4:53 a.m.
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Bug ID: 995419
Summary: ghc throws an illegal instruction error when compiling
on nvidia tegra2
Product: Fedora
Version: rawhide
Component: ghc
Assignee: petersen(a)redhat.com
Reporter: hdegoede(a)redhat.com
QA Contact: extras-qa(a)fedoraproject.org
CC: bos(a)serpentine.com,
haskell-devel(a)lists.fedoraproject.org,
petersen(a)redhat.com
While doing a testbuild of hedgewars on my trimslice (arm system with nVidia
Tegra2 soc), I got the following error:
/bin/sh: line 1: 1076 Illegal instruction /usr/bin/ghc --make
/root/rpmbuild/BUILD/hedgewars-src-0.9.18/gameServer/hedgewars-server.hs
-i/root/rpmbuild/BUILD/hedgewars-src-0.9.18/gameServer -o
/root/rpmbuild/BUILD/hedgewars-src-0.9.18/bin/hedgewars-server -odir
/root/rpmbuild/BUILD/hedgewars-src-0.9.18/gameServer -hidir
/root/rpmbuild/BUILD/hedgewars-src-0.9.18/gameServer -O2
This is with F-20 ghc, but F-19 glibc due to bug 985342, after fixing the build
issue I was trying to debug "blind" (guessing the cause and firing of a build)
the build did succeed on the buildsystem, so the likely cause for this is the
ghc binaries containing (unconditionally executed) neon code.
A good place to start fixing this is to check the compile flags for ghc, end
ensure they don't enable neon. If that is not the case it may be interesting to
wait and see how bug 985342 plays out, as that is a similar issue.
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4:54 a.m.
New subject: [Bug 995419] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Hans de Goede <hdegoede(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks| |245418 (ARMTracker)
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2:33 a.m.
New subject: [Bug 995419] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #1 from Jens Petersen <petersen(a)redhat.com> ---
On ARM ghc uses the llvm backend (note not clang)
to generate machine code. This might be an llvm bug perhaps.
Can you try running the above command with "ghc -v ..." or so?
That might give a better clue to where the exact problem happens.
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2:34 a.m.
New subject: [Bug 995419] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hdegoede(a)redhat.com
Flags| |needinfo?(hdegoede(a)redhat.c
| |om)
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8:19 a.m.
New subject: [Bug 995419] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Hans de Goede <hdegoede(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags|needinfo?(hdegoede(a)redhat.c |
|om) |
--- Comment #2 from Hans de Goede <hdegoede(a)redhat.com> ---
I tried adding the -v but all ghc says is: "Illegal instruction", actually even
just doing "ghc --help" on the trimslice results in an Illegal instruction
error. So it looks like ghc on arm is most likely build in such a way that it
uses neon instructions which the nvidia tegra 2 in the trimslice does not have.
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3:42 a.m.
New subject: [Bug 995419] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #3 from Jens Petersen <petersen(a)redhat.com> ---
I see, thanks for the info.
Is it not allowed to build packages with neon for Fedora ARM?
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1:46 a.m.
New subject: [Bug 995419] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #4 from Hans de Goede <hdegoede(a)redhat.com> ---
(In reply to Jens Petersen from comment #3)
I see, thanks for the info.
Is it not allowed to build packages with neon for Fedora ARM?
Not unconditionally, see ie this glibc bug:
https://bugzilla.redhat.com/show_bug.cgi?id=985342 which was about a glibc bug
causing it to use neon versions of memcpy, etc. on non neon machines. Fedora
tries to support armv7 as baseline, and neon is optional on v7.
TL;DR: having the binaries use neon if they detect a neon capable cpu is fine,
using neon unconditionally is not,
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2:52 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Hardware|Unspecified |arm
Summary|ghc throws an illegal |[neon] ghc throws an
|instruction error when |illegal instruction error
|compiling on nvidia tegra2 |when compiling on nvidia
| |tegra2
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12:21 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #6 from Jens Petersen <petersen(a)redhat.com> ---
Does llvm (or clang) work for you on your tegra2?
