Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > On Fri, 10 Oct 2008, Thomas Gleixner wrote: >> On Fri, 10 Oct 2008, Elias Oltmanns wrote: [...] >> > This particular one is in >> > drivers/net/wireless/ath5k/phy.c:ath5k_hw_noise_floor_calibration() >> > which is called from ath5k_calibrate(), the callback executed every ten >> > seconds in softirq context. Could this have anything to do with our >> >> That makes sense. The timer expires early events are multiples of 10s >> apart. > > Ok, I thought more about it and aside of the fact that the ath5k is > doing something nasty, you unearthed a weakness in the broadcast code. > > Can you please try the following: > > Compile the acpi_processor module in to the kernel > (CONFIG_ACPI_PROCESSOR=y) and add processor.max_cstate=1 to the kernel > command line. If I analysed the problem correctly this will make the > jiffies problem go away. I'm working on a fix. Spot on, it does go away regardless whether NO_HZ or HIGH_RES are enabled or disabled. Looking forward to testing your fix ;-). Regards, Elias -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
