# Why dmesg will log "failed to add device handler: -22 "

**URL:** <https://forums.suse.com/t/why-dmesg-will-log-failed-to-add-device-handler-22/30186>\
**Category:** SLES Hardware\
**Created:** [August 17, 2017, 8:48am UTC](https://forums.suse.com/t/why-dmesg-will-log-failed-to-add-device-handler-22/30186 "2017-08-17T08:48:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Benyu](https://avatars.discourse-cdn.com/v4/letter/b/cc9497/32.png) [@Benyu](https://forums.suse.com/u/Benyu)\
**Post date:** [August 17, 2017, 8:48am UTC](https://forums.suse.com/t/why-dmesg-will-log-failed-to-add-device-handler-22/30186/1 "2017-08-17T08:48:58Z")

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Why dmesg will log below information, Is it my hardware issue??

scsi 14:0:0:0: alua: Attach failed (-22)  
scsi 14:0:0:0: failed to add device handler: -22

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<div class="post-metadata">

**Author:** ![smflood](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/smflood/32/10576_2.png) [@smflood](https://forums.suse.com/u/smflood)\
**Post date:** [August 17, 2017, 12:44pm UTC](https://forums.suse.com/t/why-dmesg-will-log-failed-to-add-device-handler-22/30186/2 "2017-08-17T12:44:52Z")

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On 17/08/17 06:54, Benyu wrote:  
[color=blue]

> Why dmesg will log below information, Is it my hardware issue??
> 
> scsi 14:0:0:0: alua: Attach failed (-22)  
> scsi 14:0:0:0: failed to add device handler: -22[/color]

Is the same system as  
[https://forums.suse.com/showthread.php?9821-Why-dmesg-will-log-those-message](https://forums.suse.com/showthread.php?9821-Why-dmesg-will-log-those-message)  
?

Would you care to provide us with some information about the device  
which is failing to attach?

## HTH.

Simon  
SUSE Knowledge Partner

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