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4:27 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Hans de Goede <hdegoede(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pbrobinson(a)gmail.com
--- Comment #7 from Hans de Goede <hdegoede(a)redhat.com> ---
Unfortunately my trimslice is acting up. Once I get it to boot it seems fine,
but the !@#% buggy uboot they ship wants to boot neither from mmc nor from the
HD.
So I got it to boot once, and clang --version and llvm-as --version both worked
fine. I wanted to also upgrade ghc to the latest and try ghc --version again,
but my sdcard was too small and booting from hdd fails (as does booting the
sdcard now too).
Adding Peter Robinson to the CC, hopefully he can help. Peter my trimslice is
acting up, can you update / install ghc on yours and see if "ghc --version" in
F-20 (or newer) still fails with an illegal instruction error ?
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5:03 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #8 from Peter Robinson <pbrobinson(a)gmail.com> ---
The trimslice (tegra2) doesn't support NEON, this indicates that the ghc build
isn't using the distro CFLAGS which don't enable NEON by default. The means we
usually support NEON is by run time detection with code fast paths for NEON
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7:16 p.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #9 from Jens Petersen <petersen(a)redhat.com> ---
ghc is not written in C... :)
I asking if programs compiled with llvm/clang work on tegra2,
since ghc using llvm as its code generator backend on ARM.
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11:06 p.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #10 from Peter Robinson <pbrobinson(a)gmail.com> ---
I don't see what llvm has got to do with it. The fact is that for ARMv7 (any
arm 32 bit) that NEON is optional so there should be options to disable it at
compile time or at least make it run time detectable no matter what the
compiler or language.
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3:52 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #11 from Jens Petersen <petersen(a)redhat.com> ---
(In reply to Peter Robinson from comment #10)
I don't see what llvm has got to do with it.
So I am asking if llvm does the right thing...
if it doesn't it is probably not ghc's fault. ;)
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4:06 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #12 from Jens Petersen <petersen(a)redhat.com> ---
Anyway I will try to check the ghc llvm codegen code later to see
if there are any clues to this there and maybe ask upstream,
but my impression is that tegra2 is already getting a bit old
so I would not be surprised if there is not so much interest
or motivation to fix this if it is a ghc issue.
If someone could check the llvm side that would be helpful.
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2:30 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #13 from Jens Petersen <petersen(a)redhat.com> ---
(In reply to Hans de Goede from comment #7)
Unfortunately my trimslice is acting up.
:
So I got it to boot once, and clang --version and llvm-as --version
both
worked fine.
I guess we need to see how ghc is running llc...
I tried to build ghc-entropy on arm with verbose ghc output
=====
--- a/ghc-entropy.spec
+++ b/ghc-entropy.spec
@@ -44,6 +44,7 @@ This package provides the Haskell %{pkg_name} library
development files.
%patch1 -p1 -b .orig
%build
+cabal_configure_extra_options="--ghc-option=-v"
%ghc_lib_build
=====
and see (http://koji.fedoraproject.org/koji/taskinfo?taskID=7135691):
:
*** CodeGen:
*** LlVM CodeGen:
You are using a new version of LLVM that hasn't been tested yet!
We will try though...
*** LLVM Optimiser:
'/usr/bin/opt' '/tmp/ghc408_0/ghc408_0.ll' '-o'
'/tmp/ghc408_0/ghc408_0.bc'
'-O2' '--enable-tbaa=true'
*** LLVM Compiler:
'/usr/bin/llc' '-O3' '-relocation-model=static'
'/tmp/ghc408_0/ghc408_0.bc'
'-o' '/tmp/ghc408_0/ghc408_0.lm_s' '--enable-tbaa=true'
'-mattr=+v7,+vfp3'
'-float-abi=hard'
:
The "+vfp3" looks like the place where neon should be disabled perhaps.
