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Date: Fri, 28 Jun 2013 09:00:41 +0300 From: Eliezer Tamir <eliezer.tamir@...ux.intel.com> To: Cody P Schafer <devel-lists@...yps.com> CC: David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, Jesse Brandeburg <jesse.brandeburg@...el.com>, Don Skidmore <donald.c.skidmore@...el.com>, e1000-devel@...ts.sourceforge.net, Willem de Bruijn <willemb@...gle.com>, Eric Dumazet <erdnetdev@...il.com>, Ben Hutchings <bhutchings@...arflare.com>, Andi Kleen <andi@...stfloor.org>, HPA <hpa@...or.com>, Eilon Greenstien <eilong@...adcom.com>, Or Gerlitz <or.gerlitz@...il.com>, Amir Vadai <amirv@...lanox.com>, Alex Rosenbaum <alexr@...lanox.com>, Eliezer Tamir <eliezer@...ir.org.il> Subject: Re: [PATCH v4 net-next] net: poll/select low latency socket support On 28/06/2013 03:29, Cody P Schafer wrote: > On 06/27/2013 05:25 PM, Cody P Schafer wrote: >> On 06/24/2013 12:28 AM, Eliezer Tamir wrote: >>> select/poll busy-poll support. >>> ... >> >> I'm seeing warnings about using smp_processor_id() while preemptable >> (log included below) due to this patch. I expect the use of >> ll_end_time() -> sched_clock() here is triggering this. >> >> Apologies if this has already been noted. > > To be clear, given how sched_time() is used here the BUG appears > invalid, but we need a way to mark this as OK for the smp_processor_id() > checks so we don't get BUG spam. > Thanks for reporting this. -Eliezer -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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