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Subject: Re: write call hangs in kernel space after virtio hot-remove
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Tejun Heo wrote:
> (cc'ing Tetuso and quoting whole message)
> 
> Tetuso, could this be the same problem as the hang in wb_shutdown()
> syszbot reported?

Excuse me, but I'm too unfamiliar to judge it. ;-)

Anyway, since Fabiano has a reproducer, I appreciate trying a patch at
https://groups.google.com/forum/#!msg/syzkaller-bugs/qeR_1VM0UvU/1zcLE0Y4BAAJ .

Also, Fabiano's attempt might be somewhat related to a NULL pointer race condition
at https://groups.google.com/forum/#!msg/syzkaller-bugs/bVx4WExoTDw/G68X4kPcAQAJ .