Article View: comp.bugs.sys5
Article #192Re: Strange line in the root crontab: why?
From: Mark Brukhartz
Date: Sat, 21 Jul 1990 17:47
Date: Sat, 21 Jul 1990 17:47
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In article <932@gistdev.gist.com> flint@gistdev.gist.com (Flint Pellett) writes:
>I found this line in the root crontab on our 3B2/600, which is now
>running R3.2.2. [ ... ]
>
>0 0 * * * dd if=/dev/mem of=/dev/null 2>/dev/null
It corrects single-bit memory errors before they grow into uncorrectable
double-bit errors. The command, of course, reads all of physical memory.
The memory hardware then detects any single- or double-bit errors and
corrects the single-bit errors.
Mark Brukhartz
INTERACTIVE Systems Corporation
Services and Technologies
mdb@i88.isc.com
...!{amdahl, ico, ima, ism780c, masscomp, nucsrl, sun}!laidbak!mdb
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mcdchg!laidbak!mdb From: mdb@i88.isc.com (Mark Brukhartz) Newsgroups: comp.bugs.sys5 Subject: Re: Strange line in the root crontab: why? Keywords: crontab Message-ID: <1990Jul21.174725.27246@i88.isc.com> Date: 21 Jul 90 17:47:25 GMT References: <932@gistdev.gist.com> Sender: usenet@i88.isc.com (Usenet News) Distribution: comp Organization: INTERACTIVE Systems Corporation, Naperville, IL Lines: 16