Re: [Qemu-devel] qemu-nbd vs 'simple' trace backend vs iotest 147

2018-07-13 Thread Stefan Hajnoczi
On Fri, Jul 13, 2018 at 08:40:19AM +0200, Paolo Bonzini wrote: > On 12/07/2018 18:30, Stefan Hajnoczi wrote: > > On Wed, Jul 11, 2018 at 03:33:21PM +0200, Cornelia Huck wrote: > >> The other qemu-nbds (the inet and the unix socket ones from the first > >> run, the second inet one from the second ru

Re: [Qemu-devel] qemu-nbd vs 'simple' trace backend vs iotest 147

2018-07-12 Thread Paolo Bonzini
On 12/07/2018 18:30, Stefan Hajnoczi wrote: > On Wed, Jul 11, 2018 at 03:33:21PM +0200, Cornelia Huck wrote: >> The other qemu-nbds (the inet and the unix socket ones from the first >> run, the second inet one from the second run) have a single thread with >> the same backtrace I posted above. > >

Re: [Qemu-devel] qemu-nbd vs 'simple' trace backend vs iotest 147

2018-07-12 Thread Stefan Hajnoczi
On Wed, Jul 11, 2018 at 03:33:21PM +0200, Cornelia Huck wrote: > The other qemu-nbds (the inet and the unix socket ones from the first > run, the second inet one from the second run) have a single thread with > the same backtrace I posted above. We just discussed this on IRC, but for the record:

Re: [Qemu-devel] qemu-nbd vs 'simple' trace backend vs iotest 147

2018-07-11 Thread Cornelia Huck
On Wed, 11 Jul 2018 15:15:45 +0200 Cornelia Huck wrote: > On Wed, 11 Jul 2018 14:06:17 +0100 > Stefan Hajnoczi wrote: > > > On Mon, Jul 09, 2018 at 03:45:49PM +0200, Cornelia Huck wrote: > > > Hi, > > > > > > I recently noticed that iotest 147 was hanging on my laptop, but worked > > > fine

Re: [Qemu-devel] qemu-nbd vs 'simple' trace backend vs iotest 147

2018-07-11 Thread Cornelia Huck
On Wed, 11 Jul 2018 14:06:17 +0100 Stefan Hajnoczi wrote: > On Mon, Jul 09, 2018 at 03:45:49PM +0200, Cornelia Huck wrote: > > Hi, > > > > I recently noticed that iotest 147 was hanging on my laptop, but worked > > fine on my s390x LPAR. Turned out that the architecture was a red > > herring; on

Re: [Qemu-devel] qemu-nbd vs 'simple' trace backend vs iotest 147

2018-07-11 Thread Stefan Hajnoczi
On Mon, Jul 09, 2018 at 03:45:49PM +0200, Cornelia Huck wrote: > Hi, > > I recently noticed that iotest 147 was hanging on my laptop, but worked > fine on my s390x LPAR. Turned out that the architecture was a red > herring; on both platforms, things fail with the 'simple' trace backend > and work