Date: Mon, 22 Feb 2010 14:43:57 -0700 From: "Kirk Davis" <kirk.davis@epsb.ca> To: "Mike Tancsa" <mike@sentex.net>, "Jack Vogel" <jfvogel@gmail.com> Cc: freebsd-net@freebsd.org Subject: RE: Intel em0: watchdog timeout Message-ID: <529374128DC1B04D9D037911B8E8F05301C17A56@Exchange26.EDU.epsb.ca> In-Reply-To: <201002222107.o1ML7v3Z059734@lava.sentex.ca> References: <529374128DC1B04D9D037911B8E8F05301C17A51@Exchange26.EDU.epsb.ca> <43416_1266864062_4B82CFBE_43416_81_1_2a41acea1002221043k1b8742c9m8fb484a8e8a4fdda@mail.gmail.com> <529374128DC1B04D9D037911B8E8F05301C17A54@Exchange26.EDU.epsb.ca> <43669_1266865888_4B82D6E0_43669_263_1_2a41acea1002221113v26804200q4f3971c3359dffab@mail.gmail.com> <529374128DC1B04D9D037911B8E8F05301C17A55@Exchange26.EDU.epsb.ca> <201002222107.o1ML7v3Z059734@lava.sentex.ca>
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> -----Original Message----- > From: Mike Tancsa [mailto:mike@sentex.net] > Subject: Re: Intel em0: watchdog timeout > > At 03:46 PM 2/22/2010, Kirk Davis wrote: > >Does this need to be done in loader.conf? It doesn't seem > to take from > >the command line. > ># sysctl dev.em.2.stats=1 > >dev.em.2.stats: -1 -> -1 > > > ># sysctl dev.em.2.stats > >dev.em.2.stats: -1 > > Hi, > After you issue those commands, the driver will spit out a > lot of useful stats to syslog. It will report something like the > following in /var/log/messages > > Feb 22 16:06:31 offsite kernel: em0: Excessive collisions = 0 > Feb 22 16:06:31 offsite kernel: em0: Sequence errors = 0 > Feb 22 16:06:31 offsite kernel: em0: Defer count = 0 > Feb 22 16:06:31 offsite kernel: em0: Missed Packets = 0 > Feb 22 16:06:31 offsite kernel: em0: Receive No Buffers = 0 > Feb 22 16:06:31 offsite kernel: em0: Receive Length Errors = 0 > Feb 22 16:06:31 offsite kernel: em0: Receive errors = 0 > Feb 22 16:06:31 offsite kernel: em0: Crc errors = 0 > Feb 22 16:06:31 offsite kernel: em0: Alignment errors = 0 > Feb 22 16:06:31 offsite kernel: em0: Collision/Carrier > extension errors = 0 > Feb 22 16:06:31 offsite kernel: em0: RX overruns = 0 > Feb 22 16:06:31 offsite kernel: em0: watchdog timeouts = 0 > Feb 22 16:06:31 offsite kernel: em0: RX MSIX IRQ = 0 TX MSIX IRQ = 0 > LINK MSIX IRQ = 0 > Feb 22 16:06:31 offsite kernel: em0: XON Rcvd = 0 > Feb 22 16:06:31 offsite kernel: em0: XON Xmtd = 0 > Feb 22 16:06:31 offsite kernel: em0: XOFF Rcvd = 0 > Feb 22 16:06:31 offsite kernel: em0: XOFF Xmtd = 0 > Feb 22 16:06:31 offsite kernel: em0: Good Packets Rcvd = 2559032551 > Feb 22 16:06:31 offsite kernel: em0: Good Packets Xmtd = 1568751141 > Feb 22 16:06:31 offsite kernel: em0: TSO Contexts Xmtd = 0 > Feb 22 16:06:31 offsite kernel: em0: TSO Contexts Failed = 0 Thanks Mike and Jack. I