Sockets on 64 bit Linux

Sockets on 64 bit Linux

[Alain Mouette]

Hi,

I am having a problem with dosemu (svn2080 just downloaded) on a Ubuntu 
64 bit machine. (eveything else is working perfectly)

I have an unusual and ramdom delay to receive packets, verying from a 
few miliseconds to a few seconds.

I checked with wireshark and the packet is there on tap0 with 
sub-milisecon response delay. I tried many different bridge 
configurations, including with eth0 down. Just ping is representative as 
a test, but it happens with other protocols too, as expected.

Please tell me if there is a way to make it work... I dont't want to 
reinstall everything because I cannot use one essencial item in 64 bits...

Thanks, anyone,

Alain

Re: Sockets on 64 bit Linux

[Stas Sergeev]

14.12.2012 22:36, Alain Mouette пишет:
> Hi,
>
> I am having a problem with dosemu (svn2080 just downloaded)
dosemu isnt using svn for quite some time, so
get it from git instead.

> I have an unusual and ramdom delay to receive packets, verying from a 
> few miliseconds to a few seconds.
I have no idea whether or not this will help you, but
one guy is saying he had solved the similar problem
with
ethtool -K eth0 rx off tx off
which disables the tcp offload engine delays, and then
bridging to tap0 started to work fine for him.
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Re: Sockets on 64 bit Linux

[Alain Mouette]

Ok, nice to know, but that git is not github, where is it? Please send 
me a link or some information

And BTW, it seems that www.dosemu.org is offline...

Alain

Em 14-12-2012 17:42, Stas Sergeev escreveu:
> 14.12.2012 22:36, Alain Mouette пишет:
>> Hi,
>>
>> I am having a problem with dosemu (svn2080 just downloaded)
> dosemu isnt using svn for quite some time, so
> get it from git instead.
>
>> I have an unusual and ramdom delay to receive packets, verying from a
>> few miliseconds to a few seconds.
> I have no idea whether or not this will help you, but
> one guy is saying he had solved the similar problem
> with
> ethtool -K eth0 rx off tx off
> which disables the tcp offload engine delays, and then
> bridging to tap0 started to work fine for him.
>
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Re: Sockets on 64 bit Linux

[solarflow99]

works fine for me.  BTW, if you click "code" on the sourceforge.net
page, it shows this:  git clone git://git.code.sf.net/p/dosemu/code
dosemu-code


On Fri, Dec 14, 2012 at 4:17 PM, Alain Mouette <alainm@pobox.com> wrote:
> Ok, nice to know, but that git is not github, where is it? Please send me a
> link or some information
>
> And BTW, it seems that www.dosemu.org is offline...
>
> Alain
>
> Em 14-12-2012 17:42, Stas Sergeev escreveu:
>>
>> 14.12.2012 22:36, Alain Mouette пишет:
>>>
>>> Hi,
>>>
>>> I am having a problem with dosemu (svn2080 just downloaded)
>>
>> dosemu isnt using svn for quite some time, so
>> get it from git instead.
>>
>>> I have an unusual and ramdom delay to receive packets, verying from a
>>> few miliseconds to a few seconds.
>>
>> I have no idea whether or not this will help you, but
>> one guy is saying he had solved the similar problem
>> with
>> ethtool -K eth0 rx off tx off
>> which disables the tcp offload engine delays, and then
>> bridging to tap0 started to work fine for him.
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-msdos" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
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Re: Sockets on 64 bit Linux

[Alain Mouette]

thanks, as it happens, many sites were not responding at the time. 1/2 
an hour later everything came back :)

I downloaded from git, but I having some problems:

1) I had some ^M erros messages, solved with
dos2unix -f configure
dos2unix default-configure
dos2unic getversion
(I had to force to convet congigure, it was recognized as binary...)

2) now, running ./configure, I am getting an error about clang
checking for clang...... no

=> I installed: clang and libclang-dev
=> I changed llvm-3.0 to llvm-3.1
nothing made any difference
I had already compiled the svn version of dosemu on the same machine
there are no such messages related to dosemu on google

Using Ubuntu 12.10 amd_64 (which is the same as x86_64)

please help
Alain

Em 14-12-2012 19:25, solarflow99 escreveu:
> works fine for me.  BTW, if you click "code" on the sourceforge.net
> page, it shows this:  git clone git://git.code.sf.net/p/dosemu/code
> dosemu-code
>
>
> On Fri, Dec 14, 2012 at 4:17 PM, Alain Mouette<alainm@pobox.com>  wrote:
>> Ok, nice to know, but that git is not github, where is it? Please send me a
>> link or some information
>>
>> And BTW, it seems that www.dosemu.org is offline...
>>
>> Alain
>>
>> Em 14-12-2012 17:42, Stas Sergeev escreveu:
>>>
>>> 14.12.2012 22:36, Alain Mouette пишет:
>>>>
>>>> Hi,
>>>>
>>>> I am having a problem with dosemu (svn2080 just downloaded)
>>>
>>> dosemu isnt using svn for quite some time, so
>>> get it from git instead.
>>>
>>>> I have an unusual and ramdom delay to receive packets, verying from a
>>>> few miliseconds to a few seconds.
>>>
>>> I have no idea whether or not this will help you, but
>>> one guy is saying he had solved the similar problem
>>> with
>>> ethtool -K eth0 rx off tx off
>>> which disables the tcp offload engine delays, and then
>>> bridging to tap0 started to work fine for him.
>>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-msdos" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
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Re: Sockets on 64 bit Linux

[Stas Sergeev]

15.12.2012 03:12, Alain Mouette пишет:
> thanks, as it happens, many sites were not responding at the time. 1/2 
> an hour later everything came back :)
You've got problems.

