Ok, I found out how to reliably reproduce this bug. The root session issue was a bit weird, but I noticed I usually switch to root only when I need to change the CPU frequency. And here's what happens:
# cpuspeedy min [after some time...] Nov 29 09:42:31 morte [ 4408.722597] b43-phy0 ERROR: PHY transmission error # cpuspeedy max Nov 29 09:42:41 morte [ 1177.238599] wmaster0: STA 00:14:c1:35:8d:eb Average rate: 540 (2160/4) It looks like jiffies get scaled exactly by a 3.75 factor, which is <max_frequency>/<min_frequency> here. I use acpi-cpufreq and this is my (only) CPU: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13 model name : Intel(R) Pentium(R) M processor 1.50GHz stepping : 6 cpu MHz : 1500.000 cache size : 2048 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe bts est tm2 bogomips : 2993.49 clflush size : 64 Any hint? -- Ciao Stefano - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/