>On Wed, Jan 29, 2003 at 08:32:44PM +0100, Svetoslav Slavtchev wrote: >> useing lvm2(with lvm1 everything is working perfect for the last 6 months) >> when i try to mount a xfs filesystem wich is on >> lv over soft raid-0, i'm getting just like in >> 2.5.2x - 2.5.4x (i didn't try later kernels) : >> >> ############################ >> raid0_make_request bug: can't convert block across chunks or bigger than 16k >> 25181311 4 >> raid0_make_request bug: can't convert block across chunks or bigger than 16k >> 25181343 4 >> ############################ >> >> is this know problem, is it fixed ? >This is an XFS problem, search the list for info on using the new >journal format. The reason it has been working for LVM1 is that XFS >has some hard coding in that recognises the LVM1 major number, and >drops back journal to to 512byte chunks. i think i misunderstand something, i'm trying to mount my old lvm1 volumes, if xfs crated them with 512byte chunks cause of this hard coded major number, why should i have troubles when i try to mount them using lvm2 > i thought that the problem exist only in 2.5 kernel >This shouldn't be a problem with 2.5. If you have seen similar >problems please send me details. > i'll drop a line as soon as i try it out best, svetljo PS. on more question, in case i find a way to make a back-up to convert to other chunk size for the log( not very likely:( ) which chunk size should i use ? will it impact performance ?