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June 2019

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Subject:
XFS memory allocation deadlock
From:
Bill Maidment <[log in to unmask]>
Reply To:
Bill Maidment <[log in to unmask]>
Date:
Wed, 26 Jun 2019 20:13:15 +1000
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Hi friends
I have run into a problem in SL7.6 copying a large KVM guest lvm 
snapshot file using cp --sparse=always
I get flooded with the following message:

XFS: cp(12985) possible memory allocation deadlock size 131088 in 
kmem_realloc (mode:0x250)

The copy ends eventually, but it takes much longer than I expected.
Has anyone else come across this? Googling doesn't throw much light on 
this.

-- 
Cheers
Bill

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