https://bugs.llvm.org/show_bug.cgi?id=44281
Bug ID: 44281
Summary: clang frontend segfault when multiple make jobs
running concurrently
Product: clang
Version: 9.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: jeff.lina...@gmail.com
CC: llvm-bugs@lists.llvm.org, neeil...@live.com,
richard-l...@metafoo.co.uk
Created attachment 22933
--> https://bugs.llvm.org/attachment.cgi?id=22933&action=edit
clang concurrent make segfault output
I think clang-9 appears to be trying to execute a command called "Segmentation
fault (core dumped)" but I don't see a core file anywhere (even with ulimit -c
unlimited) Workaround is to just run make without -j so I think it has
something to do with the frontend receiving some sort of signal when multiple
processes are kicked off. I have no better idea what's going on without the
core file so here's my source code and steps to reproduce:
On Manjaro Linux 4.19.85 and clang 9.0.0:
$ git clone https://github.com/jeffythedragonslayer/lipton-tarjan.git
$ cd lipton-tarjan
$ make -j 16
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