Good day Mr. Kroah-Hartman, I've found the culprit commit. It took a while though but now I'm sure: commit - brief decription - time - works (y) or not (n) 670784fb4ebe54434e263837390e358405031d9e - rc1 2019-05-20 e260ad01f0aa9e96b5386d5cd7184afd949dc457 - rc0 2019-05-14 19:52:51 -0700 n 8ea5b2abd07e2280a332bd9c1a7f4dd15b9b6c13 - rc0 2019-05-09 19:35:41 -0700 n 54516da1ea859dd4f56ebba2e483d2df9d7c8a32 - rc0 2019-05-05 21:58:36 -0700 y 71ae5fc87c34ecbdca293c2a5c563d6be2576558 - rc0 2019-05-06 20:29:45 -0700 y 80f232121b69cc69a31ccb2b38c1665d770b0710 - rc0 2019-05-07 22:03:58 -0700 y a2d635decbfa9c1e4ae15cb05b68b2559f7f827c - rc0 2019-05-08 21:35:19 -0700 n 132d68d37d33f1d0b9c1f507c8b4d64c27ecec8a - rc0 2019-05-08 10:03:52 -0700 n 86dc59e39031fb0d366d5b1f92db015b24bef70b - rc0 2019-05-08 09:46:44 -0700 y So 86dc59e39031fb0d366d5b1f92db015b24bef70b is the last working for me, and 132d68d37d33f1d0b9c1f507c8b4d64c27ecec8a is the breaking one: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.2-rc3&id=132d68d37d33f1d0b9c1f507c8b4d64c27ecec8a вт, 4 июн. 2019 г. в 15:40, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: > > On Tue, Jun 04, 2019 at 12:58:38AM +1000, Vladimir Yerilov wrote: > > No, I can't. > > > > Unfortunately, this exceeds the scope of my knowledge. I simply don't > > know enough to understand your request correctly. What I can is to > > compile and try some pre-rc1 5.2 kernel and see how it goes. Also I > > managed to trace the source of this problem more precisely. > > If you can use a pre-rc1 5.2 kernel, that means you are using git, so > just look at 'git bisect --help' for how that command works and how you > can use it to find the exact problem commit. > > thanks, > > greg k-h -- ---- Best regards, Vladimir Yerilov