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2:54 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
--- Comment #14 from Jens Petersen <petersen(a)redhat.com> ---
I suspect a change to ghc like this:
--- a/compiler/main/DriverPipeline.hs
+++ b/compiler/main/DriverPipeline.hs
@@ -1420,7 +1420,7 @@ runPhase (RealPhase LlvmLlc) input_fn dflags
-- does not enable VFP by default. Let's do this manually here
fpOpts = case platformArch (targetPlatform dflags) of
ArchARM ARMv7 ext _ -> if (elem VFPv3 ext)
- then ["-mattr=+v7,+vfp3"]
+ then ["-mattr=+v7,+vfp3,-neon"]
else if (elem VFPv3D16 ext)
then ["-mattr=+v7,+vfp3,+d16"]
else []
would disable neon for all builds. I don't know if llvm
is able to generate runtime detection+code for neon.
How relevant is tegra2 and other SoC's without neon these days?
If I do a scratch build of ghc without neon is someone able
and willing to test it on a system with neon support?
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3:31 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #15 from Peter Robinson <pbrobinson(a)gmail.com> ---
else if (elem VFPv3D16 ext)
then ["-mattr=+v7,+vfp3,+d16"]
Actually those options there are the ones we build Fedora for.
would disable neon for all builds. I don't know if llvm
is able to generate runtime detection+code for neon.
Nor do I but it would be nice!
How relevant is tegra2 and other SoC's without neon these days?
It's still the target we build for, there's a number of chips from Marvell that
don't have NEON either. There's a number of projects that do run time detection
of NEON.
If I do a scratch build of ghc without neon is someone able
and willing to test it on a system with neon support?
Yes. Just need the process to do so.
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9:52 p.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #16 from Jens Petersen <petersen(a)redhat.com> ---
(In reply to Peter Robinson from comment #15)
> else if (elem VFPv3D16
ext)
> then
["-mattr=+v7,+vfp3,+d16"]
Actually those options there are the ones we build Fedora for.
Okay, I think Debian does too IIRC.
Does VFPv3D16 imply no Neon?
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2:01 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #17 from Peter Robinson <pbrobinson(a)gmail.com> ---
Does VFPv3D16 imply no Neon?
Not necessarily, it's just the lowest common denominator for a unit with VFPv3
unit and hence lowest common denominator of ARMv7 that we support. It indicates
the VFPv3 unit has 16 double-precision registers, the other option is 32.
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2:23 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #18 from Jens Petersen <petersen(a)redhat.com> ---
Okay thanks.
What version of Fedora would you like me to build a test package for?
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4:10 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #19 from Peter Robinson <pbrobinson(a)gmail.com> ---
either F-20 or F-21 is fine
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4:11 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #20 from Peter Robinson <pbrobinson(a)gmail.com> ---
(In reply to Peter Robinson from comment #19)
either F-20 or F-21 is fine
Actually make that F-20, the trimslice is still on F-20
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5:19 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #21 from Jens Petersen <petersen(a)redhat.com> ---
Okay I started this build in koji:
http://koji.fedoraproject.org/koji/taskinfo?taskID=7142529
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3:11 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #22 from Jens Petersen <petersen(a)redhat.com> ---
Okay that build failed due to a packaging issue...
Hopefully this one will finish:
http://koji.fedoraproject.org/koji/taskinfo?taskID=7149663
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7:47 p.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #23 from Jens Petersen <petersen(a)redhat.com> ---
(In reply to Jens Petersen from comment #22)
Yes, it finished
I think it should be sufficient just to test:
https://kojipkgs.fedoraproject.org//work/tasks/9663/7149663/ghc-compiler-...
https://kojipkgs.fedoraproject.org//work/tasks/9663/7149663/ghc-base-4.6....
https://kojipkgs.fedoraproject.org//work/tasks/9663/7149663/ghc-binary-de...
and try running "ghc --help" or "ghc-pkg list".
