On Thu, Nov 24, 2011 at 11:50:06PM +0100, John Kacur wrote: > So, as a little experiment, on v3.2.0-rc2-rt3 > I redefined MAX_LOCKDEP_ENTRIES from 16384UL to 32768UL > > Then from /proc/lockdep_stats > > I got > direct dependencies: 18026 [max: 32768] > > The fact that 18026 is only a little larger than the normal max (by 1642) > to me is another indication that, this is not a case of something in > lockdep going out of control that needs to be fixed, but just another > indication that in some circumstances it would be legitimate to raise > the value. Yeah, seems the reason is in RT we have no dedicated softirq-context anymore, IOW, both process-context and softirq-context are taken as process-context. That will increase the usage of lockdep entries because we expand the scope of process-context. Thanks, Yong -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
