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MC-8426

Crash caused by vertical wiring (half slabs / glowstone / full blocks)

To reproduce:
1. Build vertical wiring "stairs" using half-slabs (or glowstone, by some reports and full blocks MC-10469)
2. Wiring should be high enough, atleast 16 blocks total.
3. Tests show that this happens most likely when wiring is aligned along X axis.
4. Trying to input redstone signal at one of the sides (usually from where X is greater) at certain height (usually closer to the top) will crash the game.
5. If you are able to relog, you will observe invalid signal travelling downwards, as in second screenshot.

Video: http://youtu.be/AZPw2Cmm9DQ

Old description:
1. Placed the redstone torch on a side of a block in certain position.
2. The redstone torch appeared, in ON state (although it should be off because the block is powered, but usually they go off in a moment).
3. The game crashed before I could do anything else.
4. Reentered the world, torch was still ON, game crashed immediately.
5. Reentered the world, torch was OFF, and game didn't seem to crash.
6. Broke the torch, didn't seem to crash.
7. Placed it again, another crash.
Since the issue seems reproducable in certain configurations only, the world save file is attached, as well as crash reports. The torch in question is the one my player is facing as per save file. Try breaking it and placing again to reproduce.

Linked issues

MC-8229 game crash (redstone cause) Resolved MC-8458 Exception while updating neighbors Resolved MC-9051 Block-update induced infinite recursion Resolved MC-9053 Unexpected Crash Resolved MC-9411 redstone being powered when there is no power source Resolved

Attachments

Comments 31

Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-8229. If I am wrong, please go yell at Dinnerbone.

Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-8229. If I am wrong, please go yell at Dinnerbone.

Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-8229. If I am wrong, please go yell at Dinnerbone.

Regardless what the bot is saying three times:

This ticket is invalid as it relates to a modded or 3rd party client/server.
Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft.

Sorry my fault, read the wrong crash report.
Reopened.

21 more comments

Resolving as fixed.

Well, actually it still happens in 1.6 pre-release. I was playing Vechs' map "Super Hostile #08 - Nightmare Realm" and there is one area that features many traps formed by snow "slabs" which disappear upon block update. As I broke a block, it caused a mass block update that crashed me. I tried switching to Creative to see if it still happened, which it did. 14 crashes in under 10 minutes.

Quote crash report: "Description: Exception while updating neighbors"

Figured I should let you guys know, as this is listed as "resolved", and if I post the bug, it will probably be taken down as a duplicate.

Post it separately. It will help more.
How much snow did vechz place?

Well... a lot. I'd say about at least a 40x40 area, but I've played his map a couple of times in 1.5.1 and 1.4.7 and it didn't crash... not sure though.

Now posted new bug as "Crash Upon Repeated Block Update". Affects 1.6 and 1.6.1. Game mode 0 and 1 are both affected.

Kimitsu Desu

(Unassigned)

Confirmed

block, crash, redstone

Snapshot 13w04a, Snapshot 13w05a, Snapshot 13w05b, Snapshot 13w06a, Snapshot 13w07a, Snapshot 13w09a, Snapshot 13w09b

Snapshot 13w09c

Retrieved