On 21/05/2013 13:42, Bart Van Assche wrote:
On 05/21/13 11:40, Or Gerlitz wrote:
2. is possible in the Linux kernel for one hard irq callback to flash on
CPU X while another hard irq callback is running on the same CPU?

I think that from kernel 2.6.35 on MSI IRQs are no longer nested. See also http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=753649dbc49345a73a2454c770a3f2d54d11aec6 or http://lwn.net/Articles/380931/

thanks, so suppose we agree on that, still the patch makes sense as the race is there, but does the patch has to change?

Or.
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