On Mon, 12 Oct 2009 03:49:19 -0700 (PDT) David Miller <davem@xxxxxxxxxxxxx> wrote: > From: "Rafael J. Wysocki" <rjw@xxxxxxx> > Date: Mon, 12 Oct 2009 01:01:06 +0200 (CEST) > > > This message has been generated automatically as a part of a report > > of regressions introduced between 2.6.30 and 2.6.31. > > > > The following bug entry is on the current list of known regressions > > introduced between 2.6.30 and 2.6.31. Please verify if it still should > > be listed and let me know (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=14252 > > Subject : WARNING: at include/linux/skbuff.h:1382 w/ e1000 > > Submitter : Stephan von Krawczynski <skraw@xxxxxxxxxx> > > Date : 2009-09-20 11:26 (22 days old) > > References : http://marc.info/?l=linux-kernel&m=125344599006033&w=4 > > Hmmm... e1000 calls skb_trim() on both jumbo and non-jumbo ring > buffers which get recycled. > > At least for the Jumbo case, that's illegal as you cannot call > skb_trim() on an SKB with paged data. > > But this assertion is triggering for the non-jumbo ring where > only linear packets should be present as far as I can tell. > > Some Intel folks need to take a look, CC:'d, and people need > to CC: their networking bug reports to netdev@xxxxxxxxxxxxxxx > so that the proper folks see it. > > Thanks. Really, this was a lucky catch, because most of the time the box goes dead right away. Don't interpret "most of the time" as "continously every day". It just happens sometimes. I am not that surprised because it's a box on the "frontline", you can find a lot of trash going on there, like: Oct 12 12:21:01 box kernel: TCP: Peer 217.231.204.133:61124/80 unexpectedly shrunk window 2348821413:2348838837 (repaired) Oct 12 12:21:02 box kernel: TCP: Peer 217.231.204.133:61124/80 unexpectedly shrunk window 2348821413:2348838837 (repaired) -- Regards, Stephan -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
