Okay, so i was 0, so running UP probably isn't going to help. r7 is
also spec_priv->rfs_chan_spec_scan.
So, I think the question is... how is this NULL - and has it always
been NULL...
The problem appears to be that ath_cmn_process_fft() isn't called that
often. When it is, it crashes in ath_cmn_is_fft_buf_full() because
spec_priv->rfs_chan_spec_scan is NULL when ATH9K_DEBUGFS=n. :-(
I'm running with ATH9K_DEBUGFS=y now. If it goes a couple of days
without crashing, I'll gin up a patch.
A similar patch was applied to ath-next branch:
https://patchwork.kernel.org/patch/9431163/.
--
Miaoqing
