Robert Iakobashvili wrote:
Kernels 2.6.19 and 2.6.20 series are effectively broken right now. Don't you wish to patch them?
I don't know if this qualifies as an unconditional bug. The commit above was actually a bugfix so that the limits were not higher than total memory on some systems, but had the side effect that it made them even smaller on your particular configuration. Also, having initial sysctl values that are conservatively small probably doesn't qualify as a bug (for patching stable trees). You might ask the -stable maintainers if they have a different opinion.
For most people, 2.6.19 and 2.6.20 work fine. For those who really care about the tcp_mem values (are using a substantial fraction of physical memory for TCP connections), the best bet is to set the tcp_mem sysctl values in the startup scripts, or use the new initialization function in 2.6.21.
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