Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-19 Thread Pyun YongHyeon
On Fri, Oct 17, 2008 at 03:21:48PM +0200, Aniruddha wrote:
 > On Thu, 2008-10-16 at 08:56 +0900, Pyun YongHyeon wrote:
 > > It seems that msk(4) in HEAD does not build correctly on RELENG_7.
 > > Try attached patch.
 > > 
 > > Save attached patch to /path/to/patch
 > > #cd /usr/src/sys/dev/msk
 > > #patch -p0 < /path/to/patch/msk.watchdog.diff
 > > And rebuild your kernel.
 > 
 > This patch failed with the following error:
 > 
 > /if_msk.c
 > /usr/src/sys/dev/msk/if_msk.c:845:50: error: macro "MEXTADD" passed 8
 > arguments, but takes just 7
 > /usr/src/sys/dev/msk/if_msk.c: In function 'msk_jumbo_newbuf':
 > /usr/src/sys/dev/msk/if_msk.c:844: error: 'MEXTADD' undeclared (first
 > use in this function)
 > /usr/src/sys/dev/msk/if_msk.c:844: error: (Each undeclared identifier is
 > reported only once
 > /usr/src/sys/dev/msk/if_msk.c:844: error: for each function it appears
 > in.)
 > *** Error code 1
 > 
 > Stop in /usr/obj/usr/src/sys/MYKERNEL.
 > *** Error code 1
 > 
 > Stop in /usr/src.
 > *** Error code 1
 > 
 > Stop in /usr/src.

Are you sure you've backed out any changes to if_msk.c/if_mskreg.h?
You should apply the patch above to if_msk.c/if_mskreg.h in
7.1-PRELEASE. I've verified compilation testing and it should build
without problems.

-- 
Regards,
Pyun YongHyeon
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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-17 Thread Aniruddha
On Thu, 2008-10-16 at 08:56 +0900, Pyun YongHyeon wrote:
> It seems that msk(4) in HEAD does not build correctly on RELENG_7.
> Try attached patch.
> 
> Save attached patch to /path/to/patch
> #cd /usr/src/sys/dev/msk
> #patch -p0 < /path/to/patch/msk.watchdog.diff
> And rebuild your kernel.

This patch failed with the following error:

/if_msk.c
/usr/src/sys/dev/msk/if_msk.c:845:50: error: macro "MEXTADD" passed 8
arguments, but takes just 7
/usr/src/sys/dev/msk/if_msk.c: In function 'msk_jumbo_newbuf':
/usr/src/sys/dev/msk/if_msk.c:844: error: 'MEXTADD' undeclared (first
use in this function)
/usr/src/sys/dev/msk/if_msk.c:844: error: (Each undeclared identifier is
reported only once
/usr/src/sys/dev/msk/if_msk.c:844: error: for each function it appears
in.)
*** Error code 1

Stop in /usr/obj/usr/src/sys/MYKERNEL.
*** Error code 1

Stop in /usr/src.
*** Error code 1

Stop in /usr/src.


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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Pyun YongHyeon
On Wed, Oct 15, 2008 at 04:24:21PM +0200, Aniruddha wrote:
 > On Wed, 2008-10-15 at 21:09 +0900, PYUN Yong-Hyeon wrote:
 > > This controller is known to buggy one. See below.
 > > 
 > > [...]
 > > 
 > >  > > Trying to mount root from ufs:/dev/ad16s3a
 > >  > > WARNING: / was not properly dismounted
 > >  > > GEOM_LABEL: Label ext2fs/home removed.
 > >  > > GEOM_LABEL: Label ext2fs/data removed.
 > >  > > mskc0: Uncorrectable PCI Express error
 > >  > > mskc0: Uncorrectable PCI Express error
 > >  > 
 > >  > Those errors at the end of your dmesg don't look good; could be the sign
 > >  > of a NIC or motherboard that's going bad, or possibly a very strange
 > >  > driver problem.
 > > 
 > > I guess the message above could be safely ignored.
 > > 
 > >  > 
 > >  > Adding Yong-Hyeon PYUN to this thread, since he helps maintain the
 > >  > msk(4) driver.  Yong-Hyeon, do you know of any conditions where heavy
 > >  > network I/O could cause msk(4) to lock up or stop transmitting traffic,
 > >  > or possibly hard-lock on ifconfig down/up?
 > >  > 
 > > 
 > > I think workaround for the controller bug was committed to HEAD(SVN
 > > r183346). To original poster, would you try latest if_msk.c from
 > > HEAD?(Just copy if_msk.c/if_mskreg.h from HEAD to your box.)
 > > 
 > 
 > You got to help me a little bit here. How do I achieve this? Btw I am
 > running FreeBSD 7.1 BETA. Doesn't that mean the fix is already applied?
 > 

It seems that msk(4) in HEAD does not build correctly on RELENG_7.
Try attached patch.

Save attached patch to /path/to/patch
#cd /usr/src/sys/dev/msk
#patch -p0 < /path/to/patch/msk.watchdog.diff
And rebuild your kernel.

