # non 0 - run the final action (reboot/poweroff/halt)
# If /etc/kdump/pre.d directory exists, all files in # All files under /etc/kdump/pre.d are collectively sorted and
# the directory are collectively sorted and executed in # executed in lexical order, after binary or script specified
# lexical order, after binary or script specified
# kdump_pre parameter is executed. # kdump_pre parameter is executed.
# Even if the binary or script in /etc/kdump/pre.d directory # Even if the binary or script in /etc/kdump/pre.d directory
# returns non 0 exit status, the processing is continued. # returns non 0 exit status, the processing is continued.

12
kdump.conf.5
View File

@ -109,10 +109,9 @@ status of the current dump process is fed to the kdump_post
executable as its first argument($1). Executable can modify executable as its first argument($1). Executable can modify
it to indicate the new exit status of succeeding dump process, it to indicate the new exit status of succeeding dump process,
.PP .PP
If /etc/kdump/post.d directory exists, All files in All files under /etc/kdump/post.d are collectively sorted
the directory are collectively sorted and executed in and executed in lexical order, before binary or script
lexical order, before binary or script specified specified kdump_post parameter is executed.
kdump_post parameter is executed.
.PP .PP
Note that scripts written for use with this directive must use Note that scripts written for use with this directive must use
the /bin/bash interpreter. the /bin/bash interpreter.
@ -129,9 +128,8 @@ as follows:
.PP .PP
non 0 - run the final action (reboot/poweroff/halt) non 0 - run the final action (reboot/poweroff/halt)
.PP .PP
If /etc/kdump/pre.d directory exists, all files in All files under /etc/kdump/pre.d are collectively sorted and
the directory are collectively sorted and executed in executed in lexical order, after binary or script specified
lexical order, after binary or script specified
kdump_pre parameter is executed. kdump_pre parameter is executed.
Even if the binary or script in /etc/kdump/pre.d directory Even if the binary or script in /etc/kdump/pre.d directory
returns non 0 exit status, the processing is continued. returns non 0 exit status, the processing is continued.

6
kdumpctl
View File

@ -151,7 +151,7 @@ rebuild_initrd()
check_exist() check_exist()
{ {
for file in $1; do for file in $1; do
if [ ! -f "$file" ]; then if [ ! -e "$file" ]; then
echo -n "Error: $file not found."; echo echo -n "Error: $file not found."; echo
return 1 return 1
fi fi
@ -385,11 +385,11 @@ check_files_modified()
done done
fi fi
# HOOKS is mandatory and need to check the modification time
files="$files $HOOKS"
check_exist "$files" && check_executable "$EXTRA_BINS" check_exist "$files" && check_executable "$EXTRA_BINS"
[ $? -ne 0 ] && return 2 [ $? -ne 0 ] && return 2
# HOOKS only need to check the modification here
files="$files $HOOKS"
for file in $files; do for file in $files; do
if [ -e "$file" ]; then if [ -e "$file" ]; then
time_stamp=`stat -c "%Y" $file` time_stamp=`stat -c "%Y" $file`