Comment 2 for bug 1853981

Current bisect result (not finished yet):
git bisect start
# bad: [e903d6a85368180af5f09bf5d0be0308b757694d] UBUNTU: upstream stable to v4.19.83, v5.3.10
git bisect bad e903d6a85368180af5f09bf5d0be0308b757694d
# good: [e421062fe0c6fba6d639c9ca57e3587171e7664f] UBUNTU: Ubuntu-5.0.0-37.40
git bisect good e421062fe0c6fba6d639c9ca57e3587171e7664f
# bad: [120233013313edb21f4003433af1661e8961739d] tty: serial: owl: Fix the link time qualifier of 'owl_uart_exit()'
git bisect bad 120233013313edb21f4003433af1661e8961739d
# good: [482f7e77e9d7193bc165fab34bb54f142157d270] ARM: dts: Fix wrong clocks for dra7 mcasp
git bisect good 482f7e77e9d7193bc165fab34bb54f142157d270
# bad: [cc337c66ceb8c0bd641a821889fd06016106422f] dm snapshot: rework COW throttling to fix deadlock
git bisect bad cc337c66ceb8c0bd641a821889fd06016106422f