netdev - RE: [1/2] 2.6.21-rc7: known regressions

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Message-ID: <36D9DB17C6DE9E40B059440DB8D95F5202505C7E@orsmsx418.amr.corp.intel.com>
Date:	Mon, 16 Apr 2007 17:14:40 -0700
From:	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
To:	"Adrian Bunk" <bunk@...sta.de>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"Hans-Georg Rist" <hg.rist@....de>, <perex@...e.cz>,
	<alsa-devel@...a-project.org>,
	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>,
	"Stephen Clark" <Stephen.Clark@...lark.us>, <jgarzik@...ox.com>,
	<linux-ide@...r.kernel.org>,
	"Michal Jaegermann" <michal@...pspace.math.ualberta.ca>,
	<lenb@...nel.org>, <linux-acpi@...r.kernel.org>,
	<netdev@...r.kernel.org>, "Dave Jones" <davej@...hat.com>,
	<e1000-devel@...ts.sourceforge.net>, "Ingo Molnar" <mingo@...e.hu>,
	"Ayaz Abdulla" <aabdulla@...dia.com>,
	"David Miller" <davem@...emloft.net>, "Andi Kleen" <ak@...e.de>,
	"Oliver Neukum" <oneukum@...e.de>, <greg@...ah.com>,
	<linux-usb-devel@...ts.sourceforge.net>,
	"CIJOML" <cijoml@...ny.cz>,
	"Markus Rechberger" <markus.rechberger@....com>,
	<v4l-dvb-maintainer@...uxtv.org>
Subject: RE: [1/2] 2.6.21-rc7: known regressions

Adrian Bunk wrote:
> Subject    : laptops with e1000: lockups
> References :
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=229603 
> Submitter  : Dave Jones <davej@...hat.com>
> Handled-By : Jesse Brandeburg <jesse.brandeburg@...el.com>
> Status     : problem is being debugged

this is being actively debugged, here is what we have so far:
o v2.6.20: crashes during boot, unless noacpi and nousb bootparams used
o v2.6.21-rc6: some userspace issue, crashes just after root mount
without init=/bin/bash
o v2.6.2X: serial console in docking station spews goo at all speeds
with console=ttyS0,bbbbn8 . work continues on this, as we don't know if
there are kernel panic messages during the hard lock.
o fedora 7 test kernel 2948: boots okay, have been using this as only
truly working kernel on this machine.

one reproduction of the problem was had with scp -l 5000 <file> <remote>
when linked at 100Mb/Full.  Tried probably 20 other times same test with
no repro, ugh.

Otherwise, slogging through continues.  We are actively working on this
in case it *is* an e1000 issue.  Right now the repro is so unlikely we
could hardly tell if we fixed it.

Jesse

PS .config available on request
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