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Bug 770675 - pcie_aspm=off still required
Summary: pcie_aspm=off still required
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.1
Hardware: Unspecified
OS: Unspecified
unspecified
urgent
Target Milestone: rc
: ---
Assignee: Dave Wysochanski
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-12-28 09:53 UTC by Levente Farkas
Modified: 2013-03-12 03:25 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-03-12 03:25:59 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Levente Farkas 2011-12-28 09:53:07 UTC 
we've got supermicro motherboard with intel e100e and asus p4b55d motherboard with:
Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
both require the pcie_aspm=off kernel param since otherwise randomly drop the ethernet connection. what's more ifconfig, ethtool and and everything shows as eth0 is up and has ip address while it's not able to communicate. the worst thing in this case only the "unplug the power and plug it again" can help (ie. a 'simple' poweroff or reboot can't help).
kernel version: 2.6.32-131.21.1.el6x86_64
Comment 2 Dave Wysochanski 2011-12-29 18:10:35 UTC 
Hello,

We think you may have hit an existing issue.

Can you please install the following kernel and kernel-firmware test RPMs?
http://people.redhat.com/dwysocha/test/RHEL6/bz769626-pcie-aspm/kernel-2.6.32-220.el6.sf574687.1.x86_64.rpm
http://people.redhat.com/dwysocha/test/RHEL6/bz769626-pcie-aspm/kernel-firmware-2.6.32-220.el6.sf574687.1.noarch.rpm

Remember to remove the "pcie_aspm=off" from the kernel commandline of the test kernel in /etc/grub/grub.conf to ensure a valid test.

Please let us know if this test kernel resolves the issue for you.

Thanks.
Comment 3 Levente Farkas 2012-01-02 13:04:58 UTC 
seems to working but it's only turn out after a few days...
Comment 5 Dave Wysochanski 2012-01-10 19:57:51 UTC 
Hi Levente,

So are you confirming that you've removed the "pcie_aspm=off" from the kernel command line, and that the kernel provided here:
https://bugzilla.redhat.com/show_bug.cgi?id=770675#c2

works for you without the need for "pcie_aspm=off"?

Thanks.
Comment 6 Levente Farkas 2012-01-11 09:51:16 UTC 
unfortunately it's not happened always, so it's very hard to confirm.
this happened with one of our supermicro motherboards. it's 4 servers in production so we're unable to test on it. the other is the asus p4b55d board with integrated RTL8111. i test it on this one and seems to working ie. after the upgrade and a few days it's no longer happened...
Comment 8 RHEL Program Management 2012-05-03 05:37:12 UTC 
Since RHEL 6.3 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.
Comment 9 Dave Wysochanski 2013-03-11 13:46:38 UTC 
Hi Levente,

Are you comfortable saying this is resolved, or is there further action needed on this problem?  The fix for the existing issue I mentioned previously (https://bugzilla.redhat.com/show_bug.cgi?id=770675#c2) should in a kernels 2.6.32-279.el6 and above.

Thanks.
Comment 10 Levente Farkas 2013-03-11 13:48:32 UTC 
fixed. thanks.
Comment 11 Levente Farkas 2013-03-11 13:49:01 UTC 
fixed. thanks.
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