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.
Bug 1909150 - yum gets deadlocked/hung up (indefinitely) waiting for urlgrabber-ext-down
Summary: yum gets deadlocked/hung up (indefinitely) waiting for urlgrabber-ext-down
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: nss
Version: 7.9
Hardware: x86_64
OS: Linux
high
urgent
Target Milestone: rc
: ---
Assignee: nss-nspr-maint
QA Contact: Ivan Nikolchev
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-12-18 13:34 UTC by Brian J. Murrell
Modified: 2021-10-12 16:09 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-10-12 15:26:38 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github rpm-software-management yum issues 127 0 None open yum gets deadlocked/hung up (indefinitely) waiting for urlgrabber-ext-down 2021-01-18 08:54:30 UTC
Red Hat Product Errata RHBA-2021:3793 0 None None None 2021-10-12 15:26:50 UTC

Description Brian J. Murrell 2020-12-18 13:34:05 UTC 
Description of problem:
Yum is getting deadlocked trying to do an update.

Version-Release number of selected component (if applicable):
yum-3.4.3-168

How reproducible:
Intermittent

Steps to Reproduce:
Not really known

Actual results:
Yum deadlocks

Expected results:
Yum should not deadlock

Additional info:
The process tree looks like this:

 8702 ?        S      0:05  |       \_ /usr/bin/python /usr/bin/yum -y --disablerepo=* --enablerepo=repo.dc.hpdd.intel.com_repository_*,build.hpdd.intel.com_job_daos-stack* install --exclude openmpi daos-1.1.2.1-1.5456.g02ce0510.el7.x86_64 daos-client-1.1.2.1-1.5456.g02ce0510.el7.x86_64 daos-tests-1.1.2.1-1.5456.g02ce0510.el7.x86_64 daos-server-1.1.2.1-1.5456.g02ce0510.el7.x86_64 openmpi3 hwloc ndctl fio patchutils ior-hpc-daos-0 romio-tests-cart-4-daos-0 testmpio-cart-4-daos-0 mpi4py-tests-cart-4-daos-0 hdf5-mpich2-tests-daos-0 hdf5-openmpi3-tests-daos-0 hdf5-vol-daos-mpich2-tests-daos-0 hdf5-vol-daos-openmpi3-tests-daos-0 MACSio-mpich2-daos-0 MACSio-openmpi3-daos-0 mpifileutils-mpich-daos-0
 8705 ?        S      0:00  |           \_ /usr/bin/python /usr/libexec/urlgrabber-ext-down
 8711 ?        S      0:00  |           \_ /usr/bin/python /usr/libexec/urlgrabber-ext-down
 8712 ?        S      0:00  |           \_ /usr/bin/python /usr/libexec/urlgrabber-ext-down

The status of the processes are:

# /tmp/strace -f -p 8702
/tmp/strace: Process 8702 attached
wait4(8711, ^C/tmp/strace: Process 8702 detached
 <detached ...>
# /tmp/strace -f -p 8705
/tmp/strace: Process 8705 attached
read(0, ^C/tmp/strace: Process 8705 detached
 <detached ...>
# /tmp/strace -f -p 8711
/tmp/strace: Process 8711 attached
futex(0x1444c90, FUTEX_WAIT_PRIVATE, 2, NULL^C/tmp/strace: Process 8711 detached
 <detached ...>
# /tmp/strace -f -p 8712
/tmp/strace: Process 8712 attached
futex(0x2174c90, FUTEX_WAIT_PRIVATE, 2, NULL^C/tmp/strace: Process 8712 detached
 <detached ...>

which to me looks like 8702, 8711 and 8705 are deadlocked all waiting/blocked on each other.

This is gumming up our automated CI and leaves test nodes hung for days until it is noticed and killed.
Comment 14 Bob Relyea 2021-06-23 22:28:58 UTC 
Ooops this bug need zstream+ and pm_ack+. Don't know why it didn't automatically get pm_ack with the devel & qa_acks.
Comment 15 Simo Sorce 2021-06-24 12:55:59 UTC 
Acked
Comment 37 errata-xmlrpc 2021-10-12 15:26:38 UTC 
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 (nss, nss-softokn, nss-util, and nspr bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:3793
Note You need to log in before you can comment on or make changes to this bug.