2013/3/7 Richard Genoud <richard.genoud@xxxxxxxxx>: > 2013/3/6 Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>: >> I have found a simple way to reproduce this kind of warning: >> 1) reboot the VM (because this warning can be displayed only once.) >> 2) login to the host and open the VM [Settings] >> 3) Temporarily change the Network adapter's option [Virtual Switch] to "Not connected". >> 4) run dmesg, you should see the warning. >> >> The reason for the warning is -- netif_tx_disable() is called when the NIC >> is disconnected. And it's called within irq context. netif_tx_disable() >> calls local_bh_enable() which displays warning if in irq. >> >> The fix is to remove the unnecessary netif_tx_disable() in the netvsc_linkstatus_callback(). >> I attached a patch. Would you like to test it on your side as well? I installed the patched kernel today. here are the stats of the warings until today : kern.log.1:Mar 12 22:32:10 devlabo kernel: [30114.506299] ------------[ cut here ]------------ kern.log.2:Mar 5 22:30:48 devlabo kernel: [10455.098586] ------------[ cut here ]------------ kern.log.2:Mar 6 22:31:25 devlabo kernel: [85552.645480] ------------[ cut here ]------------ kern.log.3:Feb 26 22:35:14 devlabo kernel: [37398.788119] ------------[ cut here ]------------ kern.log.3:Feb 27 22:34:37 devlabo kernel: [10688.187196] ------------[ cut here ]------------ kern.log.4:Feb 22 22:32:22 devlabo kernel: [40399.795364] ------------[ cut here ]------------ So, I'll wait for one or two weeks before sending some feedback. Regards, Richard _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
