Re: [PATCH, RFC] xfs: fix multi-AG deadlock in xfs_bunmapi

Nikolay Borisov
2017-07-26T13:59:29Z

On 26.07.2017 16:04, Christoph Hellwig wrote:
> But this is just on 4.4 and older, right? We had issues in the
> allocation path there as well, which should be fixed in 4.11 and later,
> and in recrnt 4.9-stable releases. Without those the allocation path
> might sometimes lock out of order as well.

I will try to repro on 4.11 WITHOUT your patch just to see that the
issue happens there as well. But if memory serves me right on newer
kernels it was much harder to hit (but not impossible).