Re: 4.3-rc3 Regression: NFS access stall by commit 6ae459bdaaee

From: Pravin Shelar
Date: Mon Sep 28 2015 - 20:35:11 EST


On Mon, Sep 28, 2015 at 6:12 AM, Takashi Iwai <tiwai@xxxxxxx> wrote:
> [I resent this since the previous mail didn't go out properly, as it
> seems; apologies if you already read it, please disregard]
>
> Hi,
>
> I noticed that NFS access from my workstation slowed down drastically,
> almost stalls, with the fresh 4.3-rc3. There are no particular kernel
> errors / warnings.
>
> Then I performed git section, and it leaded to the commit:
> 6ae459bdaaeebc632b16e54dcbabb490c6931d61
> skbuff: Fix skb checksum flag on skb pull
>
> Reverting this commit from 4.3-rc3 fixed the issue indeed.
>
> Could you take a look at this? I added Trond to Cc in case he might
> already know of it.
>
I send out fix for similar issue. Can you try the posted patch.
https://patchwork.ozlabs.org/patch/523632/
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