linux-kernel - Re: [2/6] 2.6.21-rc4: known regressions

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Date:	Mon, 19 Mar 2007 10:07:57 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
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>,
	lenb@...nel.org, linux-acpi@...r.kernel.org
Subject: Re: [2/6] 2.6.21-rc4: known regressions

Adrian Bunk wrote:
> On Mon, Mar 19, 2007 at 09:06:57AM -0700, Randy Dunlap wrote:
>> On Sun, 18 Mar 2007 19:49:15 +0100 Adrian Bunk wrote:
>>
>>> This email lists some known regressions in Linus' tree compared to 2.6.20.
>>>
>>> If you find your name in the Cc header, you are either submitter of one
>>> of the bugs, maintainer of an affectected subsystem or driver, a patch
>>> of you caused a breakage or I'm considering you in any other way
>>> possibly involved with one or more of these issues.
>>>
>>> Due to the huge amount of recipients, please trim the Cc when answering.
>>>
>>>
>>> Subject    : x86_64: boot hangs unless CONFIG_PCIEPORTBUS=n and acpi=off
>>> References : http://bugzilla.kernel.org/show_bug.cgi?id=8162
>>> Submitter  : Randy Dunlap <randy.dunlap@...cle.com>
>>> Status     : unknown
>> Bug is rejected due to user error.
>> This seems to be a netconsole hang, not ACPI.
> 
> Thanks for this information.
> 
> Is the netconsole hang a regression?

I have to do more debugging to find out what is going on.  It may be
PCIEPORTBUS-related, but 2.6.20 or later now boot for me without
netconsole and hang when using netconsole.  The ending lines in the console
log are:

[   17.946918] PCI: Setting latency timer of device 0000:00:02.0 to 64
[   17.953211] assign_interrupt_mode Found MSI capability
[   17.958388] Allocate Port Service[0000:00:02.0:pcie00]
[   17.963565] Allocate Port Service[0000:00:02.0:pcie01]
[   17.968736] Allocate Port Service[0000:00:02.0:pcie02]
[   17.973903] Allocate Port Service[0000:00:02.0:pcie03]
[   17.979134] PCI: Setting latency timer of device 0000:00:03.0 to 64
[   17.985430] assign_interrupt_mode Found MSI capability
[   17.990565] Losing some ticks... checking if CPU frequency changed.
[   17.996857] Allocate Port Service[0000:00:03.0:pcie00]
[   18.002013] Allocate Port Service[0000:00:03.0:pcie01]
[   18.007175] Allocate Port Service[0000:00:03.0:pcie02]
[   18.012336] Allocate Port Service[0000:00:03.0:pcie03]
[   18.017552] PCI: Setting latency timer of device 0000:00:03.1 to 64
[   18.023848] assign_interrupt_mode Found MSI capability
[   18.029012] Allocate Port Service[0000:00:03.1:pcie00]


-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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