| 2023-10-12 16:47:40 |
Tim Gardner |
bug |
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added bug |
| 2023-10-12 16:47:49 |
Tim Gardner |
affects |
linux (Ubuntu) |
linux-azure (Ubuntu) |
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| 2023-10-12 16:48:00 |
Tim Gardner |
nominated for series |
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Ubuntu Lunar |
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| 2023-10-12 16:48:00 |
Tim Gardner |
bug task added |
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linux-azure (Ubuntu Lunar) |
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| 2023-10-12 16:48:09 |
Tim Gardner |
linux-azure (Ubuntu): status |
New |
Fix Released |
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| 2023-10-12 16:48:50 |
Tim Gardner |
description |
SRU Justification
[Impact]
On Azure, the VM SKU Standard_NC64as_T4_v3's bandwidth is 30 Gbps, but we can only reach 15~20 Gbps with the 5.15.0-1049-azure kernel in Ubuntu 20.04 or the 6.2.0-1014-azure kernel in Ubuntu 22.04.
After I pick up the upstream patch(es) to enable PCI relaxed ordering (RO) for the Mellanox VF NIC, the throughput goes up to 30.4 Gbps.
[Test Plan]
Microsoft tested
[Regression Potential]
Mellanox connections could be corrupted or run slower.
[Other Info]
SF: #00370735 |
SRU Justification
[Impact]
On Azure, the VM SKU Standard_NC64as_T4_v3's bandwidth is 30 Gbps, but we can only reach 15~20 Gbps with the 5.15.0-1049-azure kernel in Ubuntu 20.04 or the 6.2.0-1014-azure kernel in Ubuntu 22.04.
After I pick up the upstream patch(es) to enable PCI relaxed ordering (RO) for the Mellanox VF NIC, the throughput goes up to 30.4 Gbps.
[Fix]
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17347d5430c4e4e1a3c58ffa2732746bd26a9c02
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e2351e517068718724f1d3b4010e2a41ec91fa76
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77528e2aed9246cf8017b8a6f1b658a264d6f2b2
[4] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ed4b0661cce119870edb1994fd06c9cbc1dc05c3
[Test Plan]
Microsoft tested
[Regression Potential]
Mellanox connections could be corrupted or run slower.
[Other Info]
SF: #00370735 |
|
| 2023-10-12 17:10:46 |
Tim Gardner |
nominated for series |
|
Ubuntu Jammy |
|
| 2023-10-12 17:10:46 |
Tim Gardner |
bug task added |
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linux-azure (Ubuntu Jammy) |
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| 2023-10-12 17:11:07 |
Tim Gardner |
linux-azure (Ubuntu Jammy): importance |
Undecided |
Medium |
|
| 2023-10-12 17:11:07 |
Tim Gardner |
linux-azure (Ubuntu Jammy): status |
New |
In Progress |
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| 2023-10-12 17:11:07 |
Tim Gardner |
linux-azure (Ubuntu Jammy): assignee |
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Tim Gardner (timg-tpi) |
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| 2023-10-12 17:11:23 |
Tim Gardner |
linux-azure (Ubuntu Lunar): importance |
Undecided |
Medium |
|
| 2023-10-12 17:11:23 |
Tim Gardner |
linux-azure (Ubuntu Lunar): status |
New |
In Progress |
|
| 2023-10-12 17:11:23 |
Tim Gardner |
linux-azure (Ubuntu Lunar): assignee |
|
Tim Gardner (timg-tpi) |
|
| 2023-12-01 16:54:19 |
Tim Gardner |
linux-azure (Ubuntu Jammy): status |
In Progress |
Fix Committed |
|
| 2023-12-01 16:54:23 |
Tim Gardner |
linux-azure (Ubuntu Lunar): status |
In Progress |
Fix Committed |
|
| 2024-01-18 02:39:13 |
Ubuntu Kernel Bot |
tags |
|
kernel-spammed-jammy-linux-azure-v2 verification-needed-jammy-linux-azure |
|
| 2024-02-05 16:35:19 |
Tim Gardner |
tags |
kernel-spammed-jammy-linux-azure-v2 verification-needed-jammy-linux-azure |
kernel-spammed-jammy-linux-azure-v2 verification-done-jammy-linux-azure |
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| 2024-02-15 18:01:26 |
Launchpad Janitor |
linux-azure (Ubuntu Jammy): status |
Fix Committed |
Fix Released |
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| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
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2023-32252 |
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| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-46813 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6039 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6040 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6111 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6176 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6606 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6622 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6817 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6931 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2023-6932 |
|
| 2024-02-15 18:01:26 |
Launchpad Janitor |
cve linked |
|
2024-0193 |
|
| 2024-02-29 00:42:04 |
Ubuntu Kernel Bot |
tags |
kernel-spammed-jammy-linux-azure-v2 verification-done-jammy-linux-azure |
kernel-spammed-jammy-linux-azure-fips-v2 kernel-spammed-jammy-linux-azure-v2 verification-done-jammy-linux-azure verification-needed-jammy-linux-azure-fips |
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