On 02/06/2015 02:42 PM, Davidlohr Bueso wrote: > On Fri, 2015-02-06 at 08:25 -0800, Linus Torvalds wrote: >> On Fri, Feb 6, 2015 at 6:49 AM, Raghavendra K T >> <raghavendra.kt@xxxxxxxxxxxxxxxxxx> wrote: >>> Paravirt spinlock clears slowpath flag after doing unlock. >> [ fix edited out ] >> >> So I'm not going to be applying this for 3.19, because it's much too >> late and the patch is too scary. Plus the bug probably effectively >> never shows up in real life (it is probably easy to trigger the >> speculative *read* but probably never the actual speculative write >> after dropping the lock last). >> >> This will need a lot of testing by the paravirt people - both >> performance and correctness. So *maybe* for 3.20, but maybe for even >> later, and then marked for stable, of course. >> >> Are there any good paravirt stress-tests that people could run for >> extended times? > > locktorture inside a VM should give a proper pounding. Would it catch lifetime issues too? I thought it just tests out correctness. I tried it and other unrelated stuff broke. I'll send separate mails for that... Thanks, Sasha _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