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1:52 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #24 from Jens Petersen <petersen(a)redhat.com> ---
I think the scratch build might get gc'ed soon...
but if so give me a shout - I have downloaded it. ;)
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5:33 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #25 from Peter Robinson <pbrobinson(a)gmail.com> ---
(In reply to Jens Petersen from comment #24)
I think the scratch build might get gc'ed soon...
but if so give me a shout - I have downloaded it. ;)
I have pulled them, I'll test tonight as the device has decided it doesn't wish
to be accessed remotely for some reason ATM :-/
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2:23 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #26 from Peter Robinson <pbrobinson(a)gmail.com> ---
[root@trimslice ~]# yum localinstall ghc*rpm
Loaded plugins: langpacks
Examining ghc-base-4.6.0.1-24.1.fc20.armv7hl.rpm:
ghc-base-4.6.0.1-24.1.fc20.armv7hl
Marking ghc-base-4.6.0.1-24.1.fc20.armv7hl.rpm to be installed
Examining ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl.rpm:
ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
Marking ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl.rpm to be installed
Examining ghc-compiler-7.6.3-24.1.fc20.armv7hl.rpm:
ghc-compiler-7.6.3-24.1.fc20.armv7hl
Marking ghc-compiler-7.6.3-24.1.fc20.armv7hl.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package ghc-base.armv7hl 0:4.6.0.1-24.1.fc20 will be installed
---> Package ghc-binary-devel.armv7hl 0:0.5.1.1-24.1.fc20 will be installed
--> Processing Dependency: ghc-binary(armv7hl-32) = 0.5.1.1-24.1.fc20 for
package: ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
updates/20/armhfp/metalink | 25 kB 00:00
updates | 4.9 kB 00:00
updates-testing/20/armhfp/metalink | 22 kB 00:00
updates-testing | 4.9 kB 00:00
(1/2): updates-testing/20/armhfp/primary_db | 1.6 MB 00:06
(2/2): updates/20/armhfp/primary_db | 9.0 MB 00:09
(1/4): updates-testing/20/armhfp/updateinfo | 210 kB 00:01
(2/4): updates-testing/20/armhfp/pkgtags | 880 kB 00:01
(3/4): updates/20/armhfp/updateinfo | 1.3 MB 00:03
(4/4): updates/20/armhfp/pkgtags | 880 kB 00:03
--> Processing Dependency:
ghc-devel(array-0.4.0.1-72eb1caf42d7f1e9e960760f41ef98d0) for package:
ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
--> Processing Dependency:
ghc-devel(base-4.6.0.1-96bf6b6729ca53a5ac2cf45bb8b3cc3e) for package:
ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
--> Processing Dependency:
ghc-devel(bytestring-0.10.0.2-ea1d6622fb7aad447c7746744ecded40) for package:
ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
--> Processing Dependency:
ghc-devel(containers-0.5.0.0-3b8b869ec10d44736414ab5bea776319) for package:
ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
---> Package ghc-compiler.armv7hl 0:7.6.3-24.1.fc20 will be installed
--> Processing Dependency: llvm >= 3.0 for package:
ghc-compiler-7.6.3-24.1.fc20.armv7hl
--> Running transaction check
---> Package ghc-array-devel.armv7hl 0:0.4.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-array-devel-0.4.0.1-18.3.fc20.armv7hl
--> Processing Dependency: ghc-array(armv7hl-32) = 0.4.0.1-18.3.fc20 for
package: ghc-array-devel-0.4.0.1-18.3.fc20.armv7hl
---> Package ghc-base-devel.armv7hl 0:4.6.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
--> Processing Dependency: ghc-base(armv7hl-32) = 4.6.0.1-18.3.fc20 for
