Re: Request for backporting to 4.4 & 4.9: xenbus: Avoid deadlock during suspend due to open transactions

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On Sat, Oct 26, 2019 at 03:41:27PM -0400, Vincent Fortier wrote:
> Hi all,
> 
> I just found out that there may be a fix for our live-migration issues
> that we have been plagued with for quite a while.  The fix sits under
> 5.2 kernel at:
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.2.21&id=d10e0cc113c9e1b64b5c6e3db37b5c839794f3df
> 
> I believe this is material for the 4.4 & 4.9 stable trees as we've
> been hitting this issue under ubuntu 4.4 kernels.

Have you tested this change there?  It does not apply cleanly to those
kernel trees, if you can provide a working backport for 4.14.y, 4.9.y,
and 4.4.y I will be glad to queue it up.

thanks,

greg k-h



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