On Tue, Jan 20, 2015 at 08:29:47AM +0100, Hans Petter Selasky wrote: > On 01/17/15 23:18, Hans Petter Selasky wrote: > > On 01/17/15 20:11, Jason Wolfe wrote: > >> > >> HPS, > >> > >> Just to give a quick status update, this patch has most certainly > >> resolved our spin lock held too long panics on stable/10. > >> > >> Thank you to JHB for spending some time digging into the issue and > >> leading us to td_slpcallout as the culprit, and HPS for your rewrite. > >> I had heard rumors of other being affected by similar issues, so this > >> seems like a fine candidate for an MFC if possible. > >> > >> Jason > >> > > > > Hi Jason, > > > > I'm glad to hear that my patch has resolved your issue and I'm happy we > > now have a more stable system. > > > > It was actually a co-worker at work which wrote some bad code which I > > started debugging which then lead me to look at the callout subsystem. > > One bug kills the other ;-) > > > > I'm planning a MFC to 10-stable - yes, and will possibly add the > > _callout_stop_safe() function to not break binary compatibility with > > existing drivers as part of the MFC. > > > > --HPS > > Hi, > > Here is a followup patch for the TCP stack like I mentioned in the > beginning of the work done on the callout subsystem: > > https://reviews.freebsd.org/D1563 > > If someone has a setup for massive TCP testing please give it a spin. I have on 10.1 (with applied r261906).Received on Tue Jan 20 2015 - 09:47:47 UTC
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