Re: [PATCH v2] PCI: Fix crash during pci_dev hot-unplug on pseries KVM guest

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Amit Machhiwal <amachhiw@xxxxxxxxxxxxx> writes:
> Hi Bjorn,
>
> On 2024/07/25 03:55 PM, Bjorn Helgaas wrote:
>> On Thu, Jul 25, 2024 at 11:15:39PM +0530, Amit Machhiwal wrote:
>> > ...
>> > The crash in question is a critical issue that we would want to have
>> > a fix for soon. And while this is still being figured out, is it
>> > okay to go with the fix I proposed in the V1 of this patch?
>> 
>> v6.10 has been released already, and it will be a couple months before
>> the v6.11 release.
>> 
>> It looks like the regression is 407d1a51921e, which appeared in v6.6,
>> almost a year ago, so it's fairly old.
>> 
>> What target are you thinking about for the V1 patch?  I guess if we
>> add it as a v6.11 post-merge window fix, it might get backported to
>> stable kernels before v6.11?  
>
> Yes, I think we can go ahead with taking V1 patch for v6.11 post-merge window to
> fix the current bug and ask Ubuntu to pick it while Lizhi's proposed patch goes
> under test and review.

Lizhi's proposed patch (v3?) looks pretty small and straight forward.
It should be possible to get it tested and reviewed and merge it as a
fix during the v6.11-rc series.

Or if the CONFIG option is completely broken as Rob suggests then it
should just be forced off in Kconfig.

cheers




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