444F54 => 444F44

That's a single-bit flip.  Bad memory, perhaps?


-----Original Message-----
[] On Behalf Of O. Hartmann
Sent: Tuesday, July 01, 2014 8:08 AM
To: Dimitry Andric
Cc: Adrian Chadd; FreeBSD CURRENT
Subject: Re: [CURRENT]: weird memory/linker problem?

Am Mon, 23 Jun 2014 17:22:25 +0200
Dimitry Andric <> schrieb:

> On 23 Jun 2014, at 16:31, O. Hartmann <> wrote:
> > Am Sun, 22 Jun 2014 10:10:04 -0700
> > Adrian Chadd <> schrieb:
> >> When they segfault, where do they segfault?
> ...
> > GIMP, LaTeX work, nothing special, but a bit memory consuming 
> > regrading GIMP) I tried updating the ports tree and surprisingly the 
> > tree is left over in a unclean condition while /usr/bin/svn segfault 
> > (on console: pid 18013 (svn), uid 0: exited on signal 11 (core dumped)).
> > 
> > Using /usr/local/bin/svn, which is from the devel/subversion port, 
> > performs well, while FreeBSD 11's svn contribution dies as described. It 
> > did not hours ago!
> I think what Adrian meant was: can you run svn (or another crashing
> program) in gdb, and post a backtrace?  Or maybe run ktrace, and see 
> where it dies?
> Alternatively, put a core dump and the executable (with debug info) in 
> a tarball, and upload it somewhere, so somebody else can analyze it.
> -Dimitry

It's me again, with the same weird story.

After a couple of days silence, the mysterious entity in my computer is back. 
This time it is again a weird compiler message of failure (trying to 

c++  -O2 -pipe -O3 -O3 
c++ -I/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/include
-I/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/lib/Support -I.
-fno-strict-aliasing -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd11.0\"
-DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd11.0\" -DDEFAULT_SYSROOT=\"\"
-Qunused-arguments -I/usr/obj/usr/src/tmp/legacy/usr/include -std=c++11 
-fno-exceptions -fno-rtti -Wno-c++11-extensions -c 
/usr/src/lib/clang/libllvmsupport/../../../contrib/llvm/lib/Support/Host.cpp -o 
--- GraphWriter.o --- In file included
error: use of undeclared identifier 'DOD'; did you mean 'DOT'? O << 
DOD::EscapeString(Label); ^~~ DOT 
note: 'DOT' declared here namespace DOT {  // Private functions... ^ 1 error 
*** [GraphWriter.o] Error code 1

Well, in the past I saw many of those messages, especially not found labels of 
routines in shared objects/libraries or even those "funny" misspelled messages 
shown above.

I can not reproduce them after a reboot, but as long as the system is running 
with this error occured, it is sticky. So in order to compile the OS 
successfully, I reboot.

Does anyone have an idea what this could be? Since it affects at the moment 
only one machine (the other CoreDuo has been retired in the meanwhile), it 
feels a bit like a miscompilation on a certain type of CPU.

Thanks for your patience,

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