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Re: [Xen-devel] [PATCH v2] xen/balloon: Don't continue ballooning when BP_ECANCELED is encountered

On 07/10/14 22:00, Boris Ostrovsky wrote:
> Commit 3dcf63677d4e ("xen/balloon: cancel ballooning if adding new
> memory failed") makes reserve_additional_memory() return BP_ECANCELED
> when an error is encountered. This error, however, is ignored by the
> caller (balloon_process()) since it is overwritten by subsequent call
> to update_schedule(). This results in continuous attempts to add more
> memory, all of which are likely to fail again.
> We should stop trying to schedule next iteration of ballooning when
> the current one has failed.

What triggers this bug?  I could never work out what it was.

Applied to stable/for-linus-3.18


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