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SubjectRe: BUG: sleeping function called from invalid context at kernel/rwsem.c:131 XFS? (was: Re: linux-next: Tree for October 17)
> Ah, OK, I see the problem, though I don't understand why I'm not
> seeing the might_sleep() triggering all the time given that I always
> build with:
>
> $ grep SLEEP .config
> CONFIG_DEBUG_SPINLOCK_SLEEP=y
>
> Basically the above commit moved xfs_ilock() inside
> radix_tree_preload()/radix_tree_preload_end(), which means we are
> taking a rwsem() while we have an elevated preempt count. I'll
> get a patch out to fix it.
Could it cause the I/O dead lock or should I continue trying to reproduce it?


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