-- 
Regards,
Pyun YongHyeon
Index: if_msk.c
===
--- if_msk.c(revision 183165)
+++ if_msk.c(working copy)
@@ -244,6 +244,9 @@
 static int msk_handle_events(struct msk_softc *);
 static void msk_handle_hwerr(struct msk_if_softc *, uint32_t);
 static void msk_intr_hwerr(struct msk_softc *);
+#ifndef __NO_STRICT_ALIGNMENT
+static __inline void msk_fixup_rx(struct mbuf *);
+#endif
 static void msk_rxeof(struct msk_if_softc *, uint32_t, int);
 static void msk_jumbo_rxeof(struct msk_if_softc *, uint32_t, int);
 static void msk_txeof(struct msk_if_softc *, int);
@@ -783,7 +786,12 @@
return (ENOBUFS);
 
m->m_len = m->m_pkthdr.len = MCLBYTES;
-   m_adj(m, ETHER_ALIGN);
+   if ((sc_if->msk_flags & MSK_FLAG_RAMBUF) == 0)
+   m_adj(m, ETHER_ALIGN);
+#ifndef __NO_STRICT_ALIGNMENT
+   else
+   m_adj(m, MSK_RX_BUF_ALIGN);
+#endif
 
if (bus_dmamap_load_mbuf_sg(sc_if->msk_cdata.msk_rx_tag,
sc_if->msk_cdata.msk_rx_sparemap, m, segs, &nsegs,
@@ -840,7 +848,12 @@
return (ENOBUFS);
}
m->m_pkthdr.len = m->m_len = MSK_JLEN;
-   m_adj(m, ETHER_ALIGN);
+   if ((sc_if->msk_flags & MSK_FLAG_RAMBUF) == 0)
+   m_adj(m, ETHER_ALIGN);
+#ifndef __NO_STRICT_ALIGNMENT
+   else
+   m_adj(m, MSK_RX_BUF_ALIGN);
+#endif
 
if (bus_dmamap_load_mbuf_sg(sc_if->msk_cdata.msk_jumbo_rx_tag,
sc_if->msk_cdata.msk_jumbo_rx_sparemap, m, segs, &nsegs,
@@ -1041,14 +1054,16 @@
 {
int next;
int i;
-   uint8_t val;
 
/* Get adapter SRAM size. */
-   val = CSR_READ_1(sc, B2_E_0);
-   sc->msk_ramsize = (val == 0) ? 128 : val * 4;
+   sc->msk_ramsize = CSR_READ_1(sc, B2_E_0) * 4;
if (bootverbose)
device_printf(sc->msk_dev,
"RAM buffer size : %dKB\n", sc->msk_ramsize);
+   if (sc->msk_ramsize == 0)
+   return (0);
+
+   sc->msk_pflags |= MSK_FLAG_RAMBUF;
/*
 * Give receiver 2/3 of memory and round down to the multiple
 * of 1024. Tx/Rx RAM buffer size of Yukon II shoud be multiple
@@ -1412,6 +1427,7 @@
sc_if->msk_if_dev = dev;
sc_if->msk_port = port;
sc_if->msk_softc = sc;
+   sc_if->msk_flags = sc->msk_pflags;
sc->msk_if[port] = sc_if;
/* Setup Tx/Rx queue register offsets. */
if (port == MSK_PORT_A) {
@@ -1976,6 +1992,7 @@
struct msk_rxdesc *jrxd;
struct msk_jpool_entry *entry;
uint8_t *ptr;
+   bus_size_t rxalign;
int error, i;
 
mtx_init(&sc_if->msk_jlist_mtx, "msk_jlist_mtx", NULL, MTX_DEF);
@@ -2107,9 +2124,16 @@
goto fail;
}
 
+   rxalign = 1;
+   /*
+* Workaround hardware hang which seems to happen when Rx buffer
+* is not aligned on multiple of FIFO word(8 bytes).
+*/
+   if ((sc_if->msk_flags & MSK_FLAG_RAMBUF) != 0)
+   rxalign = MSK_RX_BUF_ALIGN;
/* Create tag for Rx buffers. */
error = bus_dma_tag_create(sc_if->msk_cdata.msk_parent_tag,/* parent */
-   1, 0,   /* alignment, boundary */
+   rxalign, 0, /* alignment, bo

Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 10:02:46PM +0200, Aniruddha wrote:
> On Wed, 2008-10-15 at 11:49 -0700, Jeremy Chadwick wrote:
> > How exactly did you download the URLs I gave you?
> > 
> > Can you show me what's on line 241 of if_msk.c?
> > 
> > A 'grep ^#include if_msk.c' for me returns lines which only include
> > filenames surrounded with "" or <>.
>  
>  I downloaded the files this way:
> 
> wget 
> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/msk/if_msk.c?rev=1.34;content-type=text%2Fplain

This is wrong.  Your shell has interpreted variables in the URL, and you
ended up downloading the wrong URL, which caused HTML and other things
to appear in the file.  Is this your first time using UNIX?  This is a
little surprising.

You need to do (note the apostrophes, DO NOT use double-quotes):

$ wget -O if_msk.c 
'http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/msk/if_msk.c?rev=1.34;content-type=text%2Fplain'

And be sure to do the same for the include file (change the -O argument,
obviously).

