On Thu, 2004-11-11 at 09:29 -0500, David Cary Hart wrote: > > On Thu, 2004-11-11 at 09:08 -0500, Don Levey wrote: > > > > > > Duncan, > > > You may want to check out the thread "FC3, Linuxant, stock kernel > > > (2.6.9-1.667) and 4k stacks". The FC3 stack is indeed 4k, which also causes > > > problems for the Linuxant driver loader. They provide a 2.6.9-1.667 custom > > > kernel that has a 16k stack, the URL for that is somewhere up-thread. > > > > Linux "standard" ;-) is 8K. I wonder how 16K affects overall > performance. > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list Hi, I have never had any performance problems I have noticed. Just as some info for everyone, Linuxant say themselves: "Some drivers (especially for Intel Centrino PRO/Wireless 2200BG and 2100) need significant stack space. Kernel stack size on Windows is generally 12k (3 pages) but only 8k - sizeof(task_struct) = about 6.5k on Linux. Stack overflows, although rare but still theoretically possible can lead to semi-random crashes. This is even more likely to happen when using kernels compiled with CONFIG_4KSTACKS (which is the default in Fedora Core 2 "and 3"?). An experimental workaround for this can be enabled by running "dldrconfig --enable-workaround=stack" but the safest solution is to increase the kernel stack size to 16k" and about their rebuilt kernel: "The default stack size in original Fedora Core 3 kernels is only 4K. Because some Windows drivers require at least 12K of stack to operate properly, we recommend using a kernel with a larger stack size if you experience problems or crashes. You can either rebuild your own custom kernel, or install one of the "stk16" kernels below which we have provided for your convenience. They are essentially identical to the Fedora kernels, except that the stack size was increased to 16K and the problematic 4G/4G patch removed" Duncan
