Messages in this thread | | | Date | Thu, 2 Dec 2010 09:17:37 -0500 | From | Christoph Hellwig <> | Subject | Re: Bugs in mkfs.xfs, device mapper, xfs, and /dev/ram |
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On Thu, Dec 02, 2010 at 03:14:28PM +0100, Spelic wrote: > On 12/02/2010 03:11 PM, Christoph Hellwig wrote: > >I'm pretty sure you have CONFIG_DEBUG_BLOCK_EXT_DEVT enabled. This > >option must never be enabled, as it causes block devices to be > >randomly renumered. Together with the ramdisk driver overloading > >the BLKFLSBUF ioctl to discard all data it guarantees you to get > >data loss like yours. > > Nope... > > # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
Hmm, I suspect dm-linear's dumb forwarding of ioctls has the same effect.
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