Re: bdrv_drained_begin deadlock with io-threads

[Kevin Wolf]

Am 03.04.2020 um 10:26 hat Dietmar Maurer geschrieben:
> > With the following patch, it seems to survive for now. I'll give it some
> > more testing tomorrow (also qemu-iotests to check that I didn't
> > accidentally break something else.)
> 
> Wow, that was fast! Seems your patch fixes the bug!
> 
> I wonder what commit introduced that problem, maybe:
> 
> https://github.com/qemu/qemu/commit/cf3129323f900ef5ddbccbe86e4fa801e88c566e#diff-7cb66df56045598b75a219eebc27efb6
> 
> If so, version 4.1.X in not affected by this bug, but 4.2.0 and later?

Yes, I'm pretty sure that's the one.

Kevin