Philippe Waroquiers af36bdd9af Fix drd assert failure for monitor cmd execution when all threads blocked in syscall ...

When all threads are blocked in a syscall, DRD_(thread_get_running_tid)()
returns (or can return?) a "valid" DrdThreadId (probably the last one
that was running ?).
However, in such a situation, VG_(get_running_tid)() returns 0 (as effectively
there is no thread running).

This discrepancy (drd_tid "valid" and "vg_tid" invalid) can (probably) only
happen with gdb monitor commands, as a thread can (normally) execute a
client request only when it is running.

However, vgdb can "force" the invocation of the gdb monitor client request,
even if no thread is running.
In such a case, the assert should not verify that drd_tid and vg_tid are
consistent.

To reproduce the problem:
  ./vg-in-place --tool=drd sleep 60
and in another window:
  ./coregrind/vgdb help
which then gives
  ...
  drd: drd_clientreq.c:84 (handle_client_request): Assertion 'DRD_(VgThreadIdToDrdThreadId)(vg_tid) == drd_tid' failed.
  ==4208==    at 0x3801DE1D: report_and_quit (m_libcassert.c:260)
  ==4208==    by 0x3801E034: vgPlain_assert_fail (m_libcassert.c:340)
  ==4208==    by 0x380026CC: handle_client_request (drd_clientreq.c:84)
  ==4208==    by 0x3806EE8F: handle_gdb_monitor_command (server.c:490)
  ==4208==    by 0x3806F07A: handle_query (server.c:580)
  ==4208==    by 0x3806FDB2: server_main (server.c:915)
  ==4208==    by 0x3806B01C: call_gdbserver (m_gdbserver.c:706)
  ==4208==    by 0x3806B8F2: vgPlain_invoke_gdbserver (m_gdbserver.c:892)
  ...




git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13765

2013-12-21 16:57:26 +00:00

..

docs

Following svn r13758 (bug 328711), some further similar fixes,

2013-12-12 23:19:13 +00:00

scripts

Remove the ppc-cross directory because the scripts in it are not fully functional

2011-10-22 13:45:49 +00:00

tests

drd/tests/std_atomic: Add

2013-12-10 17:56:20 +00:00

drd_barrier.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_barrier.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_basics.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_bitmap.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_bitmap.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_clientobj.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_clientobj.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_clientreq.c

Fix drd assert failure for monitor cmd execution when all threads blocked in syscall

2013-12-21 16:57:26 +00:00

drd_clientreq.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_cond_initializer.c

Replaced dynamic initialization of DRD_(pthread_cond_initializer) by static initialization.

2010-06-02 19:32:51 +00:00

drd_cond.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_cond.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_darwin_intercepts.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_error.c

Allow tools to provide some statistics in suppression list produced at the end

2013-10-17 22:10:41 +00:00

drd_error.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_hb.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_hb.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_load_store.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_load_store.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_main.c

drd: Add range support for --ptrace-addr

2013-10-25 14:26:14 +00:00

drd_malloc_wrappers.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_malloc_wrappers.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_mutex.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_mutex.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_pthread_intercepts.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_qtcore_intercepts.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_rwlock.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_rwlock.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_segment.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_segment.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_semaphore.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_semaphore.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_strmem_intercepts.c

Merge mc_replace_strmem.c, hg_intercepts.c and drd_strmem_intercepts.c

2013-11-24 17:48:13 +00:00

drd_suppression.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_suppression.h

Fix more Char/HChar mixups. Closing in...

2012-11-10 22:29:54 +00:00

drd_thread_bitmap.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_thread.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_thread.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_vc.c

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd_vc.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

drd.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

Makefile.am

drd: Revert r12651 because it didn't change drd's behavior on any platform

2012-07-28 14:32:03 +00:00

pub_drd_bitmap.h

drd: Update copyright notice

2013-10-04 05:55:30 +00:00

Testing.txt

drd, XML: add xsd schema description and a script to verify the DRD XML output against the xsd

2011-10-13 18:16:29 +00:00