** Description changed:

  Testing failed on:
-     amd64: 
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/l/lttng-modules/20201127_124844_8cd8d@/log.gz
+     amd64: 
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/l/lttng-modules/20201127_124844_8cd8d@/log.gz
+ 
+ Build error:
+   CC [M]  /var/lib/dkms/lttng-modules/2.10.8/build/lttng-abi.o
+ In file included from 
/var/lib/dkms/lttng-modules/2.10.8/build/lttng-abi.c:47:0:
+ /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/vmalloc.h:99:6: warning: 
"LTTNG_KERNEL_RANGE" is not defined, evaluates to 0 [-Wundef]
+    || LTTNG_KERNEL_RANGE(5,4,28, 5,5,0)            \
+       ^~~~~~~~~~~~~~~~~~
+ /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/vmalloc.h:99:24: error: 
missing binary operator before token "("
+    || LTTNG_KERNEL_RANGE(5,4,28, 5,5,0)            \
+                         ^
+ /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/vmalloc.h: In function 
‘wrapper_vmalloc_sync_mappings’:
+ /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/vmalloc.h:120:9: error: 
implicit declaration of function ‘vmalloc_sync_all’; did you mean 
‘vmalloc_to_pfn’? [-Werror=implicit-function-declaration]
+   return vmalloc_sync_all();
+          ^~~~~~~~~~~~~~~~
+          vmalloc_to_pfn
+ /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/vmalloc.h:120:9: warning: 
‘return’ with a value, in function returning void
+   return vmalloc_sync_all();
+          ^~~~~~~~~~~~~~~~~~
+ /var/lib/dkms/lttng-modules/2.10.8/build/wrapper/vmalloc.h:118:6: note: 
declared here
+  void wrapper_vmalloc_sync_mappings(void)
+       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ cc1: some warnings being treated as errors
+ scripts/Makefile.build:330: recipe for target 
'/var/lib/dkms/lttng-modules/2.10.8/build/lttng-abi.o' failed
+ 
+ 
+ For some reason this dkms module is failing to build only with linux-kvm on 
Bionic, it builds successfully with all the other flavors/derivatives.

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https://bugs.launchpad.net/bugs/1905989

Title:
  lttng-modules 2.10.8-1ubuntu2~18.04.3 fail to build with linux-kvm in
  Bionic

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