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 07:26:36PM +0200, Aniruddha wrote:
> On Wed, 2008-10-15 at 07:43 -0700, Jeremy Chadwick wrote:
> > Now you need to rebuild the kernel and install the kernel.  In this
> > scenario, when building the kernel DO NOT use any "-j" flags, as if the
> > driver doesn't build, you'll be scrolling back through pages of data to
> > try and find out why.
> > 
> > If the build doesn't occur successfully, paste the errors you get
> > here and one of us can try to figure out why.
> > 
> > Otherwise, installkernel and reboot.  You should not need to build world
> > for this.
> 
> Thanks for the extensive description. Unfortunately I got the following
> error:
>
> > param inline-unit-growth=100 --param large-function-growth=1000  
> > -mno-align-long
> > -strings -mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow -mno-sse 
> > -mno-sse2 -m
> > no-sse3 -ffreestanding
> > /usr/src/sys/dev/msk/if_msk.c:241:10: error: #include expects "FILENAME" or 
> > 

How exactly did you download the URLs I gave you?

Can you show me what's on line 241 of if_msk.c?

A 'grep ^#include if_msk.c' for me returns lines which only include
filenames surrounded with "" or <>.

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Aniruddha
On Wed, 2008-10-15 at 07:43 -0700, Jeremy Chadwick wrote:
> Now you need to rebuild the kernel and install the kernel.  In this
> scenario, when building the kernel DO NOT use any "-j" flags, as if the
> driver doesn't build, you'll be scrolling back through pages of data to
> try and find out why.
> 
> If the build doesn't occur successfully, paste the errors you get
> here and one of us can try to figure out why.
> 
> Otherwise, installkernel and reboot.  You should not need to build world
> for this.

Thanks for the extensive description. Unfortunately I got the following
error:


> 
> param inline-unit-growth=100 --param large-function-growth=1000  
> -mno-align-long
> -strings -mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2 
> -m
> no-sse3 -ffreestanding
> /usr/src/sys/dev/msk/if_msk.c:241:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:244:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:245:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:246:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:247:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:248:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:249:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:250:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:251:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:252:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:253:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:254:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:255:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:256:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:258:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:259:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:260:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:261:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:262:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:263:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:264:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:265:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:267:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:268:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:269:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:270:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:271:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:273:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:274:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:275:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:276:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:278:10: error: #include expects "FILENAME" or 
>  ENAME>
> /usr/src/sys/dev/msk/if_msk.c:279:10: error: #include expects "FILENAME" or 
>
> ENAME>
> /usr/src/sys/dev/msk/if_msk.c:280:10: error: #include expects "FILENAME" or 
>
> ENAME>
> /usr/src/sys/dev/msk/if_msk.c:282:10: error: #include expects "FILENAME" or 
>
> ENAME>
> /usr/src/sys/dev/msk/if_msk.c:283:10: error: #include expects "FILENAME" or 
>
> ENAME>
> /usr/src/sys/dev/msk/if_msk.c:285:10: error: #include expects "FILENAME" or 
>
> ENAME>
> /usr/src/sys/dev/msk/if_msk.c:292:10: error: #include expects "FILENAME" or 
>
> ENAME>
> mkdep: compile failed
> *** Error code 1
> 
> Stop in /usr/obj/usr/src/sys/MYKERNEL.
> *** Error code 1
> 
> Stop in /usr/src.
> *** Error code 1
> 
> Stop in /usr/src.


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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 04:24:21PM +0200, Aniruddha wrote:
> On Wed, 2008-10-15 at 21:09 +0900, PYUN Yong-Hyeon wrote:
> > This controller is known to buggy one. See below.
> > 
> > [...]
> > 
> >  > > Trying to mount root from ufs:/dev/ad16s3a
> >  > > WARNING: / was not properly dismounted
> >  > > GEOM_LABEL: Label ext2fs/home removed.
> >  > > GEOM_LABEL: Label ext2fs/data removed.
> >  > > mskc0: Uncorrectable PCI Express error
> >  > > mskc0: Uncorrectable PCI Express error
> >  > 
> >  > Those errors at the end of your dmesg don't look good; could be the sign
> >  > of a NIC or motherboard that's going bad, or possibly a very strange
> >  > driver problem.
> > 
> > I guess the message above could be safely ignored.
> > 
> >  > 
> >  > Adding Yong-Hyeon PYUN to this thread, since he helps maintain the
> >  > msk(4) driver.  Yong-Hyeon, do you know of any conditions where heavy
> >  > network I/O could cause msk(4) to lock up or stop transmitting traffic,
> >  > or possibly hard-lock on ifconfig down/up?
> >  > 
> > 
> > I think workaround for the controller bug was committed to HEAD(SVN
> > r183346). To original poster, would you try latest if_msk.c from
> > HEAD?(Just copy if_msk.c/if_mskreg.h from HEAD to your box.)
> > 
> 
> You got to help me a little bit here. How do I achieve this? Btw I am
> running FreeBSD 7.1 BETA. Doesn't that mean the fix is already applied?

FreeBSD 7.1-BETA == RELENG_7 in CVS tag terms.
FreeBSD 8.0 == CURRENT == HEAD in CVS tag terms.

