Re: [PATCH 6.3 00/13] 6.3.12-rc1 review

[Greg Kroah-Hartman]

On Tue, Jul 04, 2023 at 02:13:03PM +0530, Harshit Mogalapalli wrote:
> Hi Greg,
> 
> On 04/07/23 1:54 pm, Greg Kroah-Hartman wrote:
> 
> > > > 
> > > > 
> > > > While running LTP hugetlb testing on x86 the following kernel BUG noticed
> > > > on running stable-rc 6.3.12-rc1.
> > > > 
> > > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
> > > > 
> > > > Crash log:
> > > > =========
> > > > [   54.386939] hugefallocate01 (410): drop_caches: 3
> > > > g tests.......
> > > 
> > > And this worked on 6.3.11 just fine?
> > > 
> > > Trying to narrow down what would have caused this...
> > > 
> > > Any chance you can run Linus's tree with thie LTP test as well?
> > 
> > Ah, I can hit this here locally too!  Let me bisect...
> 
> 
> Have you looked at Patch 9 of this series:
> 
> https://lore.kernel.org/stable/2023070416-wow-phrasing-b92c@gregkh/T/#m12068530e846ac8b9668bd83941d82ec3f22ac15
> 
> Looks very much related, it also has a note on Backporting.
> As I think it could be related, I am sharing this.(But haven't tested
> anything)

Yes, that's the offending patch.  I should have read over the full
changelogs before doing bisection, but bisection/test proved that this
was not correct for 6.3.y at this point in time.

thanks,

greg k-h