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| 14:31.15 | buffer_overflow | hello does anybody know who owns pocklips server |
| 14:32.55 | buffer_overflow | some of the recently added files it tries to download are causing buffer overflow and crashing the program |
| 14:37.28 | blast007 | strange |
| 14:37.41 | blast007 | can you elaborate on the issue? |
| 14:37.54 | buffer_overflow | well... I ran it in debug mod |
| 14:37.59 | blast007 | (operating system, version of the game, was it one you compiled yourself?) |
| 14:38.45 | buffer_overflow | http://pastebin.com/WUYHfhL4 |
| 14:39.02 | buffer_overflow | I have a linux ubuntu operating system, I have version 2.4.2, yes I compiled it myself |
| 14:39.06 | buffer_overflow | I can connect and play on all the other servers |
| 14:39.22 | blast007 | which version of ubuntu and what architecture? |
| 14:39.23 | buffer_overflow | I used to be able to play on pocklips fine |
| 14:39.30 | buffer_overflow | I think this line is the suspect: Scaling texture from 6484x3164 to 512x512 |
| 14:40.09 | buffer_overflow | ubuntu 9.10 2.6.31-22-generic #67-Ubuntu SMP Sat Oct 16 19:10:07 UTC 2010 i686 GNU/Linux |
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| 14:43.36 | buffer_overflow | woah that time it locked up my screen |
| 14:44.15 | buffer_overflow | it connects to the server, it shows the map, it gets the UDP things, and then it says "Downloading files" |
| 14:44.23 | buffer_overflow | then the whole thing crashes and prints a backtrace in my terminal |
| 14:45.07 | buffer_overflow | Scaling texture from 6484x3164 to 512x512 |
| 14:45.11 | buffer_overflow | pretty sure it's that line |
| 14:45.20 | blast007 | can you post the backtrace to a pastebin service such as http://pastie.org/ ? |
| 14:45.27 | buffer_overflow | I did, with debug |
| 14:45.43 | blast007 | oh sorry, missed that URL |
| 14:45.49 | buffer_overflow | np |
| 14:46.05 | buffer_overflow | Scaling texture from 6484x3164 to 512x512 |
| 14:46.05 | buffer_overflow | Server BZDB change blocked: 'poll' = '152651024' |
| 14:46.05 | buffer_overflow | *** buffer overflow detected ***: ./src/bzflag/bzflag terminated |
| 14:46.05 | buffer_overflow | ======= Backtrace: ========= |
| 14:46.12 | buffer_overflow | right after that gigantic texture it bails |
| 14:46.27 | buffer_overflow | can I disable downloading textures or something |
| 14:47.04 | blast007 | I think that's an option in the cache settings menu |
| 14:47.34 | blast007 | any reason you're using 9.10 yet? Ubuntu stopped supporting that release in 2011. |
| 14:47.39 | buffer_overflow | ooo cache size 32MB |
| 14:47.43 | buffer_overflow | maybe I can just make it bigger |
| 14:48.10 | blast007 | might help, but probably not. that's just the disk cache size. |
| 14:48.37 | buffer_overflow | didn't help |
| 14:48.47 | buffer_overflow | I turned off automatic downloads, it downloaded anyways, and crashed |
| 14:48.56 | buffer_overflow | maybe I can set my graphics mode to no textures ... |
| 14:49.01 | blast007 | can you run it within gdb and get a backtrace that way? |
| 14:49.08 | buffer_overflow | I tried, it locked up my entire screen |
| 14:49.11 | buffer_overflow | I will try again |
| 14:49.24 | blast007 | run it from an SSH session to the box if you can, or run it windowed |
| 14:49.34 | blast007 | (and turn off the mouse grab feature) |
| 14:49.47 | blast007 | think it's called 'confine mouse' |
| 14:49.59 | buffer_overflow | got it |
| 14:50.05 | blast007 | k |
| 14:50.30 | buffer_overflow | http://pastebin.com/LcgkYjTQ |
| 14:50.36 | buffer_overflow | what do I type into gdb to get more info |
| 14:51.20 | blast007 | type 'bt' |
| 14:51.58 | buffer_overflow | http://pastebin.com/M6MMKtTq |
| 14:53.26 | blast007 | hmm... |
| 14:54.23 | buffer_overflow | sprintf? wtf |
| 14:54.55 | buffer_overflow | crashing on the scoreboard renderer. |
| 14:55.14 | buffer_overflow | <PROTECTED> |
| 14:59.04 | buffer_overflow | hmm now it works and I can connect. |
| 14:59.51 | blast007 | I guess I'll have to try duplicating that later |
| 15:00.04 | buffer_overflow | I can't even duplicate it now :/ |
| 15:00.12 | blast007 | did you turn downloads back on? |
| 15:00.32 | buffer_overflow | I added a printf before that sprintf line so I could see what "n" was |
| 15:00.39 | buffer_overflow | I recompiled, and it worked and didn't crash |
| 15:00.50 | buffer_overflow | I took out my printf, and recompiled back to clean, and it still works |
| 15:00.55 | blast007 | heh |
| 15:01.08 | buffer_overflow | seems like there was some jacked up tkratio being sprintf'ed into that 10 size array that was overflowing |
| 15:01.47 | buffer_overflow | but the %4.2 should restrict it to less than 10 |
| 15:02.21 | blast007 | or memory was corrupted/overwritten somewhere else and causing other areas to behave oddly ;) |
| 15:04.34 | buffer_overflow | or when i recompiled it moved the binary to a part of the disk unaffected by the cosmic rays |
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| 15:28.32 | BulletCatcher | As long as you are compiling BZFlag yourself, you might as well use the latest development version, which you can check out with this command: |
| 15:28.35 | BulletCatcher | git clone -b v2_4_x https://github.com/BZFlag-Dev/bzflag-import-2.git |
| 15:28.51 | BulletCatcher | You may need to install the "git" package first. |
| 15:30.48 | BulletCatcher | This version has at least one change that is meant to stop Planet MoFo crashes. |
| 15:40.08 | BulletCatcher | e.g., 96f7172 in that Git repo (the same as svn r22678) |
| 15:48.13 | buffer_overflow | ok i'll pull that |
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