From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeroen Roovers Subject: Re: Ultra5 successful install - PGX64 issues Date: Fri, 20 Apr 2018 11:24:26 +0200 Message-ID: <20180420112426.3c8be653@wim.jer> References: <6a4e3490-dd3e-5832-43be-dba8211ce6e4@physik.fu-berlin.de> <16600fdc-6bba-1e2d-f106-560b8ea366c8@physik.fu-berlin.de> <9671ecea-1353-df1c-ebbd-24a5b7d3008b@oetec.com> <103f23dc-0d00-2ca1-fb98-271d1e03ad90@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: Helge Deller , debian-hppa@lists.debian.org, linux-parisc , Dennis Clarke To: Frank Scheiner Return-path: In-Reply-To: <103f23dc-0d00-2ca1-fb98-271d1e03ad90@web.de> Resent-Message-ID: List-Id: linux-parisc.vger.kernel.org List-Id: List-URL: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Archive: https://lists.debian.org/msgid-search/20180420112426.3c8be653@wim.jer On Thu, 19 Apr 2018 21:29:45 +0200 Frank Scheiner wrote: > Afterwards I found some older notes about this machine which mention > no issues during diskless operation with the very same configuration > (kernel and possibly also userland), which made me wonder, if there's > maybe an issue between the machine's built-in NIC and my used 1000 > Mbit network switch. And indeed, when connecting another 100 Mbit > network switch in between the 712/80 and the 1000 Mbit network switch > the issue seemed to be gone and the machine stayed accessible . > > But later this week I retried the 712/80 with the current Linux > kernel (4.15.x) and Debian userland and the issue hit me again, > although much later and despite the 100 Mbit network switch in > between. Looking at it I could see that the collision indicator was > active on the switch for the port used by the 712/80. I then > configured a singular port of the 1000 Mbit network switch to 10 Mbit > full duplex and attached the 712/80 to it. And then the issue again > seemed to be gone. But trying to install a package or updating the > package cache again quickly triggered it. You could try setting the internal NIC to half-duplex, or perhaps use a (passive) 10BASE-T hub instead of a switch if you cannot configure that internally, on the kernel command line, or doing it in userland is too late. Kind regards, jer