Return to BSD News archive
Received: by minnie.vk1xwt.ampr.org with NNTP id AA1117 ; Tue, 23 Feb 93 14:26:47 EST Newsgroups: comp.unix.bsd Path: sserve!manuel.anu.edu.au!munnari.oz.au!hp9000.csc.cuhk.hk!saimiri.primate.wisc.edu!doug.cae.wisc.edu!umn.edu!csus.edu!netcom.com!hasty From: hasty@netcom.com (Amancio Hasty Jr) Subject: Re: [386BSD] I keep getting silo overflow Message-ID: <1993Feb11.223329.13043@netcom.com> Organization: Netcom Online Communications Services (408-241-9760 login: guest) References: <1993Feb11.135806.24559@njitgw.njit.edu> <1993Feb11.204402.16005@coe.montana.edu> Date: Thu, 11 Feb 1993 22:33:29 GMT Lines: 37 In article <1993Feb11.204402.16005@coe.montana.edu> osyjm@cs.montana.edu (Jaye Mathisen) writes: >In article <1993Feb11.135806.24559@njitgw.njit.edu> elie@sensors.njit.edu (Elie I. Mourad) writes: >> >>I keep getting /386bsd: com0 silo overflow. >>(When I am using rz on com1) >>Any pointers ? >>I am running 0.1 without any patches > >You're overrunning your UART. Try slowing your line speed down, get >patches, throw out your UART and get a 16550AFN to replace it, and >possibly (haven't messed with the com stuff much) make sure you're >using hardware flow control. >-- > Jaye Mathisen, COE Systems Manager (406) 994-4780 > 410 Roberts Hall,Dept. of Computer Science > Montana State University,Bozeman MT 59717 osyjm@cs.montana.edu That is one way to fix the problem another way which is the root of all this problems is that the com driver is locking out interrupts for a duration of sometimes hundreds of instructions. Also, when you do disk access the com driver never gets a chance to respond to interrupts. What we need are the set of patches to correct this problem. Couple of the netters have tackle this problem so the question is are those patches ready guys? Hope we can see the last of this problem.... amancio -- This message brought to you by the letters X and S and the number 3 Amancio Hasty | Home: (415) 495-3046 | ftp-site depository of all my work: e-mail hasty@netcom.com | sunvis.rtpnc.epa.gov:/pub/386bsd/incoming