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SubjectRe: NFS/TCP crashes on MIPS/RBTX4927 in v4.20-rcX (bisected)
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 you had an legacy PCI NIC card, trying
with it might help finding the bug.

> 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.

IIRC, TX49 can raise an exception on unaligned access.

Atsushi Nemoto

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