linux-kernel - Re: [PATCH 5.15 000/215] 5.15.166-rc1 review

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Message-ID: <2024090413-unwed-ranging-befe@gregkh>
Date: Wed, 4 Sep 2024 16:23:42 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Richard Narron <richard@...zen.com>
Cc: Linux stable <stable@...r.kernel.org>,
	Linux kernel <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 5.15 000/215] 5.15.166-rc1 review

On Wed, Sep 04, 2024 at 05:48:09AM -0700, Richard Narron wrote:
> On Wed, 4 Sep 2024, Greg KH wrote:
> 
> > On Mon, Sep 02, 2024 at 03:39:49PM -0700, Richard Narron wrote:
> > > I get an "out of memory" error when building Linux kernels 5.15.164,
> > > 5.15.165 and 5.15.166-rc1:
> > > ...
> > > cc1: out of memory allocating 180705472 bytes after a total of 283914240
> > > bytes
> > > ...
> > > make[4]: *** [scripts/Makefile.build:289:
> > > drivers/staging/media/atomisp/pci/isp/kernels/ynr/ynr_1.0/ia_css_ynr.host.o]
> > > Error 1
> > > ...
> > >
> > > I found a work around for this problem.
> > >
> > > Remove the six minmax patches introduced with kernel 5.15.164:
> > >
> > > minmax: allow comparisons of 'int' against 'unsigned char/short'
> > > minmax: allow min()/max()/clamp() if the arguments have the same
> > > minmax: clamp more efficiently by avoiding extra comparison
> > > minmax: fix header inclusions
> > > minmax: relax check to allow comparison between unsigned arguments
> > > minmax: sanity check constant bounds when clamping
> > >
> > > Can these 6 patches be removed or fixed?
> >
> > It's a bit late, as we rely on them for other changes.
> >
> > Perhaps just fixes for the files that you are seeing build crashes on?
> > I know a bunch of them went into Linus's tree for this issue, but we
> > didn't backport them as I didn't know what was, and was not, needed.  If
> > you can pinpoint the files that cause crashes, I can dig them up.
> >
> 
> The first one to fail on 5.15.164 was:
> drivers/media/pci/solo6x10/solo6x10-core.o
> 
> So I found and applied this patch to 5.15.164:
> [PATCH] media: solo6x10: replace max(a, min(b, c)) by clamp(b, a, c)

What is the git commit id of that change?  I can't seem to find it.

> Then the next to fail on 5.15.164 was:
> drivers/staging/media/atomisp/pci/isp/kernels/ynr/ynr_1.0/ia_css_ynr.host.o

What .c file is this happening for?

thanks,

greg k-h