Messages in this thread | | | Date | Thu, 5 Dec 2019 14:23:14 -0500 | From | Rich Felker <> | Subject | Re: [PATCH v6 10/18] sh/tlb: Convert SH to generic mmu_gather |
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On Thu, Dec 05, 2019 at 01:24:02PM -0600, Rob Landley wrote: > On 12/4/19 4:47 AM, Peter Zijlstra wrote: > > On Tue, Dec 03, 2019 at 12:19:00PM +0100, Geert Uytterhoeven wrote: > >> Hoi Peter, > >> > >> On Tue, Feb 19, 2019 at 11:35 AM Peter Zijlstra <peterz@infradead.org> wrote: > >>> Generic mmu_gather provides everything SH needs (range tracking and > >>> cache coherency). > >>> > >>> Cc: Will Deacon <will.deacon@arm.com> > >>> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> > >>> Cc: Andrew Morton <akpm@linux-foundation.org> > >>> Cc: Nick Piggin <npiggin@gmail.com> > >>> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> > >>> Cc: Rich Felker <dalias@libc.org> > >>> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> > >> > >> I got remote access to an SH7722-based Migo-R again, which spews a long > >> sequence of BUGs during userspace startup. I've bisected this to commit > >> c5b27a889da92f4a ("sh/tlb: Convert SH to generic mmu_gather"). > > > > Whoopsy.. also, is this really the first time anybody booted an SH > > kernel in over a year ?!? > > No, but most people running this kind of hardware tend not to upgrade to current > kernels on a regular basis. > > The j-core guys tested the 5.3 release. I can't find an email about 5.4 so I > dunno if that's been tested yet?
Being that this code is about mmu, does it affect nommu machines? That's what we've got at present on the J-core side.
Rich
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