This bug was fixed in the package linux - 5.4.0-73.82
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linux (5.4.0-73.82) focal; urgency=medium
* focal/linux: 5.4.0-73.82 -proposed tracker (LP: #1923781)
* Packaging resync (LP: #1786013)
- update dkms package versions
* CIFS DFS entries not accessible with
VERIFICATION
Installed kernel from -proposed, enabled iommu rebooted and triggered a crash.
Crashdump generated successfully.
** Tags removed: verification-needed-focal
** Tags added: verification-done-focal
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Hi Ioanna, may you please verify the focal kernel in -proposed resolves
this bug? thank you!
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https://bugs.launchpad.net/bugs/1922738
Title:
5.4 kernel: when iommu is on crashdump
This bug is awaiting verification that the 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
the tag
** Changed in: linux (Ubuntu Focal)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
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Patch submitted: https://lists.ubuntu.com/archives/kernel-
team/2021-April/118846.html
** Tags added: bot-stop-nagging
** Changed in: linux (Ubuntu Focal)
Status: Confirmed => In Progress
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** Description changed:
[IMPACT]
When iommu is enabled crashdump fails to be collected because crash-kernel
crashes
with following trace [1].
Commits that address it :
1ddb32da4a62 iommu/vt-d: Simplify check in identity_mapping()
96d170f3b1a6 iommu/vt-d: Remove
