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Date: Fri, 14 Jun 2013 07:54:06 +0200 From: Willy Tarreau <w@....eu> To: Ben Hutchings <ben@...adent.org.uk> Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org, Paul Gortmaker <paul.gortmaker@...driver.com>, Eric Dumazet <eric.dumazet@...il.com> Subject: Re: Linux 2.6.32.61 Hi Ben, On Fri, Jun 14, 2013 at 05:11:55AM +0100, Ben Hutchings wrote: > On Mon, 2013-06-10 at 12:15 +0200, Willy Tarreau wrote: > [...] > > Eric Dumazet (8): > [...] > > softirq: reduce latencies > [...] > > This one apparently introduces a regression, fixed in mainline by commit > 34376a50fb1f 'Fix lockup related to stop_machine being stuck in > __do_softirq.' > > I'm a bit surprised that you picked it for 2.6.32 as it wasn't applied > to any other branch older than 3.9. Interesting. It was discussed on stable@ in March between Eric and Paul about the pertinence of merging it into 2.6.32 and 2.6.34 (both CCed). The thread was '[PATCH] net: reduce net_rx_action() latency to 2 HZ'. It is supposed to fix a but introduced in 2.6.29 by commit 24f8b2385 (net: increase receive packet quantum). I didn't notice that it was not in more recent versions. Eric, do you suggest that I revert this patch or that I also include the mainline fix above to fix the regression ? If the latter, should Paul and Greg also take the two patches ? Thanks, Willy -- 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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