On Fri, Jun 01, 2018 at 08:35:12AM -0700, Tony Lindgren wrote:
> * Russell King <rmk+kernel@xxxxxxxxxxxxxxx> [180601 11:02]:
> > Executing loops such as:
> >
> > while (1)
> > cpu_relax();
> >
> > with interrupts disabled results in a livelock of the entire system,
> > as other CPUs are prevented making progress. This is most noticable
> > as a failure of crashdump kexec, which stops just after issuing:
> >
> > Loading crashdump kernel...
> >
> > to the system console. Two other locations of these loops within the
> > ARM code have been identified and fixed up.
> >
> > Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
>
> Works for me thanks:
>
> Tested-by: Tony Lindgren <tony@xxxxxxxxxxx>
Thanks.
> BTW, do LZMA crashkernels boot for you with crashdump?
>
> For me LZMA crashkernels fail to boot while GZIP crashkernels
> boots. Some more info below for failing and working output.
>
> Regards,
>
> Tony
>
> 8< ----------------------
> CONFIG_KERNEL_LZMA fails:
>
> Try gzip decompression.
> Try LZMA decompression.
> lzma_decompress_file: read on /boot/zImage of 65536 bytes failed
> kernel: 0xb6abb010 kernel_size: 0x43d0f0
> MEMORY RANGES
> 0000000080000000-00000000bfdfffff (0)
> zImage header: 0x016f2818 0x00000000 0x0043d0f0
> zImage size 0x43d0f0, file size 0x43d0f0
> Reserved memory ranges
This looks like an old kexec binary as it's missing the output from:
dbgprintf("zImage requires 0x%08llx bytes\n", (unsigned long long)len);
Please can you test with the current version - the official
repository should now be up to date with my version. Thanks.
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