Re: [bug report from blktests nvme/032] WARNING: possible circular locking dependency detected

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On Jul 19, 2022 / 02:05, yangx.jy@xxxxxxxxxxx wrote:
> On 2022/7/5 8:48, Shinichiro Kawasaki wrote:
> > On Jun 27, 2022 / 23:18, Christoph Hellwig wrote:
> >> On Tue, Jun 28, 2022 at 08:12:51AM +0200, Greg Kroah-Hartman wrote:
> >>> Ah, so it's a fake PCI device, or is it a real one?
> >>
> >> Whatever the blktests configuration points to.  But even if it is
> >> "fake" that fake would come from the hypervisor.
> > 
> > FYI, the WARN was observed with real PCI NVMe device also. I observed the WARN
> > with v5.19-rc1 and still observe with v5.19-rc5. I'm not sure which version
> > introduced the WARN.
> > 
> > I once reported this failure, and shared with linux-pci list.
> > 
> > https://lore.kernel.org/linux-block/20220614010907.bvbrgbz7nnvpnw5w@shindev/
> > 
> 
> Hi Shinichiro,
> 
> I wonder if the failure has been fixed? If so, could you tell me the fix 
> patch?

No, I'm not aware of fix for the failure yet. At v5.19-rc6, I still observe the
failure.

-- 
Shin'ichiro Kawasaki



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