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Bug 2084358 - multipath removal (multipath -f) should return non zero when attempted on a non existent device
Summary: multipath removal (multipath -f) should return non zero when attempted on a n...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: device-mapper-multipath
Version: 9.0
Hardware: x86_64
OS: Linux
medium
low
Target Milestone: rc
: 9.1
Assignee: Ben Marzinski
QA Contact: Lin Li
URL:
Whiteboard:
Depends On: 2052054
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-05-11 23:56 UTC by Ben Marzinski
Modified: 2022-11-15 13:04 UTC (History)
8 users (show)

Fixed In Version: device-mapper-multipath-0.8.7-9.el9
Doc Type: Bug Fix
Doc Text:
Cause: "multipath -f <device>" was returning success if there was no work that needed to be done. Consequence: If "multipath -f" was run on a non-existent or non-multipath device, it would return success, since there was no device to remove Fix: multipath now returns failure when a remove is attempted on an invalid device. Result: running "multipath -f" on a non-existent device now fails.
Clone Of: 2052054
Environment:
Last Closed: 2022-11-15 11:16:24 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-121783 0 None None None 2022-05-12 00:03:33 UTC
Red Hat Product Errata RHBA-2022:8313 0 None None None 2022-11-15 11:16:41 UTC

Description Ben Marzinski 2022-05-11 23:56:21 UTC 
+++ This bug was initially created as a clone of Bug #2052054 +++

Description of problem:
[root@hayes-02 ~]#  multipath -ll
mpatha (36d094660650d1e0022bd29e81db0cefc) dm-0 DELL,PERC H330 Adp
size=1.8T features='0' hwhandler='0' wp=rw
`-+- policy='service-time 0' prio=1 status=active
  `- 0:2:1:0  sdb 8:16  active ready running
[root@hayes-02 ~]#
[root@hayes-02 ~]# multipath -f foobar
[root@hayes-02 ~]# echo $?
0
[root@hayes-02 ~]# multipath -f mpatha
[root@hayes-02 ~]# echo $?
0
[root@hayes-02 ~]#  multipath -ll


Version-Release number of selected component (if applicable):
device-mapper-multipath-0.8.4-21.el8.x86_64    BUILT: Tue 18 Jan 2022 10:22:51 PM CST
kernel-4.18.0-360.el8    BUILT: Sun Jan 16 20:27:55 CST 2022
Comment 1 Ben Marzinski 2022-05-17 16:44:11 UTC 
Multipath now returns an error if you try to remove a non-existent device.
Comment 4 Lin Li 2022-06-01 10:18:32 UTC 
Verified on device-mapper-multipath-0.8.7-9.el9
[root@storageqe-05 ~]# rpm -qa | grep multipath
device-mapper-multipath-libs-0.8.7-9.el9.x86_64
device-mapper-multipath-0.8.7-9.el9.x86_64

[root@storageqe-05 ~]# multipath -ll
360a98000324669436c2b45666c567865 dm-3 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 3:0:0:0 sdj 8:144 active ready running
| `- 4:0:1:0 sdf 8:80  active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 3:0:1:0 sdn 8:208 active ready running
  `- 4:0:0:0 sdb 8:16  active ready running
360a98000324669436c2b45666c567867 dm-4 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 3:0:0:1 sdk 8:160 active ready running
| `- 4:0:1:1 sdg 8:96  active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 3:0:1:1 sdo 8:224 active ready running
  `- 4:0:0:1 sdc 8:32  active ready running
360a98000324669436c2b45666c567869 dm-5 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 3:0:0:2 sdl 8:176 active ready running
| `- 4:0:1:2 sdh 8:112 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 3:0:1:2 sdp 8:240 active ready running
  `- 4:0:0:2 sdd 8:48  active ready running
360a98000324669436c2b45666c56786b dm-6 NETAPP,LUN
size=2.0G features='3 queue_if_no_path pg_init_retries 50' hwhandler='1 alua' wp=rw
|-+- policy='service-time 0' prio=50 status=active
| |- 3:0:0:3 sdm 8:192 active ready running
| `- 4:0:1:3 sdi 8:128 active ready running
`-+- policy='service-time 0' prio=10 status=enabled
  |- 3:0:1:3 sdq 65:0  active ready running
  `- 4:0:0:3 sde 8:64  active ready running

[root@storageqe-05 ~]# multipath -f foobar
13227.669622 | libdevmapper: ioctl/libdm-iface.c(1947): device-mapper: table ioctl on foobar  failed: No such device or address
13227.669667 | foobar is not a multipath device  <-----------------------------------
[root@storageqe-05 ~]# echo $?
1   <-----------------------------------
[root@storageqe-05 ~]# 
[root@storageqe-05 ~]# multipath -f 360a98000324669436c2b45666c56786b
[root@storageqe-05 ~]# echo $?
0



Test result: multipath removal (multipath -f) returns non zero when attempted on a non existent device
Comment 6 errata-xmlrpc 2022-11-15 11:16:24 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 (device-mapper-multipath 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-2022:8313
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