Re: blockdev kernel regression (bugzilla 173031)

2016-10-06 Thread NeilBrown
On Thu, Oct 06 2016, Francesco Dolcini wrote: > On Thu, Oct 06, 2016 at 04:42:52PM +1100, NeilBrown wrote: > cc >> Maybe there is a race, but that seems unlikely. > > Consider that just hot removal while writing is not enough to > reproduce systematically the bug. > > while true; do [ ! -f /media

Re: blockdev kernel regression (bugzilla 173031)

2016-10-06 Thread Francesco Dolcini
On Thu, Oct 06, 2016 at 04:42:52PM +1100, NeilBrown wrote: cc > Maybe there is a race, but that seems unlikely. Consider that just hot removal while writing is not enough to reproduce systematically the bug. while true; do [ ! -f /media/usb/.not_mounted ] \ && dd if=/dev/zero of=/media/u

Re: blockdev kernel regression (bugzilla 173031)

2016-10-05 Thread NeilBrown
On Wed, Oct 05 2016, Francesco Dolcini wrote: > Hi all, > Adding linux-block in CC for this bug report. > > > On Wed, Oct 05, 2016 at 01:00:57PM +1100, NeilBrown wrote: >> On Wed, Oct 05 2016, Francesco Dolcini wrote: >> > Hi all, >> > moving from kernel 3.14 to kernel 4.1 I had a kernel regressio

Re: blockdev kernel regression (bugzilla 173031)

2016-10-05 Thread Francesco Dolcini
Hi all, Adding linux-block in CC for this bug report. On Wed, Oct 05, 2016 at 01:00:57PM +1100, NeilBrown wrote: > On Wed, Oct 05 2016, Francesco Dolcini wrote: > > Hi all, > > moving from kernel 3.14 to kernel 4.1 I had a kernel regression on block > > device. > > > > Problem first arise while