Re: an infinite loop in ext4 in 3.14

2014-04-19 Thread Mikulas Patocka
On Thu, 17 Apr 2014, Theodore Ts'o wrote: > On Thu, Apr 17, 2014 at 03:23:13PM -0400, Mikulas Patocka wrote: > > > > I hit a bug in ext4 - jbd2 was stuck in an infinite loop when remounting > > the root filesystem read-only during shutdown. > > Is this at all repeatable? I suspect what happe

Re: an infinite loop in ext4 in 3.14

2014-04-17 Thread Mikulas Patocka
On Thu, 17 Apr 2014, Theodore Ts'o wrote: > On Thu, Apr 17, 2014 at 03:23:13PM -0400, Mikulas Patocka wrote: > > > > I hit a bug in ext4 - jbd2 was stuck in an infinite loop when remounting > > the root filesystem read-only during shutdown. > > Is this at all repeatable? No - it happened jus

Re: an infinite loop in ext4 in 3.14

2014-04-17 Thread Theodore Ts'o
On Thu, Apr 17, 2014 at 03:23:13PM -0400, Mikulas Patocka wrote: > > I hit a bug in ext4 - jbd2 was stuck in an infinite loop when remounting > the root filesystem read-only during shutdown. Is this at all repeatable? I suspect what happened is that we're not checking the error return from jbd2

an infinite loop in ext4 in 3.14

2014-04-17 Thread Mikulas Patocka
Hi I hit a bug in ext4 - jbd2 was stuck in an infinite loop when remounting the root filesystem read-only during shutdown. The filesystem is ext3, but it uses the ext4 driver with the following options: rw,relatime,discard,errors=remount-ro,data=ordered The machine was stuck, but it was possib