** Tags added: verification-needed-focal-linux-bluefield
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https://bugs.launchpad.net/bugs/2019011
Title:
[UBUNTU 20.04] [HPS] Kernel panic with "refcount_t: underflow" in m
** Tags removed: verification-needed-focal-linux-bluefield
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Title:
[UBUNTU 20.04] [HPS] Kernel panic with "refcount_t: underflow" in
This bug is awaiting verification that the linux/5.4.0-155.172 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-focal' to 'verification-done-focal'. If the problem
still exists, change
** Changed in: ubuntu-z-systems
Status: In Progress => Fix Committed
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Title:
[UBUNTU 20.04] [HPS] Kernel panic with "refcount
** Changed in: linux (Ubuntu Focal)
Status: In Progress => Fix Committed
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Title:
[UBUNTU 20.04] [HPS] Kernel panic with "refc
Test build (on slightly newer focal kernel):
https://launchpad.net/~fheimes/+archive/ubuntu/lp2019011
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Title:
[UBUNTU 20.04] [HPS] K
Hi, Boris.
Just to confirm did you manage to validate the 5.4 generic test kernel?
This fix is intended to the 5.4 generic kernel in bionic and in focal
(via the generic HWE kernel).
Thank you!
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** Description changed:
SRU Justification:
==
[ Impact ]
- * The mlx5 driver is causing a Kernel panic with
-"refcount_t: underflow".
-
- * This issue occurs during a recovery when the PCI device
-is isolated and thus doesn't respond.
+ * The mlx5 driver is
Submission to the kernel team mailing list was done:
https://lists.ubuntu.com/archives/kernel-team/2023-June/thread.html#140723
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Changed in: linux (Ubuntu Focal)
Importance: Undec
** Description changed:
+ SRU Justification:
+ ==
+
+ [ Impact ]
+
+ * The mlx5 driver is causing a Kernel panic with
+"refcount_t: underflow".
+
+ * This issue occurs during a recovery when the PCI device
+is isolated and thus doesn't respond.
+
+ [ Fix ]
+
+ * Thi
Just double checked the potential affected releases.
The fix(es) is(are) incl. in lunar, kinetic and jammy - so the only affected
release is indeed focal.
** Changed in: linux (Ubuntu)
Status: New => Fix Released
** Changed in: ubuntu-z-systems
Status: New => In Progress
** Change
** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin2004
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Title:
[UBUNTU 20.04] [HPS] Kernel panic with "ref
** Also affects: ubuntu-z-systems
Importance: Undecided
Status: New
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Title:
[UBUNTU 20.04] [HPS] Kernel panic with "refcou
Hi, Vineeth.
The patch in hand is included in the HWE version of the Focal Kernel and
in the LTS version of the Jammy Kernel. Both are 5.15, FWIW, and the
fix has a different id there:
f0f894f0f636 net/mlx5: Fix handling of entry refcount when command is
not issued to FW
The Focal LTS Kernel is
** Tags added: patch
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Title:
[UBUNTU 20.04] [HPS] Kernel panic with "refcount_t: underflow" in mlx5
driver
Status in linux packag
Hi, Vineeth.
These packages are for the 20.04 LTS Kernel.
BR,
pprincipeza
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Title:
[UBUNTU 20.04] [HPS] Kernel panic with "refcount
The change requires the backport of one additional patch (both are
provided above).
We created a test kernel with those changes for validation and you can
find the debian packages at
https://people.canonical.com/~mhcerri/lp2019011/s390x_debs.tgz
Please let us know if the test kernel works as expe
** Patch added:
"0002-net-mlx5-Fix-handling-of-entry-refcount-when-command.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2019011/+attachment/5672246/+files/0002-net-mlx5-Fix-handling-of-entry-refcount-when-command.patch
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** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Focal)
Status: New => In Progress
** Patch added:
"0001-net-mlx5-cmdif-Avoid-skipping-reclaim-pages-if-FW-is.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/20190
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