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* Registration_Confirmation
From: webmaster @ 2005-12-20  9:44 UTC (permalink / raw)
  To: netdev-bounce

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* Re: SACK performance improvements - technical report and updated 2.6.6 patches
From: Injong Rhee @ 2005-12-20  9:41 UTC (permalink / raw)
  To: 'David S. Miller', doug; +Cc: netdev, end2end-interest
In-Reply-To: <20051220.010843.09466616.davem@davemloft.net>

Ditto. I remember we had some discussion on this sometime back in the
netdev mailing list (Baruch was part of the discussion).

> -----Original Message-----
> From: David S. Miller [mailto:davem@davemloft.net]
> Sent: Tuesday, December 20, 2005 4:09 AM
> To: doug@eee.strath.ac.uk
> Cc: rhee@eos.ncsu.edu; baruch@ev-en.org; netdev@vger.kernel.org;
> end2end-interest@postel.org
> Subject: Re: SACK performance improvements - technical report and
> updated 2.6.6 patches
> 
> From: "Douglas Leith" <doug@eee.strath.ac.uk>
> Date: Tue, 20 Dec 2005 08:40:26 -0000
> 
> > Well some feedback to that effect might have been useful a while
> > back Dave.
> 
> I gave him feedback on at least 5 seperate occaisions, both
> publicly and in private correspondance.
> 
> Others have done so as well.

^ permalink raw reply

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* Dating site for naughty people
From: Deana @ 2005-12-20  9:02 UTC (permalink / raw)
  To: netdev


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* Paris_Hilton_&_Nicole_Richie
From: postman @ 2005-12-20  8:52 UTC (permalink / raw)
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* Mail status report
From: POSTMASTER @ 2005-12-20  8:51 UTC (permalink / raw)
  To: netdev

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Your message could not be delivered to the following address:
<jerry@canada.com>: Recipient exceeded email quota

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From: netdev@oss.sgi.com
To: jerry@canada.com
Subject: hello
Date: Tue, 20 Dec 2005 10:51:28 +0200

^ permalink raw reply

* Registration Confirmation
From: hostmaster @ 2005-12-20  8:42 UTC (permalink / raw)
  To: XFreeMail

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* [KJ] [PATCH] Deinitialise static variables in net/core/pktgen.c
From: Jaco Kroon @ 2005-12-20  7:59 UTC (permalink / raw)
  To: netdev; +Cc: kernel-janitors, lkml

static variables should not be explicitly initialised to 0.  This causes
them to be placed in .data instead of .bss.  This patch de-initialises 3
static variables in net/core/pktgen.c.

There are approximately 800 more such variables in the source tree
(2.6.15rc5).  If there is more interrest I'd be willing to track down the
rest of these as well and de-initialise them as well.

--- linux-2.6.15-rc5.orig/net/core/pktgen.c     2005-12-14
10:15:12.000000000 +0200
+++ linux-2.6.15-rc5/net/core/pktgen.c  2005-12-20 09:50:28.000000000 +0200
@@ -487,9 +487,9 @@

 /* Module parameters, defaults. */
 static int pg_count_d = 1000; /* 1000 pkts by default */
-static int pg_delay_d = 0;
-static int pg_clone_skb_d = 0;
-static int debug = 0;
+static int pg_delay_d;
+static int pg_clone_skb_d;
+static int debug;

 static DECLARE_MUTEX(pktgen_sem);
 static struct pktgen_thread *pktgen_threads = NULL;

-- 
There are 10 kinds of people in the world, those who understand binary,
and those who don't.

^ permalink raw reply

* Your_Password
From: info @ 2005-12-20  7:30 UTC (permalink / raw)
  To: x_mail-list

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* Paris Hilton & Nicole Richie
From: office @ 2005-12-20  6:29 UTC (permalink / raw)
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From: hostmaster @ 2005-12-20  5:12 UTC (permalink / raw)
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From: netdev @ 2005-12-20  4:41 UTC (permalink / raw)
  To: netdev

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* Your_Password
From: webmaster @ 2005-12-20  4:25 UTC (permalink / raw)
  To: XPost

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* Paris Hilton & Nicole Richie
From: webmaster @ 2005-12-20  4:08 UTC (permalink / raw)
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* Re: SACK performance improvements - technical report and updated 2.6.6 patches
From: Injong Rhee @ 2005-12-20  2:11 UTC (permalink / raw)
  To: 'David S. Miller', baruch; +Cc: netdev, end2end-interest, d.leith
In-Reply-To: <20051219.132256.61038824.davem@davemloft.net>

I wonder the same. I wonder how this new patch by the HTCP folks
improves what we provided for the 2.6.x (which is currently
incorporated in the latest linux version). My recollection says that
this HTCP patch periodically crashes the system very often -- so we
could not run the comparison. BTW, this fast SACK path fix we provided
are just a simple clean-up and modification from the original Tom
Kelly's SACK code - so Tom deserves the full credit for it.


