This bug was fixed in the package apport - 2.0.1-0ubuntu17.8
---------------
apport (2.0.1-0ubuntu17.8) precise-proposed; urgency=medium
[ Martin Pitt ]
* report.py, add_gdb_info(): Check for truncated core dumps, and set
UnreportableReason and raise an IOError on them. Handle this in
apport-retrace and whoopsie-upload-all to fail properly instead of
silently producing broken Stacktraces. (LP: #1354571)
-- Brian Murray <br...@ubuntu.com> Tue, 28 Oct 2014 14:34:44 -0700
** Changed in: apport (Ubuntu Precise)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1354571
Title:
apport-retrace ignores warnings from gdb
Status in “apport” package in Ubuntu:
Fix Released
Status in “apport” source package in Precise:
Fix Released
Status in “apport” source package in Trusty:
Fix Released
Bug description:
[Impact]
Crash reports with damaged core dumps are being sent to the Ubuntu Error
Tracker, where they are added to the retracing queue and then an attempt is
made to retrace them. These retraces fail because the core dump is damaged so
resources are wasted. We should stop sending these to the Error Tracker.
[Test Case]
apport's test_report.py has gained a new test called
test_add_gdb_info_damaged which tests that a crash report with a damaged core
dump raises an IOError.
Running this test with the version of the package in trusty-updates will fail
with an AssertionError.
Running the test with the version of the package from trusty-proposed will
pass.
I was trying to investigate a failed retrace on armhf and received the
following when running apport-retrace with -g.
Calling gdb command: gdb-multiarch --ex 'set architecture arm' --ex 'set
gnutarget elf32-littlearm' --ex 'set debug-file-directory /tmp/apport
-utopic/usr/lib/debug' --ex 'set solib-absolute-prefix /tmp/apport-utopic'
--ex 'file "/tmp/apport-utopic//usr/lib/ubuntu-push-client/signing-
helper"' --ex 'core-file /tmp/apport_core_36z3Va'
GNU gdb (Ubuntu 7.7-0ubuntu3.2) 7.7
Copyright (C) 2014 Free Software Foundation, Inc.
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and "show warranty" for details.
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Type "show configuration" for configuration details.
For bug reporting instructions, please see:
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The target architecture is assumed to be arm
Reading symbols from
/tmp/apport-utopic//usr/lib/ubuntu-push-client/signing-helper...Reading symbols
from /tmp/apport-utopic/usr/lib/debug/.bu
ild-id/0d/28e75c6b9149132f8940077618a904989a75ed.debug...done.
done.
BFD: Warning: /tmp/apport_core_36z3Va is truncated: expected core file size
>= 19316736, found: 9502720.
[New LWP 15327]
[New LWP 15530]
[New LWP 15321]
Cannot access memory at address 0xb6fa7948
Cannot access memory at address 0xb6fa7944
When running apport-retrace with -o, a new crash file is created with
a broken Stacktrace. This makes sense given that the core file is
corrupt.
However, I think apport-retrace should do something different here, as
you have no idea why the retraced report is bad. Maybe it should write
a RetraceFailure key to the report, not write the report at all, or
just exit with an error regarding the core file size difference.
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