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From: Philippe W. <phi...@sk...> - 2013-08-17 03:57:05
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.7.2 20121109 (Red Hat 4.7.2-8) GDB: GNU gdb (GDB) Fedora (7.5.1-37.fc18) Assembler: GNU assembler version 2.23.51.0.1-7.fc18 20120806 C library: GNU C Library stable release version 2.16 uname -mrs: Linux 3.7.2-204.fc18.ppc64 ppc64 Vendor version: Fedora release 18 (Spherical Cow) Nightly build on gcc110 ( Fedora release 18 (Spherical Cow), ppc64 ) Started at 2013-08-16 20:00:10 PDT Ended at 2013-08-16 20:56:31 PDT Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 558 tests, 31 stderr failures, 3 stdout failures, 0 stderrB failures, 0 stdoutB failures, 2 post failures == memcheck/tests/linux/getregset (stdout) memcheck/tests/linux/getregset (stderr) memcheck/tests/ppc64/power_ISA2_05 (stdout) memcheck/tests/supp_unknown (stderr) memcheck/tests/varinfo6 (stderr) memcheck/tests/wrap8 (stdout) memcheck/tests/wrap8 (stderr) massif/tests/big-alloc (post) massif/tests/deep-D (post) helgrind/tests/annotate_rwlock (stderr) helgrind/tests/free_is_write (stderr) helgrind/tests/hg02_deadlock (stderr) helgrind/tests/hg03_inherit (stderr) helgrind/tests/hg04_race (stderr) helgrind/tests/hg05_race2 (stderr) helgrind/tests/locked_vs_unlocked1_fwd (stderr) helgrind/tests/locked_vs_unlocked1_rev (stderr) helgrind/tests/locked_vs_unlocked2 (stderr) helgrind/tests/locked_vs_unlocked3 (stderr) helgrind/tests/pth_barrier1 (stderr) helgrind/tests/pth_barrier2 (stderr) helgrind/tests/pth_barrier3 (stderr) helgrind/tests/pth_destroy_cond (stderr) helgrind/tests/rwlock_race (stderr) helgrind/tests/tc01_simple_race (stderr) helgrind/tests/tc05_simple_race (stderr) helgrind/tests/tc06_two_races (stderr) helgrind/tests/tc06_two_races_xml (stderr) helgrind/tests/tc09_bad_unlock (stderr) helgrind/tests/tc14_laog_dinphils (stderr) helgrind/tests/tc16_byterace (stderr) helgrind/tests/tc18_semabuse (stderr) helgrind/tests/tc19_shadowmem (stderr) helgrind/tests/tc20_verifywrap (stderr) helgrind/tests/tc21_pthonce (stderr) helgrind/tests/tc22_exit_w_lock (stderr) |
|
From: Tom H. <to...@co...> - 2013-08-17 03:29:28
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.3.0 20080428 (Red Hat 4.3.0-8) GDB: Assembler: GNU assembler version 2.18.50.0.6-2 20080403 C library: GNU C Library stable release version 2.8 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 9 (Sulphur) Nightly build on bristol ( x86_64, Fedora 9 ) Started at 2013-08-17 03:51:55 BST Ended at 2013-08-17 04:29:13 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 637 tests, 1 stderr failure, 1 stdout failure, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/amd64/insn-pcmpistri (stderr) none/tests/amd64/sse4-64 (stdout) |
|
From: Tom H. <to...@co...> - 2013-08-17 03:27:57
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.4.1 20090725 (Red Hat 4.4.1-2) GDB: Assembler: GNU assembler version 2.19.51.0.14-3.fc11 20090722 C library: GNU C Library stable release version 2.10.2 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 11 (Leonidas) Nightly build on bristol ( x86_64, Fedora 11 ) Started at 2013-08-17 03:41:35 BST Ended at 2013-08-17 04:27:41 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 639 tests, 1 stderr failure, 1 stdout failure, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/long_namespace_xml (stderr) none/tests/amd64/sse4-64 (stdout) |
|
From: Tom H. <to...@co...> - 2013-08-17 03:13:08
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.4.5 20101112 (Red Hat 4.4.5-2) GDB: Assembler: GNU assembler version 2.20.51.0.2-20.fc13 20091009 C library: GNU C Library stable release version 2.12.2 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 13 (Goddard) Nightly build on bristol ( x86_64, Fedora 13 ) Started at 2013-08-17 03:32:41 BST Ended at 2013-08-17 04:12:56 BST Results differ from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 639 tests, 2 stderr failures, 1 stdout failure, 0 stderrB failures, 0 stdoutB failures, 0 post failures == none/tests/fdleak_ipv4 (stdout) none/tests/fdleak_ipv4 (stderr) helgrind/tests/pth_barrier3 (stderr) ================================================= == Results