Re: [BUG 2.6.17-git] kmem_cache_create: duplicate cache scsi_cmd_cache

[Al Viro]

On Fri, May 12, 2006 at 10:43:54PM +0100, Al Viro wrote:
> On Fri, May 12, 2006 at 09:34:16PM +0100, Russell King wrote:
> > On Fri, May 12, 2006 at 10:36:57AM -0700, Linus Torvalds wrote:
> > > Yes. We could just revert that commit, but it seems correct, and I'd 
> > > really like for somebody to understand _why_ that commit matters at all. I 
> > > certainly don't see the overlap here..
> > 
> > Reverting the commit breaks MMC/SD in a very real way, and the fix
> > is plainly correct and is actually the only possible fix that can be
> > applied.
> 
> Bullshit.  Could you explain what generic code dereferences ->driverfs_dev
> after del_gendisk()?  If you see such beast, please tell; _that_ is the
> real bug.

Aha...  So block_uevent() appears to be badly broken.  Lovely...

OK, could somebody explain WTF is userland supposed to do with event
refering to device that had been gone for a long time?
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