** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Changed in: linux (Ubuntu)
Assignee: Taco Screen team (taco-screen-team) => Canonical Kernel Team
(canonical-kernel-team)
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https://bugs.launchpad.net/bugs/1651242
Title:
Ubuntu16.04.2KVM: Installing any package on Ubuntu16.04.2 guest having
NPIV disk shows traces: blk_update_request: I/O error, dev sda, sector
5006840
Status in linux package in Ubuntu:
Triaged
Bug description:
== Comment: #35 - Mauricio Faria De Oliveira - 2016-12-19 09:20:41 ==
Hi Canonical,
Could you please apply this patch [1] for 16.04.x HWE 4.8 ?
It has not yet been accepted by the block subsystem maintainer Jens Axboe,
but good a reviewed-by tag from Christoph Hellwig [2].
The change is very straightforward and clearly spottable/documented,
so if at all possible, I think it wouldn't be a problem for it to be SAUCE
commit for now.
Thank you,
[PATCH RESEND] block: allow WRITE_SAME commands with the SG_IO ioctl
[1] https://lkml.org/lkml/2016/12/15/503
[2] https://lkml.org/lkml/2016/12/19/132
== Comment: #36 - Mauricio Faria De Oliveira - 2016-12-19 12:39:24 ==
(In reply to comment #35)
> Hi Canonical,
>
> Could you please apply this patch [1] for 16.04.x HWE 4.8 ?
>
> It has not yet been accepted by the block subsystem maintainer Jens Axboe,
> but good a reviewed-by tag from Christoph Hellwig [2].
Hey, it just got word from Jens; added to 4.10 [3].
[3] https://lkml.org/lkml/2016/12/19/318
== Comment: #37 - Mauricio Faria De Oliveira - 2016-12-19 12:40:51 ==
(In reply to comment #36)
> (In reply to comment #35)
> > Hi Canonical,
> >
> > Could you please apply this patch [1] for 16.04.x HWE 4.8 ?
> >
> > It has not yet been accepted by the block subsystem maintainer Jens Axboe,
> > but good a reviewed-by tag from Christoph Hellwig [2].
>
> Hey, it just got word from Jens; added to 4.10 [3].
And here is it in his branch on g.k.o [4]
[4] http://git.kernel.org/cgit/linux/kernel/git/axboe/linux-
block.git/commit/?h=for-
linus&id=25cdb64510644f3e854d502d69c73f21c6df88a9
Bug History:
== Comment: #0 - Manjunatha H R - 2016-12-06 01:52:11 ==
Ubuntu16.04.2 KVM guest having NPIV disks shows following traces upon
installing any package:
root@lotg5:~# apt-get install -y python-paramiko
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
python-crypto python-ecdsa python-six
Suggested packages:
python-crypto-dbg python-crypto-doc
The following NEW packages will be installed:
python-crypto python-ecdsa python-paramiko python-six
0 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 404 kB of archives.
After this operation, 3,092 kB of additional disk space will be used.
Get:1 http://us.ports.ubuntu.com/ubuntu-ports xenial/main ppc64el
python-crypto ppc64el 2.6.1-6build1 [251 kB]
Get:2 http://us.ports.ubuntu.com/ubuntu-ports xenial/main ppc64el python-six
all 1.10.0-3 [10.9 kB]
Get:3 http://us.ports.ubuntu.com/ubuntu-ports xenial/main ppc64el
python-ecdsa all 0.13-2 [34.0 kB]
Get:4 http://us.ports.ubuntu.com/ubuntu-ports xenial/main ppc64el
python-paramiko all 1.16.0-1 [109 kB]
Fetched 404 kB in 5s (72.6 kB/s)
Selecting previously unselected package python-crypto.
(Reading database ... 104986 files and directories currently installed.)
Preparing to unpack .../python-crypto_2.6.1-6build1_ppc64el.deb ...
Unpacking python-crypto (2.6.1-6build1) ...
