+To: Ubuntu kernel folks from canonical git Please, make sure you have fix for the user-visible regression: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d3736d82e816 I've glanced your backports and do not see it there: https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/ On 1/30/19 6:45 AM, md_5 wrote: > Hi Jiri, > > Thanks for the super quick reply! > It looks like Ubuntu is indeed missing this commit. > > It contains the earlier 83d817f41070c48bc3eb7ec18e43000a548fca5c and > cf62a1a13749db0d32b5cdd800ea91a4087319de commits, but not the commit > you mention (from early this month). > > I guess I will try and pull this commit into Ubuntu and work with them > to get it out, assuming it all works. > > Thanks again for the response. > > Michael > > On Wed, 30 Jan 2019 at 17:36, Jiri Slaby <jslaby@xxxxxxx> wrote: >> >> On 30. 01. 19, 7:28, md_5 wrote: >>> All, >>> >>> I have spent the afternoon trying to track down a regression in a >>> userspace application between: >>> 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 >>> and >>> 4.15.0-44-generic #47-Ubuntu SMP Mon Jan 14 11:26:59 UTC 2019 >>> >>> After some investigation, I believe >>> https://github.com/torvalds/linux/commit/c96cf923a98d1b094df9f0cf97a83e118817e31b >>> "tty: Don't block on IO when ldisc change is pending" is the cause of >>> this regression. >> >> Please make sure you have also d3736d82e8169768218ee0ef68718875918091a0 >> applied. It fixes exactly this kind of problems. Do you have the commit? >> >> thanks, >> -- >> js >> suse labs > > Thanks for the report, Dmitry
