On 2020-08-20 18:51, Maciej Fijalkowski wrote:
On Thu, Aug 20, 2020 at 05:13:16PM +0200, Björn Töpel wrote:
On Tue, 18 Aug 2020 at 16:04, Björn Töpel wrote:
On Fri, 17 Jul 2020 at 08:24, Li RongQing wrote:
This fixes ice/i40e/ixgbe/ixgbevf_rx_buffer_flip in
copy mode xdp that can lead to d
On Thu, Aug 20, 2020 at 05:13:16PM +0200, Björn Töpel wrote:
> On Tue, 18 Aug 2020 at 16:04, Björn Töpel wrote:
> >
> > On Fri, 17 Jul 2020 at 08:24, Li RongQing wrote:
> > >
> > > This fixes ice/i40e/ixgbe/ixgbevf_rx_buffer_flip in
> > > copy mode xdp that can lead to data corruption.
> > >
> >
On Tue, 18 Aug 2020 at 16:04, Björn Töpel wrote:
>
> On Fri, 17 Jul 2020 at 08:24, Li RongQing wrote:
> >
> > This fixes ice/i40e/ixgbe/ixgbevf_rx_buffer_flip in
> > copy mode xdp that can lead to data corruption.
> >
> > I split two patches, since i40e/xgbe/ixgbevf supports xsk
> > receiving fro
On 2020-08-19 10:31, Björn Töpel wrote:
[...]
But please, try to reproduce with a newer kernel.
Also, you are *sure* that you're touching stale data? Have you tried
running with CONFIG_DEBUG_PAGEALLOC and CONFIG_PAGE_POISONING?
Björn
] intel/xdp fixes for fliping rx buffer
On 2020-08-19 03:37, Li,Rongqing wrote:
[...]
> Hi:
>
> Thanks for your explanation.
>
> But we can reproduce this bug
>
> We use ebpf to redirect only-Vxlan packets to non-zerocopy AF_XDP, First we
see panic on tcp stack, in
> -邮件原件-
> 发件人: Björn Töpel [mailto:bjorn.to...@intel.com]
> 发送时间: 2020年8月19日 14:45
> 收件人: Li,Rongqing ; Björn Töpel
>
> 抄送: Netdev ; intel-wired-lan
> ; Karlsson, Magnus
> ; bpf ; Maciej Fijalkowski
> ; Piotr ; Maciej
>
> 主题: Re: 答复: [Intel-wired-lan
On 2020-08-19 03:37, Li,Rongqing wrote:
[...]
> Hi:
>
> Thanks for your explanation.
>
> But we can reproduce this bug
>
> We use ebpf to redirect only-Vxlan packets to non-zerocopy AF_XDP,
First we see panic on tcp stack, in tcp_collapse: BUG_ON(offset < 0); it
is very hard to reproduce.
>
> T
> -邮件原件-
> 发件人: Björn Töpel [mailto:bjorn.to...@gmail.com]
> 发送时间: 2020年8月18日 22:05
> 收件人: Li,Rongqing
> 抄送: Netdev ; intel-wired-lan
> ; Karlsson, Magnus
> ; Björn Töpel ; bpf
> ; Maciej Fijalkowski ;
> Piotr ; Maciej
> 主题: Re: [Intel-wired-lan] [PATCH 0/
On Fri, 17 Jul 2020 at 08:24, Li RongQing wrote:
>
> This fixes ice/i40e/ixgbe/ixgbevf_rx_buffer_flip in
> copy mode xdp that can lead to data corruption.
>
> I split two patches, since i40e/xgbe/ixgbevf supports xsk
> receiving from 4.18, put their fixes in a patch
>
Li, sorry for the looong lat
