e1000 hard hang in hardy

[Brad Langhorst]

Binary package hint: linux-source-2.6.24

When using my computer (lenovo T60p) connected to the a 100Mbit bit network I experience apparently random hangs, in which alt+sysreq does not work.

Nothing is written to the logs.

kernel is
 linux-image-2.6.24-8-generic

After comparing symptoms with another hardy user on this hardware we isolated the e1000 driver as the souce of the problem.
I've operated normally with a pcmcia network card for two days now without a hang, I would normally have experienced at least 1 hang during that time.

I don't have a serial port on this machine so I don't know how to debug further.

I'm not able to find a report of this issue on the kernel bugzilla.

note that this is not the same as #106869 or #30476

[Leann Ogasawara (leannogasawara)]

Hi Brad,

Care to test the latest 2.6.24-10 kernel and see if it helps. If the issue still exists, per the kernel team's bug policy, can you please attach the following information. Please be sure to attach each file as a separate attachment.

* uname -a > uname-a.log
* cat /proc/version_signature > version.log
* dmesg > dmesg.log
* sudo lspci -vvnn > lspci-vvnn.log

For more information regarding the kernel team bug policy, please refer to https://wiki.ubuntu.com/KernelTeamBugPolicies . Thanks again and we appreciate your help and feedback.

[Brad Langhorst (brad-langhorst)]

I've just updated to 2.6.24-10, and expect to see the problem as there is nothing in the changelog about e1000, and the version number reported in dmesg (7.3.20-k2-NAPI)
is unchanged.

here's a link to the kernel change log for e1000, a few commits look interesting
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=history;f=drivers/net/e1000;hb=HEAD

[Brad Langhorst (brad-langhorst)]

It looks like the new kernel did fixthe problem...
22:10:46 up 1 day, 13:02, 5 users, load average: 0.92, 0.62, 0.35

i'm going to go ahead and close it up.