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From: Peter B. <be...@li...> - 2021-10-05 21:25:36
|
On 9/13/21 11:40 AM, Carl Love wrote:
> Remove deprecated regression tests for mftgpr and mffgpr.
[snip]
> case 0x2DF: { // mftgpr (move floating-point to general purpose register)
> + /* The mftgpr instruction was deprecated in Power 7, 2009 timeframe.
> + Leaving support in Valgrind for now (9/10/2021). Can remove the
> + mftgpr support in Valgrind if the opcode ever gets reused. */
To be pedantic, the mffgpr and mftgpr instructions never made it "officially"
into any cpu. They were planned to be available in POWER6 but were yanked
at the last minute and a supported POWER6 (ie, AT_PLATFORM=power6) will
give you a SIGILL if you execute it. They are available when you boot your
POWER6 system in RAW mode (ie, AT_PLATFORM=power6x), then they will work.
Since RAW mode is unsupported, I think we can treat these instructions as
never really ever being implemented.
Peter
|
|
From: Mark W. <ma...@kl...> - 2021-10-05 16:16:11
|
Hi Carl, On Fri, 2021-10-01 at 14:54 -0700, Carl Love wrote: > I opened a number of Power PC bugzillas for the various items I was > working on. I committed my 13 patch series that fixes all the issues > in the bugzillas that I opened yesterday. I verified that the > regression test run from last night reported the additional three > tests > that were added ran. No new issues were reported. I have now closed > all of the bugzillas for the issues that I opened. > > I looked thru the outstanding Valgrind bugs and closed a couple > additional bugs that have been fixed. Thanks! > There are two bugs that users have reported on Powerpc that are still > open: > > https://bugs.kde.org/show_bug.cgi?id=420780 > https://bugs.kde.org/show_bug.cgi?id=411189 > > [...] > Those are the only two open issues specific to PPC that I am aware > of. > It looks to me that both issues are fixed. Yes, it looks like both these are good now. > I am not aware of any additional powerpc specific issues in Valgrind at > this time. So from the Powerpc perspective, we are ready for the next > Valgrind release. Great. We still have Paul's freebsd patches to land. But it looks like we are fairly close now. I would like to resolve at least the following bugs: https://bugs.kde.org/show_bug.cgi?id=439090 Implement close_range(2) ("WARNING: unhandled amd64-linux syscall: 436") Which has an initial patch, but probably needs to use the file descriptor tracking. https://bugs.kde.org/show_bug.cgi?id=426148 Valgrind crash with "impossible happened" when running BPF CO-RE programs Which is about an extension of the bpf systemcall for which we currently crash, but we should be able to handle. I still have an odd issue on s390x with the vgdb, for which I have a workaround, but no root cause yet: https://bugs.kde.org/show_bug.cgi?id=441474 And it seems that if we get a fatal signal at an unfortunate place in the guest program and we call __libc_freeres things blow up. We might want to only call __libc_freeres on normal program exit, not after processing a fatal signal. Don't have a small reproducer yet. Please let me know if there are any other pending bugs that would be nice to get resolved before the release. Cheers, Mark |
|
From: Mark W. <ma...@so...> - 2021-10-05 10:28:36
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=efe91b114ac9eae3b77bf3dd73f7e0fb14dd7c82 commit efe91b114ac9eae3b77bf3dd73f7e0fb14dd7c82 Author: Mark Wielaard <ma...@kl...> Date: Tue Oct 5 12:27:46 2021 +0200 Add 368960 WARNING: unhandled amd64-linux syscall: 163 (acct) in NEWS Fixed in commit 9aa51a6e2 Hook up acct syscall for amd64, mips32, ppc32 and ppc64 Diff: --- NEWS | 1 + 1 file changed, 1 insertion(+) diff --git a/NEWS b/NEWS index 8f62518401..e4cec71c56 100644 --- a/NEWS +++ b/NEWS @@ -37,6 +37,7 @@ bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather than mailing the developers (or mailing lists) directly -- bugs that are not entered into bugzilla tend to get forgotten about or ignored. +368960 WARNING: unhandled amd64-linux syscall: 163 (acct) 423963 Error in child thread when CLONE_PIDFD is used 429375 PPC ISA 3.1 support is missing, part 9 431157 PPC_FEATURE2_SCV needs to be masked in AT_HWCAP2 |