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. This patch fix it. Signed-off-by: Wang YanQing <[email protected]> --- 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 -- 1.7.12.4.dirty _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
