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SubjectRe: general protection fault in open_fs_devices
On Wed, Jun 6, 2018 at 6:28 PM, Anand Jain <anand.jain@oracle.com> wrote:
>
>
> On 06/06/2018 09:17 PM, syzbot wrote:
>
>
>
> Which means there was some other thread which freed our %fs_devices.
> As this thread is still in open_ctree() so the contending thread can't
> be the ioctl(). So btrfs_free_stale_devices() is the only thread which
> can free our %fs_devices in this case.
>
> This is fixed in [1] in the mailing list.
>
> [1]
> [PATCH 3/3] btrfs: fix race between mkfs and mount


Let's tell about this syzbot:

#syz fix: btrfs: fix race between mkfs and mount

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