ucc_geth DPRAM alloc error, 2.6.22-rc3

Li Yang-r58472 LeoLi at freescale.com
Thu Jun 14 22:48:11 EST 2007


You are right.  The proposed change is just an unwise suggestion.

I later overhauled and reworked the aligned allocation of rheap to
prevent it from generating internal fragment.  Patch coming soon.

- Leo

> -----Original Message-----
> From: Chuck Meade [mailto:chuck at ThePTRGroup.com]
> Sent: Thursday, June 14, 2007 8:19 PM
> To: joakim.tjernlund at transmode.se
> Cc: Li Yang-r58472; linuxppc-dev Development; Liu Dave-r63238
> Subject: Re: ucc_geth DPRAM alloc error, 2.6.22-rc3
> 
> This output looks buggy:
> 
{snip}

> 
> These buffer overlaps probably have a lot to do with your pings
stopping.
> I would say first order of business would be to investigate what could
> be generating all these overlapped allocations.  Some of these make me
think
> the allocator code could be racy, like allocations are not aware of
other
> "recent" or ongoing allocations.  But in any case the allocator is
broken.
> 
> Chuck




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