Message 331027 - Python tracker

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Author	vstinner
Recipients	Henrik Bengtsson, methane, vstinner
Date	2018-12-04.10:34:36
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1543919677.13.0.788709270274.issue35305@psf.upfronthosting.co.za>
In-reply-to

Content
I tested: * Python 2.6.6 (installed from RHEL) on RHEL6 * Python 2.7.15 (compiled manually) on RHEL6 * Python 2.7.15 (installed from Fedora) on Fedora 29 Note: I tested RHEL 6.10 with kernel 2.6.32-754.el6.x86_64. The fact that Python 3 is also impacted makes me think that it's a bug in your kernel, not in Python. "MY CONCLUSION: To me, this looks like a deadlock in Popen() itself - is that correct?" It works on all systems except of yours, I don't think that it's a bug in Python. You have to debug your kernel. This issue is not a Python bug, so I close it. If you are a Red Hat customer, contact Red Hat to get support.

I tested:

* Python 2.6.6 (installed from RHEL) on RHEL6
* Python 2.7.15 (compiled manually) on RHEL6
* Python 2.7.15 (installed from Fedora) on Fedora 29

Note: I tested RHEL 6.10 with kernel 2.6.32-754.el6.x86_64.

The fact that Python 3 is also impacted makes me think that it's a bug in your kernel, not in Python.


"MY CONCLUSION: To me, this looks like a deadlock in Popen() itself - is that correct?"

It works on all systems except of yours, I don't think that it's a bug in Python.

You have to debug your kernel.

This issue is not a Python bug, so I close it.

If you are a Red Hat customer, contact Red Hat to get support.

History
Date	User	Action	Args
2018-12-04 10:34:37	vstinner	set	recipients: + vstinner, methane, Henrik Bengtsson
2018-12-04 10:34:37	vstinner	set	messageid: <1543919677.13.0.788709270274.issue35305@psf.upfronthosting.co.za>
2018-12-04 10:34:37	vstinner	link	issue35305 messages
2018-12-04 10:34:36	vstinner	create