You need to download the data at the below links and save the output
in files shown on the left:

   if_msk.c -- 
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/msk/if_msk.c?rev=1.34;content-type=text%2Fplain
if_mskreg.h -- 
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/msk/if_mskreg.h?rev=1.13;content-type=text%2Fplain

These are the msk(4) Ethernet driver in CURRENT.

*DO NOT* visit those web pages in a browser then copy/paste the output
into a file.  Use a tool like fetch(1) or wget(1) to do the work for you.
It's not hard.

Once you have those two files, you will need to replace your existing
driver code with the new files.  First make backups:

$ cd /usr/src/sys/dev/msk
$ cp -p if_msk.c if_msk.c.orig
$ cp -p if_mskreg.h if_mskreg.h.orig

Now replace the old code with the new:

$ cd /wherever/you/downloaded/the/files
$ mv if_msk.c /usr/src/sys/dev/msk
$ mv if_mskreg.h /usr/src/sys/dev/msk

Now you need to rebuild the kernel and install the kernel.  In this
scenario, when building the kernel DO NOT use any "-j" flags, as if the
driver doesn't build, you'll be scrolling back through pages of data to
try and find out why.

If the build doesn't occur successfully, paste the errors you get
here and one of us can try to figure out why.

Otherwise, installkernel and reboot.  You should not need to build world
for this.

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Aniruddha
On Wed, 2008-10-15 at 21:09 +0900, PYUN Yong-Hyeon wrote:
> This controller is known to buggy one. See below.
> 
> [...]
> 
>  > > Trying to mount root from ufs:/dev/ad16s3a
>  > > WARNING: / was not properly dismounted
>  > > GEOM_LABEL: Label ext2fs/home removed.
>  > > GEOM_LABEL: Label ext2fs/data removed.
>  > > mskc0: Uncorrectable PCI Express error
>  > > mskc0: Uncorrectable PCI Express error
>  > 
>  > Those errors at the end of your dmesg don't look good; could be the sign
>  > of a NIC or motherboard that's going bad, or possibly a very strange
>  > driver problem.
> 
> I guess the message above could be safely ignored.
> 
>  > 
>  > Adding Yong-Hyeon PYUN to this thread, since he helps maintain the
>  > msk(4) driver.  Yong-Hyeon, do you know of any conditions where heavy
>  > network I/O could cause msk(4) to lock up or stop transmitting traffic,
>  > or possibly hard-lock on ifconfig down/up?
>  > 
> 
> I think workaround for the controller bug was committed to HEAD(SVN
> r183346). To original poster, would you try latest if_msk.c from
> HEAD?(Just copy if_msk.c/if_mskreg.h from HEAD to your box.)
> 

You got to help me a little bit here. How do I achieve this? Btw I am
running FreeBSD 7.1 BETA. Doesn't that mean the fix is already applied?


-- 
Regards,

Aniruddha




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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 09:09:11PM +0900, PYUN Yong-Hyeon wrote:
> On Wed, Oct 15, 2008 at 04:31:01AM -0700, Jeremy Chadwick wrote:
>  > On Wed, Oct 15, 2008 at 01:17:58PM +0200, Aniruddha wrote:
>  > > On Wed, 2008-10-15 at 00:26 -0700, Jeremy Chadwick wrote:
>  > > > On Wed, Oct 15, 2008 at 09:13:00AM +0200, Aniruddha wrote:
>  > > > > Each time  my internet connection is under heavy lead it gets killed
>  > > > > after a minute of 10. I tried the following commands to get the 
> internet
>  > > > > back up, but nothing helped:
>  > > > > 
>  > > > > /etc/rc.d/netif restart
>  > > > > ifconfig mynic down
>  > > > > ifconfig mynic up
>  > > > > 
>  > > > > Even worse the last time I issued a '/etc/rc.d/netif restart' my 
> whole
>  > > > > system hardlocked (wasn't responding to capslock presses). So far the
>  > > > > only solution has been te reboot the computer. Is there any way I can
>  > > > > prevent my internet connection from getting killed? How do I get it 
> back
>  > > > > up after it has been killed? Thanks in advance!
>  > > > 
>  > > > What network card are you using?  Can you provide output from the
>  > > > following commands?
>  > > > 
>  > > > dmesg
>  > > > vmstat -i
>  > > > netstat -in
>  > > > 
>  > > I have a Marvell Yukon onboard nic.
>  > > 
>  > > 
>  > > Here's the output:
>  > > 
>  > > netstat -in
>  > > 
>  > > NameMtu Network   Address  Ipkts IerrsOpkts
>  > > Oerrs  Coll
>  > > msk0   1500  29 0   25 0 0
>  > > msk0   1500 :0 -5 - -
>  > > msk0   1500 192.168.2.0/2 192.168.2.111  16 -   14 -
>  > > -
>  > > fwe0*  1500   0 00 0 0
>  > > fwip0  1500   0 00 0 0
>  > > lo0   163840 00
>  > > 0 0
>  > > lo0   16384 ::1/128   ::1  0 -0
>  > > - -
>  > > lo0   16384 ::1/64 0 -0 - -
>  > > lo0   16384 127.0.0.0/8   127.0.0.10 -0
>  > > - -
>  > 
>  > This looks okay.  I see no interface errors, which is good.
>  > 
>  > > vmstat -i
>  > > interrupt  total   rate
>  > > irq17: atapci0+   13  0
>  > > irq18: atapci1+ 1045  5
>  > > irq20: uhci0 ehci0 13462 69
>  > > irq21: fwohci0 3  0
>  > > irq23: atapci3102718529
>  > > cpu0: timer   386229   1990
>  > > irq256: mskc0 46  0
>  > > cpu1: timer   376453   1940
>  > > Total 879969   4535
>  > 
>  > msk(4) appears to be using MSI/MSI-X here.
>  > 
>  > One thing worth trying would be to disable MSI/MSI-X.  You can disable
>  > these by adding the following to your /boot/loader.conf :
>  > 
>  > hw.pci.enable_msix="0"
>  > hw.pci.enable_msi="0"
> 
> The command above will disable all MSI/MSIX capability of box.
> If the intention is to disable MSI feature of Marvell network
> controller add "hw.msk.msi_disable="1" to /boot/loader.conf.
> But I don't think you need to disable MSI capability unless you
> have buggy PCI bridges. Without MSI msk(4) would normally share 
> interrupts with other devices(e.g. USB).

