Public bug reported:
Hi,
Using Ubuntu 18.04, kernel 4.15.0-47, with a Mellanox MCX556M-ECAT-S25
[1].
With the distro driver, it's impossible to increase the MTU of a
representor port :
$ sudo ip li set enp50s0f0_0 mtu 1501
RTNETLINK answers: Invalid argument
Whereas with the OFED driver [2], I
Public bug reported:
Hi,
Using Ubuntu 18.04, kernel 4.15.0-47, with a Mellanox MCX556M-ECAT-S25
[1].
With the distro driver, it's impossible to increase the MTU of a
representor port :
$ sudo ip li set enp50s0f0_0 mtu 1501
RTNETLINK answers: Invalid argument
Whereas with the OFED driver [2], I
*** This bug is a duplicate of bug 1824372 ***
https://bugs.launchpad.net/bugs/1824372
** This bug has been marked a duplicate of bug 1824372
mlx5 : not able to set a high MTU on the representor port for a VF
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Public bug reported:
Hi,
I have a Chelsio T62100-LP-CR and I'm trying to create a libvirt VM that
gets a VF from the NIC.
The following XML is used :
When starting the VM, libvirt fails with the following :
ubuntu@lubbock:~$ sudo virsh start vmaxi
Public bug reported:
Hi,
I have a server with 2 * Chelsio T62100-LP-CR. Whenever the server is
booted, the csiostor and cxgb4 modules will fight for the card.
If csiostor wins, the following is logged :
[9.331803] csiostor :21:00.6: PF: 6, Coming up as MASTER, HW state:
Initializing
...
Public bug reported:
Hi,
For the Mellanox NIC MT27800 (MCX556M-ECAT-S25 to be precise), the
maximum number of VF per PF can be configured in the firmware, by
running e.g. :
$ sudo mstconfig -d 32:00.1 set NUM_OF_VFS=127
If I set this NUM_OF_VFS to 64 or more, the creation of even a single VF
fa
Note : if NUM_OF_VFS is set to 32, VF creation works fine. If it's set
to 64 or above, VF creation fails. I haven't tested in between.
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Here is the reply from Mellanox support :
==
• There is a limitations on the firmware/driver for ConnectX-5 Socket direct
adapter
• There is a limitation on the number of total PFs+VFs that wecan
allocate on the adapter which is 256.
• The max number of VF's of each port/PF
Public bug reported:
Hi,
Using ubuntu 18.04 with kernel 4.15.0-47-generic, my Chelsio NIC can't
offload VXLAN with the distro drivers (features "tx-udp_tnl-
segmentation" and "tx-udp_tnl-csum-segmentation"), but with the OFED
driver ("ChelsioUwire-3.10.0.0"), it can.
Can we please get this in th
Hi,
This is indeed fixed in 5.1.0-rc6.
** Tags added: kernel-fixed-upstream
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Title:
csiostor and cxgb4 fight for the NIC
Status i
working kern.log
** Attachment added: "kern.log"
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Actually the cma_alloc error is present much before VF creation. dmesg
is attached.
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Title:
mlx5 : not able to set a high MTU on th
I am unable to test with latest mainline (5.1.0-050100rc6-generic) as
the creation of a single VF starts spamming dmesg with "cma: cma_alloc:
alloc failed, req-size: 1 pages, ret: -12"
** Tags added: kernel-bug-exists-upstream
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Sorry I won't be able to test 20.04 as I don't have a Chelsio NIC
anymore
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Title:
cxgb4 : no VXLAN offloading with distro driver, on
Sorry for various reasons I won't be able to test 20.04
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Title:
mlx5 : not able to set a high MTU on the representor port for a VF
Hi,
I got this on 4.4.0-116-generic :
[266447.178906] [ cut here ]
[266447.178919] WARNING: CPU: 0 PID: 3343 at
/build/linux-fQ94TU/linux-4.4.0/net/core/dev.c:2448
skb_warn_bad_offload+0xd1/0x120()
[266447.178924] qr-8a4bd2f3-04: caps=(0x0184075b59e9, 0x0184075b5
By the way the task blocks on the following :
==> /proc/54255/task/54255/stack <==
[] wakeup_preempt_entity.isra.6+0x7c/0x90
[] __switch_to+0x1f8/0x350
[] get_request+0x29c/0x910
[] blk_queue_bio+0x164/0x500
[] generic_make_request+0x154/0x310
[] submit_bio+0xd4/0x1f0
[] ext4_io_submit+0x7c/0xb0
[
apport information
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** Description changed:
Hi,
I have a cloud running xenial/mitaka (with 18.02 charms).
