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RE: [lwip-devel] RE: Crash Bug

From: Julian Gardner [RSD]
Subject: RE: [lwip-devel] RE: Crash Bug
Date: Wed, 6 Jun 2007 19:57:30 +0100

no my ISR just posts to a semaphore and i have task which does the pbuf_alloc 
and post to the stack.

Julian Gardner

-----Original Message-----
From: address@hidden on behalf of Kieran Mansley
Sent: Wed 06/06/2007 19:56
To: lwip-devel
Subject: RE: [lwip-devel] RE: Crash Bug
On Wed, 2007-06-06 at 19:22 +0100, Julian Gardner [RSD] wrote:
> Bug sort of fixed
> I have managed to stop the crash by wrapping all the exposed pbuf_???? with a 
> single semaphore.
> Now is there a switch in lwipopts i should be setting to stop this.

Not that I know of - it's up to the port to guarantee this sort of thing
at the moment.  We'd clearly like to make it easier for ports to do this
as it would save time and effort for everyone, and cut 90% of the bugs
reported to the mailing lists too.  At the very least it should be

I'm glad you've found the problem anyway.  I presume your ISR must be
allocating pbufs then?


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