Bug 298904

Summary: kde become no-response when kwrite opens a file that contains only three specific bytes
Product: [Applications] kate Reporter: raysoft
Component: kwriteAssignee: KWrite Developers <kwrite-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: critical    
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: this file(3 bytes) contains EF BB BF

Description raysoft 2012-04-27 12:49:13 UTC 
CPU utility is very high and it costs lots of RAM then kde become no-response when kwrite opens a file that contains only 3 bytes: EF BB BF.
However, there is no problem if I use gedit or vim to open this file.

Reproducible: Always

Steps to Reproduce:
1.create a new file
2.use any hex-editor to input these three bytes(in hex): EF BB BF
3.use kwrite to open this file
Actual Results:  
high CPU utility and it costs more and more memory and then kde becomes no-response

Expected Results:  
kwrite should open it very fast

My OS is Fedora 15 x86_64 and I use KDE 4.6.5
Comment 1 raysoft 2012-04-27 13:03:38 UTC 
Created attachment 70702 [details]
this file(3 bytes) contains EF BB BF

Computer will become no-response when kwrite opens this file because it costs too much RAM
Comment 2 Dominik Haumann 2012-04-27 17:47:14 UTC 
Was fixed for KDE 4.7, please update. I will add your file as test case, though.

*** This bug has been marked as a duplicate of bug 272579 ***