malloc/free from ISR

[Brett Swimley]

I definitely agree, but for now, can I legally get away with this?

Regards,

Brett

> -----Original Message-----
> From: Eric Norum [mailto:eric.norum at usask.ca]
> Sent: Wednesday, November 13, 2002 9:40 AM
> To: brett.swimley at aedinc.net
> Cc: 'RTEMS'
> Subject: Re: malloc/free from ISR
> 
> 
> 
> On Wednesday, November 13, 2002, at 10:19  AM, Brett Swimley wrote:
> 
> > Hi All,
> >
> > Is it legal to call malloc/free from an ISR?  I'm got a 
> device driver 
> > that
> > does this and having a bit of problem.  Don't know if this is the 
> > issue but
> > thought I would ask the question.
> >
> 
> You're probably better off rewriting the device driver so 
> that the bulk 
> of the ISR code runs in the context of an interrupt handler 
> task rather 
> than in the interrupt handler itself.  This is the way 
> network drivers 
> work, for example.  Someday terminal drivers will work this way, too.
> 
> -- 
> Eric Norum <eric.norum at usask.ca>
> Department of Electrical Engineering
> University of Saskatchewan
> Saskatoon, Canada.
> Phone: (306) 966-5394   FAX:   (306) 966-5407
>