Re: small regression in mediatree/for_v3.7-3 - media_build

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On Tue, Aug 14, 2012 at 4:51 PM, Antti Palosaari <crope@xxxxxx> wrote:
>> There seems to be a small regression on mediatree/for_v3.7-3
>> - dmesg/klog get flooded with these:
>>
>> [201145.140260] dvb_frontend_poll: 15 callbacks suppressed
>> [201145.586405] usb_urb_complete: 88 callbacks suppressed
>> [201150.587308] usb_urb_complete: 3456 callbacks suppressed
>>
>> [201468.630197] usb_urb_complete: 3315 callbacks suppressed
>> [201473.632978] usb_urb_complete: 3529 callbacks suppressed
>> [201478.635400] usb_urb_complete: 3574 callbacks suppressed
>>
>> It seems to be every 5 seconds, but I think that's just klog skipping
>> repeats and collapsing duplicate entries. This does not happen the last time
>> I tried playing with the TV stick :-).
>
> That's because you has dynamic debugs enabled!
> modprobe dvb_core; echo -n 'module dvb_core +p' >
> /sys/kernel/debug/dynamic_debug/control
> modprobe dvb_usbv2; echo -n 'module dvb_usbv2 +p' >
> /sys/kernel/debug/dynamic_debug/control
>
> If you don't add dvb_core and dvb_usbv2 modules to
> /sys/kernel/debug/dynamic_debug/control you will not see those.

I'm getting massive amounts of "dvb_frontend_poll: 20 callbacks
suppressed" messages in dmesg also and I definitely did not put
dvb_core or anything else in /sys/kernel/debug/dynamic_debug/control.
For that matter I don't even have a
/sys/kernel/debug/dynamic_debug/control file.

> I have added ratelimited version for those few debugs that are flooded
> normally. This suppressed is coming from ratelimit - it does not print all
> those similar debugs.

I'm using kernel 3.6.3 with media_build from Oct. 21, 2012. How I can
disable those messages? I'd rather not see hundreds, possibly
thousands or millions of those messages. :)
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