Red Hat Bugzilla – Full Text Bug Listing
|Summary:||gdm-simple-greeter uses 100% CPU if password file is big|
|Product:||Red Hat Enterprise Linux 6||Reporter:||Matthias Schroder <matthias.schroder>|
|Status:||CLOSED CURRENTRELEASE||QA Contact:||desktop-bugs <desktop-bugs>|
|Version:||6.0||CC:||caillon, cschalle, rlat, rstrode, tpelka|
|Fixed In Version:||gdm-2.30.4-2.el6||Doc Type:||Rebase: Bug Fixes and Enhancements|
|Doc Text:||Story Points:||---|
|Last Closed:||2010-11-10 15:27:44 EST||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
Description Matthias Schroder 2010-06-01 09:27:03 EDT
Description of problem: When the password file is big, and disable_user_list is false, gdm-simple-greeter uses 100% CPU for several minutes after startup Version-Release number of selected component (if applicable): 2.28.2-5.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1. Use large password file 2. boot machine 3. watch gdm-simple-greeter hogging CPU Actual results: gdm-simple-greeter hogs CPU Expected results: CPU available for useful things Additional info: 1) Setting disable_user_list to true (I had to search quite a bit to find that one) avoids the issue. 2) This could be related to https://bugzilla.redhat.com/show_bug.cgi?id=598145 3) Numbers: processing a ~22k password file takes 5 minutes :(
Comment 2 RHEL Product and Program Management 2010-06-07 12:07:47 EDT
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux major release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Major release. This request is not yet committed for inclusion.
Comment 3 Ray Strode [halfline] 2010-06-11 09:58:26 EDT
Just an update here. Jon has done considerable work making this quite fast upstream.
Comment 4 Ray Strode [halfline] 2010-06-11 10:30:44 EDT
We should rebase to pull this in. Otherwise we're going to have a bunch of pointless patches in cvs that will make maintainability more difficult. The gnome-2-30 branch is all minor bugfixes and translation updates.
Comment 5 Tomas Pelka 2010-06-16 02:54:42 EDT
Reproducer in #c0, giving qa_ack.
Comment 7 jmccann 2010-06-22 14:12:51 EDT
*** Bug 598145 has been marked as a duplicate of this bug. ***
Comment 8 Ray Strode [halfline] 2010-06-29 15:22:28 EDT
Should be good to go.
Comment 10 Matthias Schroder 2010-07-16 09:49:07 EDT
In beta 2 the time it takes for the simple-greeter is ok now. But the gdm-user-switch-applet still needs 1:45, and during that time I don't get the gnome-panel. I admit that the time has decreased significantly, but it is still quite long. And together with https://bugzilla.redhat.com/show_bug.cgi?id=610233 this becomes painful...
Comment 11 jmccann 2010-07-16 10:31:06 EDT
Please file a new bug for that. Can you attach gdb to the user switch applet during this time and interrupt it a few times to see where it is spending time? Thanks.
Comment 12 Radek Lat 2010-08-17 07:18:01 EDT
Tested with >40k password file on gdm-2.30.4-21.el6.x86_64. No CPU hogging. Moving to VERIFIED.
Comment 13 firstname.lastname@example.org 2010-11-10 15:27:44 EST
Red Hat Enterprise Linux 6.0 is now available and should resolve the problem described in this bug report. This report is therefore being closed with a resolution of CURRENTRELEASE. You may reopen this bug report if the solution does not work for you.