Date: Fri, 27 Jun 1997 13:29:01 +0100 (BST) From: Philip Inglesant <philip@dircon.net> To: freebsd-questions@freebsd.org Subject: Kernel build, memory problems Message-ID: <Pine.BSI.3.91.970627130358.2457E-100000@admin.dircon.net>
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I am running FreeBSD on a Pentium 200 with 128MB ram. I have set "option MEMSIZE=131027" in the kernel config file. Of course, for this first kernel re-build, i had to have the machine running with only 64MB ram installed. Then i rebooted on the new kernel, and it saw the memory no problem: on bootup, console and /var/log/messages entries: Jun 27 12:20:02 www-cache2 /kernel: real memory = 134217728 (131072K bytes) Jun 27 12:20:02 www-cache2 /kernel: avail memory = 128126976 (125124K bytes) ... But now, with the 128 MB in place and running on the new kernel, i'd like to re-build the kernel again. I find that i can (usually) do the config and make depend without problems, but when doing the make, it always falls over somewhere with a core dump, usually signal 11, Segmentation fault. I have been able to do the make if it do it in stages, ie. if as soon as it crashes, i just type "make" again and off it goes... after two or three stages, i finally builds a bootable kernel. I am concerened, not just about why this is happening, but to know whether this is likely to be a sign of instability in applications i run on the machine. I want it to run as far as possible unattended as web cache, so it needs a lot of ram and it needs to be reliable. Philip Inglesant Direct Connection
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