Re: 2.4.9 UDP broke?

Re: 2.4.9 UDP broke?

[Steve Kieu]

 --- Jeremiah Johnson <miah@netcis.com> wrote: >
-----BEGIN PGP SIGNED MESSAGE-----
> Hash: MD5
> 
> Hello linux-kernel,
> 
>   I am having very strange problems with 2.4.9 and
> UDP.  Basically,
>   anything using UDP wont work.  Anything using
> TCP/ICMP works fine.

May be it is not the kernel, I dont know but in my box
it works as normal

(I can use speakfreely ; it uses UDP and otehr program
too)


> in the kernel so
>   that shouldn't be the issue, and I have looked at
> pretty much
>   everything I can think of to resolve this issue. 
> Can anybody either
>   point me in the right direction or if needed
> request specific info
>   to fix the problem?
> 
> - --
> Best regards,
>  Jeremiah                         
> mailto:miah@netcis.com
> 
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> -
> To unsubscribe from this list: send the line
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=====
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2.4.9 UDP broke?

[Jeremiah Johnson]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: MD5

Hello linux-kernel,

  I am having very strange problems with 2.4.9 and UDP.  Basically,
  anything using UDP wont work.  Anything using TCP/ICMP works fine.
  I am not even enabling any kind of firewall code in the kernel so
  that shouldn't be the issue, and I have looked at pretty much
  everything I can think of to resolve this issue.  Can anybody either
  point me in the right direction or if needed request specific info
  to fix the problem?

- --
Best regards,
 Jeremiah                          mailto:miah@netcis.com

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Re[2]: 2.4.9 UDP broke?

[Jeremiah Johnson]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: MD5

Hello Steve,

Thursday, August 30, 2001, 10:50:08 PM, you wrote:

SK>  --- Jeremiah Johnson <miah@netcis.com> wrote: >
SK> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: MD5
>>
>> Hello linux-kernel,
>>
>>   I am having very strange problems with 2.4.9 and
>> UDP.  Basically,
>>   anything using UDP wont work.  Anything using
>> TCP/ICMP works fine.

SK> May be it is not the kernel, I dont know but in my box
SK> it works as normal

SK> (I can use speakfreely ; it uses UDP and otehr program
SK> too)

Well considering the only thing I changed in my configuration is the
kernel, I think its a problem there.  Went from 2.4.3-ac? to 2.4.9.
System is RedHat 7.1.. Maybe it has something to do with RedHats
inclusion of a broken compiler, I'll have to check on that when I get
into the office.

I do have 2.4.9 working fine on other systems too.  Strange.
- --
Best regards,
 Jeremiah                            mailto:miah@netcis.com

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Re: 2.4.9 UDP broke?

[J Sloan]

Jeremiah Johnson wrote:

> Well considering the only thing I changed in my configuration is the
> kernel, I think its a problem there.  Went from 2.4.3-ac? to 2.4.9.
> System is RedHat 7.1.. Maybe it has something to do with RedHats
> inclusion of a broken compiler

Please don't trot out that tired old FUD again -
it just makes you look really silly...

I'm running 2.4.9 and 2.4.10-pre on a number
of Red Hat 7.1 boxes and nfs works fine, even
rwhod across a vpn is working fine.

cu

jjs

Re: 2.4.9 UDP broke?

[Matthias Andree]

On Thu, 30 Aug 2001, Jeremiah Johnson wrote:

>   I am having very strange problems with 2.4.9 and UDP.  Basically,
>   anything using UDP wont work.  Anything using TCP/ICMP works fine.

NTP (which relies on UDP traffic to port #123) works fine here with
2.4.9. Check your packet filter setup, please.

Re: Re[2]: 2.4.9 UDP broke?

[volodya]

On Fri, 31 Aug 2001, Jeremiah Johnson wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: MD5
> 
> Hello Steve,
> 
> Thursday, August 30, 2001, 10:50:08 PM, you wrote:
> 
> SK>  --- Jeremiah Johnson <miah@netcis.com> wrote: >
> SK> -----BEGIN PGP SIGNED MESSAGE-----
> >> Hash: MD5
> >>
> >> Hello linux-kernel,
> >>
> >>   I am having very strange problems with 2.4.9 and
> >> UDP.  Basically,
> >>   anything using UDP wont work.  Anything using
> >> TCP/ICMP works fine.
> 
> SK> May be it is not the kernel, I dont know but in my box
> SK> it works as normal
> 
> SK> (I can use speakfreely ; it uses UDP and otehr program
> SK> too)
> 
> Well considering the only thing I changed in my configuration is the
> kernel, I think its a problem there.  Went from 2.4.3-ac? to 2.4.9.
> System is RedHat 7.1.. Maybe it has something to do with RedHats
> inclusion of a broken compiler, I'll have to check on that when I get
> into the office.

