[lwip-users] Nios datacashe problem

[Etienne Lanoy]

Do you have tested the SP2 of Quartus Software ?

In the errata doc provided by Altera, it seems this bug is now corrected
?
I'm compiling a new version of my software with this version of quartus ...

We will see ...

Thank you
Etienne

Jan Ulvesten a écrit:
> The problem is related to an unlucky sequence of machine instructions actually found in pbuf_header's code (!).  Removing the data cache or changing the size (diff. from 32 bytes) will help.  ALtera does oalso provide a fix.
>
> But; the Altera fix didn't help me for some reason which I don't know. I did remove the cache entirely. If you are able to make thins work after installing the Altera fix, please inform me.
>
>
> Jan Ulvesten
> Senior Software Engineer
> SICOM  AS
>
>
> -----Original Message-----
> From: Etienne Lanoy [mailto:address@hidden] 
> Sent: 7. april 2006 08:48
> To: Mailing list for lwIP users
> Subject: SPAM? [lwip-users] Pbuf assertion failure
>
> Yes I'm using Altera Nios but I have search the patch for the Data cache 
> bug but
> I've not found it.
>
> I'm very desagree because in all my software I do the same action 
> tcp_write and after
> tcp_output. There is no problem. Maybe something is broken in my 
> software but
> I haven't any idea what can produce this assertion failure.
>
> I thank you a lot for your help.
>
> Best regards,
> Etienne
>
> Jan Ulvesten a écrit:
>
> > Are you running Altera/Nios II?
> >
> > If yes, check out Altera website and/or niosforum.com. There is a
> > problem with the Nios II data cache. A patch is available (to the IDE). 
> >
> > Jan Ulvesten
> > Senior Software Engineer
> > SICOM  AS
> > Tel   +47 72 89 56 55
> > Fax  +47 72 89 56 51
> > Mob +47 416 62 033
> >
> > -----Original Message-----
> > From: Etienne Lanoy [mailto:address@hidden] 
> > Sent: 6. april 2006 14:21
> > To: address@hidden
> > Subject: SPAM? [lwip-users] Pbuf assertion failure
> >
> > Hello,
> >
> > I've a problem with an assertion in the file pbuf.c :
> > In the function pbuf_free, the assertion
> >
> > LWIP_ASSERT("pbuf_free: sane flags",
> >    p->flags == PBUF_FLAG_RAM || p->flags == PBUF_FLAG_ROM ||
> >    p->flags == PBUF_FLAG_REF || p->flags == PBUF_FLAG_POOL);
> >
> > occur.
> >
> > Before that I have done a tcp_write and a tcp_output
> >
> > I've never see it before. Do you know what's happend ?
> >
> > I use it all arround my software and in my new piece of code I'm writing
> >
> > fail this assertion...
> > I don't understand.
> >
> > I thank you a lot.
> >
> > Etienne
> >
> >   
>
>
>
>
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