from 24 hours ago == ================================================= Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 639 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == helgrind/tests/pth_barrier3 (stderr) ================================================= == Difference between 24 hours ago and now == ================================================= *** old.short 2013-08-17 03:51:41.755443543 +0100 --- new.short 2013-08-17 04:12:56.688739161 +0100 *************** *** 8,10 **** ! == 639 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == helgrind/tests/pth_barrier3 (stderr) --- 8,12 ---- ! == 639 tests, 2 stderr failures, 1 stdout failure, 0 stderrB failures, 0 stdoutB failures, 0 post failures == ! none/tests/fdleak_ipv4 (stdout) ! none/tests/fdleak_ipv4 (stderr) helgrind/tests/pth_barrier3 (stderr) |
|
From: Tom H. <to...@co...> - 2013-08-17 03:13:00
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4) GDB: GNU gdb (GDB) Fedora (7.2-52.fc14) Assembler: GNU assembler version 2.20.51.0.7-8.fc14 20100318 C library: GNU C Library stable release version 2.13 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 14 (Laughlin) Nightly build on bristol ( x86_64, Fedora 14 ) Started at 2013-08-17 03:23:17 BST Ended at 2013-08-17 04:12:41 BST Results differ from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 658 tests, 2 stderr failures, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) none/tests/fdleak_ipv4 (stderr) ================================================= == Results from 24 hours ago == ================================================= Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 658 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) ================================================= == Difference between 24 hours ago and now == ================================================= *** old.short 2013-08-17 03:43:41.735083219 +0100 --- new.short 2013-08-17 04:12:41.166051446 +0100 *************** *** 8,11 **** ! == 658 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) --- 8,12 ---- ! == 658 tests, 2 stderr failures, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) + none/tests/fdleak_ipv4 (stderr) |
|
From: Tom H. <to...@co...> - 2013-08-17 02:52:59
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2) GDB: GNU gdb (GDB) Fedora (7.3.1-48.fc15) Assembler: GNU assembler version 2.21.51.0.6-6.fc15 20110118 C library: GNU C Library stable release version 2.14.1 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 15 (Lovelock) Nightly build on bristol ( x86_64, Fedora 15 ) Started at 2013-08-17 03:13:19 BST Ended at 2013-08-17 03:52:39 BST Results differ from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 660 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) ================================================= == Results from 24 hours ago == ================================================= Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 660 tests, 2 stderr failures, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) none/tests/fdleak_ipv4 (stderr) ================================================= == Difference between 24 hours ago and now == ================================================= *** old.short 2013-08-17 03:32:54.985160357 +0100 --- new.short 2013-08-17 03:52:39.849273186 +0100 *************** *** 8,12 **** ! == 660 tests, 2 stderr failures, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) - none/tests/fdleak_ipv4 (stderr) --- 8,11 ---- ! == 660 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) |
|
From: Tom H. <to...@co...> - 2013-08-17 02:45:06
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.6.3 20120306 (Red Hat 4.6.3-2) GDB: GNU gdb (GDB) Fedora (7.3.50.20110722-16.fc16) Assembler: GNU assembler version 2.21.53.0.1-6.fc16 20110716 C library: GNU C Library development release version 2.14.90 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 16 (Verne) Nightly build on bristol ( x86_64, Fedora 16 ) Started at 2013-08-17 03:02:32 BST Ended at 2013-08-17 03:44:40 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 660 tests, 1 stderr failure, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) |
|
