Re: [Valgrind-developers] Current upstream Valgrind gets SIGSEGV running java

[Maynard J. <may...@us...>]

On 08/16/2013 09:55 AM, Julian Seward wrote:
> 
> Maynard,
> 
> Florian landed a change last night -- r13498/r2742 -- which should fix this.
> Pls yell if it's still broken.
OK, thanks.  I'll be out for a couple weeks as of this afternoon, and so will verify the fix when I return.

-Maynard
> 
> J
> 
> On 08/14/2013 02:51 PM, Maynard Johnson wrote:
>> On 08/13/2013 03:03 PM, Florian Krohm wrote:
>>> On 08/13/2013 09:51 PM, Maynard Johnson wrote:
>>>> Using an SVN checkout done today, I get the following error when running a test java app under Valgrind:
>> Sorry, but I forgot to say yesterday that I was only seeing this error on my Intel Core 2 Duo laptop.  The current valgrind from SVN trunk worked OK on my ppc64 box.
>>
>> I'm at a different work location today and using a Sandybridge laptop (Intel Core i7) -- and oddly, I cannot reproduce the error, using the same JVM.
>>
>> -Maynard 
>>>>
>>>> [maynard@oc3431575272 myJavaStuff]$ valgrind --tool=none java ThreadLoop 1
>>>> ==18410== Nulgrind, the minimal Valgrind tool
>>>> ==18410== Copyright (C) 2002-2012, and GNU GPL'd, by Nicholas Nethercote.
>>>> ==18410== Using Valgrind-3.9.0.SVN and LibVEX; rerun with -h for copyright info
>>>> ==18410== Command: java ThreadLoop 1
>>>> ==18410== 
>>>> --18410-- VALGRIND INTERNAL ERROR: Valgrind received a signal 11 (SIGSEGV) - exiting
>>>> --18410-- si_code=1;  Faulting address: 0x11;  sp: 0x80277d490
>>>>
>>>> valgrind: the 'impossible' happened:
>>>>    Killed by fatal signal
>>>> ==18410==    at 0x380BF6BB: deepCopyIRExpr (ir_defs.c:2130)
>>>> ==18410==    by 0x380BFB14: deepCopyIRExprVec (ir_defs.c:2093)
>>>
>>> I bet that e is IRExprP__BBPTR  which is ((IRExpr*)17)  which is  0x11,
>>> the faulting address. Looks as if deepCopyIRExprVec does not handle the
>>> special expressions introduced recently. There may be other places. I
>>> haven't checked. Unless you beat me to it I'll look at fixing it tomorrow.
>>>
>>>    Florian
>>>
>>>
>>
>>
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>