On Tuesday 27 May 2014 04:34 PM, Tony Lindgren wrote: > * Daniel Lezcano <[email protected]> [140523 13:53]: >> On 23 May 2014 20:32, Tony Lindgren <[email protected]> wrote: >> >>> * Tony Lindgren <[email protected]> [140523 07:45]: >>>> * Tobias Jakobi <[email protected]> [140519 14:19]: >>>>> >>>>> But even if I don't connect via WiFi at all, just boot and let me >>> system >>>>> run with serial console connected, after some time I get a kernel >>> 'WARNING': >>>>> http://www.math.uni-bielefeld.de/~tjakobi/archive/dmesg.1.log >>>> >>>> BTW, care to update the bugzilla page with the second warning >>>> in this log? >>>> >>>> That's the WARNING: CPU: 1 PID: 0 at kernel/timer.c:1147 that's >>>> at 238 seconds. >>> >>> Also, with Santosh's fix applied, can you also try disabling one >>> or more of the idle states for cpuidle and see if that helps? >>> >>> Something like this patch below. If that helps with the WARNING >>> above you're getting it narrows down the problem down quite a bit. >>> >>> Regards, >>> >>> Tony >>> >>> --- a/arch/arm/mach-omap2/cpuidle44xx.c >>> +++ b/arch/arm/mach-omap2/cpuidle44xx.c >>> @@ -44,11 +44,13 @@ static struct idle_statedata omap4_idle_data[] = { >>> .mpu_state = PWRDM_POWER_RET, >>> .mpu_logic_state = PWRDM_POWER_RET, >>> }, >>> +#if 0 >>> { >>> .cpu_state = PWRDM_POWER_OFF, >>> .mpu_state = PWRDM_POWER_RET, >>> .mpu_logic_state = PWRDM_POWER_OFF, >>> }, >>> +#endif >>> >> >> Hmm, I am afraid that will lead to a fault. Safer to set the state_count = >> 2 instead. > > Hmm don't we have state_count = ARRAY_SIZE(omap4_idle_data) or am I > missing something? > I don't think you are missing anything. The change should work.
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