--- On Wed, 15/8/12, Antti Palosaari <crope@xxxxxx> wrote: > On 08/15/2012 02:39 AM, Hin-Tak Leung > 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 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 did not enable it - it is as shipped :-). # grep 'CONFIG_DYNAMIC' /boot/config* /boot/config-3.4.6-2.fc17.x86_64:CONFIG_DYNAMIC_FTRACE=y /boot/config-3.4.6-2.fc17.x86_64:CONFIG_DYNAMIC_DEBUG=y /boot/config-3.5.0-2.fc17.x86_64:CONFIG_DYNAMIC_FTRACE=y /boot/config-3.5.0-2.fc17.x86_64:CONFIG_DYNAMIC_DEBUG=y /boot/config-3.5.1-1.fc17.x86_64:CONFIG_DYNAMIC_FTRACE=y /boot/config-3.5.1-1.fc17.x86_64:CONFIG_DYNAMIC_DEBUG=y Now I wonder why I didn't have those usb_urb_complete messages before? The last time I played with mediatree was with 3.4.4-5.fc17.x86_64, and with the mediatree2/dvb_core branch - and I did not have these then. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
