On Fri, Apr 22, 2016 at 03:13:58AM +0500, Марк Коренберг wrote: > Linux kernel commit 8a9ebe717a133ba7bc90b06047f43cc6b8bcb8b3 > > attrib->max_unmap_lba_count = (q->limits.max_discard_sectors << 9) > > Since max_discard_sectors is 32-bit, there may be integer overflow, > making wrong max_unmap_lba_count. > > For example, LVM Thin provisioning reports that it have 16 GB maximal > discard block. > > Exactly the same bug in DRBD9, I have already reported. Please report this to the mailing list for the subsystem, stable@ doesn't care about stuff like this until it is resolved. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html