Test from 5.4.0-26.30 and looks like this issue starts from 5.4.0-31.35.
I will do more test to make sure this
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https://bugs.launchpad.net/bugs/1953058
Title:
Kernel "BUG:
Same test in #7 for bionic and so far all 13 deploy looks good, no soft
lockup. Looks this is a focal kernel issue and I will try to reboot into
different focal kernel.
** Changed in: linux (Ubuntu Focal)
Status: Confirmed => In Progress
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Tried to deploy and wait for 100min to see if soft lockup shows.
Deploy focal and I can reproduce 5 times in 8 deploy test. Deploy jammy
and it passes 20 deploy and everything looks good. It looks more and
more like a focal kernel issue to me.
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For next steps,
1) Find out why I can not use maas-cli to deploy bionic-hwe on d05-3
2) Collect failure logs on appleton
3) Find out the hardware difference
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MAAS deploy/release loop with focal[1] on d05-3 and has deployed for 82 times
without failure.
MAAS deploy/release loop with bionic-hwe on appleton run 100 times and 10 of
them are failed.
Look like this issue is only happened on appleton.
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[1] For some reason I can not deploy bionic-hwe
Check log again and it looks like failure happens when reboot from
deploying. I will try deploy/release cycle again and see how it goes.
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appleton with 5.4.0-135.152~18.04.2-generic passes 1000 reboot without
any soft lockup. I will try 5.4.0-92.103~18.04.2.
d05-3 with 5.4.0-135.152~18.04.2-generic passes 669 reboot without any
error.
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => Ike Panhc (ikepanhc)
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I find 2 systems with same Mellanox NIC card and put both systems in
reboot test overnight.
0005:01:00.0 Ethernet controller [0200]: Mellanox Technologies MT27710 Family
[ConnectX-4 Lx] [15b3:1015]
0005:01:00.1 Ethernet controller [0200]: Mellanox Technologies MT27710 Family
[ConnectX-4 Lx]
@cypressyew,
I use another machine with mlx5 NIC but can not reproduce. I might need
to borrow appleton for testing.
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https://bugs.launchpad.net/bugs/1953058
Title:
** Summary changed:
- Kernel "BUG: soft lockup" with 5.4 kernels on appleton node (arm64)
+ Kernel "BUG: soft lockup" with 5.4 kernels on arm64 node appleton node (dmesg
spammed with "mlx5_core 0005:01:00.0: mlx5_eq_comp_int:159:(pid 1180):
Completion event for bogus CQ 0x5a5aa9")
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