don't know why I didn'ty notice the output in /var/log/messages Here is the output for the two interfaces that are causing this issue. Feb 22 13:33:52 inet-gw kernel: em0: Excessive collisions = 0 Feb 22 13:33:52 inet-gw kernel: em0: Sequence errors = 0 Feb 22 13:33:52 inet-gw kernel: em0: Defer count = 0 Feb 22 13:33:52 inet-gw kernel: em0: Missed Packets = 24296 Feb 22 13:33:52 inet-gw kernel: em0: Receive No Buffers = 0 Feb 22 13:33:52 inet-gw kernel: em0: Receive Length Errors = 0 Feb 22 13:33:52 inet-gw kernel: em0: Receive errors = 0 Feb 22 13:33:52 inet-gw kernel: em0: Crc errors = 0 Feb 22 13:33:52 inet-gw kernel: em0: Alignment errors = 0 Feb 22 13:33:52 inet-gw kernel: em0: Collision/Carrier extension errors = 0 Feb 22 13:33:52 inet-gw kernel: em0: RX overruns = 0 Feb 22 13:33:52 inet-gw kernel: em0: watchdog timeouts = 6 Feb 22 13:33:52 inet-gw kernel: em0: RX MSIX IRQ = 0 TX MSIX IRQ = 0 LINK MSIX IRQ = 0 Feb 22 13:33:52 inet-gw kernel: em0: XON Rcvd = 0 Feb 22 13:33:52 inet-gw kernel: em0: XON Xmtd = 0 Feb 22 13:33:52 inet-gw kernel: em0: XOFF Rcvd = 0 Feb 22 13:33:52 inet-gw kernel: em0: XOFF Xmtd = 0 Feb 22 13:33:52 inet-gw kernel: em0: Good Packets Rcvd = 424303810 Feb 22 13:33:52 inet-gw kernel: em0: Good Packets Xmtd = 576529136 Feb 22 13:33:52 inet-gw kernel: em0: TSO Contexts Xmtd = 0 Feb 22 13:33:52 inet-gw kernel: em0: TSO Contexts Failed = 0 Feb 22 13:34:12 inet-gw kernel: em2: Excessive collisions = 0 Feb 22 13:34:12 inet-gw kernel: em2: Sequence errors = 0 Feb 22 13:34:12 inet-gw kernel: em2: Defer count = 20 Feb 22 13:34:12 inet-gw kernel: em2: Missed Packets = 68059 Feb 22 13:34:12 inet-gw kernel: em2: Receive No Buffers = 275612 Feb 22 13:34:12 inet-gw kernel: em2: Receive Length Errors = 0 Feb 22 13:34:12 inet-gw kernel: em2: Receive errors = 0 Feb 22 13:34:12 inet-gw kernel: em2: Crc errors = 0 Feb 22 13:34:12 inet-gw kernel: em2: Alignment errors = 0 Feb 22 13:34:12 inet-gw kernel: em2: Collision/Carrier extension errors = 0 Feb 22 13:34:12 inet-gw kernel: em2: RX overruns = 17 Feb 22 13:34:12 inet-gw kernel: em2: watchdog timeouts = 38 Feb 22 13:34:12 inet-gw kernel: em2: RX MSIX IRQ = 0 TX MSIX IRQ = 0 LINK MSIX IRQ = 0 Feb 22 13:34:12 inet-gw kernel: em2: XON Rcvd = 21 Feb 22 13:34:12 inet-gw kernel: em2: XON Xmtd = 8344 Feb 22 13:34:12 inet-gw kernel: em2: XOFF Rcvd = 30 Feb 22 13:34:12 inet-gw kernel: em2: XOFF Xmtd = 9159 Feb 22 13:34:12 inet-gw kernel: em2: Good Packets Rcvd = 713607509 Feb 22 13:34:12 inet-gw kernel: em2: Good Packets Xmtd = 569694020 Feb 22 13:34:12 inet-gw kernel: em2: TSO Contexts Xmtd = 0 Feb 22 13:34:12 inet-gw kernel: em2: TSO Contexts Failed = 0 Feb 22 13:35:10 inet-gw kernel: em2: Excessive collisions = 0 Feb 22 