makedumpfile: support for newer kernels [v4.9 onwards]

[Atsushi Kumagai]

Hello,

I would like to inform you that I can't reply on this thread next week
because of vacation, Thanks for your cooperation.

BTW, I answer the first question:

>Is there plan to support newer kernel?

I'm going to release the next version in July, it will support kernel 4.11.

Thanks,
Atsushi Kumagai

>
>Hi Pratyush/Dave,
>
>On Tue, Jun 13, 2017 at 1:36 PM, Pratyush Anand <panand at redhat.com> wrote:
>> Hi Abhishek,
>>
>> On Thursday 08 June 2017 11:30 AM, Abhishek Shah wrote:
>>>
>>> Hi Pratyush,
>>>
>>> Kernel config:
>>> ARM64_VA_BITS_48 [=y]
>>> ARM64_PAGE_SHIFT [=12]
>>> RANDOMIZE_BASE [=n]
>>> ARM64_4K_PAGES [=y]
>>
>> These are the only variable configs on which arm64 makedumpfile depends. I
>> tested with above configuration and things were working fine.
>>
>> I used 4.11 based kernel and  crash-7.1.9.
>>
>> BTW, which version of crash utility do you use. If you are not at latest can
>> you please try with latest.
>>
>I was using crash 7.1.9++ with head commit
>5c52842a58a2602dba81de71831af98b2b53c6e0;
>I have upgraded my kernel and built the crash utility again; and
>following is my setup details now:
>
>kernel: 4.12- rc5
>yocto based rootfs: Pyro[2.3] which has kexec 2.0.14 and makedumpfile 1.6.1.
>crash: 7.1.9++ [Head: 4d517ad28acd845fe6e91360e645cf0446a4757b]
>
>The output generated by makedumpfile gets processed by crash utility
>if I use following command:
>makedumpfile -E /proc/vmcore vmcore
>
>But, the output generated by following command (which I used while
>reporting the issue) gives the "seek error" while being processed by
>crash.
>makedumpfile /proc/vmcore vmcore
>
>(As a result?), output from following command gives "seek error" as
>well while being processed by crash:
>makedumpfile -c /proc/vmcore vmcore
>
>makedumpfile Manual suggests:
>"-E
>Create DUMPFILE in the ELF format.
>This option cannot be specified with -c option, because the ELF format
>does not support compressed data."
>So only elf formatted output from makedumpfile gets processed by crash.
>
>@Pratyush, Thanks for testing and verifying the kernel configuration
>for arm64 makedumpfile.
>When you say things were working fine for you,  what exact
>makedumpfile command did you use??
>
>Regards,
>Abhishek
>
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