I had a very similar experience. In my case it turned out that for some
reason no UDP packets above 5524 would come through (try pinging with
larger than default packet sizes). The solution was to restrict NFS to
5000 (actually 4096) size packets. I have not been able to figure out the
cause of this yet. (and yes, tcpdump was able to see them fine).

                            Vladimir Dergachev

> 
> I do have 2.4.9 working fine on other systems too.  Strange.
> - --
> Best regards,
>  Jeremiah                            mailto:miah@netcis.com
> 
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> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
> 

Re[4]: 2.4.9 UDP broke?

[Jeremiah Johnson]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: MD5

Hello volodya,

I found the answer to the problem today.  It has to do with a bug in
one of these options:

CONFIG_TULIP_MWI
CONFIG_TULIP_MMIO

Since the system is a older dual p100 I didn't really want to sit
through the 2 hours of compilation to "test" which one it is.  I'm
willing to bet its CONFIG_TULIP_MWI though since its still marked as
experimental.  With both of these options disabled 2.4.9 works fine on
that system though as it does on my other boxes.  Whoever maintains
the code for those two config options might want to do some testing.
I can provide more information about the system if needed.

Sunday, September 02, 2001, 7:25:44 PM, you wrote:

vmc> I had a very similar experience. In my case it turned out that for some
vmc> reason no UDP packets above 5524 would come through (try pinging with
vmc> larger than default packet sizes). The solution was to restrict NFS to
vmc> 5000 (actually 4096) size packets. I have not been able to figure out the
vmc> cause of this yet. (and yes, tcpdump was able to see them fine).

vmc>                             Vladimir Dergachev


- --
Best regards,
 Jeremiah                            mailto:miah@netcis.com

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Re: Re[4]: 2.4.9 UDP broke?

[volodya]

On Tue, 4 Sep 2001, Jeremiah Johnson wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: MD5
> 
> Hello volodya,
> 
> I found the answer to the problem today.  It has to do with a bug in
> one of these options:
> 
> CONFIG_TULIP_MWI
> CONFIG_TULIP_MMIO

Hmm, interesting. I'll check the latest version of tulip (as well as the
one on Donald Becker's website). Did you try them out already ?

                          Vladimir Dergachev

> 
> Since the system is a older dual p100 I didn't really want to sit
> through the 2 hours of compilation to "test" which one it is.  I'm
> willing to bet its CONFIG_TULIP_MWI though since its still marked as
> experimental.  With both of these options disabled 2.4.9 works fine on
> that system though as it does on my other boxes.  Whoever maintains
> the code for those two config options might want to do some testing.
> I can provide more information about the system if needed.
> 
> Sunday, September 02, 2001, 7:25:44 PM, you wrote:
> 
> vmc> I had a very similar experience. In my case it turned out that for some
> vmc> reason no UDP packets above 5524 would come through (try pinging with
> vmc> larger than default packet sizes). The solution was to restrict NFS to
> vmc> 5000 (actually 4096) size packets. I have not been able to figure out the
> vmc> cause of this yet. (and yes, tcpdump was able to see them fine).
> 
> vmc>                             Vladimir Dergachev
> 
> 
> - --
> Best regards,
>  Jeremiah                            mailto:miah@netcis.com
> 
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Re: Re[4]: 2.4.9 UDP broke?

[Jeremiah Johnson]

Ironically, the latest "stable" version of the tulip driver on:
http://sourceforge.net/projects/tulip is older than whats in 2.4.9.  I'm
willing to bet the latest "devel" is older too (they're dated June
15(devel), and February 19(stable).

-miah

On Tue, 4 Sep 2001 volodya@mindspring.com wrote:
> 
> 
> On Tue, 4 Sep 2001, Jeremiah Johnson wrote:
> 
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: MD5
> > 
> > Hello volodya,
> > 
> > I found the answer to the problem today.  It has to do with a bug in
> > one of these options:
> > 
> > CONFIG_TULIP_MWI
> > CONFIG_TULIP_MMIO
> 
> Hmm, interesting. I'll check the latest version of tulip (as well as the
> one on Donald Becker's website). Did you try them out already ?
> 
>                           Vladimir Dergachev

Re: Re[4]: 2.4.9 UDP broke?

