Signed-off-by: Kairui Song kasong@redhat.com --- fadump-howto.txt | 9 ++++++--- kdumpctl | 2 +- 2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/fadump-howto.txt b/fadump-howto.txt index 433e9a6..bc87644 100644 --- a/fadump-howto.txt +++ b/fadump-howto.txt @@ -344,9 +344,12 @@ or OR # grubby --update-kernel=/boot/vmlinuz-`uname -r` --args="fadump=off"
-If KDump is to be used as the dump capturing mechanism, update the crashkernel -parameter (Else, remove "crashkernel=" parameter too, using grubby): +Remove "crashkernel=" from kernel cmdline parameters:
- # grubby --update-kernel=/boot/vmlinuz-$kver --args="crashkernl=auto" + # grubby --update-kernel=/boot/vmlinuz-`uname -r` --remove-args="crashkernel" + +If KDump is to be used as the dump capturing mechanism, reset the crashkernel parameter: + + # kdumpctl reset-crashkernel `uname -r`
Reboot the system for the settings to take effect. diff --git a/kdumpctl b/kdumpctl index 0fb73b6..f10b091 100755 --- a/kdumpctl +++ b/kdumpctl @@ -1232,7 +1232,7 @@ do_estimate() baseline=$((${baseline%Y} * 1048576)) fi
- # The default value when using crashkernel=auto + # The default pre-reserved crashkernel value baseline_size=$((baseline * size_mb)) # Current reserved crashkernel size reserved_size=$(cat /sys/kernel/kexec_crash_size)