On Thu 03-05-18 10:48:20, Matthew Wilcox wrote:
> On Thu, May 03, 2018 at 12:05:14PM -0400, Jeff Layton wrote:
> > On Thu, 2018-05-03 at 16:42 +0200, Jan Kara wrote:
> > > On Wed 25-04-18 17:07:48, Fabiano Rosas wrote:
> > > > I'm looking into an issue where removing a virtio disk via sysfs while
On Thu, May 03, 2018 at 12:05:14PM -0400, Jeff Layton wrote:
> On Thu, 2018-05-03 at 16:42 +0200, Jan Kara wrote:
> > On Wed 25-04-18 17:07:48, Fabiano Rosas wrote:
> > > I'm looking into an issue where removing a virtio disk via sysfs while
> > > another
> > > process is issuing write() calls
On Thu, 2018-05-03 at 16:42 +0200, Jan Kara wrote:
> On Wed 25-04-18 17:07:48, Fabiano Rosas wrote:
> > I'm looking into an issue where removing a virtio disk via sysfs while
> > another
> > process is issuing write() calls results in the writing task going into a
> > livelock:
> >
> >
> >
On Wed 25-04-18 17:07:48, Fabiano Rosas wrote:
> I'm looking into an issue where removing a virtio disk via sysfs while another
> process is issuing write() calls results in the writing task going into a
> livelock:
>
>
> root@guest # cat test.sh
> #!/bin/bash
>
> dd if=/dev/zero of=/dev/vda
On 2018-04-26 18:10, Tetsuo Handa wrote:
> Anyway, since Fabiano has a reproducer, I appreciate trying a patch at
> https://groups.google.com/forum/#!msg/syzkaller-bugs/qeR_1VM0UvU/1zcLE0Y4BAAJ
> .
Regarding the "INFO: task hung in wb_shutdown (2)" report mentioned above, I
can't find a
Tejun Heo wrote:
> (cc'ing Tetuso and quoting whole message)
>
> Tetuso, could this be the same problem as the hang in wb_shutdown()
> syszbot reported?
Excuse me, but I'm too unfamiliar to judge it. ;-)
Anyway, since Fabiano has a reproducer, I appreciate trying a patch at
(cc'ing Tetuso and quoting whole message)
Tetuso, could this be the same problem as the hang in wb_shutdown()
syszbot reported?
On Wed, Apr 25, 2018 at 05:07:48PM -0300, Fabiano Rosas wrote:
> I'm looking into an issue where removing a virtio disk via sysfs while another
> process is issuing
I'm looking into an issue where removing a virtio disk via sysfs while another
process is issuing write() calls results in the writing task going into a
livelock:
root@guest # cat test.sh
#!/bin/bash
dd if=/dev/zero of=/dev/vda bs=1M count=1 &
sleep 1
echo 1 >
