[dm-devel] Re: 2.6.24 Kernel Soft Lock Up with heavy I/O in dm-crypt

[Herbert Xu <herbert gondor apana org au>]

On Thu, Feb 28, 2008 at 11:20:48PM -0800, Andrew Morton wrote:
>
> Now, I'm assuming that it's just unreasonable for a machine to spend a full
> 11 seconds crunching away on crypto in that code path.  Maybe it _is_
> reasonable, and all we need to do is to poke a cond_resched() in there
> somewhere.  Herbert, any thoughts?  What's the speed of that code?

It encryps 512 bytes each time so it should definitely be pretty
quick.  Perhaps the caller is disabling interrupts or something?

Cheers,
-- 
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