April 03, 2017 Issue in _d_dso_registry on Linux when unloading DSO's | ||||
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I'm running into this issue when I compile DRuntime in debug. In sections_elf_shared.d, there's an assert on line 454 (assert(pdso._tlsSize == _tlsRanges.back.length);). Because of this line, I get an assertion thrown, where the actual issue is that _tlsRanges is empty and thus has no "back". The GC has been finalized at this point in the program and can't actually allocate the assertion, so I end up with a segfault. The whole bit of code looks like this: assert(pdso._tlsSize == _tlsRanges.back.length); _tlsRanges.popBack(); assert(pdso == _loadedDSOs.back); _loadedDSOs.popBack(); Right now my "fix" looks like this: if(!_tlsRanges.empty) { assert(pdso._tlsSize == _tlsRanges.back.length); _tlsRanges.popBack(); } assert(pdso == _loadedDSOs.back); _loadedDSOs.popBack(); I have no idea if this is safe to do since I am not familiar with this code, but at least I don't have a segfault anymore. Can anyone help me figure out what is going on? |
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