On Thu, Feb 21, 2013 at 06:03:17PM +0100, Swâmi Petaramesh wrote: > Le 21/02/2013 17:38, Hugo Mills a écrit : > > Plus, if something does go wrong with your FS, and you're running an > > older kernel, you'll get limited amounts of sympathy, because quite a > > lot of the problems people encounter with older kernels have already > > been fixed in newer ones. > > The matter, as usual, is that what may be a "new" kernel from a user's > standpoint, may be an "old" kernel from a developer's standpoint. > > Should this exclude all standard users from developer's "sympathy", or > reduce it to very limited amounts ? For an filesystem still under heavy development, and still marked "experimental", yes, it should. In fact, *particularly* for a filesystem, where a bug can cause persistent damage which isn't easily fixable by upgrading to a later kernel (which is the case with most kernel bugs). > Users are supposed to use released material, not bleeding-edge > compile-it-yourself devs toys... Correct. But btrfs isn't at that stage yet. It's getting visibly closer, but it's not quite there. Hence the very strong recommendation to keep up with the latest code. Hugo. > > Finally, Ubuntu publish the latest kernels in a PPA[1], so there's not > > really much excuse for not keeping up with them. > > Yep. AFAIK the MAINLINE PPA is a Ubuntu-packaged STANDARD kernel without > any of the specific Ubuntu kernel patches. > > That makes it very inappropriate for daily use, and the Ubuntu devs ask > for trying it ONLY when reporting kernel bugs, to check if said bug may > have been fixed upstream in latest kernel, or not. > > Last time I tried this standard kernel, on one of my machines, it just > wouldn't boot ; on another one, it couldn't manage power (battery etc) > correctly, and on the machine on which I write this email, it couldn't > see my SD card reader anymore - for this one is managed by a driver > which still didn't make it into the standard kernel. > > I use Ubuntu on several -dekstop- machines that benefit and need the > Ubuntu patches on their Ubuntus. I'm not (currently) running a headless > generic server for which my main and only concern would be BTRFS... > > So I try to stick to the very old - albeit maximum 6 months old ! - > stock Ubuntu kernel... -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- I get nervous when I see words like 'mayhaps' in a novel, --- because I fear that just round the corner is lurking 'forsooth'
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