linux-kernel - Re: [PATCH 5.10 00/21] 5.10.79-rc1 review

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Date:   Fri, 12 Nov 2021 14:46:16 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Shuah Khan <skhan@...uxfoundation.org>
Cc:     Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
        patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de,
        jonathanh@...dia.com, f.fainelli@...il.com, stable@...r.kernel.org
Subject: Re: [PATCH 5.10 00/21] 5.10.79-rc1 review

On Thu, Nov 11, 2021 at 02:36:08PM -0700, Shuah Khan wrote:
> On 11/11/21 6:01 AM, Sudip Mukherjee wrote:
> > Hi Greg,
> > 
> > On Wed, Nov 10, 2021 at 07:43:46PM +0100, Greg Kroah-Hartman wrote:
> > > This is the start of the stable review cycle for the 5.10.79 release.
> > > There are 21 patches in this series, all will be posted as a response
> > > to this one.  If anyone has any issues with these being applied, please
> > > let me know.
> > > 
> > > Responses should be made by Fri, 12 Nov 2021 18:19:54 +0000.
> > > Anything received after that time might be too late.
> > 
> > systemd-journal-flush.service failed due to a timeout resulting in a very very
> > slow boot on my test laptop. qemu test on openqa failed due to the same problem.
> > 
> > https://openqa.qa.codethink.co.uk/tests/365
> > 
> > A bisect showed the problem to be 8615ff6dd1ac ("mm: filemap: check if THP has
> > hwpoisoned subpage for PMD page fault"). Reverting it on top of 5.10.79-rc1
> > fixed the problem.
> > Incidentally, I was having similar problem with Linus's tree
> > for last few days and was failing since 20211106 (did not get the time to check).
> > I will test mainline again with this commit reverted.
> > 
> > 
> 
> Reverting mm: filemap: check if THP has hwpoisoned subpage for PMD page fault"
> worked for me on my test system.
> 
> With this commit boots are long and shutdown was at the 20+ minute m ark when
> I powered it down. This commit isn't in any of the other release candidates.

Thanks, will go drop this commit.

greg k-h