[NEEDS INFO] Loading saved game causes crash

[Ian O]

I'm running a debug build of r13861. I have 2 saved games (will be attached) that are simple games (created in under 20 minutes, a few buildings, a few peasants, not much else). Both reliably cause 0ad to crash during the loading process. A log of the relevant program output and the subsequent stack trace is attached as well.

Let me know if there's anything else I can give you that would help.

[Ian O]

Save #1 that causes crash

[Ian O]

The second saved game is too large to attach. I can email it or upload it somewhere else if it is needed.

Also, just to be clear: These are the only two saves I have and they both cause crashes. I have yet to successfully load a saved game.

[Ian O]

Crash log of running gdb pyrogenesis_dbg and trying to load saved game.

[Ian O]

I'm running ubuntu, my command prompt asside. Here's uname -rv output:

3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012

[Ian O]

Philip` in IRC noted that the crash-log.txt output indicates that it crashes trying to load: "binaries/data/mods/public/art/textures/skins/gaia/slab_temperate_metal_spec.png"

Upon inspection, this png was indeed corrupted. Deleting it and then svn up-ing to get a fresh copy fixed the image corruption issue.

Then, when I start up pyrogenesis_gdb and try to load the attached saved game a new crash occurs (a SIGABRT). The dump is attached ("crash-log-2.txt").

[Ian O]

Crash log 2 (possibly completely unrelated to the png issue, but I am not sure)

[Ian O]

All 286 tests pass when running:

./binaries/system/test_dbg

[historic_bruno]

The first error in your last log is

ERROR: Deserialization failed: Deserialize_OutOfBounds

which typically means you're trying to load a saved game from an older version of the game. It shouldn't cause a crash, but it's probably not a code path that gets much testing in debug builds.

I would be interested to know if that actually is the case, whether it's a reproducible crash with outdated saves, whether you could get a crash like that with a saved game matching the version of the game's build, and also whether the crash occurs with the same saved game in release builds.

[Ian O]

Hi historic_bruno. This occurred while loading saved games created with the same version of the game that was crashing, not from games saved by older versions.

[historic_bruno]

Thanks for the reply :) Does the crash also occur in release builds? Can you give some details about your compiler, and if you built Spidermonkey (update-workspaces.sh without --with-system-mozjs185) or if it's from a package?

[Ian O]

Compiler: The game was compiled with gcc 4.6.4 on ubuntu 12.04. Will verify when I get home, but it should be the default ubuntu 12.04 compiler (gcc 4.6.3 I think). I'll verify in a few hours.

Spidermonkey: I did not specify the --with-system-mozjs185 flag when I ran update-workspaces.sh

Release build: I can try a release build over the weekend and report back. I haven't tried this yet.

[historic_bruno]

How did it go?