On Sat, Aug 03, 2019 at 12:26:56PM +0000, George Fedorov wrote: > Hi, > > > I was directed here by the page at > https://www.gnu.org/software/parted/bugs.shtml ; is there any bugreport > tracker where one can file a bug instead ? > > > Anyway, here's the problem ( manifested in parted 3.2 coming with Ubuntu > 18.04 and checked vs. a manual build of the sources from > http://ftp.gnu.org/gnu/parted/parted-3.2.tar.xz ):
The 3.2 tar is *really* old at this point and should not really be used. [snip] > As it turns out, the root of all evil comes from here : > > > ===== > > # cat /sys/block/sdi/queue/optimal_io_size > 33553920 > ===== > > > So parted is not to blame, but the system. But from the user's point of view, > it is quite hard to figure this out. And certainly the user deserves to know > the actual values that parted considers to be of best performance -- I mean, > pa->offset and pa->grain_size from parted.c::print_partition_alignment() > shall probably be exposed in some way -- at least when it comes to a warning > like the one above. In commit 1726dbb4cd2dc4b19fe8d3c4b94e172fc0bd2c7c I added a message that describes the failure with a bit more detail. It will print something like: <start> % <grain_size> != <offset> I'm guessing Ubuntu doesn't have that patch, and the 3.2 tarball is getting *really* old at this point (which is why I'm working toward a 3.3 release soon). Brian -- Brian C. Lane (PST8PDT) - weldr.io - lorax - parted
