** Changed in: fftw3 (Debian)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1843733
Title:
fftw3 ftbfs in eoan (armhf only)
Status in FFTW:
** Changed in: fftw3 (Debian)
Status: Unknown => Confirmed
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Title:
fftw3 ftbfs in eoan (armhf only)
Status in FFTW:
New
** Bug watch added: Debian Bug tracker #943396
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943396
** Also affects: fftw3 (Debian) via
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943396
Importance: Unknown
Status: Unknown
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We probably don't need to fix eoan too (?)
** Changed in: fftw3 (Ubuntu Eoan)
Status: In Progress => Won't Fix
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Title:
This bug was fixed in the package fftw3 - 3.3.8-2ubuntu1
---
fftw3 (3.3.8-2ubuntu1) focal; urgency=medium
* debian/rules: Disable Neon for armhf single precision builds to avoid
crashes. It's unclear if this is an fftw3 internal bug in its code
generator (which fftw3 does
Fix proposed to Debian:
https://salsa.debian.org/science-team/fftw3/merge_requests/1
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https://bugs.launchpad.net/bugs/1843733
Title:
fftw3 ftbfs in eoan (armhf only)
There's an additional bug that's slowing me down right now:
If you run 'bench' under gdb or just compile the package using gcc-8
then 'bench' spins forever at 100% CPU never completing any tests.
I will try to avoid having to fix that bug here...
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** Changed in: fftw3 (Ubuntu Eoan)
Status: Confirmed => In Progress
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Title:
fftw3 ftbfs in eoan (armhf only)
Status in
** Changed in: fftw3
Status: Unknown => New
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Title:
fftw3 ftbfs in eoan (armhf only)
Status in FFTW:
New
Status in fftw3
When I build the native armhf tarball on armhf and then run the same
command I find many different bugs:
$ valgrind ./bench --verify ofr108*118
...
==27624== ERROR SUMMARY: 8257294 errors from 859 contexts (suppressed: 0 from 0)
This is why I was reluctant to use Valgrind. Because more often
Also without Valgrind the above command does not crash at all on armhf
for me. So I'm now working on the theory this bug is a consequence of
the deb's custom build flags, which includes neon supporting the idea in
comment #3.
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** Also affects: fftw3 via
https://github.com/FFTW/fftw3/issues/182
Importance: Unknown
Status: Unknown
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Title:
fftw3
Reported upstream on https://github.com/FFTW/fftw3/issues/182 , with
some luck they have an idea about the bug
** Bug watch added: github.com/FFTW/fftw3/issues #182
https://github.com/FFTW/fftw3/issues/182
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Trying to debug a bit on a canonistack instance
==5906== Command: ./bench --verify ofr108*118
==5906==
==5906== Invalid write of size 8
==5906==at 0x49174A8: vst1_f32 (arm_neon.h:10876)
==5906==by 0x49174A8: ST (simd-neon.h:119)
==5906==by 0x49174A8: n1fv_9 (n1fv_9.c:230)
==5906==
persists:
https://launchpad.net/ubuntu/+archive/test-rebuild-20190906/+build/17546506
** Changed in: fftw3 (Ubuntu Eoan)
Status: Incomplete => Confirmed
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So far I can't reproduce any crash in the tests on armhf (or aarch64).
But I haven't tried everything yet...
In the meantime, can anyone reproduce the failure and produce a fresh
log? If so, can you verify for me which binary is crashing?
** Changed in: fftw3 (Ubuntu Eoan)
Status: In
** Changed in: fftw3 (Ubuntu Eoan)
Status: Confirmed => In Progress
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Title:
fftw3 ftbfs in eoan (armhf only)
Status in
** Changed in: fftw3 (Ubuntu)
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
** Also affects: fftw3 (Ubuntu Eoan)
Importance: High
Assignee: Daniel van Vugt (vanvugt)
Status: Confirmed
** Tags removed: rls-ee-incoming
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