On Tue, Nov 06, 2012 at 03:02:21PM -0600, Nathan Zimmer wrote: > On systems with 4096 cores attemping to read /proc/sched_debug fails. > We are trying to push all the data into a single kmalloc buffer. > The issue is on these very large machines all the data will not fit in 4mb. > > A better solution is to not us the single_open mechanism but to provide > our own seq_operations and treat each cpu as an individual record.
Good timing. This looks like it would solve the problem I just reported here: https://lkml.org/lkml/2012/11/6/390 That happens even on an 8-way, so it's not just niche machines that have this problems. Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
