> On Aug 5, 2015, at 12:24, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > > On Wed, Aug 05, 2015 at 11:09:22AM -0500, Christoph Lameter wrote: >>> [1.] One line summary of the problem: >>> 4.1.4 -- Kernel Panic on shutdown >> >> This is a kfree of an object that was not allocated via the slab >> allocators or was already freed. If you boot with the kernel command line >> argument "slub_debug" then you could get some more information. Could also >> be that memory was somehow corrupted. >> >> The backtrace shows that this is a call occurring in the >> scheduler. >> >> CCing scheduler developers. > > I'll go have a look; but the obvious question is, what's the last known > good kernel? > >> >> 4.0.x series still work for me. I had wondered about a memory fault (on the idea that a small shift in memory position might hit the fault), but memtest86 turned up nothing. I will try re-compiling to use the SLAB allocator and see if that helps. .....Ron -- Ron Murray <rjmx@xxxxxxxx> PGP Fingerprint: 0ED0 C1D1 615C FCCE 7424 9B27 31D8 AED5 AF6D 0D4A -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href