> I downloaded from git, but I having some problems:
>
> 1) I had some ^M erros messages, solved with
> dos2unix -f configure
> dos2unix default-configure
> dos2unic getversion
> (I had to force to convet congigure, it was recognized as binary...)
You've got real problems...
I've just checked and there are no ^M in configure, and
"dos2unix -f" doesn't change it.

> 2) now, running ./configure, I am getting an error about clang
> checking for clang...... no
That's not an error!

> => I installed: clang and libclang-dev
> => I changed llvm-3.0 to llvm-3.1
No need to.

> nothing made any difference
> I had already compiled the svn version of dosemu on the same machine
> there are no such messages related to dosemu on google
You've got problems. Viruses?
Oh, but that's not windows... :)
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Re: Sockets on 64 bit Linux

[Alain Mouette]

Thanks Stas for your patience...

so if thet was not an error but a good thing, i suggest that the message 
should be changed... it may help others in the future. (I know 
next-to-nothing about seting up automake, but it is just a suggestion)

So the prblem is in the compilation itself: I get an error in the first 
file (removing all the make messages):
-------------
gcc -c -MP -MMD -I../../src/include -I../../src/plugin/include  -Wall 
-Wstrict-prototypes -Wmissing-declarations -Wnested-externs 
-fno-strict-aliasing -mtune=a -pipe -O2 -fomit-frame-pointer -o 
tools86.o tools86.c
) for -mtune= switch: bad value (auto
-------------
And that looks wrong! According do man gcc, "-mtune=cpu-type" and auto 
or a is not an option...

Has gcc changed, or is there some regresion in dosemu?
I have gcc 4.7.2 from ubuntu 12.10 64 bits

BTW, direct downolad in raw mode worked fine :)

Thanks,
Alain


Em 17-12-2012 18:56, Stas Sergeev escreveu:
> 17.12.2012 20:28, Alain Mouette пишет:
>>
>>>> (I had to force to convet congigure, it was recognized as binary...)
>>> You've got real problems...
>>> I've just checked and there are no ^M in configure, and
>>> "dos2unix -f" doesn't change it.
>>
>> IIrC git has some embedded function that may be doing that, it is
>> suposed to eliminate ^M when cloning to linux...
> Great, then get it from here:
> http://sourceforge.net/p/dosemu/code/ci/3633a28059a495f563e549e9e0d135e0190e31ce/tree/configure?format=raw
>
> and see if there are ^M or not.
>
>>
>>>> 2) now, running ./configure, I am getting an error about clang
>>>> checking for clang...... no
>>> That's not an error!
>>
>> Ok, but please, what is the error? requiring clang, not detecting it,
>> or something else?
> I clarified the massage. Now it will write
> ---
> checking for gcc actually being clang...... no
> ---
> which will hopefully make you feel better. :)
>
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Re: Sockets on 64 bit Linux

[Alain Mouette]

Aha! compiling now....

I just had to add a git option to not-change the LFs:

git -c core.autocrlf=false clone http://git.code.sf.net/p/dosemu/code 
dosemu-code

now it compiles without any glitch...

BUT, SADDLY the socket problem remains: I have an unusual and random 
delay to receive packets, verying from a few miliseconds to a few seconds.

Does anyone have any other idea, please... or will I have to reinstall 
32bits?


Thanks for your help so far,
Alain

Em 17-12-2012 22:42, Alain Mouette escreveu:
> Thanks Stas for your patience...
>
> so if thet was not an error but a good thing, i suggest that the message
> should be changed... it may help others in the future. (I know
> next-to-nothing about seting up automake, but it is just a suggestion)
>
> So the prblem is in the compilation itself: I get an error in the first
> file (removing all the make messages):
> -------------
> gcc -c -MP -MMD -I../../src/include -I../../src/plugin/include -Wall
> -Wstrict-prototypes -Wmissing-declarations -Wnested-externs
> -fno-strict-aliasing -mtune=a -pipe -O2 -fomit-frame-pointer -o
> tools86.o tools86.c
> ) for -mtune= switch: bad value (auto
> -------------
> And that looks wrong! According do man gcc, "-mtune=cpu-type" and auto
> or a is not an option...
>
> Has gcc changed, or is there some regresion in dosemu?
> I have gcc 4.7.2 from ubuntu 12.10 64 bits
>
> BTW, direct downolad in raw mode worked fine :)
>
> Thanks,
> Alain