On Sat, 19 Sep 2009, Neil Wilson wrote: > I hope this is the right list to shed some light on this kernel problem: No, the correct list for this one will be the LKML and linux-acpi... Unfortunately for you, you don't have a ThinkPad :( > http://bugzilla.kernel.org/show_bug.cgi?id=13830 > referring to further detail at > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/401891 > > When I use 'acpi=off' or 'acpi=ht' I can run the Realtek network > interface on the Lenovo at full speed with no problems. > > Once I switch ACPI on, or use any of the other flags then I start to > get network errors when I put the interface under load. Errors, > overruns and dropped packets all go up in tandem. Looks like either: 1. interrupt routing problems, or 2. SMP-releated problems, or 3. MSI-related problems, or 4. APIC-related problems. 1 and 4 are more likely, and in every case you can test them without disabling ACPI. I don't recall the kernel command line parameters to mess with the interrupt routing or with the APIC, or disable SMP, but they're not too difficult to find in the kernel-parameters.txt file. Please test various variations of the parameters for these functionalities, and send your findings to the bugzilla.kernel.org report. > The problem has existed in all versions of the kernel I have > available, (down to 2.6.24). Diagnostic output from the machine is > attached to the Launchpad bug above. Are you using the latest version of the firmware for that machine? -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
