> > > diff --git i/drivers/md/md.c w/drivers/md/md.c
> > > index 6072782070230..49442a3f4605b 100644
> > > --- i/drivers/md/md.c
> > > +++ w/drivers/md/md.c
> > > @@ -7591,8 +7591,10 @@ static int md_ioctl(struct block_device *bdev,
> > > fmode_t mode,
> > > err = -EBUSY;
>
On Mon, Oct 19, 2020 at 12:03 AM Dae R. Jeong wrote:
>
> > diff --git i/drivers/md/md.c w/drivers/md/md.c
> > index 6072782070230..49442a3f4605b 100644
> > --- i/drivers/md/md.c
> > +++ w/drivers/md/md.c
> > @@ -7591,8 +7591,10 @@ static int md_ioctl(struct block_device *bdev,
> > fmode_t mode,
>
> diff --git i/drivers/md/md.c w/drivers/md/md.c
> index 6072782070230..49442a3f4605b 100644
> --- i/drivers/md/md.c
> +++ w/drivers/md/md.c
> @@ -7591,8 +7591,10 @@ static int md_ioctl(struct block_device *bdev,
> fmode_t mode,
> err = -EBUSY;
>
On Sat, Oct 17, 2020 at 4:13 AM Dae R. Jeong wrote:
>
> Hi,
>
> I looked into the warning "WARNING in md_ioctl" found by Syzkaller.
> (https://syzkaller.appspot.com/bug?id=fbf9eaea2e65bfcabb4e2750c3ab0892867edea1)
> I suspect that it is caused by a race between two concurrenct ioctl()s as
>
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