Sometimes, an instance will take minutes to delete. I tracked down the
time taken to be file deletion :
Apr 23 07:23:00 ho
apport information
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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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4.19 appears to fix this problem
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Title:
arm64 soft lock crashes on nova-compute charm running
Status in linux package in Ubuntu:
What's the status of the SRU for this bug ? Thanks !
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Title:
Reboot/shutdown kernel panic on HP DL360/DL380 Gen9 w/ bionic 4.15.0
S
Public bug reported:
Hi,
Applying the Spectre/Meltdown patched kernel (3.2.0-133-generic -
precise ESM), it's not possible to boot my xen domUs anymore (dom0 is
fine). It works fine with 3.2.0-131-generic and 3.13.0-141-generic (lts-
trusty with Spectre/Meltdown mitigations).
This is with xen 4.
$ cat /proc/version_signature
Ubuntu 3.13.0-141.190~precise1-generic 3.13.11-ckt39
$ sudo lspci -vnvn
00:03.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] ES1000 [1002:515e] (rev 02) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:
apport information
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apport information
** Tags added: apport-collected
** Description changed:
Hi,
Applying the Spectre/Meltdown patched kernel (3.2.0-133-generic -
precise ESM), it's not possible to boot my xen domUs anymore (dom0 is
fine). It works fine with 3.2.0-131-generic and 3.13.0-141-generic (lt
apport information
** Attachment added: "WifiSyslog.txt"
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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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So we tested both Huawei driver 2.1.0.40+patch on 4.10.0-26-generic
(from the repo), and 4.10.0-25.29+lp1701316v201707070815 (which includes
2.1.0.28), and both work (at least mkfs.xfs, and loop jillrouleau
mentioned above).
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Title:
Soft lockup with "block nbdX: Attempted send on closed socket" spam
Status in linux package in Ubuntu:
Fix Relea
Hi Dan,
Thanks for your investigation. Sorry for the delay, but finally I
managed to reboot the compute nodes with the "notsc" kernel parameter. I
also disabled the qemu-nbd workaround.
Once that was done, it didn't take long for a node to crash, which would
indicate that notsc didn't fix the pro
Re-reading comment #318 Dan, I realize that we may be investigating a
symptom and not the root cause.
Whenever the soft-lockup happens, the serial console does get flooded
"block nbdX: Attempted send on closed socket". If the serial console
getting flooded causes soft lockups, then it is indeed a
I applied the patch, and it saved a reboot twice already, I think. dmesg
from one server : http://pastebin.ubuntu.com/14438525/
I have to stop the tests for the weekend though, I'll resume on Monday.
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I resumed the tests on Monday, and so far we're looking good. Your
change prevented ~10 locks so far, it would seem.
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Title:
Soft lo
Hi,
I'm sorry but 4.4 is too unstable on the hosts. We have to reboot and/or
power cycle them multiple times a day. We're back on 4.2 everywhere.
Haw gathered some perf data on a failing 4.4 host, perhaps we can start
digging the issue from here ? Perhaps it should be a separate bug as
well.
Tha
Public bug reported:
Hi,
In order to investigate bug LP#1531768, we upgraded some arm64 compute
nodes (swirlices) to a 4.4 kernel. I think it made the VMs work better,
but the hosts became extremely unstable.
After some time, getting a shell on them would be impossible. Connecting
on the VSP, yo
perf data is at : https://private-
fileshare.canonical.com/~axino/swirlix01.perf.data.LP1602577.xz
I'll run apport from this host, note that it's now running 4.2.
Version string of the unstable kernel was :
swirlix01 kernel: [0.00] Linux version 4.4.0-30-generic
(buildd@bos01-arm64-006)
apport information
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Filed LP#1602577 for the host instability issue on 4.4
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Title:
[arm64] lockups some time after booting
Status in Auto Package Testi
Hi !
kvm cmdline : https://paste.ubuntu.com/17430254/
cpuinfo : https://paste.ubuntu.com/17430265/
dmesg: https://paste.ubuntu.com/17430277/
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Yes we can do that. If you have documentation for this process, please
let us know.
Thanks
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Title:
[arm64] compute nodes unstable a
I can't find an arm64 build in http://kernel.ubuntu.com/~kernel-
ppa/mainline/v4.7-rc7/
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Title:
[arm64] compute nodes unstable after
Hi Joseph,
I tried the 4.7, but it made the compute node unbootable :
https://paste.ubuntu.com/21865889/
>From the initramfs shell, I had to manually load a few modules (ahci_xgene,
>sd_mod and ext4) so I could mount the root filesystem and get back to the
>previous working version (4.2).