Based on your below conclusion (about this particular Marvell NIC and/or
PHY being buggy), I don't think disabling MSI/MSI-X will do any good.

>  > > mskc0:  port 0xb800-0xb8ff mem 
> 0xff8fc000-0xff8f irq 19 at device 0.0 on pci3
>  > > msk0:  on mskc0
>  > > msk0: Ethernet address: 00:1e:8c:5a:62:da
>  > > miibus0:  on msk0
>  > > e1000phy0:  PHY 0 on miibus0
>  > > e1000phy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 
> 1000baseTX-FDX, auto
>  > > mskc0: [FILTER]
> 
> This controller is known to buggy one. See below.
> 
>  > Adding Yong-Hyeon PYUN to this thread, since he helps maintain the
>  > msk(4) driver.  Yong-Hyeon, do you know of any conditions where heavy
>  > network I/O could cause msk(4) to lock up or stop transmitting traffic,
>  > or possibly hard-lock on ifconfig down/up?
>  > 
> 
> I think workaround for the controller bug was committed to HEAD(SVN
> r183346). To original poster, would you try latest if_msk.c from
> HEAD?(Just copy if_msk.c/if_mskreg.h from HEAD to your box.)

As usual, thanks much for the explanation.  :-)

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread PYUN Yong-Hyeon
On Wed, Oct 15, 2008 at 04:31:01AM -0700, Jeremy Chadwick wrote:
 > On Wed, Oct 15, 2008 at 01:17:58PM +0200, Aniruddha wrote:
 > > On Wed, 2008-10-15 at 00:26 -0700, Jeremy Chadwick wrote:
 > > > On Wed, Oct 15, 2008 at 09:13:00AM +0200, Aniruddha wrote:
 > > > > Each time  my internet connection is under heavy lead it gets killed
 > > > > after a minute of 10. I tried the following commands to get the 
 > > > > internet
 > > > > back up, but nothing helped:
 > > > > 
 > > > > /etc/rc.d/netif restart
 > > > > ifconfig mynic down
 > > > > ifconfig mynic up
 > > > > 
 > > > > Even worse the last time I issued a '/etc/rc.d/netif restart' my whole
 > > > > system hardlocked (wasn't responding to capslock presses). So far the
 > > > > only solution has been te reboot the computer. Is there any way I can
 > > > > prevent my internet connection from getting killed? How do I get it 
 > > > > back
 > > > > up after it has been killed? Thanks in advance!
 > > > 
 > > > What network card are you using?  Can you provide output from the
 > > > following commands?
 > > > 
 > > > dmesg
 > > > vmstat -i
 > > > netstat -in
 > > > 
 > > I have a Marvell Yukon onboard nic.
 > > 
 > > 
 > > Here's the output:
 > > 
 > > netstat -in
 > > 
 > > NameMtu Network   Address  Ipkts IerrsOpkts
 > > Oerrs  Coll
 > > msk0   1500  29 0   25 0 0
 > > msk0   1500 :0 -5 - -
 > > msk0   1500 192.168.2.0/2 192.168.2.111  16 -   14 -
 > > -
 > > fwe0*  1500   0 00 0 0
 > > fwip0  1500   0 00 0 0
 > > lo0   163840 00
 > > 0 0
 > > lo0   16384 ::1/128   ::1  0 -0
 > > - -
 > > lo0   16384 ::1/64 0 -0 - -
 > > lo0   16384 127.0.0.0/8   127.0.0.10 -0
 > > - -
 > 
 > This looks okay.  I see no interface errors, which is good.
 > 
 > > vmstat -i
 > > interrupt  total   rate
 > > irq17: atapci0+   13  0
 > > irq18: atapci1+ 1045  5
 > > irq20: uhci0 ehci0 13462 69
 > > irq21: fwohci0 3  0
 > > irq23: atapci3102718529
 > > cpu0: timer   386229   1990
 > > irq256: mskc0 46  0
 > > cpu1: timer   376453   1940
 > > Total 879969   4535
 > 
 > msk(4) appears to be using MSI/MSI-X here.
 > 
 > One thing worth trying would be to disable MSI/MSI-X.  You can disable
 > these by adding the following to your /boot/loader.conf :
 > 
 > hw.pci.enable_msix="0"
 > hw.pci.enable_msi="0"

