netdev - Re: Crash when receiving FIN-ACK in TCP_FIN

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Message-ID: <d09e2d5d-ccad-5add-59c5-a0d2058644e3@gmail.com>
Date:   Mon, 21 Oct 2019 07:17:39 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>,
        netdev@...r.kernel.org, ycheng@...gle.com, eric.dumazet@...il.com,
        ncardwell@...gle.com
Subject: Re: Crash when receiving FIN-ACK in TCP_FIN_WAIT1 state



On 10/20/19 1:25 PM, Subash Abhinov Kasiviswanathan wrote:
> We are seeing a crash in the TCP ACK codepath often in our regression
> racks with an ARM64 device with 4.19 based kernel.
> 

Please give us a pointer to the exact git tree and sha1.

I do not analyze TCP stack problems without an exact starting point,
or at least a crystal ball, which I do not have.