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[BUG-134150] Land at 16,000m up in the air? #2190

Open sl-service-account opened 7 years ago

sl-service-account commented 7 years ago

Steps to Reproduce

Exploring some regions

Actual Behavior

I noticed land that goes way up in the air, almost like a giant tower. The location is in Mauve protected land, at 16,386m. When I try to land on it it glitches

Expected Behavior

I don't know but all I know it that this can't be normal

Other information

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Related

Original Jira Fields | Field | Value | | ------------- | ------------- | | Issue | BUG-134150 | | Summary | Land at 16,000m up in the air? | | Type | Bug | | Priority | Unset | | Status | Accepted | | Resolution | Accepted | | Created at | 2017-08-18T00:52:19Z | | Updated at | 2017-08-18T17:17:01Z | ``` { 'Business Unit': ['Platform'], 'Date of First Response': '2017-08-18T04:32:18.233-0500', 'ReOpened Count': 0.0, 'Severity': 'Unset', 'System': 'SL Simulator', 'Target Viewer Version': 'viewer-development', 'What just happened?': ' I noticed land that goes way up in the air, almost like a giant tower. The location is in Mauve protected land, at 16,386m. When I try to land on it it glitches', 'What were you doing when it happened?': 'Exploring some regions', 'What were you expecting to happen instead?': "I don't know but all I know it that this can't be normal ", 'Where': 'Mauve, Protected Land (104, 7, 16386)', } ```
sl-service-account commented 7 years ago

Chaser Zaks commented at 2017-08-18T09:32:18Z, updated at 2017-08-18T09:51:58Z

Terrain appears to be corrupted, currently in the process of dumping a wireshark copy of the LayerData. Server does not seem to be affected and returns correct data to Physics, Path Finding and llGround(vector offset) Also, I am not seeing the 16,000m terrain, which means either it varies from restart, or from user to user.

Mauve_LayerData_Terrain.pcapng only contains LLSurface Mauve_LayerData_All.pcapng contains all LayerData packets SecondLife.log is the entire log file

All data is captured on the latest version of Second Life (5.0.6.326593 i686) on Linux Debian

sl-service-account commented 7 years ago

Whirly Fizzle commented at 2017-08-18T15:40:11Z

Vid for posterity: https://i.gyazo.com/c535d979401853ce721f240ad1d35be1.mp4 Never seen this glitch before. Pretty cool :D

sl-service-account commented 7 years ago

Whirly Fizzle commented at 2017-08-18T16:26:13Z

This actually looks like a case of BUG-3479.

The viewer log shows the same terrain errors:

2017-08-18T15:47:54Z WARNING: newview/llsurface.cpp(901) : LLSurface::decompressDCTPatch: Received invalid terrain packet - patch header patch ID incorrect! patches per edge 16 i 1 j 16 dc_offset 0.000000 range 128 quant_wbits 2 patchids 48
2017-08-18T15:47:54Z WARNING: newview/llsurface.cpp(901) : LLSurface::decompressDCTPatch: Received invalid terrain packet - patch header patch ID incorrect! patches per edge 16 i 0 j 16 dc_offset 0.000000 range 14336 quant_wbits 4 patchids 16
2017-08-18T15:47:54Z WARNING: newview/llsurface.cpp(901) : LLSurface::decompressDCTPatch: Received invalid terrain packet - patch header patch ID incorrect! patches per edge 16 i 1 j 16 dc_offset 0.000000 range 2104 quant_wbits 2 patchids 48
2017-08-18T15:47:54Z WARNING: newview/llsurface.cpp(901) : LLSurface::decompressDCTPatch: Received invalid terrain packet - patch header patch ID incorrect! patches per edge 16 i 28 j 3 dc_offset 2122342004927835100000000.000000 range 50688 quant_wbits 30 patchids 899
2017-08-18T15:47:54Z WARNING: newview/llsurface.cpp(901) : LLSurface::decompressDCTPatch: Received invalid terrain packet - patch header patch ID incorrect! patches per edge 16 i 1 j 16 dc_offset 0.000000 range 524 quant_wbits 2 patchids 48
2017-08-18T15:47:54Z WARNING: newview/llsurface.cpp(901) : LLSurface::decompressDCTPatch: Received invalid terrain packet - patch header patch ID incorrect! patches per edge 16 i 28 j 0 dc_offset 0.000000 range 256 quant_wbits 1 patchids 896

The viewer crash reported in BUG-3479 was fixed in March 2016 - MAINT-2969 http://hg.phoenixviewer.com/phoenix-firestorm-lgpl/rev/64eba9d90ed0