I sent an SRU request to the Ubuntu kernel team mailing list. However,
since Saucy will soon be EOL, we are only accepting critical CVE
patches.
It might be best to upgrade to Trusty, which should already have this
fix.
** Changed in: linux (Ubuntu Saucy)
Status: In Progress => Won't Fix
** Attachment removed: "Saucy x86_64 without the backports"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319003/+attachment/4123531/+files/saucy.png
** Attachment removed: "Saucy x86_64 with the backports"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319003/+attachment/41
** Attachment added: "Saucy x86_64 guests without the backports"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319003/+attachment/4123555/+files/saucy64.png
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** Attachment added: "Saucy x86_64 without the backports"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319003/+attachment/4123531/+files/saucy.png
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** Attachment added: "Saucy x86_64 with the backports"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319003/+attachment/4123532/+files/saucy-backports.png
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Joseph, apologies for the delay on this. I have finally managed to
retest the kernel you have provided.
For reference, I added the following disks to my server:
* 4 x Micron P320
* 2 x Intel 910s (presented as 4 separate SCSI devices)
* 1 x Fusion-io ioDrive2
I created 10 LVM Logical Volumes on e
Thanks for the prompt attention to this matter. My environment for
testing is currently busy, but I should be able to get access by the end
of next week (23/May). I'll comment as soon as I have some results.
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I built a Saucy test kernel with a cherry pick of commits:
bfe11d6de1c416cea4f3f0f35f864162063ce3fa
fbe363c476afe8ec992d3baf682670a4bd1b6ce6
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1319003/
Can you test this kernel and confirm if it resolves this bug or
** Also affects: linux (Ubuntu Saucy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Saucy)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Saucy)
Status: New => Triaged
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** Tags added: kernel-da-key saucy
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
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I am unable to collect logs with apport-collect as I do not have a set of
Ubuntu guests setup for repro at the moment.
I also believe logs are not relevant for this particular case.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Package changed: linux-meta (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1319003
Title:
Storage performance regression when Xen backend lacks persistent-
** Description changed:
Description of problem:
When used as a Xen guest, Ubuntu 13.10 may be slower than older releases in
terms of storage performance. This is due to the persistent-grants feature
introduced in xen-blkfront on the Linux Kernel 3.8 series. From 3.8 to 3.12
(inclusive), xen
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