On Sun, 2021-08-22 at 12:42 +0200, Steve Cotton wrote: > Am Sun, Aug 22, 2021 at 11:21:38AM +0100 schrieb Luca Boccassi: > > On Sat, 2021-08-21 at 22:57 +0200, Guillem Jover wrote: > > > Just like no one had detected the database corruption in Ubuntu > > > before > > > I spotted the problem via code review and analysis (which I guess > > > in > > > your world translates to "opinion"). I'd expect the problems with > > > aliased directories to be that kind of insidious issue that > > > people > > > have a very hard time trying to pin point, and which will be > > > getting > > > worse as time passes. > > > > If I understand correctly, what has been stated as a potential > > theoretical consequence is files disappearing and upgrades failing. > > Why > > would these be hard to detect? It would seem to be a pretty visible > > consequence, no? > > How would you know which package to log a bug on? Would you feel able > to log a > useful bug report at all, given that all you've detected is that > something is > losing data from the filesystem? > > * How do you know it's not a kernel filesystem bug? > * How do you know it's not a kernel caching bug? > * How do you know it wasn't just a typo by the administrator? > * How long ago did it happen anyway, when did you last use this > utility? > * Could it have been an accidental power-off? > * Hardware bug? > * Something installed from experimental? > > Guillem didn't say it was hard to detect, the text you quoted says > "very hard > time trying to pin point". > > Steve Of course I can't know for sure, but if an upgrade "lost" a file, I would imagine a user would file a bug against either the kernel (blaming the filesystem) or dpkg (blaming the package manager). That's what I assume I would do in that situation. Failing that, I suppose the fallback is reaching out to the usual support channels - generalist mailing list, irc. Has there been an increase (or any at all) in bug reports about files disappearing on the kernel/dpkg/apt? Has there been an increase (or any at all) of support request about disappeared files on debian-devel or debian-user? I mean, from my experience our users are very vocal when things break badly, even if they don't know exactly where the root cause is - I am used to see bugs filed against src:nvidia-graphics-driver pretty much anytime anything remotely related to "show stuff on screen" goes wrong, if there happens to be an nvidia card in use :-) -- Kind regards, Luca Boccassi
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