Bug 27367

Summary: XSyncCreateAlarm causes server to use 100% CPU
Product: xorg Reporter: Göran Weinholt <goran>
Component: Server/GeneralAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED WORKSFORME QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Bug Depends on:    
Bug Blocks: 27592    
Attachments:
Description Flags
Test case none

Description Göran Weinholt 2010-03-29 15:32:22 UTC 
Created attachment 34536 [details]
Test case

I'm using the SYNC extension to create a recurring event. The events happen as I expect them to, but the server uses 100% CPU. The server remains responsive and the CPU usage returns to normal when the client exits. I've attached a small program that triggers the problem.

I'm running Debian lenny (xorg 7.3) but I've also observed this behavior on Debian testing (xorg 7.5).
Comment 1 Keith Packard 2010-07-14 12:09:40 UTC 
I tried the test program and cannot reproduce the CPU usage. I'm going to close this bug; please provide more info if you still see this using X server master.

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