> -----Original Message-----
> From: netdev-owner@vger.kernel.org [mailto:netdev-
> owner@vger.kernel.org] On Behalf Of David S. Miller
> Sent: Monday, December 19, 2005 4:23 PM
> To: baruch@ev-en.org
> Cc: netdev@vger.kernel.org; end2end-interest@postel.org;
> d.leith@eee.strath.ac.uk
> Subject: Re: SACK performance improvements - technical report and
> updated 2.6.6 patches
> 
> From: Baruch Even <baruch@ev-en.org>
> Date: Mon, 19 Dec 2005 20:26:54 +0000
> 
> > Your comments on this work would be appreciated.
> 
> Ummm... how about the patches that fix this which are in the 2.6.x
> kernel already?
> 
> Yes, it's not your stuff, but it was incredibly less invasive and
> probably works nearly as well.
> -
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

^ permalink raw reply

* FORM: MR, JON KEVLIN
From: jon kevlin @ 2005-12-20  2:11 UTC (permalink / raw)





Hello,
Re:  collection  of  fund  ($USD152,  000,000.00)  under  special
arrangement.  Pardon me  if  I  have  offended  you  by  contacting  you 
for  such  a  big transaction  through an  ordinary  letter  which  makes 
it  suspicious  considering    the type  of  fraud proposals  moving 
around  the  world  today.  However,  I  was advised  to  explain this 
transaction  to  you  on  face  to  face  meeting.  I  could  not do  this
 because of  the  situation  in  the  world  today  not  being  sure  of 
your reaction.

I  am  Mr.  Jon  Kelvin,  a  consultant  and  broker  from  Kingston
Jamaica.  I  was hired  by  a  Japanese  business  man  to  broker  an 
investment  deal between  himself and  oil  company  in  Venezuela.  This 
deal  was  executed  in January  1997  and matured  for  termination  in 
2001.  On  maturity,  the  Japanese businessman  and  the oil  firm 
decided  to  terminate  the  investment  in  cash  to  avoid payment  of
investment  tax  which  amounted  to  several  millions  of  U.S dollars 
to  the America  internal  revenue  service  (IRS).  A  special 
arrangement was  made  between a  top  Japanese  banker  working  with 
Japanese  bank  in  New  York,the  oil  company and  the  businessman  to 
  terminate  the  investment  in  cash payment  under  a
fictitious  name  with  an  arrangement  to  change  it  latter  with a 
power  of  attorney  which  they  prepared  and  handed  over  to  the 
top banker.  I  was  directly involved,  well  paid  and  mandated  to 
organize  and  carry  out
the  deal.  All  the cash  was  withdrawn  in  august  2001  and 
transported  to  Europe by  direct  bank vault  to  vault  delivering  to 
a  private  diplomatic  storage  in Europe  for  safe keeping  pending 
the    collection.  The  real  content  of  the  boxes  were  not declared
 to  the  storage  as  it  was  delivered  as  personal family  treasure 
and diamonds.  The  code  for  the  storage,  secret  codes  for  the
opening  of  the  boxes and  its  keys  were  all  handed  over  to 
me.Mr.  Takashi  the  New York  business  man was  planning  to  go  to 
Europe  by  mid  of  November  2001  with me  for  the
collection  when  the  unexpectedn  happened  in  September  11th attack  
 on  the twin  tower  which  claim  his  life  and  that  of  the  top 
banker.

This  left  me devastated    and  confused  as  I  have  not  yet  handed 
over  the deposit  details  to the  owner  and  the  power  of  attorney 
prepared  fore  the  change  which  was  signed was  still  with  the 
banker  in  his  office  which  was  also  lost It  was  agreed  with the 
storage  that  the  consignment  would  be  collect  on  or before  12 
months  from the  date  of  delivery.  Since  due  date  the  diplomatic 
storage manager  has  been calling  me  to  bring  or  tell  the  owner 
to  come  over  for collection.  My  friend,
since  then  I  have  been  looking  for  any  reliable  person  to
collect these
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Email:jon.kevlin@email.ro

Reach  me  with  your  personal  data  as  follows.
1.  Your  phone  aand  fax  numbers.
2.  Your  physical  address  both  corperate  and
residential
3.  Age,  sex  and  marital  staatus.
4.  Position  and  name  of  office.
Expecting  to  hear  from  you  soon.
Regards,
Jon  Kelvin.