[ 529.051285] blk_update_request: I/O error, dev sda, sector 17096824
[ 529.175195] blk_update_request: I/O error, dev sda, sector 5009416
[ 529.239143] blk_update_request: I/O error, dev sda, sector 5009440
[ 529.303689] blk_update_request: I/O error, dev sda, sector 5009480
[ 529.375233] blk_update_request: I/O error, dev sda, sector 5009488
[ 529.455172] blk_update_request: I/O error, dev sda, sector 5009520
[ 529.535189] blk_update_request: I/O error, dev sda, sector 5009544
[ 529.595205] blk_update_request: I/O error, dev sda, sector 5009576
[ 529.675198] blk_update_request: I/O error, dev sda, sector 5009600
[ 529.755205] blk_update_request: I/O error, dev sda, sector 5009608
[ 534.103339] blk_update_request: I/O error, dev sda, sector 5005904
[ 534.187173] blk_update_request: I/O error, dev sda, sector 5005936
[ 534.251191] blk_update_request: I/O error, dev sda, sector 5006000
[ 534.323185] blk_update_request: I/O error, dev sda, sector 5006032
[ 534.407207] blk_update_request: I/O error, dev sda, sector 5006040
[ 534.487177] blk_update_request: I/O error, dev sda, sector 5006048
[ 534.555229] blk_update_request: I/O error, dev sda, sector 5006056
[ 534.639177] blk_update_request: I/O error, dev sda, sector 5006064
[ 534.703178] blk_update_request: I/O error, dev sda, sector 63468736
[ 534.783175] blk_update_request: I/O error, dev sda, sector 5006080
Selecting previously unselected package python-six.
Preparing to unpack .../python-six_1.10.0-3_all.deb ...
Unpacking python-six (1.10.0-3) ...
[ 539.179209] blk_update_request: I/O error, dev sda, sector 5006840
[ 539.271201] blk_update_request: I/O error, dev sda, sector 5095584
[ 539.335185] blk_update_request: I/O error, dev sda, sector 5095592
[ 539.415193] blk_update_request: I/O error, dev sda, sector 5095600
Selecting previously unselected package python-ecdsa.
Preparing to unpack .../python-ecdsa_0.13-2_all.deb ...
Unpacking python-ecdsa (0.13-2) ...
[ 539.547207] blk_update_request: I/O error, dev sda, sector 5006904
[ 539.627181] blk_update_request: I/O error, dev sda, sector 5006912
[ 539.707183] blk_update_request: I/O error, dev sda, sector 5006920
[ 539.779174] blk_update_request: I/O error, dev sda, sector 5006928
[ 539.843205] blk_update_request: I/O error, dev sda, sector 5006960
[ 539.923169] blk_update_request: I/O error, dev sda, sector 5006968
Selecting previously unselected package python-paramiko.
Preparing to unpack .../python-paramiko_1.16.0-1_all.deb ...
Unpacking python-paramiko (1.16.0-1) ...
Setting up python-crypto (2.6.1-6build1) ...
Setting up python-six (1.10.0-3) ...
Setting up python-ecdsa (0.13-2) ...
Setting up python-paramiko (1.16.0-1) ...
These traces are seen only on guest with uses NPIV disks.
