On Fri, 2006-07-07 at 02:24 -0700, Andrew Morton wrote:
> hm.
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm6/broken-out/lockdep-annotate-8390c-disable_irq.patch
> didn't work.
-mm6 only had part 1; you also have part 2 now which should fix this one
> We've seen this reported a couple of times before. It could be a race in
> the tty layer where a newly-added vc has the same index as a going-away
> one which still has its sysfs file. Or it could be something else :(
that'd be a bug in the tty layer; the VC shouldn't be allowed to go away
until the sysfs file is gone (basic sysfs refcounting rules), and any
person keeping such a file open can delay that.
Now I can believe the tty layer having, ehm, suboptimal
refcounting/locking; I believe Alan is still trying to get it sane....
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