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SubjectRe: [PATCH] arch/{mips,sparc,microblaze,powerpc}: Don't enable pagefault/preempt twice
On Wed, Jun 03, 2020 at 04:44:17PM -0700, Guenter Roeck wrote:
> On 6/3/20 2:14 PM, Ira Weiny wrote:
> > 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@intel.com> 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?

sparc32 UP and microblaze work for me with next-20200603, but I didn't
test other architectures.

> For my part, all I can say is that -next is in pretty bad shape right now.
> The summary of my tests says:
>
> Build results:
> total: 151 pass: 130 fail: 21
> Qemu test results:
> total: 430 pass: 375 fail: 55
>
> sparc32 smp images in next-20200603 still crash for me with a spinlock
> recursion.

I think this is because Will's fixes [1] are not yet in -next.

> s390 images hang early in boot. Several others (alpha, arm64,
> various ppc) don't even compile. I can run some more bisects over time,
> but this is becoming a full-time job :-(.
>
> Guenter

[1] https://lore.kernel.org/lkml/20200526173302.377-1-will@kernel.org
--
Sincerely yours,
Mike.

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