package: ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
--> Processing Dependency: libffi-devel(armv7hl-32) for package:
ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
--> Processing Dependency: gmp-devel(armv7hl-32) for package:
ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
---> Package ghc-binary-devel.armv7hl 0:0.5.1.1-24.1.fc20 will be installed
--> Processing Dependency: ghc-binary(armv7hl-32) = 0.5.1.1-24.1.fc20 for
package: ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
---> Package ghc-bytestring-devel.armv7hl 0:0.10.0.2-18.3.fc20 will be
installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-bytestring-devel-0.10.0.2-18.3.fc20.armv7hl
--> Processing Dependency: ghc-bytestring(armv7hl-32) = 0.10.0.2-18.3.fc20 for
package: ghc-bytestring-devel-0.10.0.2-18.3.fc20.armv7hl
--> Processing Dependency:
ghc-devel(deepseq-1.3.0.1-aa1be128186a233c7290faf88620ffe5) for package:
ghc-bytestring-devel-0.10.0.2-18.3.fc20.armv7hl
---> Package ghc-containers-devel.armv7hl 0:0.5.0.0-18.3.fc20 will be installed
--> Processing Dependency: ghc-containers(armv7hl-32) = 0.5.0.0-18.3.fc20 for
package: ghc-containers-devel-0.5.0.0-18.3.fc20.armv7hl
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-containers-devel-0.5.0.0-18.3.fc20.armv7hl
---> Package llvm.armv7hl 0:3.4-6.fc20 will be installed
--> Running transaction check
---> Package ghc-array.armv7hl 0:0.4.0.1-18.3.fc20 will be installed
---> Package ghc-array-devel.armv7hl 0:0.4.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-array-devel-0.4.0.1-18.3.fc20.armv7hl
---> Package ghc-base-devel.armv7hl 0:4.6.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
--> Processing Dependency: ghc-base(armv7hl-32) = 4.6.0.1-18.3.fc20 for
package: ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
---> Package ghc-binary-devel.armv7hl 0:0.5.1.1-24.1.fc20 will be installed
--> Processing Dependency: ghc-binary(armv7hl-32) = 0.5.1.1-24.1.fc20 for
package: ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
---> Package ghc-bytestring.armv7hl 0:0.10.0.2-18.3.fc20 will be installed
---> Package ghc-bytestring-devel.armv7hl 0:0.10.0.2-18.3.fc20 will be
installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-bytestring-devel-0.10.0.2-18.3.fc20.armv7hl
---> Package ghc-containers.armv7hl 0:0.5.0.0-18.3.fc20 will be installed
---> Package ghc-containers-devel.armv7hl 0:0.5.0.0-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-containers-devel-0.5.0.0-18.3.fc20.armv7hl
---> Package ghc-deepseq-devel.armv7hl 0:1.3.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-deepseq(armv7hl-32) = 1.3.0.1-18.3.fc20 for
package: ghc-deepseq-devel-1.3.0.1-18.3.fc20.armv7hl
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-deepseq-devel-1.3.0.1-18.3.fc20.armv7hl
---> Package gmp-devel.armv7hl 1:5.1.2-2.fc20 will be installed
---> Package libffi-devel.armv7hl 0:3.0.13-5.fc20 will be installed
--> Running transaction check
---> Package ghc-array-devel.armv7hl 0:0.4.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-array-devel-0.4.0.1-18.3.fc20.armv7hl
---> Package ghc-base-devel.armv7hl 0:4.6.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
--> Processing Dependency: ghc-base(armv7hl-32) = 4.6.0.1-18.3.fc20 for
package: ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl
---> Package ghc-binary-devel.armv7hl 0:0.5.1.1-24.1.fc20 will be installed
