My clothing textures did not load. KDU errors

[Dan-Linden]

Environment

Second Life Release 7.2.0.16729091892 (64bit)

Full Environment

Second Life Release 7.2.0.16729091892 (64bit)
Release Notes

You are at 130.1, 154.6, 24.6 in Bug Island 2 located at simhost-0b783bbd88a0f0f28.agni
SLURL: http://maps.secondlife.com/secondlife/Bug%20Island%202/130/155/25
(global coordinates 260,482.0, 249,499.0, 24.6)
Second Life Server 2025-04-24.14648572313
Release Notes

CPU: Intel(R) Core(TM) i7-5930K CPU @ 3.50GHz (3491.91 MHz)
Memory: 32610 MB
OS Version: Microsoft Windows 10 64-bit (Build 19045.6093)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: NVIDIA GeForce GTX 1080/PCIe/SSE2

Windows Graphics Driver Version: 32.0.15.6590
OpenGL Version: 4.6.0 NVIDIA 565.90

Window size: 1757x1385
Font Size Adjustment: 96pt
UI Scaling: 1
Draw distance: 128m
Bandwidth: 3000kbit/s
LOD factor: 1.375
Render quality: 3
Texture memory: 8192MB
Disk cache: Max size 1638.4 MB (1.9% used)

J2C Decoder Version: KDU v7.10.4
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.24.2 / OpenAL Community / OpenAL Soft: OpenAL Soft
Dullahan: 1.14.0.202408091639
CEF: 118.4.1+g3dd6078+chromium-118.0.5993.54
Chromium: 118.0.5993.54
LibVLC Version: 3.0.21
Voice Server Version: Vivox 4.10.0000.32327.5fc3fe7c.5942f08

Packets Lost: 0/614 (0.0%)
August 04 2025 15:42:44

Description

My avatar clothing remained gray and the log has several KDU errors, which is likely related:

2025-08-04T22:30:20Z WARNING #Texture# newview/lltexturefetch.cpp(2334) LLTextureFetchWorker::callbackDecoded : DECODE FAILED: 910988a2-0d8f-82e9-c8c8-ab1fcfa32a1f Discard: 6, reason: LLKDUMessageError::flush()
2025-08-04T22:30:20Z WARNING #APR# llcommon/llapr.cpp(236) _ll_apr_warn_status : APR: C:\\a\\viewer\\viewer\\indra\\llcommon\\llapr.cpp:641 The system cannot find the file specified.  
2025-08-04T22:30:20Z WARNING #APR# llcommon/llapr.cpp(642) LLAPRFile::remove :  Attempting to remove filename: C:\\Users\\tester\\AppData\\Local\\SecondLife\\texturecache\\9\\910988a2-0d8f-82e9-c8c8-ab1fcfa32a1f.texture
2025-08-04T22:30:20Z INFO # llkdu/llimagej2ckdu.cpp(188) LLKDUMessage::put_text : KDU Error: Kakadu Core Error:\n
2025-08-04T22:30:20Z INFO # llkdu/llimagej2ckdu.cpp(188) LLKDUMessage::put_text : KDU Error: Attempting to access a non-existent resolution level within some tile-component.  Problem almost certainly caused by trying to discard more resolution levels than the number of DWT levels used to compress a tile-component.

Reproduction steps

1. Logged in
2. May have tabbed to another window, but I don't know if this is a trigger for the bug.
3. Looked at my avatar after a few minutes

Observed: Much of my clothing is still gray.

clothing texture did not load SecondLife.log

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[Dan-Linden]

I'm unable to reproduce this again. If the SecondLife.log does not give a good hint about the bug trigger then this issue can be closed.

[kylelinden]

Timeboxed review of logs and ok to close if nothing obviously wrong.

[akleshchev]

I have a suspicion it's related to:

LLViewerTexture::updateClass : Viewer was backgrounded for 60s, freeing up video memory.

That thing works in main thread, textures normally get processed in texture threads, it's possible textures were forcefully scaled down and cleared while KDU was trying to handle it.