[Linux-PowerEdge] Broadcom network cards losing connectivity sporadically

Christian Naumer cn at brain-biotech.de
Thu Feb 7 02:27:05 CST 2019


[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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> 

-- 
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

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