On 11.11.19 09:36, Christian Ehrhardt wrote: > On Fri, Nov 8, 2019 at 5:18 PM van Sleeuwen, Berry > <berry.vansleeu...@atos.net> wrote: >> Hi Stefan, >> >> Thanks for this information. So an update looks like the first step. >> >> After initial installation I updated with the most current ports-mirror. The >> current version is VERSION="18.04.3 LTS (Bionic Beaver)". Looking at it, >> indeed the kernel was updated to 4.15.0-66 after I got the repo available >> but there is also an 4.18.0-25 available in there. However this 4.18 version >> was not installed. > Thanks Stefan, > yeah [1] really looks good in regard to the issue described here. > This fix is indeed in newer kernels like the 4.18 HWE kernel, but btw > the most recent HWE kernel for 18.04 is even already at 5.0.0.34.91. > Anyway, this won't help the defaults, as you can see on [2] that for > compatibility reasons "Server installations will default to the GA > kernel and provide the enablement kernel as optional." > So without users like Berry explicitly opting into the new kernel they > won't get the fix. > > Given that this issue potentially affects the install when enabling > plenty of disks I wonder if the change should be backported to an > update of the GA kernel into a 4.15-0-xx release. > > @Stefan you are the Author and the patch looks rather small and > backportable. Also for potential regressions of that default change > [1] states that there were none of the expected performance > regressions happening. > What would be your opinion, should we open a bug and ask the Kernel > team to consider backporting this into Ubuntu's 4.15 kernel as well?
Hi Christian, from my point of view it should be no problem to port this patch to 4.15. But I can run some additional tests on it if you like. Regards, Stefan ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390
