(Linux) race condition in process files, threads and connections

[giampaolo]

From g.rodola on June 28, 2012 17:23:03

These 3 functions have the peculiarity that we read multiple files in /proc to 
extract the information we need.
While doing so we ignore ENOENT (no such file) errors because that means a 
certain file/thread/connection disappeared on us while iterating: 
https://code.google.com/p/psutil/source/browse/tags/release-0.5.0/psutil/_pslinux.py#601

https://code.google.com/p/psutil/source/browse/tags/release-0.5.0/psutil/_pslinux.py#715

https://code.google.com/p/psutil/source/browse/tags/release-0.5.0/psutil/_pslinux.py#778
 That might also mean, though, that also the *process* disappeared on us, and 
that's not taken into accout.
The risk is that if we hit the race condition we get an empty list as a result, 
meaning the process has no threads/files/connections, while instead we should 
get a NoSuchProcess exception.

Original issue: http://code.google.com/p/psutil/issues/detail?id=292

[giampaolo]

From g.rodola on June 28, 2012 08:27:04

Fixed in r1393 .

Status: FixedInSVN

[giampaolo]

From g.rodola on June 29, 2012 09:48:19

Labels: -Milestone-1.0.0 Milestone-0.5.1

[giampaolo]

From g.rodola on June 29, 2012 11:46:17

Status: Fixed

[giampaolo]

From g.rodola on March 02, 2013 04:09:48

Updated csets after the SVN -> Mercurial migration: r1393 == revision 
ef6815f3634e