Re: BUG: using __this_cpu_read() in preemptible code in ip6_finish_output

From: Dmitry Vyukov
Date: Fri Apr 05 2019 - 08:36:34 EST


On Fri, Apr 5, 2019 at 12:09 PM Florian Westphal <fw@xxxxxxxxx> wrote:
>
> Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
> > On Wed, 3 Apr 2019 at 03:14, syzbot
> > <syzbot+51471b4aae195285a4a3@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > >
> > > syzbot has bisected this bug to:
> > >
> > > commit 97cdcf37b57e3f204be3000b9eab9686f38b4356
> > > Author: Florian Westphal <fw@xxxxxxxxx>
> > > Date: Mon Apr 1 14:42:13 2019 +0000
> > >
> > > net: place xmit recursion in softnet data
> >
> > I am seeing this as well on ARMv7 board booted from NFS root (exynos_defconfig):
>
> Sorry about this, the fix is now in net-next though:
> 28b05b92886871bdd ("net: use correct this_cpu primitive in dev_recursion_level")


Krzysztof, just in case, you can see the current bug status on
dashboard as well. E.g. for this one it says:

Fix commit: net: use correct this_cpu primitive in dev_recursion_level