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kexec-tools: issue warning when dd'ing vmcore

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With no warning, it just looks like the box has hung during boot.

We don't want users resetting it without having captured a crashdump.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
This commit is contained in:
Philip Prindeville 2017-09-16 10:16:29 -06:00 committed by John Crispin
parent 14951e8f8e
commit d59cc79e00
2 changed files with 3 additions and 1 deletions
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2
package/boot/kexec-tools/Makefile
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@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=kexec-tools PKG_NAME:=kexec-tools
PKG_VERSION:=2.0.14 PKG_VERSION:=2.0.14
PKG_RELEASE:=1 PKG_RELEASE:=2
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=@KERNEL/linux/utils/kernel/kexec PKG_SOURCE_URL:=@KERNEL/linux/utils/kernel/kexec

2
package/boot/kexec-tools/files/kdump.init
View file

@ -43,8 +43,10 @@ run_kdump() {
timestamp=$(date "+%Y%m%dT%H%M%S") timestamp=$(date "+%Y%m%dT%H%M%S")
if [ "$save_vmcore" -eq 1 ]; then if [ "$save_vmcore" -eq 1 ]; then
echo -n "Saving vmcore (this may take a while)..."
# would like 'sparse' but busybox doesn't support it # would like 'sparse' but busybox doesn't support it
dd if=/proc/vmcore of="$path/vmcore-$timestamp" conv=fsync bs=1M dd if=/proc/vmcore of="$path/vmcore-$timestamp" conv=fsync bs=1M
echo " done"
fi fi
if [ "$save_dmesg" -eq 1 ]; then if [ "$save_dmesg" -eq 1 ]; then