Description of problem: Every minute ath9k writes in /var/log/messages ..... Jan 16 17:10:59 reddwarf kernel: ForceXPAon: 0 Jan 16 17:10:59 reddwarf kernel: ForceXPAon: 0 Jan 16 17:10:59 reddwarf kernel: ForceXPAon: 0 Jan 16 17:10:59 reddwarf kernel: ForceXPAon: 0 Jan 16 17:11:59 reddwarf kernel: ForceXPAon: 0 Jan 16 17:11:59 reddwarf kernel: ForceXPAon: 0 Jan 16 17:11:59 reddwarf kernel: ForceXPAon: 0 Jan 16 17:11:59 reddwarf kernel: ForceXPAon: 0 ..... This is a really bad news as "reddwarf" is a netbook (ASUS EeePC 1002HA) and that means that its disk, which happens to be a "rotating" one, will never go quiet and a battery will get a hit. Besides this quickly renders dmesg quite useless, even with an increased buffer, as it is overrun by "ForceXPAon: 0" It does not seem to be any way to shut that spamming out beyond recompiling a module. On a good side WiFi connection did work on the first try. :-) Version-Release number of selected component (if applicable): kernel-2.6.27.9-159.fc10.i686 How reproducible: Constantly, and that is the problem. Additional info: An output from 'lspci -tv': -[0000:00]-+-00.0 Intel Corporation Mobile 945GME Express Memory Controller Hub +-02.0 Intel Corporation Mobile 945GME Express Integrated Graphics Controller +-02.1 Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller +-1b.0 Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller +-1c.0-[0000:03]-- +-1c.1-[0000:02]----00.0 Attansic Technology Corp. Device 1026 +-1c.2-[0000:01]----00.0 Atheros Communications Inc. Device 002a +-1d.0 Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 +-1d.1 Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 +-1d.2 Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 +-1d.3 Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 +-1d.7 Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller +-1e.0-[0000:04]-- +-1f.0 Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge +-1f.2 Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller \-1f.3 Intel Corporation 82801G (ICH7 Family) SMBus Controller WiFi interface is +-1c.2-[0000:01]----00.0 with "168c:002a" PCI ID.
Created attachment 329509 [details] ath9k: quiet forcexpa message I've submitted this upstream.
> I've submitted this upstream. Thanks! That is what, more or less, I meant by "recompiling the module". :)
This is now part of 2.6.27.13: http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.13 commit e010592315ae5e33758e2e54afdd354ea77f4e62 Author: Luis R. Rodriguez <lrodriguez> Date: Tue Jan 20 11:42:43 2009 -0800 ath9k: quiet harmless ForceXPAon messages This is a port of one line of upstream patch f1dc56003b23d2d5bb5a756de6b1633a76c9e697 The "ForceXPAon" messages on ath9k were not meant to be printed regularly, lets quiet them as this can happen quite frequently (scans) and will fill the logs with tons of these messages. Signed-off-by: Sujith <Sujith.Manoharan> Signed-off-by: Luis R. Rodriguez <lrodriguez> Signed-off-by: Greg Kroah-Hartman <gregkh> This bug can be closed now.