LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Tejun Heo <htejun@gmail.com>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	linux-kernel@vger.kernel.org, Jeff Garzik <jeff@garzik.org>,
	linux-ide@vger.kernel.org
Subject: Re: Unknown SATA PIIX PCI device ID 0x29b6
Date: Mon, 10 Mar 2008 09:50:52 +0900	[thread overview]
Message-ID: <47D485EC.1060103@gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0803092221560.7385@axis700.grange>

Guennadi Liakhovetski wrote:
> On Sun, 9 Mar 2008, Tejun Heo wrote:
> 
>> Guennadi Liakhovetski wrote:
>>> On Fri, 7 Mar 2008, Tejun Heo wrote:
>>>
>>>>> Looks like almost a minute to me? On another occurence I see about 1.5 
>>>>> minutes, then "port is slow to respond, please be patient (Status 0x80)" 
>>>>> has been repeated 3 times. On cold-plug also 3 times, I think, about the 
>>>>> same time then (time is not updated in the log).
>>>> I see.  Does the attached patch make any difference?
>>> diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
>>> index 4fbcce7..abebdcc 100644
>>> --- a/drivers/ata/libata-core.c
>>> +++ b/drivers/ata/libata-core.c
>>> @@ -6712,6 +6712,7 @@ int sata_link_init_spd(struct ata_link *link)
>>>  	spd = (scontrol >> 4) & 0xf;
>>>  	if (spd)
>>>  		link->hw_sata_spd_limit &= (1 << spd) - 1;
>>> +	link->hw_sata_spd_limit = 1;
>>>  
>>>  	ata_force_spd_limit(link);
>>>  
>>> Hm, this would force 1.5Gbps on all ports and devices, right? Cannot I 
>>> just boot with "libata.force=4:1.5Gbps"?
>> Yeap, you can do that.  Wasn't sure you were using .25-rc or .24.
> 
> Yctually it was 2.6.24 before, rebuilt 2.6.25-rc4, booted as above, it did 
> say:
> 
> ata4: FORCE: PHY spd limit set to 1.5Gbps
> 
> but hot-plugging the drive still took 50 seconds to recover.

How about cold plugging?

-- 
tejun

  reply	other threads:[~2008-03-10  0:51 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-28 22:37 Guennadi Liakhovetski
2008-02-28 22:56 ` Alan Cox
2008-02-28 23:33   ` Guennadi Liakhovetski
2008-03-06  8:39     ` Tejun Heo
2008-03-06 11:57       ` Guennadi Liakhovetski
2008-03-06 18:02         ` Gaston, Jason D
2008-03-06 18:05           ` Jeff Garzik
2008-03-06 18:40             ` Guennadi Liakhovetski
2008-03-07  4:51         ` Tejun Heo
2008-03-08 22:47           ` Guennadi Liakhovetski
2008-03-09  5:14             ` Tejun Heo
2008-03-09 21:24               ` Guennadi Liakhovetski
2008-03-10  0:50                 ` Tejun Heo [this message]
2008-03-10  7:22                   ` Guennadi Liakhovetski
2008-03-10 13:05                     ` Tejun Heo
2008-03-11 10:11                       ` Guennadi Liakhovetski
2008-03-11 10:35                         ` Tejun Heo
2008-03-11 11:13                           ` Guennadi Liakhovetski
2008-03-11 11:37                             ` Tejun Heo
2008-02-29  0:23   ` Felix Miata
2008-02-29  3:50     ` Gaston, Jason D

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=47D485EC.1060103@gmail.com \
    --to=htejun@gmail.com \
    --cc=alan@lxorguk.ukuu.org.uk \
    --cc=g.liakhovetski@gmx.de \
    --cc=jeff@garzik.org \
    --cc=linux-ide@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --subject='Re: Unknown SATA PIIX PCI device ID 0x29b6' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).