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Re: [PATCH for-4.18] tools/libs/evtchn: Drop assert()s referencing MiniOS's main_thread


  • To: Jan Beulich <jbeulich@xxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Mon, 11 Nov 2024 15:23:59 +0000
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  • Cc: Juergen Gross <jgross@xxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Mon, 11 Nov 2024 15:24:25 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 11/11/2024 2:53 pm, Andrew Cooper wrote:
> On 11/11/2024 2:47 pm, Andrew Cooper wrote:
>> On 11/11/2024 2:41 pm, Jan Beulich wrote:
>>> On 11.11.2024 15:31, Andrew Cooper wrote:
>>>> This breaks the build with debug active, as main_thread is not an exposed
>>>> symbol.
>>>>
>>>> This is a minimal version of commit bc4fe94a69d4 ("tools/libs/evtchn: 
>>>> replace
>>>> assert()s in stubdom with proper locking").  It leaves MiniOS no worse off
>>>> with respect to thread safety.
>>>>
>>>> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>>>> ---
>>>> CC: Jan Beulich <JBeulich@xxxxxxxx>
>>>> CC: Juergen Gross <jgross@xxxxxxxx>
>>>>
>>>> Speculative fix.  Gitlab is a little busy right now:
>>>>
>>>>   https://gitlab.com/xen-project/people/andyhhp/xen/-/pipelines/1536597753
>>> Assuming it helps:
>>> Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
>> Testing is still going, but various ones have passed where previously
>> they failed, so yes, it is helping.
>>
>>> Considering that 4.18 pre-dates the export restrictions, I'm a little 
>>> puzzled
>>> though. And indeed a400dd51706867565ed1382b23d3475bb30668c2 is a 4.19 
>>> commit;
>>> the update of the main tree branch (3c81457aa338) should have used
>>> ff13dabd3099687921145a5e3e960ba8337e7488 instead, if I'm not mistaken.
>> Oh yes.  I've messed that up.
>>
>> I'll try again with the correct revision.
> With the revision fixed:
>
> https://gitlab.com/xen-project/people/andyhhp/xen/-/pipelines/1536629643

Yes, having the correct MiniOS revision does work too.  I'll fix that up.

~Andrew



 


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