[PATCH V2] kdumpctrl: kdump feasibility should fail if no crash memory

Currently initramfs is rebuilt even when crash kernel memory is not available and then latter on kdump service is failed. Its better to fail during feasibility itself when crash memory is not reserved. Signed-off-by: Pratyush Anand <panand(a)redhat.com&gt; --- Changes since V1: * return 1 is false and 0 is true * crash memory availability is checked in check_kdump_feasibility now kdumpctl | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/kdumpctl b/kdumpctl index 34b64f33ac40..fcc9ad081437 100755 --- a/kdumpctl +++ b/kdumpctl @@ -559,13 +559,6 @@ need_64bit_headers() # as the currently running kernel. load_kdump() { - MEM_RESERVED=$(cat /sys/kernel/kexec_crash_size) - if [ $MEM_RESERVED -eq 0 ] - then - echo "No memory reserved for crash kernel." >&2 - return 1 - fi - ARCH=`uname -m` if [ "$ARCH" == "i686" -o "$ARCH" == "i386" ] then @@ -867,12 +860,26 @@ is_secure_boot_enforced() return 1 } +check_crash_mem_reserved() +{ + MEM_RESERVED=$(cat /sys/kernel/kexec_crash_size) + if [ $MEM_RESERVED -eq 0 ] + then + echo "No memory reserved for crash kernel." >&2 + return 1 + fi + + return 0 +} + check_kdump_feasibility() { if [ ! -e /sys/kernel/kexec_crash_loaded ]; then echo "Kdump is not supported on this kernel" return 1 fi + check_crash_mem_reserved + return $? } check_fence_kdump_config() -- 2.5.5