On Monday 19 March 2007, James Bottomley wrote: >On Mon, 2007-03-19 at 12:49 -0500, Mike Christie wrote: >> > I can't even say if the tapes are written correctly as I can't read >> > them (one does not reboot production machines back to 2.4.x just to >> > try to read a backup tape - I don't have 2.6.x older than 2.6.20 on >> > these machines). >> >> Could you try this patch >> http://marc.info/?l=linux-scsi&m=116464965414878&w=2 >> I thought st was modified to not send offsets in the last elements but >> it looks like it wasn't. > >Actually, there are two patches in the email referred to. If the >analysis that we're passing NULL to mempool_free is correct, it should >be the second one that fixes the problem (the one that checks >bio->bi_io_vec before freeing it). Which would mean we have a >nr_vecs==0 bio generated by the tar somehow. > >James James, could this also be the cause of a tar based backup going crazy and thinking all data is new under any 2.6.21-rc* kernel I've tested so far with amanda, which in my case uses tar? I've tried the fedora patched tar-1.15-1, and one I hand built right after 1.15-1 came out over a year ago, and they both do it, but only when booted to a 2.6.21-rc* kernel. This obviously will be a show-stopper, either for amanda (and by inference, any app that uses tar), or for the migration of an amanda users machinery to a 2.6.21 kernel. > >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" > in the body of a message to majordomo@xxxxxxxxxxxxxxx >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) fractal radiation jamming the backbone - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