The command above will disable all MSI/MSIX capability of box.
If the intention is to disable MSI feature of Marvell network
controller add "hw.msk.msi_disable="1" to /boot/loader.conf.
But I don't think you need to disable MSI capability unless you
have buggy PCI bridges. Without MSI msk(4) would normally share 
interrupts with other devices(e.g. USB).

 > 
 > > Copyright (c) 1992-2008 The FreeBSD Project.
 > > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
 > >The Regents of the University of California. All rights reserved.
 > > FreeBSD is a registered trademark of The FreeBSD Foundation.
 > > FreeBSD 7.1-BETA #0: Sun Sep  7 13:49:18 UTC 2008
 > > [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC
 > > Timecounter "i8254" frequency 1193182 Hz quality 0
 > > CPU: Intel(R) Core(TM)2 Duo CPU E8400  @ 3.00GHz (3001.18-MHz 
 > > 686-class CPU)

[...]

 > > mskc0:  port 0xb800-0xb8ff mem 
 > > 0xff8fc000-0xff8f irq 19 at device 0.0 on pci3
 > > msk0:  on mskc0
 > > msk0: Ethernet address: 00:1e:8c:5a:62:da
 > > miibus0:  on msk0
 > > e1000phy0:  PHY 0 on miibus0
 > > e1000phy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 
 > > 1000baseTX-FDX, auto
 > > mskc0: [FILTER]

This controller is known to buggy one. See below.

[...]

 > > Trying to mount root from ufs:/dev/ad16s3a
 > > WARNING: / was not properly dismounted
 > > GEOM_LABEL: Label ext2fs/home removed.
 > > GEOM_LABEL: Label ext2fs/data removed.
 > > mskc0: Uncorrectable PCI Express error
 > > mskc0: Uncorrectable PCI Express error
 > 
 > Those errors at the end of your dmesg don't look good; could be the sign
 > of a NIC or motherboard that's going bad, or possibly a very strange
 > driver problem.

I guess the message above could be safely ignored.

 > 
 > Adding Yong-Hyeon PYUN to this thread, since he helps maintain the
 > msk(4) driver.  Yong-Hyeon, do you know of any conditions where heavy
 > network I/O could cause msk(4) to lock up or stop transmitting traffic,
 > or possibly hard-lock on ifconfig down/up?
 > 

I think workaround for the controller bug was committed to HEAD(SVN
r183346). T

Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Aniruddha
On Wed, 2008-10-15 at 00:26 -0700, Jeremy Chadwick wrote:
> On Wed, Oct 15, 2008 at 09:13:00AM +0200, Aniruddha wrote:
> > Each time  my internet connection is under heavy lead it gets killed
> > after a minute of 10. I tried the following commands to get the internet
> > back up, but nothing helped:
> > 
> > /etc/rc.d/netif restart
> > ifconfig mynic down
> > ifconfig mynic up
> > 
> > Even worse the last time I issued a '/etc/rc.d/netif restart' my whole
> > system hardlocked (wasn't responding to capslock presses). So far the
> > only solution has been te reboot the computer. Is there any way I can
> > prevent my internet connection from getting killed? How do I get it back
> > up after it has been killed? Thanks in advance!
> 
> What network card are you using?  Can you provide output from the
> following commands?
> 
> dmesg
> vmstat -i
> netstat -in
> 
I have a Marvell Yukon onboard nic.


Here's the output:

netstat -in

NameMtu Network   Address  Ipkts IerrsOpkts
Oerrs  Coll
msk0   1500  29 0   25 0 0
msk0   1500 :0 -5 - -
msk0   1500 192.168.2.0/2 192.168.2.111  16 -   14 -
-
fwe0*  1500   0 00 0 0
fwip0  1500   0 00 0 0
lo0   163840 00
0 0
lo0   16384 ::1/128   ::1  0 -0
- -
lo0   16384 ::1/64 0 -0 - -
lo0   16384 127.0.0.0/8   127.0.0.10 -0
- -

vmstat -i
interrupt  total   rate
irq17: atapci0+   13  0
irq18: atapci1+ 1045  5
irq20: uhci0 ehci0 13462 69
irq21: fwohci0 3  0
irq23: atapci3102718529
cpu0: timer   386229   1990
irq256: mskc0 46  0
cpu1: timer   376453   1940
Total 879969   4535
Copyright (c) 1992-2008 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.1-BETA #0: Sun Sep  7 13:49:18 UTC 2008
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Core(TM)2 Duo CPU E8400  @ 3.00GHz (3001.18-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x10676  Stepping = 6
  