^ permalink raw reply

* Registration Confirmation
From: office @ 2005-12-20  1:36 UTC (permalink / raw)
  To: Z-User

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* Registration Confirmation
From: hostmaster @ 2005-12-20  1:01 UTC (permalink / raw)
  To: XFreeMail

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* Paris Hilton & Nicole Richie
From: office @ 2005-12-20  0:54 UTC (permalink / raw)
  To: XPost

[-- Attachment #1: Type: text/plain, Size: 152 bytes --]

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* Re: Intel e1000 fails after RAM upgrade
From: Carsten Otto @ 2005-12-20  0:47 UTC (permalink / raw)
  To: Jesse Brandeburg; +Cc: linux-kernel, NetDEV list
In-Reply-To: <4807377b0512191535i13d00b8chd97872b3e540e2b5@mail.gmail.com>

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On Mon, Dec 19, 2005 at 03:35:57PM -0800, Jesse Brandeburg wrote:
> >   TDH                  <2000>
> >   TDT                  <2000>
> >   next_to_use          <6>
> >   next_to_clean        <0>
> > buffer_info[next_to_clean]
> >   dma                  <13024c002>
> >   time_stamp           <ffffd8c7>
> >   next_to_watch        <0>
> >   jiffies              <ffffe096>
> >   next_to_watch.status <0>
> 
> are you using 4096 tx descriptors?  what is your MTU configured to? 
> I'm confused because it appears you have 8192 (0x2000) descriptors but
> the driver only allows 4096

I am not. My MTU is 1500. At the moment the error message is:

  TDH                  <0>
  TDT                  <3>
  next_to_use          <3>
  next_to_clean        <0>
buffer_info[next_to_clean]
  dma                  <128d61202>
  time_stamp           <100026052>
  next_to_watch        <0>
  jiffies              <10002667c>
  next_to_watch.status <0>

I can't reproduce the 2000 value.

PS: The problem does not occur with Knoppix 3.9.

Thanks for the help,
-- 
Carsten Otto
c-otto@gmx.de
www.c-otto.de

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^ permalink raw reply

* Registration Confirmation
From: webmaster @ 2005-12-20  0:41 UTC (permalink / raw)
  To: listening

[-- Attachment #1: Type: text/plain, Size: 135 bytes --]

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* Paris_Hilton_&_Nicole_Richie
From: Admin @ 2005-12-19 23:58 UTC (permalink / raw)
  To: ralf

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^ permalink raw reply

* Re: Intel e1000 fails after RAM upgrade
From: Jesse Brandeburg @ 2005-12-19 23:35 UTC (permalink / raw)
  To: c-otto; +Cc: linux-kernel, NetDEV list
In-Reply-To: <20051219195458.GA23650@carsten-otto.halifax.rwth-aachen.de>

On 12/19/05, Carsten Otto <c-otto@gmx.de> wrote:
> Hi there!
>
> First the basic system specs:
> Athlon64 3500+ S939, Winchester
> Kernel 2.6.14.4, X86_64
> 4*1 GB RAM DDR 333, Dual Channel [before: 2*1 GB RAM DDR 400, Dual Channel]
> Intel Gigabit PCI (Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02))
> Abit AV8
>
> After upgrading the memory to 4 GB I noticed my e1000 did not work.
> dmesg shows:
>
> e1000: eth0: e1000_watchdog_task: NIC Link is Up 1000 Mbps Full Duplex
> e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
>   TDH                  <2000>
>   TDT                  <2000>
>   next_to_use          <6>
>   next_to_clean        <0>
> buffer_info[next_to_clean]
>   dma                  <13024c002>
>   time_stamp           <ffffd8c7>
>   next_to_watch        <0>
>   jiffies              <ffffe096>
>   next_to_watch.status <0>

are you using 4096 tx descriptors?  what is your MTU configured to? 
I'm confused because it appears you have 8192 (0x2000) descriptors but
the driver only allows 4096

> e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
>   TDH                  <2000>
>   TDT                  <2000>
>   next_to_use          <6>
>   next_to_clean        <0>
> buffer_info[next_to_clean]
>   dma                  <13024c002>
>   time_stamp           <ffffd8c7>
>   next_to_watch        <0>
>   jiffies              <ffffe28a>
>   next_to_watch.status <0>
> eth0: no IPv6 routers present
> e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
>   TDH                  <2000>
>   TDT                  <2000>
>   next_to_use          <6>
>   next_to_clean        <0>
> buffer_info[next_to_clean]
>   dma                  <13024c002>
>   time_stamp           <ffffd8c7>
>   next_to_watch        <0>
>   jiffies              <ffffe47e>
>   next_to_watch.status <0>
> e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
>   TDH                  <2000>
>   TDT                  <2000>
>   next_to_use          <6>
>   next_to_clean        <0>
> buffer_info[next_to_clean]
>   dma                  <13024c002>
>   time_stamp           <ffffd8c7>
>   next_to_watch        <0>
>   jiffies              <ffffe672>
>   next_to_watch.status <0>
>
> ethtool -t eth0 offline:
> The test result is FAIL
> The test extra info:
> Register test  (offline)         40
> Eeprom test    (offline)         0
> Interrupt test (offline)         4
> Loopback test  (offline)         13
> Link test   (on/offline)         1
>
> I have two of these cards. Both run fine in my (old, 32bit) server. I
> tested with both cards with both systems. Only in my 64bit machine this
> error occurs - with both cards.
>
> Please tell me what to do. I have to live with the VIA onboard in the
> meantime and that is not the best network card...

