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From: "Brian & Chamaigne Scamman" <scammanbc@earthlink.net>
To: 'Tejun Heo' <htejun@gmail.com>, 'Mark Lord' <liml@rtr.ca>
Cc: jeff@garzik.org, linux-ide@vger.kernel.org
Subject: RE: [PATCHSET #upstream-fixes] git tree available
Date: Tue, 20 May 2008 08:08:35 -0400	[thread overview]
Message-ID: <006f01c8ba72$3ac5d1a0$6917a8c0@parents> (raw)
In-Reply-To: <4832535B.1080505@gmail.com>

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).

-Brian


  parent reply	other threads:[~2008-05-20 12:08 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 [this message]
2008-05-20 14:50           ` Tejun Heo

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