Re: [PATCH 1/2] iommu/vt-d: Fix PCI device reference count leak in has_external pci() #forregzbot

[Baolu Lu <baolu.lu@linux.intel.com>]

On 2022/12/26 21:29, Thorsten Leemhuis wrote:
> [Note: this mail contains only information for Linux kernel regression
> tracking. Mails like these contain '#forregzbot' in the subject to make
> then easy to spot and filter out. The author also tried to remove most
> or all individuals from the list of recipients to spare them the hassle.]
> 
> On 25.12.22 13:11, Zeno Davatz wrote:
>> Hi
>>
>> I am getting this hang with kernel 6.1. See attachment.
>>
>> Is this related to your patch?
>>
>> Kernel 6.1 does not boot for me. Kernel 6.0 was fine.
>>
>> Thank you for your reply.
> 
> Thanks for the report. To be sure below issue doesn't fall through the
> cracks unnoticed, I'm adding it to regzbot, my Linux kernel regression
> tracking bot:
> 
> #regzbot ^introduced v6.0..v6.1-rc1
> #regzbot title pci(?)/iommu(?): hang with kernel 6.1
> #regzbot ignore-activity
> 
> Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
> 
> P.S.: As the Linux kernel's regression tracker I deal with a lot of
> reports and sometimes miss something important when writing mails like
> this. If that's the case here, don't hesitate to tell me in a public
> reply, it's in everyone's interest to set the public record straight.
> 

The reporter said that "The problem happens somewhere between Kernel
Version 6.0 and 6.1-rc1." This patch only shows up since v6.1-rc8. This
patch cannot generate any kernel regression on v6.1-rc1.

--
Best regards,
baolu