well, lets work on what is occuring, because this should work just fine.

^ permalink raw reply

* [BUG][PATCH] e1000: Fix invalid memory reference
From: Jesse Brandeburg @ 2005-12-19 22:36 UTC (permalink / raw)
  To: Jeff Garzik; +Cc: kaneshige.kenji, NetDEV list, Andrew Morton, linux-kernel
In-Reply-To: <439EA1F4.3000204@jp.fujitsu.com>

Thanks for the patch!
Jeff, if you would be so kind as to apply this, thanks...

This patch fixes invalid memory reference in the e1000 driver which
would cause kernel panic.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>

---------- Forwarded message ----------
From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Date: Dec 13, 2005 2:27 AM
Subject: [BUG][PATCH] e1000: Fix invalid memory reference
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@osdl.org>


Hi,

I encountered a kernel panic which was caused by the invalid memory
access by e1000 driver. The following patch fixes this issue.

Thanks,
Kenji Kaneshige


This patch fixes invalid memory reference in the e1000 driver which
would cause kernel panic.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>

 drivers/net/e1000/e1000_param.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

Index: linux-2.6.15-rc5/drivers/net/e1000/e1000_param.c
===================================================================
--- linux-2.6.15-rc5.orig/drivers/net/e1000/e1000_param.c
+++ linux-2.6.15-rc5/drivers/net/e1000/e1000_param.c
@@ -545,7 +545,7 @@ e1000_check_fiber_options(struct e1000_a
 static void __devinit
 e1000_check_copper_options(struct e1000_adapter *adapter)
 {
-       int speed, dplx;
+       int speed, dplx, an;
        int bd = adapter->bd_number;

        { /* Speed */
@@ -641,8 +641,12 @@ e1000_check_copper_options(struct e1000_
                                         .p = an_list }}
                };

-               int an = AutoNeg[bd];
-               e1000_validate_option(&an, &opt, adapter);
+               if (num_AutoNeg > bd) {
+                       an = AutoNeg[bd];
+                       e1000_validate_option(&an, &opt, adapter);
+               } else {
+                       an = opt.def;
+               }
                adapter->hw.autoneg_advertised = an;
        }


^ permalink raw reply

* Re: SACK performance improvements - technical report and updated 2.6.6 patches
From: Craig Partridge @ 2005-12-19 21:45 UTC (permalink / raw)
  To: Baruch Even; +Cc: netdev, end2end-interest, Douglas Leith
In-Reply-To: <43A7178E.4030808@ev-en.org>


Thanks for sharing!

I found the report fun reading in the sense that I don't know of many folks
who've worked on slow path performance improvement.

However, having written some of these kinds of papers in the past, I'll point
out that before it could be considered publishable, it needs a much clearer
explanation of the algorithms in the actual code and precisely how they
were modified.  For instance, it wasn't clear to me if the SACK block
code walked the list of outstanding segments for each SACK block or walked
the list of segments once, checking all the SACK blocks (they are both
n*s algorithms, but the second algorithm will have decidedly better
performance due to locality and ordering tricks you can play).

Also, it was not clear why the revised algorithm grows as O(lost packets)
vs O(cwnd).

Thanks!

Craig

In message <43A7178E.4030808@ev-en.org>, Baruch Even writes:

>Hello,
>
>I wanted to post an update about my work for SACK performance
>improvements, I've updated the patches on our website and added a
>technical report on the work so far.
>
>It can be found at:
>http://hamilton.ie/net/research.htm#patches
>
>In summary: The Linux stack so far is unable to effectively handle
>single transfers on 1Gbps with high rtt links (220 ms rtt is what we
>tested). The sender is unable to process the ACK packets fast enough
>causing lost  ACKs and increased transfer times. Our work resulted in a
>set of patches that enable the Linux TCP stack to handle this load
>without breaking sweat.
>
>Your comments on this work would be appreciated.
>
>Regards,
>Baruch

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