From: Bob Pearson <rpearsonhpe@gmail.com>
To: Bart Van Assche <bvanassche@acm.org>,
linux-rdma@vger.kernel.org, jgg@nvidia.com
Subject: Re: srp/002 hang in blktests
Date: Tue, 24 Oct 2023 12:05:59 -0500 [thread overview]
Message-ID: <b7d14c57-9d3c-46c6-adb1-a3d892b9a634@gmail.com> (raw)
In-Reply-To: <119304fc-a61d-4567-8d23-edb69676fad5@acm.org>
On 10/24/23 11:31, Bart Van Assche wrote:
> On 10/23/23 13:59, Bart Van Assche wrote:
>> On 10/23/23 13:41, Bob Pearson wrote:
>>> On 10/23/23 15:21, Bart Van Assche wrote:
>>>> On 10/23/23 11:29, Bob Pearson wrote:
>>>>> Lots of work. Thanks!! Did you mean 6.6 instead of 6.5? I assume
>>>>> you are running an Ubuntu 23.10 VM and not bare metal while I am
>>>>> not.
>>>>
>>>> Yes, I meant 6.6 instead of 6.5. I'm indeed running Ubuntu 23.10
>>>> inside a VM. BTW, the test is still running and has just reached 231
>>>> iterations
>>>> ...
>>>
>>> Very good news! Maybe we can let rxe out of the doghouse.
>>
>> Is there perhaps a misunderstanding? I ran my tests with the
>> soft-iWARP driver. Did you run your tests with the RXE driver?
>
> (replying to my own email)
>
> With the RXE driver I see a hang after 143 iterations in the same VM
> (Ubuntu 23.10 VM, v6.6-rc7 kernel with kernel debugging disabled). No
> SRP paths are available so the hang is not caused by a multipathd bug:
>
> # lsscsi
> [0:0:0:0] cd/dvd QEMU QEMU DVD-ROM 2.5+ /dev/sr0
> [6:0:0:0] disk Linux scsi_debug 0191 /dev/sda
>
> I couldn't obtain more information because kernel debugging is disabled.
> But it is suspicious that this hang happens with the RXE driver and not
> with the soft-iWARP driver.
>
> Bart.
>
Bart,
Very interesting. But, 143 is a new record for rxe. Your siw results are
consistent with what I saw. I only saw siw hangs with the debug kernel.
Bob
prev parent reply other threads:[~2023-10-24 17:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-20 22:48 srp/002 hang in blktests Bob Pearson
2023-10-23 18:18 ` Bart Van Assche
2023-10-23 18:29 ` Bob Pearson
2023-10-23 20:21 ` Bart Van Assche
2023-10-23 20:41 ` Bob Pearson
2023-10-23 20:59 ` Bart Van Assche
2023-10-24 16:31 ` Bart Van Assche
2023-10-24 17:05 ` Bob Pearson [this message]
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