Re: [PATCH] PCI/hotplug: Replaced down_write_nested with hotplug_slot_rwsem if ctrl->depth > 0 when taking the ctrl->reset_lock.

[Anatoli Antonovitch <anatoli.antonovitch@xxxxxxx>]

Hi Lukas,

Can we revisit the patches again to get a fix?
The issue still reproduce and visible in the kernel 6.2.0-rc8.

Thanks,
Anatoli

On 2023-01-23 14:30, Anatoli Antonovitch wrote:
> I do not see a deadlock, when applying the following old patch:
> https://lore.kernel.org/linux-pci/908047f7699d9de9ec2efd6b79aa752d73dab4b6.1595329748.git.lukas@xxxxxxxxx/ 
>
> after merge for the kernel 6.2.0-rc5, and applied the alternative patch:
> https://patchwork.kernel.org/project/linux-pci/patch/3dc88ea82bdc0e37d9000e413d5ebce481cbd629.1674205689.git.lukas@xxxxxxxxx/ 
>
>
> I have uploaded the merged patch and the system log for the upstream 
> kernel.
>
> Anatoli
>
>
> On 2023-01-21 02:21, Lukas Wunner wrote:
> > You're now getting a different deadlock. That one is addressed by this
> > old patch (it's already linked from the bugzilla):
> >
> > https://lore.kernel.org/linux-pci/908047f7699d9de9ec2efd6b79aa752d73dab4b6.1595329748.git.lukas@xxxxxxxxx/ 
> >
> >
> > If you apply that patch plus the new one, do you still see a deadlock?