Date: 17 Nov 1996 09:25:32 -0000 From: tenser@spitfire.ecsel.psu.edu To: FreeBSD-gnats-submit@freebsd.org Subject: kern/2043: 2.2-ALPHA stdio problems? (Bad Address errors) Message-ID: <19961117092532.13851.qmail@spitfire.ecsel.psu.edu> Resent-Message-ID: <199611170920.BAA08018@freefall.freebsd.org>
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>Number: 2043 >Category: kern >Synopsis: 2.2-ALPHA stdio problems? (Bad Address errors) >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Nov 17 01:20:05 PST 1996 >Last-Modified: >Originator: Dan Cross >Organization: Penn State University >Release: FreeBSD 2.2-CURRENT i386 >Environment: i386dx40, 8MB RAM, 1.2GB IDE disk, 64Kb cache I'm not sure of the motherboard manufactor. This is an old system which I pieced together out of parts. It seems to work rather well, except for this problem with stdio. Given the just, well, ``odd'' nature of the problem, and the fact that I've not seen any spontaneous reboots or failures of non-interactive programs etc., I don't believe this to be a hardware error. Also, I've seen it both on console and when logged in over the network. Oddly enough, my shell (tcsh) seems to be immune. I have experienced this as both myself and as root, though I was su'ed for the latter (actually, runas vipw'ed). >Description: Programs which read from stdin will, if given a period of inactivity (say, 30 seconds) return ``Bad Address'' errors from read calls. This will cause vi to exit or dump core, sendmail to ignore whoever it's talking to, telnet to stop talking to a remote host, etc. >How-To-Repeat: Pop up vi on a small file, go get a glass of water, come back and type a command, such as ``j''. vi will give an error and exit. >Fix: I wish I knew, but I bet it's either in the kernel, the stdio libraries, or specific to my system. I'm guessing that it probably has to something to do with the VM system, but I really don't know. Unfortunately, this is the only machine which I have where I can run 2.2-ALPHA, so I can't test it further. :-( >Audit-Trail: >Unformatted:
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