[dm-devel] dm-crypt with no_read_workqueue and no_write_workqueue + btrfs scrub = BUG()

Wed Dec 23 20:56:42 UTC 2020

On Wed, Dec 23, 2020 at 04:37:34PM +0100, Maciej S. Szmigiero wrote:
> 
> It looks like to me that the skcipher API might not be safe to
> call from a softirq context, after all.

skcipher is safe to use in a softirq.  The problem is only in
dm-crypt where it tries to allocate memory with GFP_NOIO.

Cheers,
-- 
Email: Herbert Xu <herbert at gondor.apana.org.au>
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