A pull request of an upstream fix to the dcfldd project has been
submitted:
https://github.com/resurrecting-open-source-projects/dcfldd/pull/24
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https://bugs.launchpad.net/bugs/2033405
...and possibly wrap the above in:
#ifdef __powerpc__
...
#endif
so it's only used on POWER?
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Title:
MongoDB Memory corruption
To manage notif
I'll note that the LD_PRELOAD interposer library is only needed for
binaries that are already compiled and you want to override the
pthread_mutex_lock() routine. If you can recompile your source, then
you can place the interposer directly into your source and there is no
need for LD_PRELOADing any
gdb shows the abort is from the shim library too:
bergner@ampere:~$ gdb -q ./a.out
Reading symbols from ./a.out...(no debugging symbols found)...done.
(gdb) set environment LD_PRELOAD=./libbar.so.1
(gdb) run
Starting program: /home/bergner/a.out
[Thread debugging using libthread_db enabled]
Using
When I add the abort and use your C++ test case, I see the abort:
bergner@ampere:~$ cat pthread_mutex_lock.c
#include
#include
#define PTHREAD_MUTEX_NO_ELISION_NP 512
extern int __pthread_mutex_lock (pthread_mutex_t *);
int
pthread_mutex_lock (pthread_mutex_t *mutex)
{
abort();
mutex->__d
The following might override the HTM lock elision. Can someone try it
to see if it works?
bergner@ampere:~$ cat pthread_mutex_lock.c
#include
#define PTHREAD_MUTEX_NO_ELISION_NP 512
extern int __pthread_mutex_lock (pthread_mutex_t *);
int
pthread_mutex_lock (pthread_mutex_t *mutex)
{
mutex-
I minimized re.c down to a small test case and it looks like a false
positive on the array bounds check. Talking with Jakub, he said that
-Warray-bounds has lots of false positives, so I think either removing
the use of -Werror=array-bounds or using -O2 as permanent fixes for this
is probably best
Here is a minimal test case extracted from swsusp_asm64.s:
bergner@genoa:~/binutils/BUGS$ cat tlbie.s
.text
tlbie %r4
bergner@genoa:~/binutils/BUGS$
/home/bergner/binutils/build/binutils-2_25/gas/as-new -a64 -mpower7 tlbie.s
tlbie.s: Assembler messages:
tlbie.s:2: Error: missin
I have the problem recreated. Debugging it now.
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Title:
4.0 kernel build failure on ppc64el
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Verified fixed in gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04).
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Title:
Please incorporate gcc 4.8 revision 209515
To manage notifications ab
Verified in gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04) too.
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https://bugs.launchpad.net/bugs/1322287
Title:
HTM __builtin_ttest rtl expansion uses wrong shift amount
To manage not
Verified in gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04) too.
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Title:
ABI incompatibility between POWER and Z HTM builtins and intrinsics
To
Sorry, verified with "gcc version 4.9.1 (Ubuntu 4.9.1-16ubuntu6)".
** Tags removed: verification-needed
** Tags added: verification-done
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Title:
Sorry, verified with "gcc version 4.9.1 (Ubuntu 4.9.1-16ubuntu6)".
** Tags removed: verification-needed
** Tags added: verification-done
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Title:
I can verify that this is fixed.
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Title:
ABI incompatibility between POWER and Z HTM builtins and intrinsics
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I can verify this is fixed.
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Title:
HTM __builtin_ttest rtl expansion uses wrong shift amount
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Public bug reported:
There is a semi-latent bug for the HTM ttest pattern used with the
__builtin_ttest() builtin. This is supposed to expand to a tabortwci.
instruction which sets cr0 and then some code that copies the cr0 value
into a gpr and then shifts and masks it into the lowest 2 bits in t
Public bug reported:
The IBM XL team defined a set of HTM intrinsic functions that were supposed
to be API compatible across the XL and GCC compilers on both Power and S390.
PR61193 describes an issue where the functions that begin a transaction
are incompatible. The Power intrinsics return non-z
How does this compare to the test results on BE?
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https://bugs.launchpad.net/bugs/1276262
Title:
Many tests of Boost v1.54 fail
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Can you try with -mno-vsx and/or -fno-tree-vectorize? We have a bug
http://gcc.gnu.org/PR47862 that causes data corruption when vectorizing
and I can kind of see that sort might have a loop that might be hit by
this.
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