Features=0xbfebfbff
  
Features2=0x8e3fd>
  AMD Features=0x2000
  AMD Features2=0x1
  Cores per package: 2
real memory  = 3220701184 (3071 MB)
avail memory = 3146145792 (3000 MB)
ACPI APIC Table: 
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
ioapic0  irqs 0-23 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0:  on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a (3) failed
acpi0: reservation of 10, bff0 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
pcib0:  port 0xcf8-0xcff on acpi0
pci0:  on pcib0
pcib1:  irq 16 at device 1.0 on pci0
pci5:  on pcib1
vgapci0:  port 0xc800-0xc8ff mem 
0xd000-0xdfff,0xff9f-0xff9f irq 16 at device 0.0 on pci5
pci5:  at device 0.1 (no driver attached)
pci0:  at device 27.0 (no driver attached)
pcib2:  irq 16 at device 28.0 on pci0
pci4:  on pcib2
pcib3:  irq 19 at device 28.3 on pci0
pci3:  on pcib3
mskc0:  port 0xb800-0xb8ff mem 
0xff8fc000-0xff8f irq 19 at device 0.0 on pci3
msk0:  on mskc0
msk0: Ethernet address: 00:1e:8c:5a:62:da
miibus0:  on msk0
e1000phy0:  PHY 0 on miibus0
e1000phy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX-FDX, auto
mskc0: [FILTER]
pcib4:  irq 17 at device 28.5 on pci0
pci2:  on pcib4
atapci0:  mem 0xff7fe000-0xff7f irq 17 at device 
0.0 on pci2
atapci0: [ITHREAD]
atapci0: AHCI Version 01.00 controller with 2 ports detected
ata2:  on atapci0
ata2: [ITHREAD]
ata3:  on atapci0
ata3: [ITHREAD]
atapci1:  port 
0xac00-0xac07,0xa880-0xa883,0xa800-0xa807,0xa480-0xa483,0xa400-0xa40f at device 
0.1 on pci2
atapci1: [ITHREAD]
ata4:  on atapci1
ata4: [ITHREAD]
uhci0:  port 0xe480-0xe49f irq 20 at device 29.0 
on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0:  on uhci0
usb0: USB revision 1.0
uhub0:  on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1:  port 0xe800-0xe81f irq 17 at device 29.1 
on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1:  on uhci1
usb1: USB revision 1.0
uhub1:  on usb1
uhub1: 2 ports with 2 removable, self powered
uhci2:  port 0xe880-0xe89f irq 18 at device 29.2 
on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb2

Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 01:40:45PM +0200, Wojciech Puchar wrote:
>>
>> One thing worth trying would be to disable MSI/MSI-X.  You can disable
>> these by adding the following to your /boot/loader.conf :
>>
>> hw.pci.enable_msix="0"
>> hw.pci.enable_msi="0"
>
> what's wrong in MSI interrupts?

Nothing -- but there are known compatibility problems with MSI/MSI-X on
some boards.  I remember reading about this with regards to em(4) not
too long ago.  It's worth ruling out, especially since his problem is
reproducible (if disabling MSI doesn't fix the problem, he can simply
remove those two loader.conf variables and we've ruled out one
possibility).

>>> mskc0: Uncorrectable PCI Express error
>>> mskc0: Uncorrectable PCI Express error
>>
>> Those errors at the end of your dmesg don't look good; could be the sign
>> of a NIC or motherboard that's going bad, or possibly a very strange
>> driver problem.
>
> or just connectors should be cleaner or card isn't fitted well - contact  
> problems.

I'm under the impression his NIC is on-board, not a physical PCI-E card.

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Wojciech Puchar


One thing worth trying would be to disable MSI/MSI-X.  You can disable
these by adding the following to your /boot/loader.conf :

hw.pci.enable_msix="0"
hw.pci.enable_msi="0"


what's wrong in MSI interrupts?


mskc0: Uncorrectable PCI Express error
mskc0: Uncorrectable PCI Express error


Those errors at the end of your dmesg don't look good; could be the sign
of a NIC or motherboard that's going bad, or possibly a very strange
driver problem.


or just connectors should be cleaner or card isn't fitted well - contact 
problems.

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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 01:17:58PM +0200, Aniruddha wrote:
> On Wed, 2008-10-15 at 00:26 -0700, Jeremy Chadwick wrote:
> > On Wed, Oct 15, 2008 at 09:13:00AM +0200, Aniruddha wrote:
> > > Each time  my internet connection is under heavy lead it gets killed
> > > after a minute of 10. I tried the following commands to get the internet
> > > back up, but nothing helped:
> > > 
> > > /etc/rc.d/netif restart
> > > ifconfig mynic down
> > > ifconfig mynic up
> > > 
> > > Even worse the last time I issued a '/etc/rc.d/netif restart' my whole
> > > system hardlocked (wasn't responding to capslock presses). So far the
> > > only solution has been te reboot the computer. Is there any way I can
> > > prevent my internet connection from getting killed? How do I get it back
> > > up after it has been killed? Thanks in advance!
> > 
> > What network card are you using?  Can you provide output from the
> > following commands?
> > 
> > dmesg
> > vmstat -i
> > netstat -in
> > 
> I have a Marvell Yukon onboard nic.
> 
> 
> Here's the output:
> 
> netstat -in
> 
> NameMtu Network   Address  Ipkts IerrsOpkts
> Oerrs  Coll
> msk0   1500  29 0   25 0 0
> msk0   1500 :0 -5 - -
> msk0   1500 192.168.2.0/2 192.168.2.111  16 -   14 -
> -
> fwe0*  1500   0 00 0 0
> fwip0  1500   0 00 0 0
> lo0   163840 00
> 0 0
> lo0   16384 ::1/128   ::1  0 -0
> - -
> lo0   16384 ::1/64 0 -0 - -
> lo0   16384 127.0.0.0/8   127.0.0.10 -0
> - -

This looks okay.  I see no interface errors, which is good.

