I'm getting a very similar error on 18.04.3 arm, except I didn't use
swift, I used GlusterFS and copied files to it.
Linux odroid 4.14.150-170 #1 SMP PREEMPT Tue Oct 22 12:31:29 -03 2019
armv7l armv7l armv7l GNU/Linux
[Sun Dec 8 04:21:13 2019] vmap allocation for size 1048576 failed: use
vmallo
I tried the kernel at http://people.canonical.com/~ppisati/linux-
image-3.5.0-31-highbank_3.5.0-31.52~549142a_armhf.deb , and I no longer
get the kernel crash. I did see the out of space error from swift-bench,
but it seems to be XFS running out of inodes:
user1@node4:/opt/stack/data/swift/drives/
** Patch added: "0003-xfs-don-t-use-speculative-prealloc-for-small-files.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176977/+attachment/3688908/+files/0003-xfs-don-t-use-speculative-prealloc-for-small-files.patch
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http://people.canonical.com/~ppisati/linux-
image-3.5.0-31-highbank_3.5.0-31.52~549142a_armhf.deb
other than the patch attached in #6, this kernel contains two more
patches that address the free space fragmentation we were seeing: this
kernel completely solves the problem for me, please test it.
** Tags added: patch
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https://bugs.launchpad.net/bugs/1176977
Title:
XFS instability on armhf under load
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Try this kernel:
http://people.canonical.com/~ppisati/linux-
image-3.5.0-29-highbank_3.5.0-29.49~7c4cebe8_armhf.deb
it's a Q/generic highbank kernel + the attached patch and it fixes the
fs corruption.
On the other hand, even with this fix applied, when the xfs partition
reaches ~25% of its capa
3.7.9 is affected, while 3.8.0 is not - i'm about to start a bisect.
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Title:
XFS instability on armhf under load
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reproducible on 3.7 (vanilla + multiv7_defconfig) too:
XFS (sda5): Mounting Filesystem
XFS (sda5): Ending clean mount
vmap allocation for size 2097152 failed: use vmalloc= to increase size.
vmap allocation for size 2097152 failed: use vmalloc= to increase size.
vmap allocation for size 2097152 fai
i can easily reproduce it using a real xfs partition, after following
the instruction found here to setup a single swift node:
http://docs.openstack.org/developer/swift/development_saio.html
and running swift-becn in a loop like this:
'while /bin/true; do swift-bench -x -c 20 -s 10 -n 100 -g 100
** Tags added: precise quantal
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Tags added: armhf
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Title:
XFS instability on
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
XFS
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