Hello, On Wed, Dec 09, 2015 at 06:23:15PM +0200, Nikolay Borisov wrote: > I think we are seeing this at least daily on at least 1 server (we have > multiple servers like that). So adding printk's would likely be the way > to go, anything in particular you might be interested in knowing? I see > RCU stuff around so might be tricky race condition.
Printing out the workqueue's pointer, name, pwq's pointer, the node being installed for and the installed pointer should give us enough clues. There's RCU involved but the pointers shouldn't be becoming NULLs unless we're installing NULL ptrs. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
