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

From: Florian Westphal
Date: Fri Apr 05 2019 - 06:09:30 EST


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")