Re: Lock-up on PPC64

From: Benjamin Herrenschmidt
Date: Tue Jan 06 2009 - 07:06:17 EST


On Mon, 2009-01-05 at 23:28 +1100, Michael Ellerman wrote:
> I'm confused. Which code never exercises which path, and so what
> deserves a better look?

Well, the thing is with the fix that went into 2.6.30, some error path
will never bit hit, or pretty much.

Without the fix, what can happen is that a syscall incorrectly is
interpreted as returning an error, thus triggering rarely used error
path in Mono. However, that shouldn't lockup the whole machine :-)

So It's still worth investigating what's happening when taking the fix
out, as we may have another bug somewhere lurking.

Cheers,
Ben.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/