From: Lee Duncan <LDuncan@suse.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>,
"wubo (T)" <wubo40@huawei.com>
Cc: "cleech@redhat.com" <cleech@redhat.com>,
"jejb@linux.ibm.com" <jejb@linux.ibm.com>,
"open-iscsi@googlegroups.com" <open-iscsi@googlegroups.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>,
Mingfangsen <mingfangsen@huawei.com>,
"liuzhiqiang (I)" <liuzhiqiang26@huawei.com>
Subject: Re: [PATCH v3] scsi: avoid potential deadloop in iscsi_if_rx func
Date: Wed, 13 Nov 2019 03:29:31 +0000 [thread overview]
Message-ID: <d0d2bcf7-9d9d-40f9-335d-ebcdafdf9969@suse.com> (raw)
In-Reply-To: <yq18soksgji.fsf@oracle.com>
On 11/12/19 5:37 PM, Martin K. Petersen wrote:
>
>> In iscsi_if_rx func, after receiving one request through
>> iscsi_if_recv_msg func, iscsi_if_send_reply will be called to try to
>> reply the request in do-loop. If the return of iscsi_if_send_reply
>> func return -EAGAIN all the time, one deadloop will occur.
>>
>> For example, a client only send msg without calling recvmsg func,
>> then it will result in the watchdog soft lockup.
>> The details are given as follows,
>
> Lee/Chris/Ulrich: Please review!
>
I believe I already added my Reviewed-by tag. Do you mean past that?
Perhaps I missed something.
--
Lee Duncan
next prev parent reply other threads:[~2019-11-13 3:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-31 6:17 [PATCH v3] scsi: avoid potential deadloop in iscsi_if_rx func wubo (T)
2019-11-06 1:08 ` Zhiqiang Liu
2019-11-13 1:37 ` Martin K. Petersen
2019-11-13 3:29 ` Lee Duncan [this message]
2019-11-13 17:52 ` Lee Duncan
-- strict thread matches above, loose matches on Subject: below --
2019-11-14 12:46 wubo (T)
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