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Message #03490
[Bug 1739591] Re: lttng-modules-dkms failed to build with 4.14 Azure edge kernel on Xenial
This bug was fixed in the package lttng-modules - 2.9.0-1ubuntu3.1
---------------
lttng-modules (2.9.0-1ubuntu3.1) artful; urgency=medium
* Fix builds for 4.14 kernel (LP: #1739591)
- [7ceeb15] Fix: update writeback instrumentation for kernel 4.14
- [1f1ec4e] Fix: update btrfs instrumentation for kernel 4.14
- [da3122a] Fix: version check error in btrfs instrumentation
- [7feabe5] Fix: update block instrumentation for 4.14 kernel
- [467f3a4] Fix: lttng-logger get_user_pages_fast error handling
- [1d822c6] Update: kvm instrumentation for 4.14.14+, 4.9.77+, 4.4.112+
- [bda29b7] Update kvm instrumentation for debian kernel 4.9.65-3
- [5ccd696] Update: kvm instrumentation for 3.16.52 and 3.2.97
- [d9f561b] Fix: kvm instrumentation for 4.15
- [3363052] Update kvm instrumentation for 4.15
-- Colin Ian King <colin.king@xxxxxxxxxxxxx> Tue, 6 Feb 2018 16:02:03
+0000
** Changed in: lttng-modules (Ubuntu Artful)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1739591
Title:
lttng-modules-dkms failed to build with 4.14 Azure edge kernel on
Xenial
Status in lttng-modules:
New
Status in lttng-modules package in Ubuntu:
Fix Committed
Status in lttng-modules source package in Xenial:
Fix Committed
Status in lttng-modules source package in Artful:
Fix Released
Bug description:
SRU request, Xenial, Artful
[Impact]
lttng dkms modules fail to build against newer HWE kernels because of
missing 4.14 compat fixes that allow it to build against newer 4.14
kernels.
[Fix]
Upstream lttng 4.14 compat fixes.
[Testcase]
Without the fix, running the kernel team autotest lttng regression test suite fails because the module does not build and install. With the fix the lttng smoke tests pass.
To run the test:
sudo autotest/client/autotest-local autotest/client/tests/ubuntu_lttng_smoke_test/control
using git://kernel.ubuntu.com/ubuntu/autotest and
git://kernel.ubuntu.com/ubuntu/autotest-client-tests
[Regression Potential]
lttng fails to build and work against older kernels. As the new code is #if'def'd compat code the 4.14 specific changes are not built into the older kernels, so this risk is small.
--------------------------------------------------------------------------
[stdout] Setting up lttng-modules-dkms (2.8.0-1ubuntu1~16.04.3) ...
[stdout] Loading new lttng-modules-2.8.0 DKMS files...
[stdout] First Installation: checking all kernels...
[stdout] Building only for 4.14.0-1002-azure-edge
[stdout] Building initial module for 4.14.0-1002-azure-edge
[stdout] Error! Bad return status for module build on kernel: 4.14.0-1002-azure-edge (x86_64)
[stdout] Consult /var/lib/dkms/lttng-modules/2.8.0/build/make.log for more information.
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References