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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0001928 | Spring engine | General | public | 2010-05-16 16:56 | 2010-05-18 01:19 | ||||
| Reporter | SirMaverick | ||||||||
| Assigned To | Kloot | ||||||||
| Priority | normal | Severity | minor | Reproducibility | sometimes | ||||
| Status | resolved | Resolution | fixed | ||||||
| Product Version | 0.81.2.1 | ||||||||
| Target Version | Fixed in Version | 0.81.0.0+git | |||||||
| Summary | 0001928: Sync error in frame 1 | ||||||||
| Description | In BA games (as spec or player) I sometimes (~5-10% of games) desync in frame 1. I'm always the only one at that time. (It seems I'm always playing same game - no mass idle units etc.) Replaying with sync debug doesn't show any differences in traces. Does not happen in CA. | ||||||||
| Tags | No tags attached. | ||||||||
| Checked infolog.txt for Errors | |||||||||
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SirMaverick (reporter) 2010-05-16 17:06 |
Uploaded 9 demos where this happens. Might this be cause by using -DMARCH_FLAG="k8"? Most (not all) players are using stock cmake-mingw32 compiled versions. |
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Kloot (developer) 2010-05-16 19:20 |
A desync right on frame 1 can be caused by: * wrong script.txt parameters generated by lobby client (these get written to the demo, so they would show up when comparing to replays from other people) * wrong base content or local mod archive changes (in both cases any decent lobby client should already flag you as desynced) * non-standard compilation flags, etc. |
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hoijui (reporter) 2010-05-17 17:27 |
spring has to be compiled with SSE1 support, but NOT with SSE2, 3, 4, ... if it is not that, it is still very very likely that it is the march flag. if not that, then maybe compiler version or other custom compile options, ... |
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SirMaverick (reporter) 2010-05-17 22:57 |
> wrong script.txt parameters generated by lobby client (these get written to the demo, so they would show up when comparing to replays from other people) Autohost game, isn't script.txt received from server? It's same in demo files (could compare to other player). > * wrong base content or local mod archive changes (in both cases any decent lobby client should already flag you as desynced) I was never desync in lobby. > * non-standard compilation flags, etc. > spring has to be compiled with SSE1 support, but NOT with SSE2, 3, 4, ... What can/does enable other sse versions? > if it is not that, it is still very very likely that it is the march flag. happens even without -DMARCH_FLAG="k8" > if not that, then maybe compiler version or other custom compile options, ... Only other flags used are -DCMAKE_BUILD_TYPE, -DAI_EXCLUDE_REGEX, -DCMAKE_INSTALL_PREFIX. |
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SirMaverick (reporter) 2010-05-17 23:04 |
[ 0] Error opening maps/paths/CenterrockV12.4144068072.pe.zip [ 0] Analyzing map accessibility [8] [ 0] Block offset: 0 of 16384 (size 8) [...] [ 0] Path cost: 16000 of 16384 (size 8) [ 0] Writing path data file... [ 0] Reading estimate path costs [ 0] Error opening maps/paths/CenterrockV12.4144068096.pe2.zip [ 0] Analyzing map accessibility [32] [ 0] Block offset: 0 of 1024 (size 32) [ 0] Block offset: 1000 of 1024 (size 32) [ 0] Path cost: 0 of 1024 (size 32) [ 0] Path cost: 1000 of 1024 (size 32) [ 0] Writing path data file... [ 0] Pathing data checksum: 00000000 Looks like the problem was that the paths directory was not writable. In this case the checksum is 0 what cased the desync. This is reproduceable. There is no desync when it is writable. |
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Kloot (developer) 2010-05-17 23:27 |
Yes, the path checksum is just the crc of the path zipfile. I'll change it so that sending a checksum of 0 (in case of a non-writable directory) will not be seen as a desync. |
| Notes |
| Issue History |
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2010-05-16 16:56 | SirMaverick | New Issue | |
| 2010-05-16 16:58 | SirMaverick | File Added: demos1.tar.bz2 | |
| 2010-05-16 16:59 | SirMaverick | File Added: demos2.tar.bz2 | |
| 2010-05-16 17:06 | SirMaverick | Note Added: 0004917 | |
| 2010-05-16 19:20 | Kloot | Note Added: 0004918 | |
| 2010-05-17 17:27 | hoijui | Note Added: 0004920 | |
| 2010-05-17 17:27 | hoijui | Status | new => resolved |
| 2010-05-17 17:27 | hoijui | Resolution | open => won't fix |
| 2010-05-17 17:27 | hoijui | Assigned To | => hoijui |
| 2010-05-17 22:57 | SirMaverick | Note Added: 0004921 | |
| 2010-05-17 22:57 | SirMaverick | Status | resolved => assigned |
| 2010-05-17 22:57 | SirMaverick | Resolution | won't fix => reopened |
| 2010-05-17 23:04 | SirMaverick | Note Added: 0004922 | |
| 2010-05-17 23:19 | Kloot | Assigned To | hoijui => Kloot |
| 2010-05-17 23:27 | Kloot | Note Added: 0004923 | |
| 2010-05-18 01:19 | Kloot | Status | assigned => resolved |
| 2010-05-18 01:19 | Kloot | Fixed in Version | => 0.81.0.0+git |
| 2010-05-18 01:19 | Kloot | Resolution | reopened => fixed |
| Issue History |