Re: [ECOS] eCos + goAhead probelm

[sebastien Couret <sebastien.couret@elios-informatique.fr>]

Hello All,
In the past , (With GoAhead Webserver v 2.1.7) , I ran into the same kind of 
problem with eCos.
After investigation this was caused by function "int socketSelect(int sid, 
int timeout)" in file Sockgen.c (the one /* not WIN || CE || NW */ ) which 
makes calls to balloc.
Using the another "socketSelect" (the one #if (defined (WIN) || defined (CE) 
) solved the memory leak/overflow. May be you should try this before 
modifying balloc.c .

Note : Now, I use a 64K balloc buffer without any problems.

Hope this helps. Have a nice day.  

On Tuesday 17 August 2004 06:41, Hao wrote:
> Recently,  I modify balloc() in balloc.c of goAhead.
> I try to increase 64bytes at the line of  malloc() .  And the problem of
> out of memory disappeared.
> So , I think it's not the probelm caused by eCos.
> I think it's caused by goAhead somewhere that call balloc() and use
> wrong size.
>
> Now, in my target, goAhead still unstable just like you say. Then I use
> very simple web page instead of default web page(home.asp).
> It still unstable, but not crashed.
> But it can work very fine when I use 'lynx' instead of other browser(IE,
> mozilla..).
> I don't know what's the difference of behavior between lynx and other
> browser (IE,mozilla).
>
> Hope this information can help you something.
>
> Hao
>
> >Hello Hao!
> >
> >I've got the same problem!
> >The target has eCos 2.0, and I use GoAhead 2.1.8 as well.
> >
> >I'm using an improved kernel, with:
> >CYGPKG_NET_MEM_USAGE set to 512K (instead of 256K)
> >where NET_MEMPOOL_SIZE is 5/8 of CYGPKG_NET_MEM_USAGE (instead of 1/4)
> >CYGPKG_NET_MAX_SOCKETS set to 192 (instead of 16)
> >
> >I increased 'bufsize' for bopen() to 192K, 256K, and more (instead of
> > 60K). I also tried to create a separate thread with a stack size of 80K
> > (and later 120K) and put the original main code inside ...
> >
> >... But in all cases the web server was unstable, and crashed after some
> >play...
> >
> > Any suggestion?
> >
> >b.t.w. When I load the default GoAhead web site (home.asp),
> >it doesn't handle with the left side menu applet (classes/treeapp.jar) -
> >it just leaves it black (no error message!)
> >The same applet works fine on Linux.
> >
> >Why does it behave like that?
> >Have you got this problem as well?
> >
> >Thanks in advance,
> >-- Amir
> >
> >---------------------------------------------------------------
> >Hao wrote:
> >
> >I build a target system that use eCos + goAhead web server.
> >When I run goAhead , and try to open a page from browser.
> >My target is failed at malloc() reutrn NULL.
> >But the ping function still work.
> >I set CYGNUM_MEMALLOC_FALLBACK_MALLOC_POOL_SIZE from 16384 to 1638400.
> >But, it doesn't help.
> >Then I try to use 'Simple variable block implementation' instead of
> >'Doug Lea's malloc implementatioin'.
> >It still don't work.
> >
> >My target system already pass all eCos tests include memalloc. And the
> >on board memory is
> >16MB. I think it's enough for eCos + goAhead.
> >
> >It seems goAhead eat all of memory. why ?
> >Does anybody has same problem as I ?
> >I use goAhead 2.18 + eCos (2004/06/24 got from CVS).
> >(I already try goAhead 2.14 ~ 2.18. All that have same problem)
> >
> >Regards
> >Hao

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