[Bug 1555582] [NEW] lsof php5 maxlifetime and sessionclean prevents laptop to suspend

[Saren Taşçıyan]

Public bug reported:

My laptop (Lenovo T450s) fails to suspend sometimes with Ubuntu 14.04
LTS. I have checked the kern.log and found out lsof processes started by
php5 package is causing a problem. The relevant section from the log
file is attached.

Description:	Ubuntu 14.04.4 LTS
Release:	14.04

php5:
  Installed: (none)
  Candidate: 5.5.9+dfsg-1ubuntu4.14
  Version table:
     5.5.9+dfsg-1ubuntu4.14 0
        500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
     5.5.9+dfsg-1ubuntu4 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

It seems to be unfinished accumulating lsof processes have a problem
with mutexes, so Ubuntu can't pause them. I have the most recent BIOS
version and everything is up to date.

** Affects: php5 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: suspend

** Attachment added: "kern.log extract"
   https://bugs.launchpad.net/bugs/1555582/+attachment/4594931/+files/lsof%20problem.txt

** Description changed:

  My laptop (Lenovo T450s) fails to suspend sometimes with Ubuntu 14.04
  LTS. I have checked the kern.log and found out lsof processes started by
  php5 package is causing a problem. The relevant section from the log
  file is attached.
  
  Description:	Ubuntu 14.04.4 LTS
  Release:	14.04
  
- 
  php5:
-   Installed: (none)
-   Candidate: 5.5.9+dfsg-1ubuntu4.14
-   Version table:
-      5.5.9+dfsg-1ubuntu4.14 0
-         500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
-         500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
-      5.5.9+dfsg-1ubuntu4 0
-         500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
+   Installed: (none)
+   Candidate: 5.5.9+dfsg-1ubuntu4.14
+   Version table:
+      5.5.9+dfsg-1ubuntu4.14 0
+         500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
+         500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
+      5.5.9+dfsg-1ubuntu4 0
+         500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
  
  It seems to be unfinished accumulating lsof processes have a problem
- with mutexes, so Ubuntu can't pause them.
+ with mutexes, so Ubuntu can't pause them. I have the most recent BIOS
+ version and everything is up to date.

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Title:
  lsof php5 maxlifetime and sessionclean prevents laptop to suspend

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