On Wed, Jun 19, 2019 at 9:56 PM Valdis Klētnieks <valdis.kletnieks@xxxxxx> wrote: > > On Wed, 19 Jun 2019 20:47:34 +0530, Pintu Agarwal said: > > > No I mean to say, there are lots of features and customization already > > done on this version and stabilized. > > Upgrading again may require months of effort. > > This is what happens when you don't upstream your local changes. > > And no, saying "But we're a small company and nobody cares" isn't an > excuse - Linux carried the entire Voyager architecture around for several years > for 2 machines. Not two models, 2 physical machines, the last 2 operational > systems of the product line. > > (Not the Xubuntu-based Voyage distribution either - the Voyager was a mid-80s > SMP fault-tolerant system from NCR with up to 32 486/586 cores and 4G of > memory, which was a honking big system for the day...) > > https://kernel.googlesource.com/pub/scm/linux/kernel/git/rzhang/linux/+/v2.6.20-rc1/Documentation/voyager.txt > > The architecture was finally dropped in 2009 when enough hardware failures > had happened that James Bottomley was unable to create a bootable > system from the parts from both... > > So if your production run is several thousand systems, that's *plenty* big > enough for patches and drivers (especially since drivers for hardware you > included in your several-thousand system run are also likely applicable to > a half dozen other vendors who made several thousand systems using the > same chipset.... Yes, I agree, but unfortunately I don't have any control. I normally keep finding things, which seems interesting for me and propose for upstream (even if it is very small). And, I completely agree that system should be designed such a way that it can be easily up-gradable. But, as I said, its not fully in our hand :( Also, I think this case is slightly different. Here, even if I try with latest kernel, there is no use, since hibernation feature is not fully support for IMX. And I think that is already known. I came here looking for some pointers and help and get some clue to proceed further. If I succeed in making it I will definitely like to contribute upstream :) Thank You! Regards, Pintu _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies