http://bugzilla.kernel.org/show_bug.cgi?id=13032
--- Comment #19 from Jose Marino <bra...@hotmail.com> 2009-04-11 18:53:56 --- To trigger this bug all I had to do is create some network traffic. By downloading something or by ssh to a remote machine and running "find .". While bisecting the bug I noticed that I could not trigger the bug while the kernel was compiling (cpu at 100%) or when I ssh to a machine in the local network. With powertop I checked the Cn state of the cpu: **** network drops **** -- USB mouse unplugged, traffic with distant machine Cn Avg residency P-states (frequencies) C0 (cpu running) (10.2%) 2.00 Ghz 9.0% polling 0.0ms ( 0.0%) 1.80 Ghz 1.1% C1 halt 0.0ms ( 0.0%) 1.60 Ghz 0.1% C2 4.2ms (15.6%) 800 Mhz 1.0% C3 0.3ms ( 0.1%) 600 Mhz 88.7% C4 3.8ms (74.1%) **** NO network drops **** -- USB mouse unplugged, traffic with machine in local network Cn Avg residency P-states (frequencies) C0 (cpu running) (99.9%) 2.00 Ghz 42.4% polling 0.0ms ( 0.0%) 1.80 Ghz 0.0% C1 halt 0.0ms ( 0.0%) 1.60 Ghz 0.0% C2 0.9ms ( 0.1%) 800 Mhz 2.5% C3 0.0ms ( 0.0%) 600 Mhz 55.0% C4 0.0ms ( 0.0%) -- Mouse plugged in Cn Avg residency P-states (frequencies) C0 (cpu running) ( 2.8%) 2.00 Ghz 6.2% polling 0.0ms ( 0.0%) 1.80 Ghz 0.0% C1 halt 0.0ms ( 0.0%) 1.60 Ghz 0.0% C2 5.1ms (97.2%) 1400 Mhz 0.0% C3 0.0ms ( 0.0%) 600 Mhz 93.8% C4 0.0ms ( 0.0%) It seems that the network drops only happen whenever the cpu is allowed to go lower than C2. Somehow plugging in the USB mouse is preventing this. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