--> Processing Dependency: ghc-binary(armv7hl-32) = 0.5.1.1-24.1.fc20 for
package: ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
---> Package ghc-bytestring-devel.armv7hl 0:0.10.0.2-18.3.fc20 will be
installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-bytestring-devel-0.10.0.2-18.3.fc20.armv7hl
---> Package ghc-containers-devel.armv7hl 0:0.5.0.0-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-containers-devel-0.5.0.0-18.3.fc20.armv7hl
---> Package ghc-deepseq.armv7hl 0:1.3.0.1-18.3.fc20 will be installed
---> Package ghc-deepseq-devel.armv7hl 0:1.3.0.1-18.3.fc20 will be installed
--> Processing Dependency: ghc-compiler = 7.6.3-18.3.fc20 for package:
ghc-deepseq-devel-1.3.0.1-18.3.fc20.armv7hl
--> Finished Dependency Resolution
Error: Package: ghc-bytestring-devel-0.10.0.2-18.3.fc20.armv7hl (updates)
Requires: ghc-compiler = 7.6.3-18.3.fc20
Available: ghc-compiler-7.6.3-18.2.fc20.armv7hl (fedora)
ghc-compiler = 7.6.3-18.2.fc20
Available: ghc-compiler-7.6.3-18.3.fc20.armv7hl (updates)
ghc-compiler = 7.6.3-18.3.fc20
Error: Package: ghc-array-devel-0.4.0.1-18.3.fc20.armv7hl (updates)
Requires: ghc-compiler = 7.6.3-18.3.fc20
Available: ghc-compiler-7.6.3-18.2.fc20.armv7hl (fedora)
ghc-compiler = 7.6.3-18.2.fc20
Available: ghc-compiler-7.6.3-18.3.fc20.armv7hl (updates)
ghc-compiler = 7.6.3-18.3.fc20
Error: Package: ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl (updates)
Requires: ghc-compiler = 7.6.3-18.3.fc20
Available: ghc-compiler-7.6.3-18.2.fc20.armv7hl (fedora)
ghc-compiler = 7.6.3-18.2.fc20
Available: ghc-compiler-7.6.3-18.3.fc20.armv7hl (updates)
ghc-compiler = 7.6.3-18.3.fc20
Error: Package: ghc-base-devel-4.6.0.1-18.3.fc20.armv7hl (updates)
Requires: ghc-base(armv7hl-32) = 4.6.0.1-18.3.fc20
Available: ghc-base-4.6.0.1-18.2.fc20.armv7hl (fedora)
ghc-base(armv7hl-32) = 4.6.0.1-18.2.fc20
Available: ghc-base-4.6.0.1-18.3.fc20.armv7hl (updates)
ghc-base(armv7hl-32) = 4.6.0.1-18.3.fc20
Error: Package: ghc-containers-devel-0.5.0.0-18.3.fc20.armv7hl (updates)
Requires: ghc-compiler = 7.6.3-18.3.fc20
Available: ghc-compiler-7.6.3-18.2.fc20.armv7hl (fedora)
ghc-compiler = 7.6.3-18.2.fc20
Available: ghc-compiler-7.6.3-18.3.fc20.armv7hl (updates)
ghc-compiler = 7.6.3-18.3.fc20
Error: Package: ghc-deepseq-devel-1.3.0.1-18.3.fc20.armv7hl (updates)
Requires: ghc-compiler = 7.6.3-18.3.fc20
Available: ghc-compiler-7.6.3-18.2.fc20.armv7hl (fedora)
ghc-compiler = 7.6.3-18.2.fc20
Available: ghc-compiler-7.6.3-18.3.fc20.armv7hl (updates)
ghc-compiler = 7.6.3-18.3.fc20
Error: Package: ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl
(/ghc-binary-devel-0.5.1.1-24.1.fc20.armv7hl)
Requires: ghc-binary(armv7hl-32) = 0.5.1.1-24.1.fc20
Available: ghc-binary-0.5.1.1-18.2.fc20.armv7hl (fedora)
ghc-binary(armv7hl-32) = 0.5.1.1-18.2.fc20
Available: ghc-binary-0.5.1.1-18.3.fc20.armv7hl (updates)
ghc-binary(armv7hl-32) = 0.5.1.1-18.3.fc20
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
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4:24 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #27 from Jens Petersen <petersen(a)redhat.com> ---
May I suggest:
# yum remove ghc-*
# rpm -ivh ghc-compiler-* ghc-base-*
$ ghc --version
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4:42 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #28 from Peter Robinson <pbrobinson(a)gmail.com> ---
https://kojipkgs.fedoraproject.org//work/tasks/9663/7149663/ghc-compiler-7.6.
