This bug was fixed in the package linux - 4.15.0-50.54
---
linux (4.15.0-50.54) bionic; urgency=medium
* CVE-2018-12126 // CVE-2018-12127 // CVE-2018-12130
- Documentation/l1tf: Fix small spelling typo
- x86/cpu: Sanitize FAM6_ATOM naming
- kvm: x86: Report STIBP on
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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https://bugs.launchpad.net/bugs/1825074
Title:
amdgpu resume failure: failed to allocate wb slot
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-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1825074
Title:
amdgpu resume failure: failed to allocate wb slot
To
** Tags added: patch
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https://bugs.launchpad.net/bugs/1825074
Title:
amdgpu resume failure: failed to allocate wb slot
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** Description changed:
+ [Impact]
+ Systems with video cards using amdgpu driver may fail to resume due to
resource leakage.
+
+ [Fix]
+ 73469585510d drm/amdgpu: fix for wb_clear
+
+ [Test Case]
+ Verified with fwts for a thounsand runs.
+
+ [Regression Risk]
+ Low. This patch has been
Patch to dump amdgpu_wb usage. Confirmed amdgpu_wb_free() is called with
an offset returned from amdgpu_wb_get(), and yet it skips actual release
call because offset is larger than AMDGPU_MAX_WB.
** Patch added: "0001-drm-amdgpu-dump-amdgpu_wb-usage.patch"
** Tags added: originate-from-1824453 somerville
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
** Changed in: linux (Ubuntu)
Status: Incomplete => In Progress
** Changed in: linux (Ubuntu Bionic)
Status: Incomplete => In Progress
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commit 97407b63ea60 drm/amdgpu: use 256 bit buffers for all wb allocations (v2)
commit 63ae07ca4fb4 drm/amdgpu:fix wb_clear
These two commits introduced buggy resource management and are latter
fixed in commit 73469585510d "drm/amdgpu: fix for wb_clear".
[1]:
This only affects Bionic as Xenial doesn't come with the two commits and
Cosmic/Disco have already included the fix.
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https://bugs.launchpad.net/bugs/1825074
Title:
amdgpu resume
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