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Date: Thu, 24 Apr 2025 15:07:11 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Bui Quang Minh <minhquangbui99@gmail.com>
Cc: virtualization@lists.linux.dev, "Michael S. Tsirkin" <mst@redhat.com>,
 Jason Wang <jasowang@redhat.com>, Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
 Andrew Lunn <andrew+netdev@lunn.ch>, Eric Dumazet <edumazet@google.com>,
 Paolo Abeni <pabeni@redhat.com>, Alexei Starovoitov <ast@kernel.org>,
 Daniel Borkmann <daniel@iogearbox.net>, Jesper Dangaard Brouer
 <hawk@kernel.org>, John Fastabend <john.fastabend@gmail.com>, Eugenio
 =?UTF-8?B?UMOpcmV6?= <eperezma@redhat.com>, "David S. Miller"
 <davem@davemloft.net>, netdev@vger.kernel.org,
 linux-kernel@vger.kernel.org, bpf@vger.kernel.org
Subject: Re: [PATCH v4 4/4] selftests: net: add a virtio_net deadlock
 selftest
Message-ID: <20250424150711.7a255935@kernel.org>
In-Reply-To: <619bc46d-4acf-4c54-bd47-6b482fb76878@gmail.com>
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On Thu, 24 Apr 2025 17:33:49 +0700 Bui Quang Minh wrote:
> Yes, the kernel returns EBUSY. Loop and retry sounds good to me but it's 
> not easy to get the return code when using bkg(). So for simplicity, 
> I'll retry with sleep(1) 3 times when the xdp_helper fails.

I meant retry _inside_ the xdp_helper :)
That should be pretty easy?