> vmstat -i
> interrupt  total   rate
> irq17: atapci0+   13  0
> irq18: atapci1+ 1045  5
> irq20: uhci0 ehci0 13462 69
> irq21: fwohci0 3  0
> irq23: atapci3102718529
> cpu0: timer   386229   1990
> irq256: mskc0 46  0
> cpu1: timer   376453   1940
> Total 879969   4535

msk(4) appears to be using MSI/MSI-X here.

One thing worth trying would be to disable MSI/MSI-X.  You can disable
these by adding the following to your /boot/loader.conf :

hw.pci.enable_msix="0"
hw.pci.enable_msi="0"

> Copyright (c) 1992-2008 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>   The Regents of the University of California. All rights reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 7.1-BETA #0: Sun Sep  7 13:49:18 UTC 2008
> [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel(R) Core(TM)2 Duo CPU E8400  @ 3.00GHz (3001.18-MHz 686-class 
> CPU)
>   Origin = "GenuineIntel"  Id = 0x10676  Stepping = 6
>   
> Features=0xbfebfbff
>   
> Features2=0x8e3fd>
>   AMD Features=0x2000
>   AMD Features2=0x1
>   Cores per package: 2
> real memory  = 3220701184 (3071 MB)
> avail memory = 3146145792 (3000 MB)
> ACPI APIC Table: 
> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
>  cpu0 (BSP): APIC ID:  0
>  cpu1 (AP): APIC ID:  1
> ioapic0  irqs 0-23 on motherboard
> kbd1 at kbdmux0
> ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
> acpi0:  on motherboard
> acpi0: [ITHREAD]
> acpi0: Power Button (fixed)
> acpi0: reservation of 0, a (3) failed
> acpi0: reservation of 10, bff0 (3) failed
> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
> pcib0:  port 0xcf8-0xcff on acpi0
> pci0:  on pcib0
> pcib1:  irq 16 at device 1.0 on pci0
> pci5:  on pcib1
> vgapci0:  port 0xc800-0xc8ff mem 
> 0xd000-0xdfff,0xff9f-0xff9f irq 16 at device 0.0 on pci5
> pci5:  at device 0.1 (no driver attached)
> pci0:  at device 27.0 (no driver attached)
> pcib2:  irq 16 at device 28.0 on pci0
> pci4:  on pcib2
> pcib3:  irq 19 at device 28.3 on pci0
> pci3:  on pcib3
> mskc0:  port 0xb800-0xb8ff mem 
> 0xff8fc000-0xff8f irq 19 at device 0.0 on pci3
> msk0:  on mskc0
> msk0: Ethernet address: 00:1e:8c:5a:62:da
> miibus0:  on msk0
> e1000phy0:  PHY 0 on miibus0
> e1000phy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX-FDX, 
> auto
> mskc0: [FILTER]
> pcib4:  irq 17 at device 28.5 on pci0
> pci2:  on pcib4
> atapci0:  mem 0xff7fe000-0xff7f irq 17 at device 
> 0.0 on pci2
> atapci0: [ITHREAD]
> atapci0: AHCI Version 01.00 controller with 2 ports detected
> ata2:  on atapci0
> ata2: [ITHREAD]
> ata3:  on atapci0
> ata3: [ITHREAD]
> atapci1:  port 
> 0xac00-0xac07,0xa880-0xa883,0xa800-0xa807,0xa480-0xa483,0x

Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Wojciech Puchar

netstat -in


I have a Marvell Yukon onboard nic.


that's normal ;) but some NORMAL working NIC.

you may try to disable some features on that nic too
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Re: Under heavy load internet gets killed, only a reboot can bring it back up

2008-10-15 Thread Jeremy Chadwick
On Wed, Oct 15, 2008 at 09:13:00AM +0200, Aniruddha wrote:
> Each time  my internet connection is under heavy lead it gets killed
> after a minute of 10. I tried the following commands to get the internet
> back up, but nothing helped:
> 
> /etc/rc.d/netif restart
> ifconfig mynic down
> ifconfig mynic up
> 
> Even worse the last time I issued a '/etc/rc.d/netif restart' my whole
> system hardlocked (wasn't responding to capslock presses). So far the
> only solution has been te reboot the computer. Is there any way I can
> prevent my internet connection from getting killed? How do I get it back
> up after it has been killed? Thanks in advance!

What network card are you using?  Can you provide output from the
following commands?

dmesg
vmstat -i
netstat -in

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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