[xmlsec] python-xmlsec tests fail with Python 3.10

[Aleksey Sanin]

Hi Matěj,

I don't really have any knowledge about python-xmlsec and you should
probably reach out to the people who wrote/own it.

Said that, looking at the log file for the crash
(https://gist.github.com/mcepl/43ada31674951bdbd62d8d560575a9f1)

 > if (a->error == b->error)

which is about here:

https://github.com/openssl/openssl/blob/17519e2595b5ed8211a7763ff6eb2d6cf47c13cb/crypto/err/err.c#L178

Given that this happens deep inside OpenSSL and the only possible
explanation for the crash is corrupted ERR_STRING_DATA, my first
bet would be on issues with different version of OpenSSL used/loaded
by xmlsec and python at compile/runtime. I would double check the logs
to make sure that same version of all dependencies are used, check
LD_LIBRARY_PATH, ...

My second bet would be on a memory corruption -- I would run valgrind
to see what I can find.

Best,

Aleksey
On 5/21/22 3:21 PM, Matěj Cepl wrote:
> Hi,
> 
> we are switching openSUSE/Factory to Python 3.10 as default Python 
> interpreter and one problematic package we have trouble to build is 
> python-xmlsec (there are surprisingly many packages depending on it).
> 
> Details are on https://github.com/mehcode/python-xmlsec/issues/210
> 
> Do you have any idea what’s going on?
> 
> Best,
> 
> Matěj
> 
> 
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