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Bug 1637910

Summary: [abrt] [faf] tuna: set_irq_affinity_filename(): /usr/lib/python2.7/site-packages/tuna/tuna.py killed by IOError
Product: Red Hat Enterprise Linux 7 Reporter: Vladimir Benes <vbenes>
Component: tunaAssignee: John Kacur <jkacur>
Status: CLOSED ERRATA QA Contact: Qiao Zhao <qzhao>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.6CC: bhu, jkacur, vbenes
Target Milestone: rc   
Target Release: ---   
Hardware: s390x   
OS: Unspecified   
URL: https://faf.lab.eng.brq.redhat.com/faf/reports/bthash/52fc694afc5100b9f7cd5635af3f8f2b2ffdf928/
Whiteboard:
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of:
: 1688908 (view as bug list) Environment:
Last Closed: 2019-08-06 12:48:53 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1649541, 1688908    
Attachments:
Description Flags
Exit gracefully on s390 or s390x for unsupported operations none

Description Vladimir Benes 2018-10-10 10:12:53 UTC 
This bug has been created based on an anonymous crash report requested by the package maintainer.

Report URL: https://faf.lab.eng.brq.redhat.com/faf/reports/bthash/52fc694afc5100b9f7cd5635af3f8f2b2ffdf928/

Present since 7.4 :-(
Comment 6 John Kacur 2018-10-18 21:13:55 UTC 
Here is another example and how to invokve.
The problem is that s390 / s390x has a different irq hardware model

tuna -c1 -i
Traceback (most recent call last):
  File "/usr/bin/tuna", line 710, in <module>
    main()
  File "/usr/bin/tuna", line 546, in main
    tuna.isolate_cpus(cpu_list, get_nr_cpus())
  File "/usr/lib/python2.7/site-packages/tuna/tuna.py", line 420, in isolate_cpus
    affinity = parse_irq_affinity_filename("default_smp_affinity", nr_cpus)
  File "/usr/lib/python2.7/site-packages/tuna/tuna.py", line 339, in parse_irq_affinity_filename
    f = file("/proc/irq/%s" % filename)
IOError: [Errno 2] No such file or directory: '/proc/irq/default_smp_affinity'
[root@ibm-z-37 proc]# arch
Comment 7 John Kacur 2019-03-14 17:13:37 UTC 
We can detect when tun tries to access the non existent file /proc/irq/default_smp_affinity
and exit gracefully, like this

[root@ibm-z-03 tuna]# ./tuna-cmd.py -c1 -i
This operation is not supported on s390
tuna: [Errno 2] No such file or directory: '/proc/irq/default_smp_affinity'
Comment 8 John Kacur 2019-03-14 17:18:10 UTC 
Created attachment 1544121 [details]
Exit gracefully on s390 or s390x for unsupported operations
Comment 13 errata-xmlrpc 2019-08-06 12:48:53 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, 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-2019:2116