From: Tom H. <to...@co...> - 2013-08-17 02:33:46
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.7.2 20120921 (Red Hat 4.7.2-2) GDB: GNU gdb (GDB) Fedora (7.4.50.20120120-54.fc17) Assembler: GNU assembler version 2.22.52.0.1-10.fc17 20120131 C library: GNU C Library stable release version 2.15 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 17 (Beefy Miracle) Nightly build on bristol ( x86_64, Fedora 17 (Beefy Miracle) ) Started at 2013-08-17 02:52:03 BST Ended at 2013-08-17 03:33:27 BST Results differ from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 660 tests, 6 stderr failures, 2 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == gdbserver_tests/mcinfcallRU (stderr) gdbserver_tests/mcinfcallWSRU (stderr) gdbserver_tests/mcmain_pic (stderr) memcheck/tests/origin5-bz2 (stderr) none/tests/fdleak_ipv4 (stdout) none/tests/fdleak_ipv4 (stderr) exp-sgcheck/tests/preen_invars (stdout) exp-sgcheck/tests/preen_invars (stderr) ================================================= == Results from 24 hours ago == ================================================= Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 660 tests, 5 stderr failures, 1 stdout failure, 0 stderrB failures, 0 stdoutB failures, 0 post failures == gdbserver_tests/mcinfcallRU (stderr) gdbserver_tests/mcinfcallWSRU (stderr) gdbserver_tests/mcmain_pic (stderr) memcheck/tests/origin5-bz2 (stderr) exp-sgcheck/tests/preen_invars (stdout) exp-sgcheck/tests/preen_invars (stderr) ================================================= == Difference between 24 hours ago and now == ================================================= *** old.short 2013-08-17 03:11:19.899363560 +0100 --- new.short 2013-08-17 03:33:27.262508237 +0100 *************** *** 8,10 **** ! == 660 tests, 5 stderr failures, 1 stdout failure, 0 stderrB failures, 0 stdoutB failures, 0 post failures == gdbserver_tests/mcinfcallRU (stderr) --- 8,10 ---- ! == 660 tests, 6 stderr failures, 2 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == gdbserver_tests/mcinfcallRU (stderr) *************** *** 13,14 **** --- 13,16 ---- memcheck/tests/origin5-bz2 (stderr) + none/tests/fdleak_ipv4 (stdout) + none/tests/fdleak_ipv4 (stderr) exp-sgcheck/tests/preen_invars (stdout) |
|
From: Tom H. <to...@co...> - 2013-08-17 02:25:08
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.7.2 20121109 (Red Hat 4.7.2-8) GDB: GNU gdb (GDB) Fedora (7.5.1-38.fc18) Assembler: GNU assembler version 2.23.51.0.1-10.fc18 20120806 C library: GNU C Library stable release version 2.16 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 18 (Spherical Cow) Nightly build on bristol ( x86_64, Fedora 18 (Spherical Cow) ) Started at 2013-08-17 02:41:37 BST Ended at 2013-08-17 03:24:48 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 660 tests, 2 stderr failures, 1 stdout failure, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/origin5-bz2 (stderr) exp-sgcheck/tests/preen_invars (stdout) exp-sgcheck/tests/preen_invars (stderr) |
|
From: Maran P. <ma...@li...> - 2013-08-17 02:24:55
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (SUSE Linux) 4.3.4 [gcc-4_3-branch revision 152973] GDB: GNU gdb (GDB) SUSE (7.3-0.6.1) Assembler: GNU assembler (GNU Binutils; SUSE Linux Enterprise 11) 2.21.1 C library: GNU C Library stable release version 2.11.3 (20110527) uname -mrs: Linux 3.0.80-0.7-default s390x Vendor version: Welcome to SUSE Linux Enterprise Server 11 SP2 (s390x) - Kernel %r (%t). Nightly build on sless390 ( SUSE Linux Enterprise Server 11 SP1 gcc 4.3.4 on z196 (s390x) ) Started at 2013-08-17 03:45:01 CEST Ended at 2013-08-17 04:24:44 CEST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... done Regression test results follow == 636 tests, 0 stderr failures, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == |
|
From: Tom H. <to...@co...> - 2013-08-17 02:09:50
|
