Bug 173967

Summary:	pressing ctrl-shift quickly cause scim to segfault
Product:	[Fedora] Fedora	Reporter:	Lawrence Lim <llim>
Component:	scim	Assignee:	Jens Petersen <petersen>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	eng-i18n-bugs, tools-bugs
Target Milestone:	---	Keywords:	i18n
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-11-24 03:16:19 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	167798

Description Lawrence Lim 2005-11-23 06:31:23 UTC

Description of problem:
I wrote a script to press ctrl-shift quickly with 10 milliseconds interval, it
cause SCIM to crash when the IME switching gets to scim-uim.

Version-Release number of selected component (if applicable):
scim-hangul-debuginfo-0.2.1-1.fc5
scim-tables-debuginfo-0.5.4-1
scim-canna-debuginfo-0.1.0-1.fc4
scim-qtimm-debuginfo-0.9.4-1
scim-chewing-debuginfo-0.2.1-2
scim-ccinput-debuginfo-0.3.1-2.fc4
scim-uim-debuginfo-0.1.3-8.fc4
scim-fcitx-debuginfo-3.1.1-2.fc4
scim-input-pad-debuginfo-0.1.0-1.fc4
scim-debuginfo-1.4.2-6
scim-pinyin-debuginfo-0.5.91-2
scim-anthy-debuginfo-0.7.1-1.fc5

How reproducible:
Always

Steps to Reproduce:
1.ctrl-shift very quickly after activating SCIM
2.
3.
  
Actual results:
scim segfault

Expected results:
switch be able to switch between different IME

Additional info:

(gdb) c
Continuing.

Program received signal SIGSEGV, Segmentation fault.
0x00dd413c in ?? () from /usr/lib/libuim.so.0
(gdb) bt
#0  0x00dd413c in ?? () from /usr/lib/libuim.so.0
#1  0xb57a2744 in ?? ()
#2  0x00000100 in ?? ()
#3  0xbfbd77b8 in ?? ()
#4  0x00dcc676 in uim_scm_init () from /usr/lib/libuim.so.0
#5  0x00dc46bc in uim_quit () from /usr/lib/libuim.so.0
#6  0x00dc4fcf in uim_quit () from /usr/lib/libuim.so.0
#7  0x00abefd4 in ?? () from /lib/ld-linux.so.2
#8  0xb7fc0000 in ?? ()
#9  0x00000000 in ?? ()

Comment 1 Jens Petersen 2005-11-24 03:16:19 UTC

scim-uim is not in Extras or Core, afaik.
(Nor scim-canna, scim-ccinput.  scim-fcitx has been submitted to Extras though.)
Anyway better not to include "Fedora SCIM" test packages in bugzilla.

Please re-open if you can reproduce without them installed.

If it can be reproduced by hand, perhaps upstream would be interested though.

Comment 2 Lawrence Lim 2005-11-24 23:34:02 UTC

Yes. Without scim-uim the load test went very smoothly, so is the switching on
and off SCIM repeatly. I will note the package list.


Thanks.