Hi,
Not sure this is useful (since it might be obvious), but adding `nopti` to
kernel parameters works around the issue, indicating this is indeed related to
kpti.
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FWIW, bumping the kernel on the host (and most likely on the L1 VMs too) should
work.
The HWE kernel in Xenial is the same version (4.15) with the kernel used by
Bionic (18.04), so this should fix the problem:
$ apt install linux-generic-hwe-16.04
$ reboot
BR,
Alex
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Public bug reported:
For a few months now, we have been using OVS 2.9 (or newer) on Ubuntu Xenial in
OPNFV, both with and without DPDK.
A while ago, we observed a couple of rare race conditions when multiple Linux
interfaces/bridges are mixed with OVS ports/bridges. We also observed races
betwe
Upstream PR merged.
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https://bugs.launchpad.net/bugs/1582181
Title:
AArch64: slow cpuinfo due to redundant loop
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I see nobody acted on this, so I sent a PR [1] upstream.
Will update this ticket if it gets pulled.
[1] https://github.com/lyonel/lshw/pull/36
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Ti
Hi,
If it helps, we have an old DEB package at [1].
I think it's based on the lshw version that was used by Trusty or Xenial at
that time.
[1] http://linux.enea.com/mos-repos/ubuntu/10.0/pool/main/l/lshw/
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Hi, Dann,
Thanks for looking into this!
One more thing: we blacklisted the module "vhost_net", and that bypasses the
issue.
I know it's not the right direction for finding a fix, but maybe it helps with
the debug.
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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1674837
Title:
thunder nic: RX_PACKET_DIS fix regression with Extreme Networks swit
Hi, Dann,
I created a new bug and pasted the same info as above at [1].
Afaict, there is no useful information in the logs when link training fails.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674837
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Public bug reported:
Upstream backport [3] introduced a regression with ThunderX nodes (CRB-1S,
CRB-2S) and our 10G switch (Extreme Networks x670 10GE L3).
We have opened a downstream bug report [1], where we temporarily bypassed this
by pinning the kernel to 4.4.0-45.
I also tested 4.8 (multipl
Let me know if I should attach any logs, although there are *no* traces
anywhere, at least with default log levels (without recompiling).
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Title:
Hi, Dann,
First of all, I think the bug title is misleading, as this issue happens on all
kernels we tested (4.4.0-45..66, 4.8.0-x, 4.10.0-x etc).
To be fair, we haven't this exact bug (or at least I don't think we did)
in practice, i.e. without running stress-ng, 4.4.0-x never ever crashed.
The
Hi,
1) We tested different models (CRB-1S, CRB-2S) - all behave the same.
2) Please check the logs "ThunderX 4.11-rc1 console log" in [2] linked above. I
don't think firmware version makes a difference for this issue (we saw the same
bug with firmwares: T22, T27, T31).
All in all, this issue se
Hi,
This fix introduced a regression with ThunderX nodes (CRB-1S, CRB-2S) and our
10G switch (Extreme Networks x670 10GE L3).
We have opened a downstream bug report [1], where we temporarily bypassed this
by pinning the kernel to 4.4.0-45.
I also tested 4.8 (multiple builds), 4.10 and 4.11-rc1 (v
4.11-rc1 console log attached.
Board firmware is latest available on Gigabyte's site (T31).
1. Install 4.11-rc1 (`make modules_install install`) and reboot
2. Observe networking driver issues in boot log
Dmesg: 4.11-rc1_dmesg_on_clean_boot.log [3]
3. Try `ping google.com`, obviously not working
Hi,
I tried out 4.11-rc1 a few days ago. Unfortunately, I did not get the board to
boot properly from the start, since ThunderX networking drivers failed to
allocate MSI-X/MSI interrupts, and polling on some registers also failed ...
So, with 4.11-rc1, at least one networking interfaces was neve
apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837219/+files/ProcModules.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837218/+files/ProcInterrupts.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837220/+files/UdevDb.txt
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Title:
Th
apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837216/+files/Lsusb.txt
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Title:
Thun
apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837215/+files/Lspci.txt
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Title:
Thun
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837217/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837221/+files/WifiSyslog.txt
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apport information
** Tags added: apport-collected xenial
** Description changed:
I have been trying to easily reproduce this for days.
We initially observed it in OPNFV Armband, when we tried to upgrade our
Ubuntu Xenial installation kernel to linux-image-generic-hwe-16.04 (4.8).
In o
apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837213/+files/CurrentDmesg.txt
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apport information
** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1672521/+attachment/4837214/+files/JournalErrors.txt
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Public bug reported:
I have been trying to easily reproduce this for days.
We initially observed it in OPNFV Armband, when we tried to upgrade our Ubuntu
Xenial installation kernel to linux-image-generic-hwe-16.04 (4.8).
In our environment, this was easily triggered on compute nodes, when launch
Public bug reported:
lshw on AArch64 hardware is painfully slow.
This affects both lshw in current Ubuntu releases and vanilla upstream.
For a 48 core node, cpuinfo parsing added up to 30 seconds (8 lines
per core in /proc/cpuinfo add up to 384 lines to parse).
For a 96 core node, parsing took u
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