fit-IoT Users Forum

Everything should be here, kernel source, X driver, mplayer, etc.

Kleborp: I updated my Lenny to Sid (Debian unstable) and kernel 2.6.30. Now it looks like it loads the module correctly. I get cached reads of about 300-350 MB/s and buffered reads of about 40-45 MB/s. Much better, and workable for me, but I wonder howcome I only get half of your cached reads? Than...

It doesn't see 2 different CPUs, it's 1 CPU with HyperThreading (notice how both the core id and physical id is 0, same CPU, and the 'ht' flag). It runs at 800mhz when it's idle, it utilizes cpu frequency scaling, see if it has 'cpufreq-info' as command, that should show: cpufrequtils 005: cpufreq-i...

Hmm from the lsmod output it does look like it has the 'pata_sch' module, but it might not be using it, and it's using ide_generic instead. This is my lsmod output on a 2.6.30 kernel: [root@<snip> ~]# uname -a Linux <snip> 2.6.30-fit #1 SMP PREEMPT Sat Jul 11 20:41:31 CEST 2009 i686 Intel(R) Atom(TM...

Sounds like the same issue discussed in this topic. Basically you have to turn off the 'C-States' power saving in the BIOS and use just GV3, it's a known bug in the kernel (related to ACPI/Power Management).

So try changing that bios option and test again.

Post the output of 'lsmod' and 'uname -a', it's probably using a generic ide driver, which works but without DMA and everything.

It should be using the US15W compatible 'pata_sch' module, which is either in patched old kernels or in vanilla kernels since 2.6.29 I think.

There's an easier fix for this, after looking at the patch and related code I found the following comment: Thank-you and well done Kleborp ! A very nice fix until the Ubuntu kernel is patched. Have you submitted the bug fix to them yet? I don't think this is worth a bug fix, it's not really a bug o...

I'm running a 2.6.30 kernel (not Ubuntu though), with the SMP enabled, and compiling with multiple jobs (-j2 or -j3) does reduce compile times by about 5 to 20%. It isn't much, but that's because it isn't really an extra core but hyperthreading. So yes it does increase performance slightly, but it p...

There's an easier fix for this, after looking at the patch and related code I found the following comment: /* * Some machines require the "reboot=b" commandline option, * this quirk makes that automatic. */ static int __init set_bios_reboot(const struct dmi_system_id *d) { if (reboot_type != BOOT_BI...