I have now tested the updated Linux kernel from bionic proposed. The new kernel seems to solve the problem and the fix appears OK for :
linux-image-generic 4.15.0.55.57 amd64 Generic Linux kernel image Linux 4.15.0-55-generic #60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Hence, I change the tag to verification-done-bionic
I have now tested the updated Linux kernel from bionic proposed. The
new kernel seems to solve the problem and the fix appears OK for :
linux-image-generic 4.15.0.55.57 amd64 Generic Linux kernel image
Linux 4.15.0-55-generic #60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Hence, I change the tag to verification- done-bionic