Illegal Instruction when running byte operations in ghci
On a Debian armel machine I started ghci through cabal repl in bytes-0.15.2 an run the following commands, which reproducibly (for me) run into a crash:
> :m Data.Word Data.Binary.Put Data.Bits Data.Bytes.Put
> runPut $ Data.Bytes.Put.putWord8 1
"\SOH"
-- Exactly the same again:
> runPut $ Data.Bytes.Put.putWord8 1
"Illegal instructionUsing Data.Binary.Put.putWord8 instead of Data.Bytes.Put.putWord8 doesn't lead to a crash, even though the only difference between the two is that the bytes version is an instance method.
Using an installed version of bytes instead of compiling it with GHCi (in my case with cabal repl) doesn't crash.
Some strange reactions during debugging this lead me to believe, that running some calculations between the two shown above can avert the crash, but I couldn't figure out, what exactly had to be done.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.10.3 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | GHCi |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |
Activity
added GHCi Tbug Trac import labels
Which version of llvm do you have installed? llvm-3.5.0 is known to be broken, and llvm-3.5.2 is known to be working.
Trac metadata
Trac field Value Related - → #8896 (closed), #10375 (closed), #10863 (closed), #10969 (closed) According to the Debian buildd log llvm-3.5.2 was used.
added Pnormal label