3-24.1.fc20.armv7hl.rpm
https://kojipkgs.fedoraproject.org//work/tasks/9663/7149663/ghc-base-4.6....
24.1.fc20.armv7hl.rpm
https://kojipkgs.fedoraproject.org//work/tasks/9663/7149663/ghc-binary-de...
0.5.1.1-24.1.fc20.armv7hl.rpm
Needed a few more of the packages from the build
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4:49 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #29 from Peter Robinson <pbrobinson(a)gmail.com> ---
[root@trimslice ~]# ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.6.3
[root@trimslice ~]# ghc --help
Usage:
ghc [command-line-options-and-input-files]
To compile and link a complete Haskell program, run the compiler like
so:
ghc --make Main
where the module Main is in a file named Main.hs (or Main.lhs) in the
current directory. The other modules in the program will be located
and compiled automatically, and the linked program will be placed in
the file `a.out' (or `Main.exe' on Windows).
Alternatively, ghc can be used to compile files individually. Each
input file is guided through (some of the) possible phases of a
compilation:
- unlit: extract code from a "literate program"
- hscpp: run code through the C pre-processor (if -cpp flag given)
- hsc: run the Haskell compiler proper
- gcc: run the C compiler (if compiling via C)
- as: run the assembler
- ld: run the linker
For each input file, the phase to START with is determined by the
file's suffix:
- .lhs literate Haskell unlit
- .hs plain Haskell ghc
- .hc C from the Haskell compiler gcc
- .c C not from the Haskell compiler gcc
- .s assembly language as
- other passed directly to the linker ld
The phase at which to STOP processing is determined by a command-line
option:
-E stop after generating preprocessed, de-litted Haskell
(used in conjunction with -cpp)
-C stop after generating C (.hc output)
-S stop after generating assembler (.s output)
-c stop after generating object files (.o output)
Other commonly-used options are:
-v[n] Control verbosity (n is 0--5, normal verbosity level is 1,
-v alone is equivalent to -v3)
-fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
-O An `optimising' package of compiler flags, for faster code
-prof Compile for cost-centre profiling
(add -auto-all for automagic cost-centres on all
top-level functions)
-H14m Increase compiler's heap size (might make compilation
faster, especially on large source files).
-M Output Makefile rules recording the
dependencies of a list of Haskell files.
Given the above, here are some TYPICAL invocations of ghc:
# compile a Haskell module to a .o file, optimising:
% ghc -c -O Foo.hs
# link three .o files into an executable called "test":
% ghc -o test Foo.o Bar.o Baz.o
# compile a Haskell module to C (a .hc file), using a bigger heap:
% ghc -C -H16m Foo.hs
# compile Haskell-produced C (.hc) to assembly language:
% ghc -S Foo.hc
The User's Guide has more information about GHC's *many* options. An
online copy can be found here:
http://haskell.org/haskellwiki/GHC
------------------------------------------------------------------------
[root@trimslice ~]# ghc-pkg list
/usr/lib/ghc-7.6.3/package.conf.d
array-0.4.0.1
base-4.6.0.1
binary-0.5.1.1
bytestring-0.10.0.2
containers-0.5.0.0
deepseq-1.3.0.1
ghc-prim-0.3.0.0
integer-gmp-0.5.0.0
rts-1.0
[root@trimslice ~]#
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5:02 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #30 from Jens Petersen <petersen(a)redhat.com> ---
Great seems like it is working better.
You could try a simple helloworld:
$ cat > hello.hs
main = putStrLn "hi!"
$ ghc hello.hs
$ ./hello
If it is looks good and doesn't change the library ABI hashes
then I guess this could be made a Fedora Update.
But I am wondering on the impact of this bug to rest of
the Haskell packages. Maybe everything needs to be rebuilt
to work without Neon, which sounds like for rawhide?
