Comment 45 for bug 1680349
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| bugproxy (bugproxy) wrote Comment bridged from LTC Bugzilla | #45 |
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bbfa235
(Get the code!)
(In reply to comment #80)
> Hello Canonical,
>
> There are two problems here
>
> 1. Hang when CPUs don't respond to IPI. This can be resolved by setting a
> non-zero panic timeout.
> That fix is now available in Ubuntu releases.
>
> 2. But dump capture is still not successful with case1 fix as the system
> is reseting, if some CPUs
> are not responding to IPIs, instead of booting into KDump kernel.
>
> While case1 is resolved - the kernel doesn't hang anymore if some CPUs don't
> respond to IPIs. As for
> case2, I suspect the reset could be happening in f/w while reinitializing
> CPUs. Need to confirm that
> though. Also, exploring if it is possible to workaround what seems like a
> firwmare limitation. Please
> keep the bug open while I work on case2. If we can't workaround case2, may
> have to close this as
> will-not-fix.
While this is on my TODO list, putting this low on my priority list as it is an
unlikely user scenario...
Thanks
Hari