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Author Topic: Assist CRASH with segfault in Linux after successful login  (Read 5136 times)

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Offline ultr

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Assist CRASH with segfault in Linux after successful login
« on: Tuesday, March 22, 2016, 22:21:31 PM »
Since yesterday Assist crashes with a segfault in Linux.
Application starts normally, but crashes after a successful login.
It worked perfectly several days ago (I played on 19.03.2016).
I haven't updated any related or system library since the last time it was working.

dmesg:
Code: [Select]
[14358.835538] 25Assist[12561]: segfault at f4452298 ip 00000000f6ff55de
    sp 00000000f4452290 error 7 in libgdk_pixbuf-2.0.so.0.3100.1[f6fed000+26000]

gdb:
Code: [Select]
[New Thread 0xf4cc0b40 (LWP 7285)]
[New Thread 0xf4cafb40 (LWP 7286)]
[New Thread 0xf4c9eb40 (LWP 7287)]
[Thread 0xf4cafb40 (LWP 7286) exited]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xf4c9eb40 (LWP 7287)]
0xf782f5de in load_from_stream (loader=loader@entry=0x876a550,
    stream=stream@entry=0xf4907fc8, cancellable=0x0, error=0xf48338cc) at
    gdk-pixbuf-io.c:1433

Debian 8 Jessie (stable), x86_64
« Last Edit: Wednesday, March 23, 2016, 14:13:20 PM by ultr »

Offline Possessed

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Re: Assist crashes with segfault in Linux after successful login
« Reply #1 on: Wednesday, March 23, 2016, 01:35:09 AM »
« Last Edit: Wednesday, March 23, 2016, 01:39:56 AM by Possessed »
These things I have spoken unto you, that in me ye might have peace. In the world ye shall have tribulation: but be of good cheer; I have overcome the world.
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Offline ultr

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Re: Assist crashes with segfault in Linux after successful login
« Reply #2 on: Wednesday, March 23, 2016, 07:56:47 AM »
Debian supports multiarch now, and I have all required i386 libraries installed. As I said, it worked perfectly just some days ago.
Of course I tried reinstalling the Assist Client as well.

Is there source code for the Assist Client available, so I can debug this?

Offline ultr

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Re: Assist crashes with segfault in Linux after successful login
« Reply #3 on: Wednesday, March 23, 2016, 14:12:22 PM »
libgdk_pixbuf has many reports online for bugs regarding support for jpeg2000 images with transparency.
Maybe (just maybe) such image is now sent to the client after logon (though Wireshark does not report any) or maybe some command triggers its load from the local Assist's resources.

That's all I could find so far. And without the source code I cannot debug this.

Offline teddy_grizzly_bear

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Re: Assist CRASH with segfault in Linux after successful login
« Reply #4 on: Wednesday, March 23, 2016, 17:57:36 PM »
I've got a feeling it might have something to do with "show poll" critical error as that's the most recent "change" to Assist - the polls section was never really meant for polls with so many choices.

The poll went live Tuesday evening and it damn well suites the timeline as well.

Not entirely sure, though.
<image removed due to imgur stuff - probably for the best>

"Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true." Bertrand Russell

Offline ronski

Re: Assist CRASH with segfault in Linux after successful login
« Reply #5 on: Wednesday, March 23, 2016, 18:00:29 PM »
I've got a feeling it might have something to do with "show poll" critical error as that's the most recent "change" to Assist - the polls section was never really meant for polls with so many choices.

The poll went live Tuesday evening and it damn well suites the timeline as well.

Not entirely sure, though.
if it's about this, I make the poll to expire tomorrow

Offline Pipez0r

Re: Assist CRASH with segfault in Linux after successful login
« Reply #6 on: Thursday, March 24, 2016, 04:53:30 AM »
I get also errors because of the poll but it doesnt crash my assist. Well Im nowadays using Windows.

Offline ronski

Re: Assist CRASH with segfault in Linux after successful login
« Reply #7 on: Thursday, March 24, 2016, 05:19:13 AM »
I get also errors because of the poll but it doesnt crash my assist. Well Im nowadays using Windows.
It doesn't crash the mac version either, but the error is shown every time Assist is launched. I'll close the poll today to make the error disappear.

Offline ultr

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Re: Assist CRASH with segfault in Linux after successful login
« Reply #8 on: Thursday, March 24, 2016, 16:39:12 PM »
I guess it was that poll, because the issue is no more now.
Thanks.

Offline teddy_grizzly_bear

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Re: Assist CRASH with segfault in Linux after successful login
« Reply #9 on: Friday, March 25, 2016, 06:04:03 AM »
I guess it was that poll, because the issue is no more now.
Thanks.
See, ronski? Don't do such long polls anymore! :)
<image removed due to imgur stuff - probably for the best>

"Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true." Bertrand Russell

Offline ronski

Re: Assist CRASH with segfault in Linux after successful login
« Reply #10 on: Friday, March 25, 2016, 06:50:49 AM »
See, ronski? Don't do such long polls anymore! :)
:sign_shithappens:

It would be interesting to know which part of it failed, since multivote poll could be useful in future as well. Was it the amount of options (20, Assist showed 10) or the multivote itself?

Offline Petrol

Re: Assist CRASH with segfault in Linux after successful login
« Reply #11 on: Friday, March 25, 2016, 08:26:23 AM »
First and the most important think that failed is RealBasic.

Offline teddy_grizzly_bear

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Re: Assist CRASH with segfault in Linux after successful login
« Reply #12 on: Friday, March 25, 2016, 16:09:04 PM »
See, ronski? Don't do such long polls anymore! :)
Since I didn't write the code (and if I'm honest, I've never looked at it), I really don't know...
<image removed due to imgur stuff - probably for the best>

"Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true." Bertrand Russell

 

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