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From: Tejun Heo <htejun@gmail.com>
To: Brian & Chamaigne Scamman <scammanbc@earthlink.net>
Cc: 'Mark Lord' <liml@rtr.ca>, jeff@garzik.org, linux-ide@vger.kernel.org
Subject: Re: [PATCHSET #upstream-fixes] git tree available
Date: Tue, 20 May 2008 23:50:10 +0900	[thread overview]
Message-ID: <4832E522.50107@gmail.com> (raw)
In-Reply-To: <006f01c8ba72$3ac5d1a0$6917a8c0@parents>

Brian & Chamaigne Scamman wrote:
> Tejun Heo wrote:
>> Can you please describe what you did exactly?  sil3726/4726 has some 
>> problems when its first fan out port goes online and offline while it's 
>> powered up.  You want to keep it occupied at all times.
>>
> Here's the current setup:
> - PMP powered via computer's power supply; on with computer
> - SSD and bridges powered via computer's power supply; on with computer
> - FC9 with new 2.6.26-rc2-hotplug-patches installed and booted
> - Once computer is booted, login, open a terminal and dmesg -c
> For the case which fails:
> - plug SSD drive/bridge into PMP port 0
> - plug eSata cable into PMP
> - plug eSata cable into eSata port on controller
> - watch the softreset timeout
> For the case which works:
> - plug eSata cable into PMP
> - plug eSata cable into eSata port on controller
> - watch the PMP become recognized
> - plug SSD drive/bridge into PMP port 0
> - watch the SSD drive become recognized
> 
> Steps above are repeatable. Previously I was applying power to the PMP while
> the drives were attached (PMP, bridges and drives all receiving power at the
> same time) and then plugging in the eSata cable, but this case always failed
> as well.
> 
>> Also, does putting sslep(5) right before followup-SRST help?
>>
> I'll look at adding the sslep line and the new patch (independently).

Please try the patch.  I think that should work.

-- 
tejun

      reply	other threads:[~2008-05-20 14:50 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-18 16:15 [PATCHSET #upstream-fixes] libata: fix a bunch of PMP related problems Tejun Heo
2008-05-18 16:15 ` [PATCH 01/10] libata: fix sata_link_hardreset() @online out parameter handling Tejun Heo
2008-05-19 21:53   ` Jeff Garzik
2008-05-18 16:15 ` [PATCH 02/10] libata: reorganize ata_eh_reset() no reset method path Tejun Heo
2008-05-18 16:15 ` [PATCH 03/10] libata: move reset freeze/thaw handling into ata_eh_reset() Tejun Heo
2008-05-18 16:15 ` [PATCH 04/10] libata: kill hotplug related race condition Tejun Heo
2008-05-18 16:15 ` [PATCH 05/10] libata: ignore recovered PHY errors Tejun Heo
2008-05-19 21:50   ` Jeff Garzik
2008-05-18 16:15 ` [PATCH 06/10] libata: increase PMP register access timeout to 3s Tejun Heo
2008-05-18 16:15 ` [PATCH 07/10] libata: make sure PMP notification is turned off during recovery Tejun Heo
2008-05-18 16:15 ` [PATCH 08/10] libata: don't schedule LPM action seperately during probing Tejun Heo
2008-05-18 16:15 ` [PATCH 09/10] sata_sil24: don't use NCQ if marvell 4140 PMP is attached Tejun Heo
2008-05-18 21:14   ` Mark Lord
2008-05-18 16:15 ` [PATCH 10/10] libata: ignore SIMG4726 config pseudo device Tejun Heo
2008-05-18 16:29 ` [PATCHSET #upstream-fixes] git tree available Tejun Heo
2008-05-20  1:35   ` Brian & Chamaigne Scamman
2008-05-20  2:58     ` Mark Lord
2008-05-20  4:28       ` Tejun Heo
2008-05-20  4:43         ` Tejun Heo
2008-05-21  1:32           ` Brian & Chamaigne Scamman
2008-05-21  4:59             ` Tejun Heo
2008-05-21 11:14               ` Brian & Chamaigne Scamman
2008-05-21 19:42               ` Brian & Chamaigne Scamman
2008-05-22  0:40                 ` Tejun Heo
2008-05-23  0:49                   ` Brian & Chamaigne Scamman
2008-05-23  1:04                     ` Tejun Heo
2008-05-29  3:06                       ` Tejun Heo
2008-05-29  3:11                         ` Brian & Chamaigne Scamman
2008-05-20 12:08         ` Brian & Chamaigne Scamman
2008-05-20 14:50           ` Tejun Heo [this message]

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