Messages in this thread | | | Date | Wed, 1 Feb 2017 10:37:39 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk |
| |
On Wed, Feb 01, 2017 at 10:06:25AM +0100, Jan Kara wrote: > Clearly scheduler code (update_load_avg) calls WARN_ON from scheduler while > holding rq_lock which has been always forbidden. Sergey and Petr were doing > some work to prevent similar deadlocks but I'm not sure how far they > went...
Its not forbidden, just can result in the occasional deadlock, meh.
In any case, there's a patch in tip fixing that warn trigger.
| |