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Message-ID: <20130313190141.GF5604@thunk.org> Date: Wed, 13 Mar 2013 15:01:41 -0400 From: Theodore Ts'o <tytso@....edu> To: Josh Triplett <josh@...htriplett.org> Cc: linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org, Andreas Dilger <adilger.kernel@...ger.ca> Subject: Re: NULL pointer dereference in ext4_superblock_csum_set with mounted filesystem 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 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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