Any comments from the iovec experts?
This is a regression in v4.20-rc1.
Thanks!
On Mon, Dec 17, 2018 at 8:01 PM Trond Myklebust wrote:
> On Mon, 2018-12-17 at 19:55 +0100, Geert Uytterhoeven wrote:
> > (For the newly added CCs, first message was
> >
On Mon, 2018-12-17 at 19:55 +0100, Geert Uytterhoeven wrote:
> Hi Trond,
>
> (For the newly added CCs, first message was
> https://lore.kernel.org/lkml/CAMuHMdVJr0PwvJg3FeTCy7vxuyY1=s1tplho7hpsozx4wz+...@mail.gmail.com/)
>
> > On Mon, Dec 17, 2018 at 3:51 PM Trond Myklebust <
> >
Hi Trond,
(For the newly added CCs, first message was
https://lore.kernel.org/lkml/CAMuHMdVJr0PwvJg3FeTCy7vxuyY1=s1tplho7hpsozx4wz+...@mail.gmail.com/)
> On Mon, Dec 17, 2018 at 3:51 PM Trond Myklebust
> wrote:
> > On Mon, 2018-12-17 at 15:03 +0100, Geert Uytterhoeven wrote:
> > > On
Hi Geert,
On Mon, 2018-12-17 at 15:03 +0100, Geert Uytterhoeven wrote:
> Hi Trond,
>
> On Wed, Dec 5, 2018 at 3:47 PM Geert Uytterhoeven <
> ge...@linux-m68k.org> wrote:
> > On Wed, Dec 5, 2018 at 2:45 PM Trond Myklebust <
> > tron...@hammerspace.com> wrote:
> > > On Wed, 2018-12-05 at 14:41
Hi Trond,
On Wed, Dec 5, 2018 at 3:47 PM Geert Uytterhoeven wrote:
> On Wed, Dec 5, 2018 at 2:45 PM Trond Myklebust
> wrote:
> > On Wed, 2018-12-05 at 14:41 +0100, Geert Uytterhoeven wrote:
> > > On Wed, Dec 5, 2018 at 2:11 PM Atsushi Nemoto
> > > wrote:
> > > > On Tue, 4 Dec 2018 14:53:07
Hi Nemoto-san,
On Fri, Dec 7, 2018 at 3:51 PM Atsushi Nemoto wrote:
> On Wed, 5 Dec 2018 14:41:30 +0100, Geert Uytterhoeven
> wrote:
> > My next guess is an unaligned access not using {get,put}_unaligned(), which
> > doesn't seem to work on tx4927, but doesn't cause an exception neither.
>
>
Hi Nemoto-san,
On Fri, Dec 7, 2018 at 3:51 PM Atsushi Nemoto wrote:
> On Wed, 5 Dec 2018 14:41:30 +0100, Geert Uytterhoeven
> wrote:
> > My next guess is an unaligned access not using {get,put}_unaligned(), which
> > doesn't seem to work on tx4927, but doesn't cause an exception neither.
>
>
On Wed, 5 Dec 2018 14:41:30 +0100, Geert Uytterhoeven
wrote:
> When using these options, I do see a slowdown in early boot, but the issue
> is still there.
Hmm, the NIC of the board is NE2000 variants, so DMA coherency will
not be an issue anyway. So strange ...
The board has a PCI slot. If
On Wed, 5 Dec 2018 14:41:30 +0100, Geert Uytterhoeven
wrote:
> When using these options, I do see a slowdown in early boot, but the issue
> is still there.
Hmm, the NIC of the board is NE2000 variants, so DMA coherency will
not be an issue anyway. So strange ...
The board has a PCI slot. If
Hi Trond,
On Wed, Dec 5, 2018 at 2:45 PM Trond Myklebust wrote:
> On Wed, 2018-12-05 at 14:41 +0100, Geert Uytterhoeven wrote:
> > On Wed, Dec 5, 2018 at 2:11 PM Atsushi Nemoto
> > wrote:
> > > On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven <
> > > ge...@linux-m68k.org> wrote:
> > > > I
Hi Trond,
On Wed, Dec 5, 2018 at 2:45 PM Trond Myklebust wrote:
> On Wed, 2018-12-05 at 14:41 +0100, Geert Uytterhoeven wrote:
> > On Wed, Dec 5, 2018 at 2:11 PM Atsushi Nemoto
> > wrote:
> > > On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven <
> > > ge...@linux-m68k.org> wrote:
> > > > I
On Wed, 2018-12-05 at 14:41 +0100, Geert Uytterhoeven wrote:
> Hi Nemoto-san,
>
> On Wed, Dec 5, 2018 at 2:11 PM Atsushi Nemoto
> wrote:
> > On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven <
> > ge...@linux-m68k.org> wrote:
> > > I found similar crashes in a report from 2006, but of course
On Wed, 2018-12-05 at 14:41 +0100, Geert Uytterhoeven wrote:
> Hi Nemoto-san,
>
> On Wed, Dec 5, 2018 at 2:11 PM Atsushi Nemoto
> wrote:
> > On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven <
> > ge...@linux-m68k.org> wrote:
> > > I found similar crashes in a report from 2006, but of course
Hi Nemoto-san,
On Wed, Dec 5, 2018 at 2:11 PM Atsushi Nemoto wrote:
> On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven
> wrote:
> > I found similar crashes in a report from 2006, but of course the code
> > has changed too much to apply the solution proposed there
> >
Hi Nemoto-san,
On Wed, Dec 5, 2018 at 2:11 PM Atsushi Nemoto wrote:
> On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven
> wrote:
> > I found similar crashes in a report from 2006, but of course the code
> > has changed too much to apply the solution proposed there
> >
Hi Geert,
On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven
wrote:
> I found similar crashes in a report from 2006, but of course the code
> has changed too much to apply the solution proposed there
> (https://www.linux-mips.org/archives/linux-mips/2006-09/msg00169.html).
>
> Userland is
Hi Geert,
On Tue, 4 Dec 2018 14:53:07 +0100, Geert Uytterhoeven
wrote:
> I found similar crashes in a report from 2006, but of course the code
> has changed too much to apply the solution proposed there
> (https://www.linux-mips.org/archives/linux-mips/2006-09/msg00169.html).
>
> Userland is
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