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5:12 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #31 from Peter Robinson <pbrobinson(a)gmail.com> ---
[root@trimslice ~]# ghc hello.hs
[1 of 1] Compiling Main ( hello.hs, hello.o )
You are using a new version of LLVM that hasn't been tested yet!
We will try though...
Linking hello ...
[root@trimslice ~]# ./hello
hi!
[root@trimslice ~]#
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5:16 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #32 from Jens Petersen <petersen(a)redhat.com> ---
Cool
Also could you attach the output of:
$ rpm -qa --provides ghc\*devel | grep ^ghc-devel\( | sort
That would save time when comparing the ABI hashes.
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5:17 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #33 from Peter Robinson <pbrobinson(a)gmail.com> ---
# rpm -qa --provides ghc\*devel | grep ^ghc-devel\( | sort
ghc-devel(array-0.4.0.1-72eb1caf42d7f1e9e960760f41ef98d0)
ghc-devel(base-4.6.0.1-96bf6b6729ca53a5ac2cf45bb8b3cc3e)
ghc-devel(binary-0.5.1.1-070d1a748b38a86cefd3ecfe250c286a)
ghc-devel(bytestring-0.10.0.2-ea1d6622fb7aad447c7746744ecded40)
ghc-devel(containers-0.5.0.0-3b8b869ec10d44736414ab5bea776319)
ghc-devel(deepseq-1.3.0.1-aa1be128186a233c7290faf88620ffe5)
ghc-devel(ghc-prim-0.3.0.0-00db43fcd2f6e2a73243bdb496b765e0)
ghc-devel(integer-gmp-0.5.0.0-4093e6ff1e8ebdba04ec892df9ac108f)
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6:12 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #34 from Jens Petersen <petersen(a)redhat.com> ---
Okay thanks - I also verified locally that the provided hashes are unchanged so
this changes looks safe for Fedora Updates.
Peter tested the fedora happy and cabal-install packages
and later gives "Illegal instruction", so would need
a rebuild to work on non-neon.
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6:25 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |MODIFIED
--- Comment #35 from Jens Petersen <petersen(a)redhat.com> ---
Should get fixed in ghc-7.6.3-25.fc22.
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6:25 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|MODIFIED |POST
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7:36 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #36 from Jens Petersen <petersen(a)redhat.com> ---
Also built for f21
http://koji.fedoraproject.org/koji/buildinfo?buildID=549877
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7:37 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #37 from Jens Petersen <petersen(a)redhat.com> ---
There will be a backport later for f20.
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7:37 a.m.
New subject: [Bug 995419] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Fixed In Version| |ghc-7.6.3-25.fc21
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2:14 a.m.
New subject: [Bug 995419] [neon] [F20] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[neon] ghc throws an |[neon] [F20] ghc throws an
|illegal instruction error |illegal instruction error
|when compiling on nvidia |when compiling on nvidia
|tegra2 |tegra2
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2:26 a.m.
New subject: [Bug 995419] [F20] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Jens Petersen <petersen(a)redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[neon] [F20] ghc throws an |[F20] [neon] ghc throws an
|illegal instruction error |illegal instruction error
|when compiling on nvidia |when compiling on nvidia
|tegra2 |tegra2
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4:18 a.m.
New subject: [Bug 995419] [F20] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
--- Comment #38 from Fedora End Of Life <endoflife(a)fedoraproject.org> ---
This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 20. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora 'version'
of '20'.
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version.
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8:18 p.m.
New subject: [Bug 995419] [F20] [neon] ghc throws an illegal instruction error when compiling on nvidia tegra2
https://bugzilla.redhat.com/show_bug.cgi?id=995419
Fedora End Of Life <endoflife(a)fedoraproject.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|POST |CLOSED
Resolution|--- |EOL
Last Closed| |2015-06-29 21:18:38
--- Comment #39 from Fedora End Of Life <endoflife(a)fedoraproject.org> ---
Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.
If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.
Thank you for reporting this bug and we are sorry it could not be fixed.
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