Date: Thu, 29 May 1997 18:17:12 -0300 (EST) From: Luiz de Barros <luiz@nlink.com.br> To: Bruce Evans <bde@zeta.org.au> Cc: hackers@FreeBSD.ORG, paulo@nlink.com.br, isp@FreeBSD.ORG Subject: Re: Cyclades PCI Strange Behavior Message-ID: <Pine.BSF.3.91.970529181306.4015A-100000@mirage.nlink.com.br> In-Reply-To: <199705291814.EAA24203@godzilla.zeta.org.au>
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Hi All, The setup below is working 100% OK with no Silo Overflows with an Old Cyclades Cyclom ISA HOST ADAPTER controlling 32 ports (Same Serial Modules, computer, MB, modems, cables, etc ). Do cyclades Guys and FreeBSD Team have plans of fixing this problem soon? I think many people have had this problem... Luiz de Barros Nlink ISP. On Fri, 30 May 1997, Bruce Evans wrote: > >a Pentium 133 with Intel i430vx Motherboard > >32MB RAM. > >1.2GB IDE HardDrive > >a Trident PCI Video Card > >A cyclades PCI Cy32 card mapped to high memory > >32 dial-in modems > > >We are getting a lot of silo overflows that get more frequently when we > >start using the computer ( very frequent when we compile the kernel ). > >If we start an upload to the computer, we have very much silo overflows > >than in a download. > > Silo overflows are probably normal for the PCI version of the driver. > It uses a normal low-priority interrupt handler which can be delayed > for several msec by other interrupt handlers. At 115200 bps, there is > about 1 silo overflow for ever msec of delay. Delays of 3-5 msec are > normal for updating the keyboard LEDs. Delays of 0.1-1 msec are normal > for IDE drives and PIO ethernet cards. Delays accumulate. > > >After about 1 day with the system running it JUST RESETS without any > >message in the screen if we SWITCH ONE OF THE MODEMS OFF AND ON AGAIN ( > >Just after we turn if on ). > > This is probably unrelated. There is a software bug that causes the > timeout table to fill up under certain overloads, but this normally > causes panics with a message. > > Bruce >
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