Re: NULL pointer dereference in ext4_superblock_csum_set with mounted filesystem

2013-03-14 Thread Theodore Ts'o
On Thu, Mar 14, 2013 at 10:42:16AM -0700, Josh Triplett wrote: > On Thu, Mar 14, 2013 at 12:08:35AM -0400, Theodore Ts'o wrote: > > Huh. This is very, very weird. Is this a repeatable crash? > > I could reliably replicate it for that particular session, but now that > I've rebooted the host, no.

Re: NULL pointer dereference in ext4_superblock_csum_set with mounted filesystem

2013-03-14 Thread Josh Triplett
On Thu, Mar 14, 2013 at 12:08:35AM -0400, Theodore Ts'o wrote: > Huh. This is very, very weird. Is this a repeatable crash? I could reliably replicate it for that particular session, but now that I've rebooted the host, no. - Josh Triplett -- To unsubscribe from this list: send the line "unsubs

Re: NULL pointer dereference in ext4_superblock_csum_set with mounted filesystem

2013-03-13 Thread Theodore Ts'o
Huh. This is very, very weird. Is this a repeatable crash? - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info

Re: NULL pointer dereference in ext4_superblock_csum_set with mounted filesystem

2013-03-13 Thread Josh Triplett
On Wed, Mar 13, 2013 at 03:01:41PM -0400, Theodore Ts'o wrote: > On Wed, Mar 13, 2013 at 11:59:13AM -0700, Josh Triplett wrote: > > I frequently test kernel changes by booting them with kvm's -kernel > > option, with -hda pointing to my host system's root filesystem, and > > -snapshot to prevent wr

Re: NULL pointer dereference in ext4_superblock_csum_set with mounted filesystem

2013-03-13 Thread Theodore Ts'o
On Wed, Mar 13, 2013 at 11:59:13AM -0700, Josh Triplett wrote: > I frequently test kernel changes by booting them with kvm's -kernel > option, with -hda pointing to my host system's root filesystem, and > -snapshot to prevent writing to (and likely corrupting) that root > filesystem. I tried this

NULL pointer dereference in ext4_superblock_csum_set with mounted filesystem

2013-03-13 Thread Josh Triplett
I frequently test kernel changes by booting them with kvm's -kernel option, with -hda pointing to my host system's root filesystem, and -snapshot to prevent writing to (and likely corrupting) that root filesystem. I tried this with a kernel built from git commit 7c6baa304b841673d3a55ea4fcf9a5cbf7a