system panics when kexec load the kernel ?

Solution Unverified - Updated -

Issue

  • System panic if there is a rhgb,quiet parameters used when kexec load the kernel. 
#cat /proc/cmdline
ro root=/dev/mapper/myvg-rootvol rd_NO_LUKS  KEYBOARDTYPE=pc KEYTABLE=fr LANG=en_US.UTF-8 rd_NO_MD quiet SYSFONT=latarcyrheb-sun16 rhgb  rd_LVM_LV=myvg/rootvol rd_NO_DM

kexec -l /boot/vmlinuz-`uname -r` --initrd=/boot/initramfs-`uname -r`.img --command-line=\"`cat /proc/cmdline`\"
It will crash

kexec -l /boot/vmlinuz-`uname -r` --initrd=/boot/initramfs-`uname -r`.img --command-line="`sed 's/ rhgb\| quiet//g' /proc/cmdline`"
It works !

Environment

  • Red Hat Enterprise Linux (RHEL) 6

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