valgrind revision: 13501 VEX revision: 2744 C compiler: gcc (GCC) 4.8.1 20130603 (Red Hat 4.8.1-1) GDB: GNU gdb (GDB) Fedora (7.6-34.fc19) Assembler: GNU assembler version 2.23.52.0.1-9.fc19 20130226 C library: GNU C Library (GNU libc) stable release version 2.17 uname -mrs: Linux 3.9.5-301.fc19.x86_64 x86_64 Vendor version: Fedora release 19 (Schrödingerâs Cat) Nightly build on bristol ( x86_64, Fedora 19 (Schrödingerâs Cat) ) Started at 2013-08-17 02:31:58 BST Ended at 2013-08-17 03:09:23 BST Results unchanged from 24 hours ago Checking out valgrind source tree ... done Configuring valgrind ... done Building valgrind ... done Running regression tests ... failed Regression test results follow == 660 tests, 3 stderr failures, 0 stdout failures, 0 stderrB failures, 0 stdoutB failures, 0 post failures == memcheck/tests/dw4 (stderr) memcheck/tests/origin5-bz2 (stderr) exp-sgcheck/tests/hackedbz2 (stderr) |
|
From: Peter B. <be...@vn...> - 2013-08-17 00:09:48
|
On Fri, 2013-08-16 at 15:06 -0700, Carl E. Love wrote:
> The code sequence is essentially as follows:
>
> tbegin.
> beq <failure path>
> // success path
>
> Note, the are no restrictions preventing the compiler from putting
> additional instructions between the tbegin and the beq in the above code
> sequence.
True, although if the compiler does move something there, it will be
a redundant computation that would have been computed on both paths
anyway. A more common occurrence is the compiler can reverse the
sense of the branch, so instead of the code above, you might instead
see:
tbegin.
bne <success path>
// failure path
Logically it makes no difference and shouldn't affect the implementation
in valgrind, since the target address branched to on failure is always
the instruction after tbegin. (modulo being changed by writing to the
THFAR register) and not the address of the failure handler. It's the
job of the cr0 value and the branch to get you to the failure handler.
> We do not tell the CPU where to go on failure as is done in
> the Intel T_BEGIN.
Well not explicitly we don't, but we do implicitly and it is
just CIA+4. From a GCC code generation point of view, when a
xbegin is emitted on Intel, the failure "label" passed to the
xbegin instruction is always at CIA+4, so from a practical
standpoint, Intel and POWER are identical here.
> In my implementation, the host executes the tbegin. I didn't do
> anything to set or change the host TFIAR register. I capture the value
> from the condition code register and write that into the guest machine's
> condition code register.
How do you capture the cr0 value? I ask, because as part of the code
generation for the __builtin_tbegin builtin, I destroy it's value.
The only way to get that value is through use of the __builtin_ttest()
builtin, which returns the 4-bit value that was written to cr0 on
completion of the tbegin...as long as you haven't executed any more HTM
instructions in the mean time.
> > * (if the transaction does not fail)
> > the guest CPU arrives at T_END. It calls another dirty helper
> > function which first does T_END on the host, then pops
> > guest-fail-handler off the stack of handler addresses for
> > the thread. The transaction is over.
>
> In my implementation the T_END instruction is actually a noop right now.
> Looking at it again as I write this response I see this is an error in
> my current implementation. I will fix it.
If the host doesn't execute a tend., your host transaction will abort
100% of the time. No wonder things didn't work for you.
>> * (if the transaction fails)
>> the host CPU will jump to host-fail-handler.
>> This behaves similarly to how synchronous signals are currently
>> handled:
>> basically host-fail-handler must longjmp out of the JITted code, over
>> m_dispatch/dispatch-*.S, back into the scheduler, indicating somehow
>> that a transaction has failed. The scheduler can then fix up the guest
>> state, by popping guest-fail-handler off this thread's handler stack,
>> setting the guest state program counter to that value, and letting the
>> guest CPU resume.
One question I have, is what should we tell the guest program if the
host transaction fails? I'm guessing we want to mirror the transaction
success/failure up into the guest by making it look like the guest
transaction succeeded/failed too. Otherwise, all guest transactions
will seem to succeed regardless of the underlying host transactions.
That's not too realistic, just like the first implementation where
is always fails.
Peter
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