On Mon, 16 Jun 2014, Sasha Levin wrote: > It took some time to hit something here, but I think that the following > is related:
This related thing looks like someone did a random memset. The SLUB diagnostic show the object, redzone and padding were overwritten with zeros. > [ 494.710068] > ============================================================================= > [ 494.710068] BUG page->ptl (Not tainted): Redzone overwritten > [ 494.710068] > ----------------------------------------------------------------------------- > [ 494.710068] > [ 494.710068] INFO: 0xffff8804e4730e58-0xffff8804e4730e5f. First byte 0x0 > instead of 0xbb > [ 494.710068] INFO: Slab 0xffffea001391cc00 objects=40 used=40 fp=0x > (null) flags=0x56fffff80004080 > [ 494.710068] INFO: Object 0xffff8804e4730e10 @offset=3600 fp=0x > (null) > [ 494.710068] > [ 494.710068] Bytes b4 ffff8804e4730e00: 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 ................ > [ 494.710068] Object ffff8804e4730e10: 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 ................ > [ 494.710068] Object ffff8804e4730e20: 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 ................ > [ 494.710068] Object ffff8804e4730e30: 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 ................ > [ 494.710068] Object ffff8804e4730e40: 00 00 00 00 00 00 00 00 00 00 00 00 > 00 00 00 00 ................ > [ 494.710068] Object ffff8804e4730e50: 00 00 00 00 00 00 00 00 > ........ > [ 494.710068] Redzone ffff8804e4730e58: 00 00 00 00 00 00 00 00 > ........ > [ 494.710068] Padding ffff8804e4730f98: 00 00 00 00 00 00 00 00 > ........ -- 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/