Guest using following NPIV disks from host:
----------------------------------
root@lotkvm:~# virsh vol-list poolvhba0 --details
Name Path
Type Capacity Allocation
------------------------------------------------------------------------------------------------------------
unit:0:0:4 /dev/disk/by-path/pci-0001:09:00.0-fc-0x500507680215e2c6-lun-4
block 42.00 GiB 42.00 GiB
unit:0:0:5 /dev/disk/by-path/pci-0001:09:00.0-fc-0x500507680215e2c6-lun-5
block 31.00 GiB 31.00 GiB
unit:0:0:6 /dev/disk/by-path/pci-0001:09:00.0-fc-0x500507680215e2c6-lun-6
block 31.00 GiB 31.00 GiB
Guest XML for Disks:
---------------------------
<disk type='volume' device='lun'>
<driver name='qemu' type='raw' cache='none'/>
<source pool='poolvhba0' volume='unit:0:0:4'/>
<backingStore/>
<target dev='hd0' bus='scsi'/>
<alias name='scsi0-0-0-0'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='volume' device='lun'>
<driver name='qemu' type='raw' cache='none'/>
<source pool='poolvhba0' volume='unit:0:0:5'/>
<backingStore/>
<target dev='hd1' bus='scsi'/>
<alias name='scsi0-0-0-1'/>
<address type='drive' controller='0' bus='0' target='0' unit='1'/>
</disk>
<disk type='volume' device='lun'>
<driver name='qemu' type='raw' cache='none'/>
<source pool='poolvhba0' volume='unit:0:0:6'/>
<backingStore/>
<target dev='hd2' bus='scsi'/>
<alias name='scsi0-0-0-2'/>
<address type='drive' controller='0' bus='0' target='0' unit='2'/>
</disk>
Guest build:
----------------
Ubuntu16.04.2:
Linux lotg5 4.8.0-28-generic #30~16.04.1-Ubuntu SMP Mon Nov 21 12:02:06 UTC
2016 ppc64le ppc64le ppc64le GNU/Linux
Host build:
---------------
Ubuntu16.04.2
Linux lotkvm 4.8.0-28-generic #30~16.04.1-Ubuntu SMP Mon Nov 21 12:02:06 UTC
2016 ppc64le ppc64le ppc64le GNU/Linux
== Comment: #19 - Mauricio Faria De Oliveira - 2016-12-07 14:21:49 ==
Okay, the SCSI Write Same command is not being allowed for unprivileged users
(e.g., libvirt-qemu, which is used to run guests with libvirt) on this kernel.
By running the command as user libvirt-qemu in the host, the failure
can be reproduced.
Debugging the kernel.
root@lotkvm:~/mauricfo# sg_write_same -vv --10 --num 8 --xferlen 512 --lba
17096824 /dev/sdak
open /dev/sdak with flags=0x802
Default data-out buffer set to 512 zeros
Write same(10) cmd: 41 00 01 04 e0 78 00 00 08 00
Data-out buffer length=512
root@lotkvm:~/mauricfo# sudo -u libvirt-qemu sg_write_same -vv --10 --num 8
--xferlen 512 --lba 17096824 /dev/sdak
open /dev/sdak with flags=0x802
Default data-out buffer set to 512 zeros
Write same(10) cmd: 41 00 01 04 e0 78 00 00 08 00
Data-out buffer length=512
ioctl(SG_IO v3) failed: Operation not permitted (errno=1)
Write same: pass through os error: Operation not permitted
Write same(10): Sense category: -1, try '-v' option for more information
== Comment: #26 - Richard M. Scheller - 2016-12-12 15:56:50 ==
I installed the 4.8.0-131 test kernel on my Ubuntu 16.04 KVM host, dotkvm.
It fixed the guest multipath I/O problem that I reported in bug 149832, which
turned out to be a dup of this bug.
== Comment: #27 - Manjunatha H R - 2016-12-15 01:16:01 ==
(In reply to comment #25)
> Manju,
>
> Please pay attention to the emphasis that is present in the test-request
> comment:
> You installed the kernel in the guest.
Apologies, last time I missed to install patched kernel on the host.
Verified the same set of patches on lotkvm too, which helps to fix the
issue..
root@lotkvm:~# uname -r
4.8.0-131-generic
root@lotg5:~# apt-get install docker
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer
required:
linux-headers-4.4.0-52 linux-headers-4.4.0-52-generic
linux-image-4.4.0-52-generic linux-image-extra-4.4.0-52-generic
Use 'apt autoremove' to remove them.
The following NEW packages will be installed:
docker
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 11.9 kB of archives.
After this operation, 69.6 kB of additional disk space will be used.
Get:1 http://us.ports.ubuntu.com/ubuntu-ports xenial/universe ppc64el docker
ppc64el 1.5-1 [11.9 kB]
Fetched 11.9 kB in 0s (32.9 kB/s)
Selecting previously unselected package docker.
(Reading database ... 153115 files and directories currently installed.)
Preparing to unpack .../docker_1.5-1_ppc64el.deb ...
Unpacking docker (1.5-1) ...
Processing triggers for man-db (2.7.5-1) ...
Setting up docker (1.5-1) ...
Thanks,
Manju
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