** Changed in: binutils (Debian)
Status: Confirmed => Fix Released
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Title:
fix non-8-bit x86 displacements
Thanks Lukasz, Christian, Robie, Matthias, and the various robots and
launchpad janitors: appreciate your help!
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This bug was fixed in the package binutils - 2.30-21ubuntu1~18.04.4
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binutils (2.30-21ubuntu1~18.04.4) bionic; urgency=medium
* d/p/lp-1883880-x86-don-t-mistakenly-scale-non-8-bit-displacements.patch:
avoid scaling displacements that breaks e.g. some AVX512 code (LP:
It is a manual process which happens after 7+ days of aging in -proposed
- but I have just confirmed the verification and will be proceeding to
release this into -updates. Thank you for your testing!
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Hey Folks,
Does the -proposed changes get automatically integrated to -updates
after a certain time has passed, or does this require somebody to take
action?
It would be great to have this update rolled out to 18.04 before OVS
2.14 is released in a week or two.
Regards, -Harry
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Hi All,
I have enabled the bionic-proposed repo as described in link. OVS-master
is used for testing, containing the build-time binutils bug check as
described above.
1) Can confirm that old binutils version (2.30-21ubuntu1~18.04.3) had
issue, and OVS was correctly DISabling AVX512.
2) Can
** Changed in: binutils (Debian)
Status: Unknown => Confirmed
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Title:
fix non-8-bit x86 displacements
** Bug watch added: Debian Bug tracker #963702
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=963702
** Also affects: binutils (Debian) via
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=963702
Importance: Unknown
Status: Unknown
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Autopkgtest issues resolved, all good now.
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Title:
fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
with:
2.30-21ubuntu1~18.04.3
root@b:~# echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d
avx.o | grep vmovaps
0: 62 f1 7c 48 28 04 05vmovaps 0x1(,%rax,1),%zmm0
with:
2.30-21ubuntu1~18.04.4
root@b:~# echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d
Hello Christian, or anyone else affected,
Accepted binutils into bionic-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/binutils/2.30-21ubuntu1~18.04.4 in
a few hours, and then in the -proposed repository.
Please help us by testing this new package.
To have a bileto PPA with security only (thanks Sil2100 for stopping it to
reconfigure itself) look at:
https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/4151
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On first check by the SRU team I got:
[18:34] cpaelzer: ok, looking at the binutils SRU, so you talked to
do_ko about it, right? Was he +1 on the change?
He was in a private IRC, I now asked him to state it here as well so
that it is visible to the SRU team. And he already did so - thanks!
yes, this looks sensible as a SRU
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Title:
fix non-8-bit x86 displacements breaking AVX512 builds on Bionic
Status
Hi Christian,
Thanks for the additional info! Confirm that with the PPA the proposed
checks now pass:
$ echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d avx.o |
grep vmovaps
8: 0: 62 f1 7c 48 28 04 05vmovaps 0x40(,%rax,1),%zmm0
Also the proposed OVS automake
Hi Harry,
the real action/verification will be needed ocne the SRU team has accepted that
into proposed [1].
If you want to test the PPA the following will enable it on your system:
$ sudo add-apt-repository ppa:ci-train-ppa-service/4105
The PPA tells you that on its front page [2] as well, I
Hey Folks,
Apologies I'm not familiar with the SRU testing process. I'd like to
help - have an 18.04 setup for testing here. Is there an easy way to add
the test-build PPA and just do an apt update && apt install binutils?
https://launchpad.net/~ci-train-ppa-
I got doko to have a quick look (as he is unavailable atm) which seemed ok.
This was mostly to hear from him if this was an overall horrendous idea (it
isn't) and not to check every line, so this should be ok as-is then.
Further as stated above all other pre-checks against the PPA are good as
A few dep8 tests failed in the sniff, but all of them are existing known
overrides in Bionic:
ubuntu-release:9:force-badtest dh-ada-library/6.12
ubuntu-release:18:force-badtest lintian/2.5.81ubuntu1
pitti:2:force-badtest rpmlint/1.9-6
ubuntu-sru:17:force-badtest snapcraft/2.43.1+18.04/amd64
Tested in Bionic Container:
no PPA:
root@b:~# echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d
avx.o | grep vmovaps
0: 62 f1 7c 48 28 04 05vmovaps 0x1(,%rax,1),%zmm0
with PPA:
root@b:~# echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d
avx.o | grep
Added an SRU Teamplate entry in the description, thanks Bruce for the
test.
The changes build fine, all self tests on build are good [1].
The dep8 sniff tests have just started at [2] and will later be available there.
The changes are rather small as seen on [3]
But while all that shall help by
** Merge proposal linked:
https://code.launchpad.net/~paelzer/ubuntu/+source/binutils/+git/binutils/+merge/386073
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Proposed patch on OVS Mailing list to check status at configure time for OVS
2.14 using the method Bruce mentioned above:
https://patchwork.ozlabs.org/project/openvswitch/patch/20200618165354.87787-7-harry.van.haa...@intel.com/
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Command to reproduce the issue:
echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d
avx.o | grep vmovaps
The expected output is that the objdump output matches the vmovaps
instruction input. When using binutils with the bug, the initial 0x40
will be incorrect.
>From an Ubuntu
Hi All,
I contacted Christian to mention/report, just noting that here.
Happy to test if we get an SRU, I'll get email notifications once I post this :)
Regards, -Harry
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