Re: kexec - 2.6.14 - loads BIOS again

["Prabhakar K." <krishkar99@xxxxxxxxx>]

> Hi - After my previous posting I was able to make some progress.
>
> When I do
>
> kexec -l vmlinux --append="init 1 root=/dev/hda2" --console-serial
>
> and 
> kexec -e,
>
> I get message:
>
> Starting new kernel
> I'm in purgatory
>
> And after that it still boots from BIOS (to the same first kernel).
>
> Whats the problem here?

I would recommend instrumenting up purgatory and then your target kernel.

It is quite possible the problem is in your backport.

>>>>

 I have instrumented the purgatory code. when I run kexec -e, It hangs for a while at 
sha256_starts(&ctx); in the function verify_sha256_digest(), and then reboots to the first kernel (from BIOS). I have put debug prints in sha256_starts, but none of those are executed.

Interestingly, the same function sha256_starts is executed during kexec -l, which is called as part of update_purgatory( )( when my_load( ) is called from kexec.c).

so its surprise why the same function is giving problems when kexec -e is run.

> What am I missing here?

The appropriate list.  Discussion of all things kexec has moved to the kexec
list at infradead which I have cc'd.

>>> Thanks Eric. For directing me to the right mailing list.

I am not subscribed to the list, so please CC me. Thanks !!

Regards,

Prabhakar

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