Chris Worley wrote: > The issue I'm seeing is caused by running this repeatedly on an ext4 > fs (2.6.28.8 kernel) w/ discards enabled (a ram-based MTD device > contains the fs): > > while `true` > do i=0 > while [ $i -lt 100 ] > do dd of=foo"$i" if=/dev/zero bs=1024k oflag=direct & > let i=$i+1 > done > wait > done > > (Note: the loop is intended to fill-up the fs w/ 100 dd threads... > successive re-runs of the loop will rewrite the same files from > scratch.) > > ... It causes "soft-lockup" issues on successive iterations, > immediately as the DD's are launched, as previous foo files get their > blocks discarded. I need to find a machine w/ more memory to test on :) but with a device of half that size, on 2.6.29-rc7 machine w/ 2 cpus and 2G ram, I'm not seeing it... Any chance you can try a 2.6.29-rcX kernel just to double-check? Thanks, -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
