Bug 915671 - Truncated coredump with abrt-2.0.20, kernel 3.7.9-201.fc18.x86_64
Summary: Truncated coredump with abrt-2.0.20, kernel 3.7.9-201.fc18.x86_64
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: abrt
Version: 18
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Denys Vlasenko
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:b6cff96a06f5107cc0ec101a538...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-02-26 10:06 UTC by Paul Lipps
Modified: 2014-02-05 23:04 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2014-02-05 23:04:26 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)
Entire directory of ccpp from arbt (276 bytes, application/zip)
2013-02-26 12:00 UTC, Paul Lipps
no flags Details
Entire directory of ccpp from arbt (11.56 KB, application/gzip)
2013-02-28 02:56 UTC, Paul Lipps
no flags Details
Truncated coredump (62.17 KB, application/octet-stream)
2013-09-06 11:36 UTC, Denys Vlasenko
no flags Details

Description Paul Lipps 2013-02-26 10:06:17 UTC
Description of problem:
Process /user/bin/nepomukservicestub was killed by signal 11 (SIGSEGV) - abrt

--- Running report_uReport ---
Generating backtrace
eu-unstrip: No modules recognized in core file
Running eu-unstrip failed
Server side error: '"Validation failed: missing mandatory element 'core_backtrace'"'
(exited with 1)

Version-Release number of selected component:
abrt-2.0.20

Additional info:
kernel:         3.7.9-201.fc18.x86_64
type:           libreport

Comment 1 Jiri Moskovcak 2013-02-26 11:11:55 UTC
Can you please send us the core of the crashed application? It should be in $HOME/.cache/abrt/ccpp-<something>

Comment 2 Paul Lipps 2013-02-26 12:00:53 UTC
Created attachment 702824 [details]
Entire directory of ccpp from arbt

~/.cache/abrt/spool/ccpp-2013-02-26-04:02:21-1855/

Comment 3 Jiri Moskovcak 2013-02-27 12:49:01 UTC
Thank you for the effort, but unfortunately that archive is empty, can you please re-pack it and re-upload it?

Comment 4 Paul Lipps 2013-02-28 02:56:17 UTC
Created attachment 703758 [details]
Entire directory of ccpp from arbt

Output of ~/.cache/abrt/spool/ccpp-2013-02-26-04:02:21-1855

Comment 5 Denys Vlasenko 2013-09-06 11:34:08 UTC
The coredump is truncated. I'm attaching it separately.

Comment 6 Denys Vlasenko 2013-09-06 11:36:03 UTC
Created attachment 794671 [details]
Truncated coredump

ELF utilities balk on it in various ways:

$ objdump -drsx coredump
objdump: coredump: File truncated
$ eu-unstrip --core=coredump -n
eu-unstrip: No modules recognized in core file
$ readelf -aW coredump >OUT
readelf: Error: Unable to read in 0x8398 bytes of notes

Comment 7 Denys Vlasenko 2013-11-05 15:02:49 UTC
I propose that we file a kernel bug "allow coredump helper to know when kernel truncates the coredump".

Currently, kernel sends coredump data to the helper over a pipe.
Pipes (so far) have no facility to report errors from writer to reader: writer can only close the fd, resulting in EOF on reader's side.
What we want here is to get a -ESOMEERROR on reader side when kernel discovers that it can't finish the coredump correctly - and there *are* cases when that happens.

Comment 8 Fedora End Of Life 2013-12-21 15:24:34 UTC
This message is a reminder that Fedora 18 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 18. 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 WONTFIX if it remains open with a Fedora 
'version' of '18'.

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 prior to Fedora 18's end of life.

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able to fix it before Fedora 18 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior to Fedora 18's end of life.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 9 Fedora End Of Life 2014-02-05 23:04:26 UTC
Fedora 18 changed to end-of-life (EOL) status on 2014-01-14. Fedora 18 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
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