Hi Neal, I will be more happy to test the patch. Please send it my way.
Thanks, Grant > On May 29, 2015, at 12:46 PM, Neal Cardwell <ncardw...@google.com> wrote: > > On Fri, May 29, 2015 at 3:21 PM, Grant Zhang <gzh...@fastly.com> wrote: >> We have multiple machines running into the following trace repeatedly. The >> trace shows up every couple of seconds on our production machines. >> > ... >> May 29 18:14:04 cache-fra1230 kernel:[3080455.796188] [<ffffffff81678174>] >> tcp_fragment+0x2e4/0x2f0 >> May 29 18:14:04 cache-fra1230 kernel:[3080455.796191] [<ffffffff8166edeb>] >> tcp_mark_head_lost+0xeb/0x290 >> May 29 18:14:04 cache-fra1230 kernel:[3080455.796193] [<ffffffff8166fe28>] >> tcp_update_scoreboard+0x58/0x90 >> May 29 18:14:04 cache-fra1230 kernel:[3080455.796195] [<ffffffff8167422d>] >> tcp_fastretrans_alert+0x75d/0xb30 >> May 29 18:14:04 cache-fra1230 kernel:[3080455.796197] [<ffffffff816750d5>] >> tcp_ack+0xa15/0xf50 > > I'm glad you are seeing this so often. :-) We see this warning too, > but only very occasionally. > > Our team has a proposed fix, but we have so far been unable to test it > thoroughly since it happens so rarely in our environment. Would you be > willing to test a small patch aimed at fixing this warning? > > neal -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
