Launchpad has imported 17 comments from the remote bug at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38292.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2008-11-27T16:57:42+00:00 Matthias Klose wrote: seen with a profiled build (make profile-opt PROFILE_TASK='$(srcdir)/Lib/test/regrtest.py') building python-3.0rc3 on i486-linux-gnu. Using pybench as the PROFILE_TASK doesn't show this bug). Seen PR22471, but this one was reported long ago. What other information should be provided for this kind of report? gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O2 -Wall -Wstrict-prototypes -fprofile-use -I. -IInclude -I../Include -DPy_BUILD_CORE -o Modules/config.o Modules/config.c ../Python/thread.c: In function 'PyThread_acquire_lock': ../Python/thread.c:419: error: corrupted profile info: number of executions for edge 16-3 thought to be -1 ../Python/thread.c:419: error: corrupted profile info: number of executions for edge 16-17 thought to be 5657524 make[3]: *** [Python/thread.o] Error 1 Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/0 ------------------------------------------------------------------------ On 2009-02-04T19:51:13+00:00 Jakub-gcc wrote: Subject: Bug 38292 Author: jakub Date: Wed Feb 4 19:50:58 2009 New Revision: 143937 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143937 Log: PR tree-optimization/38977 PR gcov-profile/38292 * calls.c (special_function_p): Disregard __builtin_ prefix. Modified: trunk/gcc/ChangeLog trunk/gcc/calls.c Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/1 ------------------------------------------------------------------------ On 2009-02-12T13:04:21+00:00 Matthias Klose wrote: still seen with a backport of the patch to the 4.3 branch and with trunk 20090211 on amd64. works on i486. gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fprofile-use -I. -IInclude -I../Include -DPy_BUILD_CORE -o Modules/config.o Modules/config.c ../Python/thread.c: In function 'PyThread_acquire_lock': ../Python/thread.c:423: error: corrupted profile info: profile data is not flow-consistent ../Python/thread.c:423: error: corrupted profile info: number of executions for edge 16-3 thought to be -7 ../Python/thread.c:423: error: corrupted profile info: number of executions for edge 16-17 thought to be 4920917 Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/2 ------------------------------------------------------------------------ On 2009-02-12T13:59:44+00:00 Rguenth wrote: Can you check if moving the PR38977 fix to special_function_p (handling plain fork there) fixes it? What is the contents of thread.c? Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/3 ------------------------------------------------------------------------ On 2009-02-12T14:06:19+00:00 Matthias Klose wrote: Created attachment 17286 thread.c source file Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/4 ------------------------------------------------------------------------ On 2009-02-12T14:09:39+00:00 Matthias Klose wrote: Created attachment 17287 thread_pthread.h header Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/5 ------------------------------------------------------------------------ On 2009-02-12T15:40:13+00:00 Matthias Klose wrote: a build with the suggested change doesn't show any change. --- gcc/calls.c~ 2009-02-05 09:30:24.000000000 +0100 +++ gcc/calls.c 2009-02-12 15:17:08.000000000 +0100 @@ -530,6 +530,8 @@ } else if ((tname[0] == 'q' && tname[1] == 's' && ! strcmp (tname, "qsetjmp")) + || (tname[0] == 'f' && tname[1] == 'o' + && ! strcmp (tname, "fork")) || (tname[0] == 'v' && tname[1] == 'f' && ! strcmp (tname, "vfork")) || (tname[0] == 'g' && tname[1] == 'e' Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/6 ------------------------------------------------------------------------ On 2009-02-14T09:08:38+00:00 Matthias Klose wrote: seen as well on sparc-linux, x86_64-linux and i486-linux (when built with -mcpu=i686 -mtune=i586), although triggered in different files. Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/7 ------------------------------------------------------------------------ On 2009-07-24T14:37:56+00:00 Matthias Klose wrote: same behaviour with the 4.4.1 release Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/8 ------------------------------------------------------------------------ On 2009-08-04T12:29:35+00:00 Rguenth wrote: GCC 4.3.4 is being released, adjusting target milestone. Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/9 ------------------------------------------------------------------------ On 2010-05-22T18:12:49+00:00 Rguenth wrote: GCC 4.3.5 is being released, adjusting target milestone. Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/10 ------------------------------------------------------------------------ On 2011-01-08T15:32:01+00:00 Hubicka wrote: Richard's reorg of profiling to SSA uncovered some of issues with pure&const functions that are fixed in the current mainline. Can you, please, check if that solves your problem? Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/19 ------------------------------------------------------------------------ On 2011-01-10T17:24:03+00:00 Matthias Klose wrote: I ran into bug #47248 trying to build a recent snapshot. Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/20 ------------------------------------------------------------------------ On 2011-01-19T11:43:30+00:00 Matthias Klose wrote: trying to build python 3.2~rc1, I run into: I get (with the just built python (built with -fprofile-generate): build-static$ ./python XXX lineno: 1101, opcode: 0 Fatal Python error: Py_Initialize: Unable to get the locale encoding Traceback (most recent call last): File "/home/packages/python/3.2/python3.2-3.2~rc1/build-static/../Lib/encodings/__init__.py", line 31, in <module> XXX lineno: 39, opcode: 0 Aborted The build is ok with the normal build. Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/25 ------------------------------------------------------------------------ On 2011-01-19T11:53:54+00:00 Matthias Klose wrote: no, normal python build fails too, this is reported as bug #47271. Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/26 ------------------------------------------------------------------------ On 2011-01-25T05:21:24+00:00 Matthias Klose wrote: hmm, can't set the status back to NEW, just to RESOLVED. ... a normal build of 3.2rc1 succeeds with trunk r169142 and the proposed fix for PR47271. the profiled build still fails with: gcc-4.6 -pthread -c -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fprofile-use -I. -IInclude -I../Include -DPy_BUILD_CORE -o Python/bltinmodule.o ../Python/bltinmodule.c ../Python/bltinmodule.c: In function 'builtin___build_class__': ../Python/bltinmodule.c:40:23: warning: variable 'nbases' set but not used [-Wunused-but-set-variable] ../Python/bltinmodule.c: In function 'builtin_exec': ../Python/bltinmodule.c:769:9: warning: variable 'plain' set but not used [-Wunused-but-set-variable] gcc-4.6 -pthread -c -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fprofile-use -I. -IInclude -I../Include -DPy_BUILD_CORE -o Python/ceval.o ../Python/ceval.c ../Python/ceval.c: In function 'PyEval_RestoreThread': ../Python/ceval.c:4472:1: error: corrupted profile info: profile data is not flow-consistent ../Python/ceval.c:4472:1: error: corrupted profile info: number of executions for edge 4-5 thought to be 2002859 ../Python/ceval.c:4472:1: error: corrupted profile info: number of executions for edge 4-1 thought to be -9 make[3]: *** [Python/ceval.o] Error 1 Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/28 ------------------------------------------------------------------------ On 2011-01-25T09:20:23+00:00 Manu-gcc wrote: (In reply to comment #15) > hmm, can't set the status back to NEW, just to RESOLVED. ... > You have to use your gcc account (I think). Reply at: https://bugs.launchpad.net/gcc/+bug/598462/comments/30 ** Changed in: gcc Status: New => Confirmed ** Changed in: gcc Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/598462 Title: [PR38292] corrupted profile info with -O[23] -fprofile-use -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
