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Bug 1799092

Summary: python36: FTBFS in Fedora rawhide/f32
Product: [Fedora] Fedora Reporter: Fedora Release Engineering <releng>
Component: python36Assignee: Victor Stinner <vstinner>
Status: CLOSED NEXTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 32CC: carl, cstratak, mhroncok, python-sig, steve.traylen, vstinner
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2020-02-13 22:51:02 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1750908    
Attachments:
Description Flags
build.log
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root.log
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state.log none

Description Fedora Release Engineering 2020-02-06 15:37:26 UTC 
python36 failed to build from source in Fedora rawhide/f32

https://koji.fedoraproject.org/koji/taskinfo?taskID=41257510


For details on the mass rebuild see:

https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
Please fix python36 at your earliest convenience and set the bug's status to
ASSIGNED when you start fixing it. If the bug remains in NEW state for 8 weeks,
python36 will be orphaned. Before branching of Fedora 33,
python36 will be retired, if it still fails to build.

For more details on the FTBFS policy, please visit:
https://fedoraproject.org/wiki/Fails_to_build_from_source
Comment 1 Fedora Release Engineering 2020-02-06 15:37:33 UTC 
Created attachment 1658271 [details]
build.log

file build.log too big, will only attach last 32768 bytes
Comment 2 Fedora Release Engineering 2020-02-06 15:37:35 UTC 
Created attachment 1658272 [details]
root.log

file root.log too big, will only attach last 32768 bytes
Comment 3 Fedora Release Engineering 2020-02-06 15:37:43 UTC 
Created attachment 1658273 [details]
state.log
Comment 4 Ben Cotton 2020-02-11 17:13:21 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora 32 development cycle.
Changing version to 32.
Comment 5 Miro Hrončok 2020-02-13 13:42:00 UTC 
AArch64 is bz1797052, but other architectures hang: armv7hl, x86_64, s390x
Comment 6 Victor Stinner 2020-02-13 15:24:03 UTC 
> https://koji.fedoraproject.org/koji/taskinfo?taskID=41257510
> AArch64 is bz1797052, but other architectures hang: armv7hl, x86_64, s390x

armv7hl, x86_64, s390x builds all stopped while running test_faulthandler.

Example: "0:04:04 load avg: 6.59 [125/406] test_faulthandler"

It's likely the same bug than bz#1799090: GCC miscompiles faulthandler._stack_overflow().

https://bugs.python.org/issue38965

And it has been fixed in master:

"bpo-38965: Fix faulthandler._stack_overflow() on GCC 10 (GH-17467)"
https://github.com/python/cpython/commit/8b787964e0a647caa0558b7c29ae501470d727d9

I proposed https://src.fedoraproject.org/rpms/python36/pull-request/39 to backport the fix (and also backport another fix which might bite us if we don't fix it).
Comment 7 Miro Hrončok 2020-02-13 22:50:34 UTC 
Running the build in f33 and f32. Should be fine. Thanks Victor!