[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
[Expired for linux (Ubuntu Bionic) because there has been no activity
for 60 days.]
** Changed in: linux (Ubuntu Bionic)
Status: Incomplete => Expired
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
** Changed in: linux (Ubuntu Bionic)
Status: Triaged => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
processor : 0
BogoMIPS: 200.00
Features: fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x43
CPU architecture: 8
CPU variant : 0x1
CPU part: 0x0a1
CPU revision: 1
--
You received this bug notification because you are a member of Kernel
** Attachment added: "stress-ng disk test on CRB with
CONFIG_ARM64_SW_TTBR0_PAN disabled."
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1754053/+attachment/5162584/+files/seuss-disk.test
--
You received this bug notification because you are a member of Kernel
Packages, which is
If CONFIG_ARM64_SW_TTBR0_PAN is disabled in the kernel we dont see these
random crashes anymore. I ran /usr/lib/plainbox-provider-
checkbox/bin/disk_stress_ng and /usr/lib/plainbox-provider-
checkbox/bin/memory_stress_ng tests on CRB (seuss) the last couple of
days and did not see any crash.
** Changed in: linux (Ubuntu)
Status: Won't Fix => Triaged
** Changed in: linux (Ubuntu Bionic)
Status: Won't Fix => Triaged
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
Collected more data points on this issue.
1. Tried offline CPUs. We found that the crash typically was on CPU:40,
so offlined CPU40 and repeated the test. The test seemed to make
progress but panicked on a different CPU. I tried to offline several
more CPU, but the crash seems to move on to other
-- pre-req for apt-add-repository --
$ sudo apt-get install -y python-software-properties
-- Install cert --
$ sudo apt-add-repository -y ppa:hardware-certification/public
$ sudo apt-get update
$ sudo apt-get install -y canonical-certification-server
Edit this file for iperf3:
-- linux mainline --
The current mainline kernel (4.16 04-01-2018) from
http://kernel.ubuntu.com/~kernel-ppa/mainline/ was installed and tested using
stress-ng sda. Again softlockups causing system to be unstable.
** Attachment added: "trace from 4.16 kernel."
Based on all the testing with different kernels I suspect this might be
a HW/FW issue, and we might want to seek guidance from Cavium on how to
effectively address this issue on Seuss. Please note that the issue is
not reproduced on a similar CRB system, and occurs *only on* Seuss.
Where there any
-- linux-hwe --
Reproduced with linux-hwe on xenial running stress-ng sda. We either see soft
lockups or we see the kernel oopsing on random fs/jbd2/ code, which I believe
is a side effect of lockups.
** Attachment added: "trace from 4.13 kernel."
These observations were on a system in our lab called "seuss". My
suggestions for next steps would be:
1) Determine how reliable this failure is.
a) Deploy xenial/hwe on seuss, and downgrade the kernel to the version in the
crash log (4.13.0-36-generic #40~16.04.1-Ubuntu).
b) Run the
** Description changed:
Seen on a Cavium CRB1S a couple of times while running the
- com.canonical.certification::disk/disk_stress_ng_sda kernel from the
+ com.canonical.certification::disk/disk_stress_ng_sda testcase from the
canonical-certification-server test suite:
[ 1823.116031]
** Changed in: linux (Ubuntu Artful)
Importance: Undecided => High
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => High
** Tags added: kernel-da-key
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
15 matches
Mail list logo
