[Linux-PowerEdge] Broadcom network cards losing connectivity sporadically

Onno Zweers onno.zweers at surfsara.nl
Fri Feb 8 02:52:38 CST 2019


Hi,

We had intermittent connectivity loss with Intel X710 network adapters on some kernel versions (especially the newest Centos kernels). We worked around it by installing ElRepo kernels. Guess RHEL is a bit too conservative adopting bug fixes. Perhaps you could try it too; at least it might help to pinpoint the cause.

Kind regards
Onno

> Op 7 feb. 2019, om 09:27 heeft Christian Naumer <cn at brain-biotech.de> het volgende geschreven:
> 
> 
> [EXTERNAL EMAIL] 
> 
> Hello,
> have you ever found a solution to this? We have R6415 and also see this.
> 
> Regards
> 
> Christian
> 
> Am 21.06.18 um 09:01 schrieb Andreas Haupt:
>> Dear all,
>> 
>> we purchased six PE-740xd systems with integrated Broadcom 57416 dual port
>> 10Gbit network daughter cards. Systems are running Scientific Linux 7.4 -
>> with 7.5 kernel already. Nevertheless the problem has been repeatedly
>> showing up since we put the systems in production (with SL-7.3 at that
>> time).
>> 
>> Current kernel version:
>> 
>> [pascal05] /root # uname -a
>> Linux pascal05.zeuthen.desy.de 3.10.0-862.3.3.el7.x86_64 #1 SMP Thu Jun 14 15:28:39 CDT 2018 x86_64 x86_64 x86_64 GNU/Linux
>> 
>> All of these six systems lose network connectivity sporadically, although
>> one or two of them seem to be more affected than the others. Syslog is full
>> of these errors in this case:
>> 
>> Jun 21 08:12:51 pascal05 kernel: bnxt_en 0000:19:00.0 em1: Error (timeout: 500) msg {0x51 0x11f} len:0
>> Jun 21 08:12:51 pascal05 kernel: bnxt_en 0000:19:00.0 em1: hwrm_ring_free cp failed. rc:-1
>> 
>> Googling the problem I found only one other report on pastebin:
>> 
>> https://pastebin.com/DBhMSsaG
>> 
>> It's an exact copy of our problem - although it's an R640 in this case.
>> 
>> Anybody else seeing this? Solutions / mitigations to overcome this nasty
>> issue are most welcome!
>> 
>> Thanks in advance,
>> Andreas
>> 
>> 
>> _______________________________________________
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>> Linux-PowerEdge at dell.com
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>> 
> 
> -- 
> Dr. Christian Naumer
> Research Scientist
> Plattform-Koordinator Bioprozesstechnik
> 
> B.R.A.I.N Aktiengesellschaft
> Darmstaedter Str. 34-36, D-64673 Zwingenberg
> e-mail cn at brain-biotech.de, homepage www.brain-biotech.de
> fon +49-6251-9331-30  /   fax +49-6251-9331-11
> 
> Sitz der Gesellschaft: Zwingenberg/Bergstrasse
> Registergericht AG Darmstadt, HRB 24758
> Vorstand: Dr. Juergen Eck (Vorsitzender), Manfred Bender,
> Ludger Roedder
> Aufsichtsratsvorsitzender: Dr. Ludger Mueller
> 
> _______________________________________________
> Linux-PowerEdge mailing list
> Linux-PowerEdge at dell.com
> https://lists.us.dell.com/mailman/listinfo/linux-poweredge

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