Re: BUG_ON with percpu-tags v2 + tcm_vhost consumer

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On Fri, Jun 14, 2013 at 03:40:13PM -0700, Nicholas A. Bellinger wrote:
> Hey Kent,
> 
> So after rebasing target-tag-pool to include your percpu-tags v2 code
> from earlier this week, the BUG_ON(tag >= pool->nr_tags) below is
> immediately being triggered in the tcm_vhost response -> release path
> with a 4x tcm_vhost endpoint / ramdisk LUN + scsi-mq virtio-scsi client
> setup.

Hey, sorry for not getting back to you sooner - I ended up heavily
reworking it again, and rewriting ida/idr because Andrew Morton was
complaining so much :) I'm mailing the new version out now - and last
week while I was going over akpm's review feedback I noticed an ABA that
might be the bug you ran into - if so, that should be fixed now.
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