From: Bob Ciotti <Bob.Ciotti-NSQ8wuThN14@public.gmane.org>
To: Ira Weiny <weiny2-i2BcT+NCU+M@public.gmane.org>
Cc: Hal Rosenstock
<hal-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>,
"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: watchdog timer
Date: Mon, 21 May 2012 17:51:29 -0700 [thread overview]
Message-ID: <4FBAE311.3080909@nasa.gov> (raw)
In-Reply-To: <20120521100831.a434152f.weiny2-i2BcT+NCU+M@public.gmane.org>
I believe the issue (not certain - need more test time) was caused by not specifying all vlarb entries,
even those unused. So, QoS on, but incomplete specification. OFED HowTo examples do this, so I figured it
was OK.
Its also possible that some software may have been specifying an un-configured SL - without my permission ;)
Maybe vl 0 was loosing its turn in arbitration and got starved for > +3%/-51% 400,000 symbols when the HCA
was passing back flow control update?
Unfortunately - it usually worked, except under load.
Think its working now.
bob
btw Ira, you get to trade every ! into a beer the next time I see you.
!!! - there, an even 6 pack
On 05/21/2012 10:08 AM, Ira Weiny wrote:
> On Fri, 18 May 2012 11:27:40 -0400
> Hal Rosenstock<hal-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org> wrote:
>
>> Ira,
>>
>> On 5/18/2012 11:10 AM, Ira Weiny wrote:
>>> In our situation the FW in the switch had a bug.
>>
>> Do you recall what the bug was, which firmware version had the bug and
>> which one fixed it ?
>
> I don't recall but it was not Mellanox hardware.
>
> Ira
>
>>
>> -- Hal
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
>> the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
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>
>
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next prev parent reply other threads:[~2012-05-22 0:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-18 6:05 watchdog timer Bob Ciotti
[not found] ` <4FB5E69A.7010602-NSQ8wuThN14@public.gmane.org>
2012-05-18 13:07 ` Hal Rosenstock
[not found] ` <4FB649A6.2060602-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2012-05-18 14:35 ` Bob Ciotti
[not found] ` <4FB65E30.4070805-NSQ8wuThN14@public.gmane.org>
2012-05-18 15:10 ` Ira Weiny
[not found] ` <20120518081029.01004d2c.weiny2-i2BcT+NCU+M@public.gmane.org>
2012-05-18 15:27 ` Hal Rosenstock
[not found] ` <4FB66A6C.1060703-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2012-05-21 17:08 ` Ira Weiny
[not found] ` <20120521100831.a434152f.weiny2-i2BcT+NCU+M@public.gmane.org>
2012-05-22 0:51 ` Bob Ciotti [this message]
[not found] ` <4FBAE311.3080909-NSQ8wuThN14@public.gmane.org>
2012-05-22 15:55 ` Ira Weiny
2012-05-18 19:10 ` Bob Ciotti
2012-05-18 15:17 ` Hal Rosenstock
[not found] ` <4FB66817.6050106-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2012-05-18 16:49 ` Bob Ciotti
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