From owner-freebsd-current Wed Mar 4 19:42:54 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA13246 for freebsd-current-outgoing; Wed, 4 Mar 1998 19:42:54 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from ren.dtir.qld.gov.au (firewall-user@ns.dtir.qld.gov.au [203.108.138.66]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA13201 for ; Wed, 4 Mar 1998 19:42:40 -0800 (PST) (envelope-from syssgm@dtir.qld.gov.au) Received: by ren.dtir.qld.gov.au; id NAA17751; Thu, 5 Mar 1998 13:50:35 +1000 (EST) Received: from ogre.dtir.qld.gov.au(167.123.8.3) by ren.dtir.qld.gov.au via smap (3.2) id xma017739; Thu, 5 Mar 98 13:50:19 +1000 Received: from troll.dtir.qld.gov.au (troll.dtir.qld.gov.au [167.123.8.1]) by ogre.dtir.qld.gov.au (8.8.7/8.8.7) with ESMTP id NAA09859; Thu, 5 Mar 1998 13:41:50 +1000 (EST) Received: from localhost (syssgm@localhost) by troll.dtir.qld.gov.au (8.8.5/8.8.5) with SMTP id NAA08541; Thu, 5 Mar 1998 13:41:45 +1000 (EST) Message-Id: <199803050341.NAA08541@troll.dtir.qld.gov.au> X-Authentication-Warning: troll.dtir.qld.gov.au: syssgm@localhost didn't use HELO protocol To: Simon Shapiro cc: current@FreeBSD.ORG, syssgm@dtir.qld.gov.au Subject: Re: silo overflows (Was Re: 3.0-RELEASE?) Date: Thu, 05 Mar 1998 13:41:44 +1000 From: Stephen McKay Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Simon Shapiro wrote: > > How about getting rid of that ``%d more silo overflow..'' message? I am > too limited in my understanding device drivers to see why that happens. > I though that UARTs and RS-232C were well understood. Do you have a Matrox Millennium? I borrowed a Matrox Millennium II for a while and put it in my Pentium 133 box. Suddenly I got silo overflows when there was simultaneous incoming serial data and X activity (like scrolling a 60 line xterm window). When I returned the Millennium and put my Trio64V+ card back in, all serial problems disappeared. At the time, I was running the serial port at only 38400, but now run it at 115200 with no problems. I didn't do enough investigation to even guess at the cause. I looked in the XFree86 server code for interrupt disabling but found nothing interesting. I was wondering though if any PCI experts knew if a PCI video card could starve the PCI-ISA bridge of cycles. Any experts out there? Stephen. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message