Date: Thu, 03 May 2001 12:01:40 -0700 From: John Merryweather Cooper <jmcoopr@webmail.bmi.net> To: FreeBSD-STABLE Mailing List <freebsd-stable@FreeBSD.ORG> Subject: Should /sys/i386/conf/GENERIC's SysV shared memory settings defaults be re-thought? Message-ID: <3AF1AB14.872CBA2A@webmail.bmi.net>
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After finally getting Amanda up and running on my system, I noticed that my cron jobs for amdump would crash with an error in SHMGET if X was running when the amdump job was scheduled. I have also been plagued by IMLIB SHM memory allocation errors. I have just discovered that, by increasing the defaults for all the SysV settings listed in LINT, I have been able to make all those errors disappear; and Amanda will now run to completion even with X running. I increased all these settings by about a factor of x8--remembering that in OS/2 half of all physical memory was made available for shared memory operations--giving me 32 megs of shared memory. In light of the fairly common use of X, should: 1) a commented out section in generic be included with suggested settings that would work better with X, Amanda, and the like; 2) a separate XGENERIC config file optimized for X users; or 3) modify GENERIC to have these increased settings by default (nice for people who run X with GENERIC kernels). Thoughts? jmc To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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