From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
To: liu.song11@zte.com.cn
Cc: kexec@lists.infradead.org
Subject: Re: some questions about elf_ppc64_load
Date: Tue, 06 Jan 2015 09:37:03 +0100 [thread overview]
Message-ID: <54AB9EAF.2020004@linux.vnet.ibm.com> (raw)
In-Reply-To: <OF9C6CA8A8.9D7923CD-ON48257DC5.0023F61F-48257DC5.0024E800@zte.com.cn>
On 06/01/2015 07:44, liu.song11@zte.com.cn wrote:
>
> hi all，
>
> I use kexec-tools-2.0.8 for ppc64, in fuction elf_ppc64_load prompt "Can't use ramdisk with device tree blob input".
>
> I don't know why here ramdisk can't together with dtb,and need some help.
The device tree is also specifying initrd (see kexec/fs2dt.c putnode),
so there is 2 initrd specify in that case. The code is a bit rough here,
but I guess this is because there is not yet a valid use case.
> I also have some questions, when I just ./kexe -l vmlinux then ./kexec -e, will jump to second kernel sucessfully,
>
> but without useful dtb, then device can't init correct. But, when I input ./kexec -l vmlinux --dtb=my.dtb , then
>
> ./kexec -e, the kernel couldn't work and crash in head_64.S, this problem also make me confused.
It's hard to state with no more details. I guess the device tree blob
you're using is not valid, or contain bad data.
Cheers,
Laurent.
> Thanks
> Regards
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next prev parent reply other threads:[~2015-01-06 8:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-06 6:44 some questions about elf_ppc64_load liu.song11
2015-01-06 8:37 ` Laurent Dufour [this message]
2015-01-06 9:20 ` liu.song11
2015-01-06 10:00 ` Laurent Dufour
2015-01-08 4:21 ` liu.song11
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