On Mon, 28 Mar 2011 14:50:11 -0700, Chris Leech wrote: > kexec needs to keep the subarch setting the same as the running kernel > in the boot parameters, or the kernel will die in early setup. I ran > into this with X86_SUBARCH_MRST, but it should apply to CE4100 and any > future subarch that uses non-default early setup code. > > This patch requires debugfs mounted at /sys/kernel/debug, as that's the > only way I know of to get at the running kernels boot_params. Without > debugfs mounted it falls back to the current behavior of assuming > subarch 0. > ... > > +#define BOOT_PARAMS_DBGFS "/sys/kernel/debug/boot_params/data" A minor issue here is that you are using a hard-coded debugfs path, debugfs can be also mounted to /debug too, so it is better that if we can search the path dynamically here. Thanks.
