Segmentation fault in RTS' STM code on git master
On ghc 7.7 (ef786b6c, running on x86_64, Linux) I'm observing a segmentation fault in compiled code (bayes-stack-ci from https://github.com/bgamari/bayes-stack/tree/master). The crash appears to originate in the RTS while aborting a transaction,
$ gdb --args bayes-stack-ci --nodes=texts --arcs=links --topics=10 --sweeps=sweeps
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Reading symbols from /home/ben/.cabal/bin/bayes-stack-ci...(no debugging symbols found)...done.
(gdb) run
Starting program: /home/ben/.cabal/bin/bayes-stack-ci --nodes=texts --arcs=links --topics=10 --sweeps=sweeps
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffedeff700 (LWP 32590)]
[New Thread 0x7fffed6fe700 (LWP 32591)]
Read 0 stopwords
Read 2 arcs, 3 nodeItems
Starting sampler...
Burning in for 100 samples
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffed6fe700 (LWP 32591)]
0x00007ffff4094743 in merge_read_into () from /opt/exp/ghc/root-7.7/lib/ghc-7.7.20121009/rts-1.0/libHSrts_thr-ghc7.7.20121009.so
(gdb) bt
#0 0x00007ffff4094743 in merge_read_into () from /opt/exp/ghc/root-7.7/lib/ghc-7.7.20121009/rts-1.0/libHSrts_thr-ghc7.7.20121009.so
#1 0x00007ffff40949db in stmAbortTransaction () from /opt/exp/ghc/root-7.7/lib/ghc-7.7.20121009/rts-1.0/libHSrts_thr-ghc7.7.20121009.so
#2 0x00007ffff40a8c3b in stg_atomically_frame_info () from /opt/exp/ghc/root-7.7/lib/ghc-7.7.20121009/rts-1.0/libHSrts_thr-ghc7.7.20121009.so
#3 0x0000000000000000 in ?? ()
Trac metadata
Trac field | Value |
---|---|
Version | 7.7 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Runtime System |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |