[petsc-dev] ld: warning: could not create compact unwind for _dgeev_: registers 27 and 28 not saved contiguously in frame

[Barry Smith]

   Urgg, I was sure we saw it recently and "fixed" it but searches on my machine and googling don't find any particular place where we fixed it so I must be imagining things.

  Barry


> On Jul 19, 2022, at 2:22 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> 
> Barry,
> 
> Which commit in 3.17 fixed this?
> 
> Fande,
> 
> If I add a patch to branch "release-3.16" - would that get used? [as there won't be any new 3.16 tarballs]
> 
> BTW: Any particular reason to use fblaslapack - instead of [default] veclib on Mac?
> 
> Satish
> 
> 
> On Tue, 19 Jul 2022, Fande Kong wrote:
> 
>> Hi Barry,
>> 
>> It would be nice if we could get this patch to PETSc-3.16.
>> 
>> We will upgrade to PETSc-3.17 for sure but it will take a while
>> 
>> Fande
>> 
>> On Tue, Jul 19, 2022 at 11:59 AM Barry Smith <bsmith at petsc.dev> wrote:
>> 
>>> 
>>>  I think we have a fix for this in the 3.17 release. Perhaps Satish could
>>> stick this line into the 3.16 release/tag for its users?
>>> 
>>>  Barry
>>> 
>>> 
>>>> On Jul 19, 2022, at 1:48 PM, Fande Kong <fdkong.jd at gmail.com> wrote:
>>>> 
>>>> Hi PETSc team,
>>>> 
>>>> We had trouble when compiling fblaslapack on Apple M1.  We could get
>>> around this issue by using the following patch, but do not really know
>>> whether or not it is the right way to fix this issue.
>>>> 
>>>> petsc % git diff
>>>> 
>>>> diff --git a/config/BuildSystem/config/framework.py
>>> b/config/BuildSystem/config/framework.py
>>>> index 5b210ebb58..0ce27ef06d 100644
>>>> --- a/config/BuildSystem/config/framework.py
>>>> +++ b/config/BuildSystem/config/framework.py
>>>> @@ -554,6 +554,7 @@ class Framework(config.base.Configure,
>>> script.LanguageProcessor):
>>>>       lines = [s for s in lines if s.find(' was built for newer macOS
>>> version') < 0]
>>>>       lines = [s for s in lines if s.find(' was built for newer OSX
>>> version') < 0]
>>>>       lines = [s for s in lines if s.find(' stack subq instruction is
>>> too different from dwarf stack size') < 0]
>>>> +      lines = [s for s in lines if s.find('could not create compact
>>> unwind') < 0]
>>>>       # Nvidia linker
>>>>       lines = [s for s in lines if s.find('nvhpc.ld contains output
>>> sections') < 0]
>>>>       if lines: output = '\n'.join(lines)
>>>> 
>>>> 
>>>> Please check the log file to have more details of failing messages.
>>>> 
>>>> 
>>>> Thanks,
>>>> 
>>>> Fande
>>>> <configure.log>
>>> 
>>> 
>> 
>