A temporary solution appears to be running this on my Linux FC4 server:
Code:
echo 83886080 > /proc/sys/kernel/shmmax
This sets my current shared memory at 80mb, but when I reboot it will go back to the default 32mb. This is where things get scarey with Linux for me; the perma fix is to change Kernel source and recompile. I have never done this, and I will certainly screw things up
Some general info about making this change permanent (related to installing Ingres, but still informative):
Quote:
3.3. Kernel Parameters
The default settings of the Linux kernel are adequate for a development Ingres environment. For a live system, however, probably to increase the size of the database cache(s), you may want to change the built-in value of the SHMMAX parameter. This parameter sets the maximum size of a shared memory segment. By default, it is 32 Mb which allows for a somewhat lesser buffer cache.
You have two choices to change the value of SHMMAX:
As root, simply echo the new value into /proc/sys/kernel/shmmax:
Code:
#echo 83886080 > /proc/sys/kernel/shmmax
In the example above, we set the value of SHMMAX to 80 Mb. The change takes effect immediately but after a reboot, the original value is restored.
The other possibility is to change SHMMAX's default value in the kernel source (the relevant header file is /usr/src/linux/include/asm/shmparam.h if you have installed the source). In this case, you may also have to modify other parameters in the file, then rebuild the kernel. I suggest you do it only if you know what you are doing. For information on how to configure and compile the kernel see The Linux Kernel HOWTO by Brian Ward.
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Source:
http://www.linux.com/base/ldp/howto/...TO/sysreq.html
If I figure it out, I'll post it. I cannot imagine I am the only one with this problem... but maybe a newer distro could solve it?