linux-kernel - Re: [2/6] 2.6.21-rc2: known regressions

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Date:	Thu, 8 Mar 2007 14:31:43 +0200
From:	"Michael S. Tsirkin" <mst@...lanox.co.il>
To:	Adrian Bunk <bunk@...sta.de>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	Jeff Chua <jeff.chua.linux@...il.com>, pavel@...e.cz,
	linux-pm@...ts.osdl.org, lenb@...nel.org,
	linux-acpi@...r.kernel.org, luming.yu@...el.com,
	Arkadiusz Miskiewicz <arekm@...en.pl>,
	Konstantin Karasyov <konstantin.a.karasyov@...el.com>,
	greg@...ah.com, linux-usb-devel@...ts.sourceforge.net,
	Thomas Meyer <thomas.mey@....de>, Meelis Roos <mroos@...ux.ee>,
	Alexey Starikovskiy <alexey.y.starikovskiy@...ux.intel.com>,
	Janosch Machowinski <jmachowinski@....de>,
	vladimir.p.lebedev@...el.com,
	Ash Milsted <thatistosayiseenem@...ab.com>,
	dmitry.torokhov@...il.com, linux-input@...ey.karlin.mff.cuni.cz
Subject: Re: [2/6] 2.6.21-rc2: known regressions

> Quoting Adrian Bunk <bunk@...sta.de>:
> Subject: [2/6] 2.6.21-rc2: known regressions
> 
> Subject    : ThinkPad T60: no screen after suspend to RAM
> References : http://lkml.org/lkml/2007/2/22/391
> Submitter  : Michael S. Tsirkin <mst@...lanox.co.il>
> Status     : unknown

Here's the status with -rc3: better, but still does not work as well as 2.6.20.

1. Switching to console VT, and running s2ram, I am able to resume to console
   (I have not tested with echo mem > /sys/power/state yet, both work OK
    with 2.6.20)
   This seems to take about as long as with 2.6.20.
   During this time, I see some messages on console (see attached log)

2. First disk access after resume takes a couple of minutes
   (seemed instant with 2.6.20) during this time no new messages show on console

3. When I switch to X (CTRL-ALT-F7), X hangs after drawing a couple of windows
   after waiting for some 10 min, I rebooted.
   no new messages showed up in /var/log/messages

log attached
   
-- 
MST


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