netdev - Re: [PATCH net] net/smc: fix potential sleeping issue in smc_switch

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Message-ID: <0cbb1082-8f5f-4887-b13c-802c2bbcca36@linux.ibm.com>
Date: Thu, 18 Apr 2024 09:50:24 +0200
From: Wenjia Zhang <wenjia@...ux.ibm.com>
To: shaozhengchao <shaozhengchao@...wei.com>,
        Guangguan Wang <guangguan.wang@...ux.alibaba.com>,
        linux-s390@...r.kernel.org, netdev@...r.kernel.org,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc: jaka@...ux.ibm.com, alibuda@...ux.alibaba.com, tonylu@...ux.alibaba.com,
        guwen@...ux.alibaba.com, weiyongjun1@...wei.com, yuehaibing@...wei.com,
        tangchengchang@...wei.com
Subject: Re: [PATCH net] net/smc: fix potential sleeping issue in
 smc_switch_conns



On 18.04.24 03:48, shaozhengchao wrote:
> 
> 
> On 2024/4/17 23:23, Wenjia Zhang wrote:
>>
>>
>> On 17.04.24 10:29, shaozhengchao wrote:
>>>
>>> Hi Guangguan:
>>>    Thank you for your review. When I used the hns driver, I ran into the
>>> problem of "scheduling while atomic". But the problem was tested on the
>>> 5.10 kernel branch, and I'm still trying to reproduce it using the
>>> mainline.
>>>
>>> Zhengchao Shao
>>>
>>
> Hi Wenjia:
>    I will try to reproduce it. 

Thanks!

In addition, the last time I sent you a
> issue about the smc-tool, do you have any idea?
>

mhhh, I just see a patch from you on smc_hash_sk/smc_unhash_sk, and it 
is already applied during my vacation and it does look good to me. If 
you mean others, could you send me the link again please, I mightbe have 
missed out on it.

> Thank you
> Zhengchao Shao
>> Could you please try to reproduce the bug with the latest kernel? And 
>> show more details (e.g. kernel log) on this bug?
>>
>> Thanks,
>> Wenjia
>