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Created on 2014-10-30 11:51 by bkabrda, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Files | ||||
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| File name | Uploaded | Description | Edit | |
| test_gdb-ppc64le-and-entry-values-fix.patch | bkabrda, 2014-10-30 11:51 | review | ||
| test_gdb_entry_values.patch | serhiy.storchaka, 2015-02-05 12:07 | review | ||
| Messages (9) | |||
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| msg230265 - (view) | Author: Bohuslav "Slavek" Kabrda (bkabrda) * | Date: 2014-10-30 11:51 | |
The attached patch fixes two test_gdb problems that can occur under some circumstances: - With new GDB (I think version >= 7.4.0, but I'm not sure about the precise version), GDB sometimes prints "entry-values" for variables, which can lead to failures like: "AssertionError: 'v@entry=()' != '()'". The cure for that is using "set print entry-values no" in GDB. I think this is also the root cause of issue 17126. - While building on ppc64 little endian for Fedora, we experienced GDB printing program counter for the first frame, which breaks regular expressions matching in tests, e.g. instead of #0 in PyObject_Print the lines can look like #0 0x00003fffb7dd1798 in PyObject_Print I've talked to Fedora's GDB maintainer and I've been told that this can happen and it's not a GDB bug - GDB does not guarantee this. Therefore the second part of the attached patch turns printing program counters for *all* frames using "set print address off" to achieve same GDB output everywhere. |
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| msg232497 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) *  |
Date: 2014-12-11 21:41 | |
test_gdb is failed on my computer (gdb 7.7) and I confirm that the patch fixes it. |
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| msg235095 - (view) | Author: Roundup Robot (python-dev)  |
Date: 2015-01-31 09:51 | |
New changeset 47a9cb7ec0cb by Serhiy Storchaka in branch '2.7': Issue #22765: Fixed test_gdb failures. Supressed unexpected gdb output. https://hg.python.org/cpython/rev/47a9cb7ec0cb New changeset 5b5a581d91c8 by Serhiy Storchaka in branch '3.4': Issue #22765: Fixed test_gdb failures. Supressed unexpected gdb output. https://hg.python.org/cpython/rev/5b5a581d91c8 New changeset 3813a5282eac by Serhiy Storchaka in branch 'default': Issue #22765: Fixed test_gdb failures. Supressed unexpected gdb output. https://hg.python.org/cpython/rev/3813a5282eac |
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| msg235119 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * |
Date: 2015-01-31 16:35 | |
Thank you for your contribution Bohuslav. |
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| msg235430 - (view) | Author: STINNER Victor (vstinner) * |
Date: 2015-02-05 11:21 | |
> New changeset 5b5a581d91c8 by Serhiy Storchaka in branch '3.4': > Issue #22765: Fixed test_gdb failures. Supressed unexpected gdb output. > https://hg.python.org/cpython/rev/5b5a581d91c8 Since this change, test_gdb fails on "AMD64 OpenIndiana 3.x": http://buildbot.python.org/all/builders/AMD64%20OpenIndiana%203.x/builds/9176/ See also issue #23381.. |
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| msg235431 - (view) | Author: STINNER Victor (vstinner) * |
Date: 2015-02-05 11:25 | |
A workaround is to check (once) that the command "set print entry-values no" and "set print address off" are supported. Gdb provides its version in the Python API as a string: gdb.VERSION (ex: 'Fedora 7.8.2-38.fc21'). |
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| msg235432 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * |
Date: 2015-02-05 12:07 | |
Here is a patch which adds command 'set print entry-values no' only for gdb version >= 7.4. |
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| msg235466 - (view) | Author: Roundup Robot (python-dev) |
Date: 2015-02-06 07:02 | |
New changeset 30e6c8caa5b9 by Serhiy Storchaka in branch '3.4': Issue #23881: Only use entry-values with gdb 7.4 in tests. https://hg.python.org/cpython/rev/30e6c8caa5b9 New changeset 981e108039f1 by Serhiy Storchaka in branch 'default': Issue #23881: Only use entry-values with gdb 7.4 in tests. https://hg.python.org/cpython/rev/981e108039f1 New changeset cee39701b280 by Serhiy Storchaka in branch '2.7': Issue #23881: Only use entry-values with gdb 7.4 in tests. https://hg.python.org/cpython/rev/cee39701b280 |
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| msg235467 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) * |
Date: 2015-02-06 07:05 | |
Actually this is #23381, not #23881. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:09 | admin | set | github: 66954 |
| 2015-02-06 07:09:08 | serhiy.storchaka | set | status: open -> closed resolution: fixed |
| 2015-02-06 07:05:04 | serhiy.storchaka | set | messages: + msg235467 |
| 2015-02-06 07:02:08 | python-dev | set | messages: + msg235466 |
| 2015-02-05 12:07:28 | serhiy.storchaka | set | files:
+ test_gdb_entry_values.patch messages: + msg235432 |
| 2015-02-05 11:25:58 | vstinner | set | messages: + msg235431 |
| 2015-02-05 11:21:43 | vstinner | set | status: closed -> open nosy: + vstinner messages: + msg235430 resolution: fixed -> (no value) |
| 2015-01-31 16:35:46 | serhiy.storchaka | set | status: open -> closed resolution: fixed messages: + msg235119 stage: commit review -> resolved |
| 2015-01-31 09:51:57 | python-dev | set | nosy:
+ python-dev messages: + msg235095 |
| 2015-01-18 17:50:28 | serhiy.storchaka | set | assignee: serhiy.storchaka |
| 2014-12-11 21:41:18 | serhiy.storchaka | set | messages:
+ msg232497 stage: patch review -> commit review |
| 2014-12-11 12:13:26 | serhiy.storchaka | set | nosy:
+ serhiy.storchaka stage: patch review type: behavior versions: + Python 3.4 |
| 2014-10-30 18:57:38 | pitrou | set | nosy:
+ dmalcolm |
| 2014-10-30 11:51:46 | bkabrda | create | |