Subject : Soft-Lockup/Race in networking in 2.6.31-rc1+195 (possibly caused by netem) Submitter : Andres Freund <andres@anarazel.de> Date : 2009-07-01 01:20 References : http://lkml.org/lkml/2009/6/30/398 Handled-By : Jarek Poplawski <jarkao2@gmail.com> Notify-Also : Joao Correia <joaomiguelcorreia@gmail.com> This entry is being used for tracking a regression from 2.6.30. Please don't close it until the problem is fixed in the mainline.
On Friday 10 July 2009, Andres Freund wrote: > Hi John, Hi Rafael, > > On Friday 10 July 2009 03:46:57 John Dykstra wrote: > > On Tue, 2009-07-07 at 03:25 +0200, Andres Freund wrote: > > > There is also http://lkml.org/lkml/2009/6/30/398 : Soft-Lockup/Race > > > in > > > networking in 2.6.31-rc1+195 (possibly caused by netem) > > > > There is some similarity between this soft lockup and the one reported > > in http://www.spinics.net/lists/netdev/msg100957.html. In both, the > > process is doing both sends and receives on raw sockets. > The issue turned out to be a hrtimer bug - i dont see anything like it in > your > trace. If you still want to test the fix, its > de907e8432b08f2d5966c36e0747e97c0e596810 in -tip (or > http://lkml.org/lkml/2009/7/9/150) > > Rafael: In case youre reading this, I guess you can mark that bug as > resolved.