Bug 37768 – computerroom segfault due to libqjpeg.so

Bug 37768 - computerroom segfault due to libqjpeg.so


Summary:	computerroom segfault due to libqjpeg.so

Status:	CLOSED FIXED

Product:	UCS@school
Classification:	Unclassified
Component:	UMC - Computer room
Version:	UCS@school 3.2 R2
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS@school 3.2 R2 Errata
Assigned To:	Florian Best
QA Contact:	Sönke Schwardt-Krummrich

URL:
Keywords:

Depends on:	37269
Blocks:
	Show dependency tree / graph

Reported:	2015-02-11 09:30 CET by Florian Best
Modified:	2015-02-27 15:18 CET (History)
CC List:	0 users

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Description Florian Best

2015-02-11 09:30:41 CET

+++ This bug was initially created as a clone of Bug #37269 +++

2014082621000327

09.12.14 08:10:07.464  PROTOCOL    ( INFO    ) : Sending UMCP RESPONSE 141810900738998-13371
09.12.14 08:10:07.464  PARSER      ( INFO    ) : UMCP REQUEST 141810900739237-13372 parsed successfully
09.12.14 08:10:07.464  MODULE      ( INFO    ) : Received request 141810900739237-13372
09.12.14 08:10:07.464  PROTOCOL    ( INFO    ) : Received UMCP COMMAND REQUEST 141810900739237-13372
09.12.14 08:10:07.464  MODULE      ( INFO    ) : Executing ['computerroom/screenshot']
09.12.14 08:10:07.465  PROTOCOL    ( INFO    ) : Sending UMCP RESPONSE 141810900739237-13372
09.12.14 08:10:07.465  PARSER      ( INFO    ) : UMCP REQUEST 141810900739405-13373 parsed successfully
09.12.14 08:10:07.465  MODULE      ( INFO    ) : Received request 141810900739405-13373
09.12.14 08:10:07.465  PROTOCOL    ( INFO    ) : Received UMCP COMMAND REQUEST 141810900739405-13373
09.12.14 08:10:07.465  MODULE      ( INFO    ) : Executing ['computerroom/screenshot']
09.12.14 08:10:10.042  DEBUG_INIT
...


Dec  9 08:10:07 ieu04-sr12 kernel: [644830.953203] univention-mana[9143]: segfault at 7fb0dca48012 ip 00007fb0b5deaa10 sp 00007fffc89ac0a0 error 4 in libqjpeg.so[7fb0b5de6000+8000]

ucs-school-umc-computerroom 5.0.8-3.151.201411061732
libqtgui4 4:4.6.3-4.43.201107140905

Linux ieu04-sr12 3.10.0-ucs81-amd64 #1 SMP Debian 3.10.11-1.81.201409041448 (2014-09-04) x86_64 GNU/Linux
Univention DC Slave 3.2-3



No steps on how to reproduce this but it leads to an unusable UMC until UMC-web-server and UMC-server are restarted.

Comment 1 Sönke Schwardt-Krummrich

2015-02-20 18:45:08 CET

Patch has been used during build:

sschwardt@omar:/var/univention/buildsystem2/apt/ucs_3.2-0-ucs-school-3.2r2/source$ gunzip < italc_2.0.18-3.72.201501271240.tar.gz | grep -Fa 'if(t->m_image.width() != cl->width && t->m_image.height() != cl->height)'
        if(t->m_image.width() != cl->width && t->m_image.height() != cl->height)
+       if(t->m_image.width() != cl->width && t->m_image.height() != cl->height)


OK: patch applied

Comment 2 Sönke Schwardt-Krummrich

2015-02-25 14:47:28 CET

OK: iTALC still works
??: was still unable to trigger the segfault
OK: XML changelog
OK: debian changelog
OK: package built

Comment 3 Sönke Schwardt-Krummrich

2015-02-27 15:18:34 CET

UCS@school 3.2 R2 v3 has been released:
http://docs.univention.de/release-notes-ucsschool-3.2R2v3-de.html

If this error occurs again, please use "Clone This Bug".