Re: [PATCH] arch/{mips,sparc,microblaze,powerpc}: Don't enable pagefault/preempt twice

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On Wed, Jun 03, 2020 at 01:57:36PM -0700, Andrew Morton wrote:
> On Thu, 21 May 2020 10:42:50 -0700 Ira Weiny <ira.weiny@xxxxxxxxx> wrote:
> 
> > > > 
> > > > Actually it occurs to me that the patch consolidating kmap_prot is odd for
> > > > sparc 32 bit...
> > > > 
> > > > Its a long shot but could you try reverting this patch?
> > > > 
> > > > 4ea7d2419e3f kmap: consolidate kmap_prot definitions
> > > > 
> > > 
> > > That is not easy to revert, unfortunately, due to several follow-up patches.
> > 
> > I have gotten your sparc tests to run and they all pass...
> > 
> > 08:10:34 > ../linux-build-test/rootfs/sparc/run-qemu-sparc.sh 
> > Build reference: v5.7-rc4-17-g852b6f2edc0f
> > 
> > Building sparc32:SPARCClassic:nosmp:scsi:hd ... running ......... passed
> > Building sparc32:SPARCbook:nosmp:scsi:cd ... running ......... passed
> > Building sparc32:LX:nosmp:noapc:scsi:hd ... running ......... passed
> > Building sparc32:SS-4:nosmp:initrd ... running ......... passed
> > Building sparc32:SS-5:nosmp:scsi:hd ... running ......... passed
> > Building sparc32:SS-10:nosmp:scsi:cd ... running ......... passed
> > Building sparc32:SS-20:nosmp:scsi:hd ... running ......... passed
> > Building sparc32:SS-600MP:nosmp:scsi:hd ... running ......... passed
> > Building sparc32:Voyager:nosmp:noapc:scsi:hd ... running ......... passed
> > Building sparc32:SS-4:smp:scsi:hd ... running ......... passed
> > Building sparc32:SS-5:smp:scsi:cd ... running ......... passed
> > Building sparc32:SS-10:smp:scsi:hd ... running ......... passed
> > Building sparc32:SS-20:smp:scsi:hd ... running ......... passed
> > Building sparc32:SS-600MP:smp:scsi:hd ... running ......... passed
> > Building sparc32:Voyager:smp:noapc:scsi:hd ... running ......... passed
> > 
> > Is there another test I need to run?
> 
> This all petered out, but as I understand it, this patchset still might
> have issues on various architectures.
> 
> Can folks please provide an update on the testing status?

I believe the tests were failing for Guenter due to another patch set...[1]

My tests with just this series are working.

>From my understanding the other failures were unrelated.[2]

	<quote Mike Rapoport>
	I've checked the patch above on top of the mmots which already has
	Ira's patches and it booted fine. I've used sparc32_defconfig to build
	the kernel and qemu-system-sparc with default machine and CPU.
	</quote>

Mike, am I wrong?  Do you think the kmap() patches are still causing issues?

Ira

[1] https://lore.kernel.org/lkml/2807E5FD2F6FDA4886F6618EAC48510E92EAB1DE@xxxxxxxxxxxxxxxxxxxxxxxxxxxx/
[2] https://lore.kernel.org/lkml/20200520195110.GH1118872@xxxxxxxxxx/

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