? 2013?04?03? 17:43, Wang YanQing ??:
> I get garbage output of /proc/cmdline and in dmesg when I
> use kexec to load new kernel bzImage without append command
> line like below:
>
> kexec -l bzImage --initrd=initramfs.
Hello Wang
I tried this:
./build/sbin/kexec -l /boot/vmlinuz-2.6.32-279.el6.i686 --initrd=/boot/initramfs-2.6.32-279.el6.i686.img
But nothing happened and it seemed the command loaded the kernel successfully.
Can you describe your situation more concretely, please?
Thanks
Zhang
> This patch fix it.
>
> Signed-off-by: Wang YanQing <udknight at gmail.com>
> ---
> kexec/arch/i386/kexec-bzImage.c | 3 +++
> kexec/arch/i386/kexec-elf-x86.c | 3 +++
> 2 files changed, 6 insertions(+)
>
> diff --git a/kexec/arch/i386/kexec-bzImage.c b/kexec/arch/i386/kexec-bzImage.c
> index 99fd790..29f280d 100644
> --- a/kexec/arch/i386/kexec-bzImage.c
> +++ b/kexec/arch/i386/kexec-bzImage.c
> @@ -435,6 +435,9 @@ int bzImage_load(int argc, char **argv, const char *buf, off_t len,
> command_line_len = 0;
> if (command_line) {
> command_line_len = strlen(command_line) +1;
> + } else {
> + command_line = strdup("\0");
> + command_line_len = 1;
> }
> ramdisk_buf = 0;
> if (ramdisk) {
> diff --git a/kexec/arch/i386/kexec-elf-x86.c b/kexec/arch/i386/kexec-elf-x86.c
> index e62ebcb..788a209 100644
> --- a/kexec/arch/i386/kexec-elf-x86.c
> +++ b/kexec/arch/i386/kexec-elf-x86.c
> @@ -161,6 +161,9 @@ int elf_x86_load(int argc, char **argv, const char *buf, off_t len,
> command_line_len = 0;
> if (command_line) {
> command_line_len = strlen(command_line) +1;
> + } else {
> + command_line = strdup("\0");
> + command_line_len = 1;
> }
>
> /* Need to append some command line parameters internally in case of
