netdev - Re: [PATCH net] net/smc: Prevent smc

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Message-ID: <2c8f208f-9b14-1c79-ae6a-0ef64010b70a@linux.ibm.com>
Date:   Thu, 16 Dec 2021 11:08:13 +0100
From:   Karsten Graul <kgraul@...ux.ibm.com>
To:     "D. Wythe" <alibuda@...ux.alibaba.com>
Cc:     kuba@...nel.org, davem@...emloft.net, netdev@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-rdma@...r.kernel.org
Subject: Re: [PATCH net] net/smc: Prevent smc_release() from long blocking

On 15/12/2021 13:29, D. Wythe wrote:
> From: "D. Wythe" <alibuda@...ux.alibaba.com>
> 
> In nginx/wrk benchmark, there's a hung problem with high probability
> on case likes that: (client will last several minutes to exit)
> 
> server: smc_run nginx
> 
> client: smc_run wrk -c 10000 -t 1 http://server
> 
> Client hangs with the following backtrace:

Good finding, thank you!

Acked-by: Karsten Graul <kgraul@...ux.ibm.com>