[PATCH v2] net/pcap: fix timeout of stopping device

[Stephen Hemminger]

On Tue,  6 Sep 2022 16:05:11 +0800
Yiding Zhou <yidingx.zhou at intel.com> wrote:

> The pcap file will be synchronized to the disk when stopping the device.
> It takes a long time if the file is large that would cause the
> 'detach sync request' timeout when the device is closed under multi-process
> scenario.
> 
> This commit fixes the issue by using alarm handler to release dumper.
> 
> Fixes: 0ecfb6c04d54 ("net/pcap: move handler to process private")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Yiding Zhou <yidingx.zhou at intel.com>


I think you need to redesign the handshake if this the case.
Forcing 30 second delay at the end of all uses of pcap is not acceptable.