View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001948 | Industrial-Craft² | E-Net, cabling, storage/transformer blocks | public | 2016-08-01 02:28 | 2016-08-10 17:57 |
| Reporter | DoughnutDev | Assigned To | Aroma1997 | ||
| Priority | immediate | Severity | crash | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| OS | Windows | OS Version | 10 | ||
| Summary | 0001948: at ic2.core.energy.leg.EnergyNetLocalLeg.tickStart(EnergyNetLocalLeg.java:162) | ||||
| Description | Everytime I join this happens http://hastebin.com/ehirotumij.coffee | ||||
| Steps To Reproduce | Just have a MFE, LV-Transformer, MV-Transformer, Macerator, Compressor, and Furnace | ||||
| Tags | No tags attached. | ||||
| Minecraft Version | 1.10.2 | ||||
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So I did some research on the issue and it seems it is Mekanism. After I added it. The issue started. |
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I too am having this issue. I wanted to reference the same issue that was mentioned in Mekanism. https://github.com/aidancbrady/Mekanism/issues/3580 Oddly, I am only getting this crash in one or two particular chunks right now. At a base of one of my players if any player enters either of these chunks the server crashes. If we avoid those chunks the server runs as intended. |
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Judging from what I'm seeing after decompiling and inspecting the source code, Mekanism is (indirectly, since it's private) invoking the markBlockForUpdate() method of EnergyNetLocalLeg while the tickStart() method is running, which involves iteration over blocksToUpdate. Adding something to that set while iteration is going on will result in the ConcurrentModificationException. I'm trying to figure out where that invocation happens, though. You've got addTileEntity synchronized, for example, and tickStart() is also sync'd. I'm rusty with async Java, but you might be able to prevent this if you copy the contents from blocksToUpdate into a new HashSet inside tickStart(), then iterate over that. Any new update requests can go into blocksToUpdate for the next tick. |
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Setting this B:BlacklistIC2Power=false to B:BlacklistIC2Power=true gets rid of the crash. |
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DoughnutDev, you sir are a life saver. This has been causing issues on my server for a few weeks now with endless problems. Thanks for the help! |
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I updated Mekanism and IC2 with their latest updates and reset my map and no longer get this issue. |
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The issues weren't marked as duplicates, which is why I didn't resolve this issue here. I tentatively fixed it. It now logs an error message in the log file. I would appreciate, if someone could give me back a log file of where it would normally happen. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2016-08-01 02:28 | DoughnutDev | New Issue | |
| 2016-08-01 18:08 | DoughnutDev | Note Added: 0004655 | |
| 2016-08-02 19:59 | Redlotus99 | Note Added: 0004663 | |
| 2016-08-02 19:59 | Redlotus99 | Note Edited: 0004663 | |
| 2016-08-02 20:11 | Redlotus99 | Note Edited: 0004663 | |
| 2016-08-02 21:13 | etherealflux | Note Added: 0004664 | |
| 2016-08-02 21:13 | etherealflux | Note Edited: 0004664 | |
| 2016-08-02 21:17 | etherealflux | Note Edited: 0004664 | |
| 2016-08-02 21:38 | DoughnutDev | Note Added: 0004665 | |
| 2016-08-10 13:10 | Kris1432 | Note Added: 0004693 | |
| 2016-08-10 13:56 | Redlotus99 | Note Added: 0004694 | |
| 2016-08-10 17:56 | Aroma1997 | Relationship added | duplicate of 0001923 |
| 2016-08-10 17:57 | Aroma1997 | Note Added: 0004695 | |
| 2016-08-10 17:57 | Aroma1997 | Status | new => resolved |
| 2016-08-10 17:57 | Aroma1997 | Resolution | open => fixed |
| 2016-08-10 17:57 | Aroma1997 | Assigned To | => Aroma1997 |
