Check spinlock usage on others threads while main is solving symboles

[svalat]

No description provided.

[svalat]

Observed block analysing python prog using pyarrow package at exit time of python when solving symbols.

Threads are in spinlocks (inside malt) creating LocalAnalayser and popen looks not notifiued

[bernarda78]

I encountered this issue on remote server but works fine on my local machine, on the same program execution and inputs.

On remote server (where I fail to profile with malt), some errors appear :

Warning : At /***/malt/src/lib/tools/ELFReader.cpp:136 :
Warning : Invalid kind of elf file, expect ELF (3), get 0

Warning : At /***/malt/src/lib/tools/ELFReader.cpp:220 :
Warning : Caution, get NULL elf structure, ignore it and skip global variable extraction.

Remote configuration:

$ uname -a
Linux remote_host 3.10.0-1160.119.1.el7.x86_64 #1 SMP Tue Jun 4 14:43:51 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -a
LSB Version:	:core-4.1-amd64:core-4.1-ia32:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-ia32:cxx-4.1-noarch:desktop-4.1-amd64:desktop-4.1-ia32:desktop-4.1-noarch:languages-4.1-amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-ia32:printing-4.1-noarch
Distributor ID:	CentOS
Description:	CentOS Linux release 7.9.2009 (Core)
Release:	7.9.2009
Codename:	Core

Local machine configuration :

$ uname -a
Linux local_host 6.1.0-22-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.94-1 (2024-06-21) x86_64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux 12 (bookworm)
Release:	12
Codename:	bookworm

Same version of pyarrow == 16.1.0 which seemed to trigger the issues.

Same version of binutils == 2.40 which contains nm and addr2line command.

Feel free to ask more details if needed.