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

From: Randy Dunlap
Date: Mon Mar 19 2007 - 13:29:01 EST


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@xxxxxxxxxx>
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
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