13:35:10 inet-gw kernel: em2: Sequence errors = 0 Feb 22 13:35:10 inet-gw kernel: em2: Defer count = 20 Feb 22 13:35:10 inet-gw kernel: em2: Missed Packets = 68059 Feb 22 13:35:10 inet-gw kernel: em2: Receive No Buffers = 275612 Feb 22 13:35:10 inet-gw kernel: em2: Receive Length Errors = 0 Feb 22 13:35:10 inet-gw kernel: em2: Receive errors = 0 Feb 22 13:35:10 inet-gw kernel: em2: Crc errors = 0 Feb 22 13:35:10 inet-gw kernel: em2: Alignment errors = 0 Feb 22 13:35:10 inet-gw kernel: em2: Collision/Carrier extension errors = 0 Feb 22 13:35:10 inet-gw kernel: em2: RX overruns = 17 Feb 22 13:35:10 inet-gw kernel: em2: watchdog timeouts = 38 Feb 22 13:35:10 inet-gw kernel: em2: RX MSIX IRQ = 0 TX MSIX IRQ = 0 LINK MSIX IRQ = 0 Feb 22 13:35:10 inet-gw kernel: em2: XON Rcvd = 21 Feb 22 13:35:10 inet-gw kernel: em2: XON Xmtd = 8344 Feb 22 13:35:10 inet-gw kernel: em2: XOFF Rcvd = 30 Feb 22 13:35:10 inet-gw kernel: em2: XOFF Xmtd = 9159 Feb 22 13:35:10 inet-gw kernel: em2: Good Packets Rcvd = 715555016 Feb 22 13:35:10 inet-gw kernel: em2: Good Packets Xmtd = 571157561 Feb 22 13:35:10 inet-gw kernel: em2: TSO Contexts Xmtd = 0 Feb 22 13:35:10 inet-gw kernel: em2: TSO Contexts Failed = 0 Feb 22 13:39:12 inet-gw kernel: em2: Excessive collisions = 0 Feb 22 13:39:12 inet-gw kernel: em2: Sequence errors = 0 Feb 22 13:39:12 inet-gw kernel: em2: Defer count = 20 Feb 22 13:39:12 inet-gw kernel: em2: Missed Packets = 68059 Feb 22 13:39:12 inet-gw kernel: em2: Receive No Buffers = 275612 Feb 22 13:39:12 inet-gw kernel: em2: Receive Length Errors = 0 Feb 22 13:39:12 inet-gw kernel: em2: Receive errors = 0 Feb 22 13:39:12 inet-gw kernel: em2: Crc errors = 0 Feb 22 13:39:12 inet-gw kernel: em2: Alignment errors = 0 Feb 22 13:39:12 inet-gw kernel: em2: Collision/Carrier extension errors = 0 Feb 22 13:39:12 inet-gw kernel: em2: RX overruns = 17 Feb 22 13:39:12 inet-gw kernel: em2: watchdog timeouts = 38 Feb 22 13:39:12 inet-gw kernel: em2: RX MSIX IRQ = 0 TX MSIX IRQ = 0 LINK MSIX IRQ = 0 Feb 22 13:39:12 inet-gw kernel: em2: XON Rcvd = 21 Feb 22 13:39:12 inet-gw kernel: em2: XON Xmtd = 8344 Feb 22 13:39:12 inet-gw kernel: em2: XOFF Rcvd = 30 Feb 22 13:39:12 inet-gw kernel: em2: XOFF Xmtd = 9159 Feb 22 13:39:12 inet-gw kernel: em2: Good Packets Rcvd = 723521981 Feb 22 13:39:12 inet-gw kernel: em2: Good Packets Xmtd = 577211431 Feb 22 13:39:12 inet-gw kernel: em2: TSO Contexts Xmtd = 0 Feb 22 13:39:12 inet-gw kernel: em2: TSO Contexts Failed = 0 Can this be the problem? "Receive No Buffers = 275612" ---- Kirk Kirk Davis Senior Network Analyst, ITS Edmonton Public Schools One Kingsway Ave. Edmonton, Alberta, Canada T5H 4G9 phone: 1-780-429-8308
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