Oops: 17 SMP ARM (v3.16-rc2)
From: Nathan Lynch <hidden>
Date: 2014-06-30 13:00:46
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On 06/30/2014 07:30 AM, Fredrik Noring wrote:
quoted
On Fri, Jun 27, 2014 at 04:16:57PM +0000, Fredrik Noring wrote:quoted
Please find below a trace that appeared once with 3.16-rc2. Perhaps it is of some interest?It's not that serious... I know that the FEC ethernet driver is horrendously racy (I have had a patch set for about the last six months which fixes some of its problems) but as I've had a lot of patches to deal with, and it's been pushed to the back of the queue... The races don't lead to data corruption though, merely timeouts and some lost packets.
It seems to be a compiler issue, where (GCC) 4.8.2 does not produce a
properly
working kernel. Happily, (Fedora 2013.11.24-2.fc19) 4.8.1 appears to
do a lot
better. No crashes so far with v3.16-rc2!
Did you narrow it down to a particular GCC bug? The symptoms you reported remind me of: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854 Sadly, unpatched GCC 4.8.1 and 4.8.2 are unsuitable for building ARM kernels.