[etherlab-users] e1000e driver freeze on kernel 4.9.80 rtai 5.1

[Gavin Lambert]

One of the first things you should try is to triage the patches by rolling them back and then adding them one at a time and testing until you find which patch appears to introduce the problem (or whether it exists in the baseline without any patches).  In most cases you can then try skipping that patch and applying subsequent ones until you find more problematic patches or you successfully apply the remainder.

Please share your findings so that we know where to look for the culprit.

(Also, if it manages to write some information to the syslog before freezing then that could be helpful.)

FWIW, I’ve been using PREEMPT_RT kernel 4.9.51 with e1000e for a long while without issues.

From: René Reimann
Sent: Tuesday, 25 September 2018 19:28
To: Gianluca Medini <gianluca.medini at gmail.com>; etherlab-users at etherlab.org
Subject: Re: [etherlab-users] e1000e driver freeze on kernel 4.9.80 rtai 5.1

Hello,

we are experiencing the same problem with rtai 5.1 kernel 4.9.80 and rtai 5.0 kernel.
The system freezes randomly after several minutes with the e1000e and the unofficial patches.
Does somebody have an idea how to fix this?

Best Regards
René Reimann
On 23.09.2018 22:29, Gianluca Medini wrote:
Hi all, I've tested the driver e1000e on rtai 5.1 kernel 4.9.80.
I'm using Gavin Lambert unofficial patches set that includes patched drivers for 4.9.80.
The system  freezes randomly after some  minutes.
The Igb driver on same configuration works perfectly.

Someone have experienced the same issue?
GM




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