Re: NULL pointer dereference in ext4_superblock_csum_set withmounted filesystem

[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 with a kernel built from git commit
> 7c6baa304b841673d3a55ea4fcf9a5cbf7a1674b, with a stock x86-64 "make
> defconfig", and got a kernel panic:

Can you send me the output of "dumpe2fs -h" on your host system's root
file system?

Thanks,

						- Ted
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