Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Description of problem:
Blackbox output will not contain logging information if logging format specifies string len/precision.
For example.
If we use the format log("test [%.10s] - [%s]", "some_text", some_more_text"), every argument including and after the "%.10s" will be empty.
So the output would be "test [] - []" when we would expect "test [some_text] - [some_more_text]
This affects the usefulness of blackbox output for debugging purposes. This specifically affects Pacemaker's use of blackbox.
Version-Release number of selected component (if applicable):
0.14.2-3
How reproducible:
Always.
I've tested the upstream patches, and it appears that they resolve the use-case in the description. However, while testing the patches I ran across another very similar situation where blackbox output is being truncated.
In my pacemaker log file I have the following msg.
Jan 03 20:01:49 [32253] 18builder pacemakerd: debug: update_node_processes: Node 18builder now has process list: 00000000000000000000000000000002 (was 00000000000000000000000000000000)
but, in the blackbox output the same message is truncated to look like this.
debug Jan 03 20:01:49 update_node_processes(620):0: Node 18builder now has process list: 00000000000000000000000000000
This situation needs to be resolved as well.
-- Vossel
(In reply to comment #4)
> I've tested the upstream patches, and it appears that they resolve the
> use-case in the description. However, while testing the patches I ran across
> another very similar situation where blackbox output is being truncated.
>
> In my pacemaker log file I have the following msg.
>
> Jan 03 20:01:49 [32253] 18builder pacemakerd: debug:
> update_node_processes: Node 18builder now has process list:
> 00000000000000000000000000000002 (was 00000000000000000000000000000000)
>
> but, in the blackbox output the same message is truncated to look like this.
>
> debug Jan 03 20:01:49 update_node_processes(620):0: Node 18builder now has
> process list: 00000000000000000000000000000
>
> This situation needs to be resolved as well.
>
> -- Vossel
this is the upstream patch to fix this issue: https://github.com/asalkeld/libqb/commit/739faa54fea57152d61e4c70bda3349982bac627
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
http://rhn.redhat.com/errata/RHBA-2013-1634.html
Description of problem: Blackbox output will not contain logging information if logging format specifies string len/precision. For example. If we use the format log("test [%.10s] - [%s]", "some_text", some_more_text"), every argument including and after the "%.10s" will be empty. So the output would be "test [] - []" when we would expect "test [some_text] - [some_more_text] This affects the usefulness of blackbox output for debugging purposes. This specifically affects Pacemaker's use of blackbox. Version-Release number of selected component (if applicable): 0.14.2-3 How reproducible: Always.