misc/153308: em interface use 100% cpu

[Gleb Smirnoff]

The following reply was made to PR kern/153308; it has been noted by GNATS.

From: Gleb Smirnoff <glebius at FreeBSD.org>
To: Yusuf Ozbilgin <yusuf at gunes.net>
Cc: freebsd-gnats-submit at FreeBSD.org
Subject: Re: misc/153308: em interface use 100% cpu
Date: Wed, 22 Dec 2010 17:31:12 +0300

 On Mon, Dec 20, 2010 at 02:25:29PM +0000, Yusuf Ozbilgin wrote:
 Y> >Synopsis:       em interface use 100% cpu
 ...
 Y> em0 at pci0:1:0:0: class=0x020000 card=0x00008086 chip=0x10d38086 rev=0x00 hdr=0x00
 Y>     vendor     = 'Intel Corporation'
 Y>     class      = network
 Y>     subclass   = ethernet
 Y>     cap 01[c8] = powerspec 2  supports D0 D3  current D0
 Y>     cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
 Y>     cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
 Y>     cap 11[a0] = MSI-X supports 5 messages in map 0x1c
 Y> 
 Y> top
 Y> 
 Y>   PID USERNAME    THR PRI NICE   SIZE    RES STATE   C   TIME   WCPU COMMAND
 Y>  1592 root          1 112    0  3348K  1316K RUN     0   0:38 85.09% natd
 Y>  1899 postfix       1   4    0 24600K 21336K kqread  0   0:06  0.00% qmgr
 Y>  1762 root          1  44    0 39132K 36772K select  0   0:03  0.00% perl
 
 This doesn't seem related to em(4). Do you mind if I change synopsis of PR
 to "natd consumes 100% CPU"?
 
 Have you tried same setup on 8-STABLE?
 
 -- 
 Totus tuus, Glebius.