[volodya]

On Tue, 4 Sep 2001, Jeremiah Johnson wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: MD5
> 
> Hello volodya,
> 
> I found the answer to the problem today.  It has to do with a bug in
> one of these options:
> 
> CONFIG_TULIP_MWI
> CONFIG_TULIP_MMIO
> 

You are absolutely correct - once I enabled both of these it works
great. My guess is that whoever tested the patches was concentrated on the
case when options were enabled.

                               Vladimir Dergachev

> Since the system is a older dual p100 I didn't really want to sit
> through the 2 hours of compilation to "test" which one it is.  I'm
> willing to bet its CONFIG_TULIP_MWI though since its still marked as
> experimental.  With both of these options disabled 2.4.9 works fine on
> that system though as it does on my other boxes.  Whoever maintains
> the code for those two config options might want to do some testing.
> I can provide more information about the system if needed.
> 
> Sunday, September 02, 2001, 7:25:44 PM, you wrote:
> 
> vmc> I had a very similar experience. In my case it turned out that for some
> vmc> reason no UDP packets above 5524 would not come through (try pinging with
> vmc> larger than default packet sizes). The solution was to restrict NFS to
> vmc> 5000 (actually 4096) size packets. I have not been able to figure out the
> vmc> cause of this yet. (and yes, tcpdump was able to see them fine).
> 
> vmc>                             Vladimir Dergachev
> 
> 
> - --
> Best regards,
>  Jeremiah                            mailto:miah@netcis.com
> 
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Re: Re[6]: 2.4.9 UDP broke?

[volodya]

On Fri, 7 Sep 2001, Jeremiah Johnson wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: MD5
> 
> Hello volodya,
> 
> If I enable both of these options though, UDP totally breaks for me.
> So its definitely something in there.  Maybe I'll get some time and
> test to see which option is actually doing the breaking.

After some testing: 2.4.6 and 2.4.8 require both of these options be
disabled. 2.4.9 wants them enabled. 

Furthemore: after I turned on these option on the only 2.4.9 kernel I
currently have I was able to ping all machines on the network (and they
were able to ping each other). However, before (when options were turned
off) none of the machines on the network could ping each other with
packets of size 6000, though I could see them with tcpdump. 

<whine> 
tulip worked so great earlier, why mess with it ?
</whine>

                         Vladimir Dergachev

> 
> Wednesday, September 05, 2001, 1:28:39 PM, you wrote:
> 
> vmc> On Tue, 4 Sep 2001, Jeremiah Johnson wrote:
> 
> >> -----BEGIN PGP SIGNED MESSAGE-----
> >> Hash: MD5
> >>
> >> Hello volodya,
> >>
> >> I found the answer to the problem today.  It has to do with a bug in
> >> one of these options:
> >>
> >> CONFIG_TULIP_MWI
> >> CONFIG_TULIP_MMIO
> >>
> 
> vmc> You are absolutely correct - once I enabled both of these it works
> vmc> great. My guess is that whoever tested the patches was concentrated on the
> vmc> case when options were enabled.
> 
> vmc>                                Vladimir Dergachev
> 
> - --
> Best regards,
>  Jeremiah                            mailto:miah@netcis.com
> 
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> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
> 

Re[6]: 2.4.9 UDP broke?

[Jeremiah Johnson]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: MD5

Hello volodya,

If I enable both of these options though, UDP totally breaks for me.
So its definitely something in there.  Maybe I'll get some time and
test to see which option is actually doing the breaking.

Wednesday, September 05, 2001, 1:28:39 PM, you wrote:

vmc> On Tue, 4 Sep 2001, Jeremiah Johnson wrote:

>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: MD5
>>
>> Hello volodya,
>>
>> I found the answer to the problem today.  It has to do with a bug in
>> one of these options:
>>
>> CONFIG_TULIP_MWI
>> CONFIG_TULIP_MMIO
>>

vmc> You are absolutely correct - once I enabled both of these it works
vmc> great. My guess is that whoever tested the patches was concentrated on the
vmc> case when options were enabled.

vmc>                                Vladimir Dergachev

- --
Best regards,
 Jeremiah                            mailto:miah@netcis.com

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