On Fri, 19 Sep 2003, john wrote:
On Fri, 19 Sep 2003, Brian A. Stumm wrote:
On Fri, 19 Sep 2003, Matt Judge wrote:
James Couzens wrote:
Everyone,
I spent several hours gathering this information, and I hope that some of you can find it useful. Let me preface these results with the fact that I was unable to run 2.4.9 on the SMP machine because it would kernel panic (likely SMP I don't know but I didn't have the time to figure it out, so I used another test machine).
I am bored with this.
For mysIelf, and probably for a lot of people, it is not possible to run a 2.4.9 kernel due to people running more recent hardware, and file systems, that are not supported by the 2.4.9 kernel - and patches are neither available nor sufficient to get their modern hardware to run on such an old kernel.
What recent hardware that is not compatible? I've got a brand new system running on this age of kernel. I don't know how well the GeForce card is working on my system but I also don't have a monitor on my box, nor keyboard or mouse. I have exactly two wires to/from my server. Power and Network. I use ext3 filesystem as well. Don't tell me you run X on your server and have it double as a workstation...
/me references you back to the original posters comment:
"Let me preface these results with the fact that I was unable to run 2.4.9 on the SMP machine because it would kernel panic (likely SMP I don't know but I didn't have the time to figure it out, so I used another test machine)."
:)
Kind of a big offput for people with SMP machines. I for one don't have the time to play around with different kernels and see what makes the best performance. From what I have seen with the 2.6.0-test<$x> kernels is various problems from not booting at all (boot loader won't load the kernel) to hanging if no mouse present...
I've been running older kernels on this netfinity dual 133mhz pentium for years at work. It still runs a pre 2.4.10 kernel, we only keep it around for testing purposes but she runs SMP just fine. You guys act as if dual processors is a new thing.
Sort of. SMP support got A LOT better in later 2.4 series kernels. Much of the issues with 2.4.9 kernels once it came out was deadlocks. This was why the VM ripped out (to the horror of many, since ripping out a MAJOR feature of a stable kernel is a big deal), and the SMP was greatly changed (I read almost all of of the LWN kernel summaries for 2001 to find out exactly what was wrong with 2.4.9)
Probably what's happening here are people are hitting those dreaded deadlocks in various places in the kernel. Whether it works or not on SMP should be looked at in a case to case basis, basically if it doesn't work, oh well.
SMP on 2.4.9 wasn't rock solid, but it should be stable from my understanding in most cases.
-sb
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