Hi, On 16/02/15 14:44, Peter Zijlstra wrote: > On Mon, Feb 16, 2015 at 02:08:21PM +0100, Peter Zijlstra wrote: >> On Mon, Feb 16, 2015 at 03:38:34PM +0300, Kirill Tkhai wrote: >>> We shouldn't enqueue migrating tasks. Please, try this one instead ;) >> >> Ha, we should amend that task-rq-lock loop for that. See below. >> >> I've not yet tested; going to try and reconstruct a .config that >> triggers the oops. > > OK, I had to remove -enable-kvm from Wu's script, otherwise the test > would not hit the CBS limit, and then I had to remove the panic on > softlockup because well, qemu is so slow you're going to hit that :-) > > But the good news is that I could reproduce and this patch does indeed > seem to solve it. >
I also tested this on top of tip, with kvm actually. So, 1019a359d3dc seemed to reintroduce what aee38ea95419 "sched/deadline: Fix races between rt_mutex_setprio() and dl_task_timer()" fixed. But, this patch seems to fix it again :). Thanks, - Juri -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
