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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
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: nss
Version: 7.9
Hardware: x86_64
OS: Linux
Target Milestone: rc
: ---
Assignee: nss-nspr-maint
QA Contact: Ivan Nikolchev
Depends On:
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:
Last Closed: 2021-10-12 15:26:38 UTC
Target Upstream Version:

Attachments (Terms of Use)

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):

How reproducible:

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- daos-client- daos-tests- daos-server- 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

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.


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