Was
Public bug reported:
Hi,
It would appear that arm64 nova instances can't boot on 3.13.0-92.
The serial console displays :
error: plain Image kernel not supported - rebuild with CONFIG_(U)EFI_STUB
enabled.
unaligned pointer 0xb90002e058000c57
Aborted. Press any key to exit.
I suspect this is d
apport information
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** Tags added: apport-collected ec2-images trusty
** Description changed:
Hi,
It would appear that arm64 nova instances can't boot on 3.13.0-92.
The serial console displays :
error: plain Image kernel not supported - rebuild with CONFIG_(U)EFI_STUB
enabled.
apport information
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I think all the files are here ?
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[arm64] nova instance
OK. For now I'm using 3.13.0-91 or inferior, which works fine.
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Title:
[arm64] nova instances can't boot with 3.13.0-92
Status in d
Hi Tim,
I can't see any arm64 kernel in http://people.canonical.com/~rtg/arm64
-efi-lp1608854/, only amd64.
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Title:
[arm64] nova in
It boots fine !
$ cat /proc/version
Linux version 3.13.0-97-generic (rtg@gloin) (gcc version 4.8.2 20140110
(prerelease) [ibm/gcc-4_8-branch merged from gcc-4_8-branch, revision 205847]
(Ubuntu/Linaro 4.8.2-13ubuntu1) ) #144 SMP Mon Sep 12 16:38:12 UTC 2016
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It's booting \o/ We're trying to replicate the instability, we'll let
you know.
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Title:
[arm64] compute nodes unstable after upgradi
Yes, this is with the kernel from #26
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Title:
[arm64] compute nodes unstable after upgrading from 4.2 to 4.4 kernel
Status in linux
upstream 4.4.23 has been installed on a compute node, we'll let you know
how it goes
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Title:
[arm64] compute nodes unstable after up
FAOD
$ cat /proc/version
Linux version 4.4.23-040423-generic (kernel@tangerine) (gcc version 5.3.1
20160413 (Ubuntu/Linaro 5.3.1-14ubuntu2) ) #201609300709 SMP Fri Sep 30
11:52:40 UTC 2016
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Compute node is still up. I think we can consider upstream 4.4.23 to be
good.
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Title:
[arm64] compute nodes unstable after upgrading
OK cool. I think we can wait. Do you have an ETA for the fix to come
down ? And will trusty also get the fix ?
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Title:
[arm64] compu
4.8-rc1 had the same behaviour (landed into initramfs), so I figure I'd
dig a bit. Long story short, this was entirely due to the following
error :
/scripts/init-top/udev: line 14: can't create /sys/kernel/uevent_helper:
Permission denied
CONFIG_UEVENT_HELPER was y in 4.2, but got switched to "no
Well, this 4.8-rc1 doesn't have CONFIG_VIRTUALIZATION so it's not very
useful for a compute node kernel ...
I reverted to 4.2. Can you please build a kernel with
CONFIG_VIRTUALIZATION and CONFIG_KVM ?
Thanks
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So, just to be clear, you want us to test
http://people.canonical.com/~rtg/arm64-efi-lp1608854/ ? This is the
kernel built from git://kernel.ubuntu.com/rtg/ubuntu-trusty.git arm64
-efi-lp1608854 ?
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Looks good to me :
$ cat /proc/version
Linux version 3.13.0-94-generic (rtg@gloin) (gcc version 4.8.2 20140110
(prerelease) [ibm/gcc-4_8-branch merged from gcc-4_8-branch, revision 205847]
(Ubuntu/Linaro 4.8.2-13ubuntu1) ) #141 SMP Tue Aug 9 14:58:41 UTC 2016
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Public bug reported:
Hi,
Some of our nova compute hosts regularly freeze, sometimes for a few hours,
with kern.log getting spammed with :
block nbdX: Attempted send on closed socket
and a few "CPU soft lockup" messages (see attached log). This clears up when
the queue gets cleared, eg :
block
apport information
** Tags added: apport-collected trusty uec-images
** Description changed:
Hi,
Some of our nova compute hosts regularly freeze, sometimes for a few hours,
with kern.log getting spammed with :
block nbdX: Attempted send on closed socket
and a few "CPU soft lockup"
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1505564/+attachment/4493173/+files/CRDA.txt
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