On 6/20/2018 9:53 AM, Johannes Berg wrote:
On Wed, 2018-06-20 at 09:51 +0200, Arend van Spriel wrote:
On 6/19/2018 5:39 PM, Denis Kenzior wrote:
On pre-emption enabled kernels the following oops was being seen due
to missing local_bh_disable/local_bh_enable calls. mac80211 assumes
that pre-emption is disabled in the data path.
No sure if "assumes" is the right term here. It seems like it is
required and there is probably a good reason for that. Would be nice to
know what that reason is.
It's using per-CPU data.
Hence the smp_processor_id() call which Denis mentioned in the bug report?
Regards,
Arend
