Thread: Elipsa Ghost eBook Purchase on an Elipsa
View Single Post
Old 08-22-2021, 09:22 PM   #36
davidfor
Grand Sorcerer
davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.
 
Posts: 24,905
Karma: 47303824
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by NiLuJe View Post
FWIW, I was just looking into weirdly missing unmounts on the Elipsa, and, yeah, the lazy unmount is really sweeping a lot of stuff under the rug, stuff that might actually be problematic.

As in, quite a few Nickel threads *still* have fds open'ed on (at least?) book files, which means the filesystem is never actually unmounted. Which is obviously how Really Bad Stuff Happens (TM).

I happened to be testing a CBZ here, and hwmon, QProcessManager, eventengine, QEvdevTouch, QTBearerThread, imageprovider and QtHTTPThread all had a couple of fds opened on the last book.

Sidebar: I haven't looked at this stuff in a *long* time, so, this may not be specific to the Elipsa, so this isn't excluding the possibility that the Elipsa's storage solution might just be more prone to this kind of badness .

(for instance, I can almost reliably trash my ZSH history (which lives in onboard) if I *properly* soft-reboot the Elipsa with the shell open. That never happens anywhere else).

EDIT: This is fairly easy to double-check with ForceWifi and a real lsof binary. fds from MNT_DETACHED fs end up relocated to / (with the rest of their path, relative to the original mountpoint, preserved) in the listing.

(I happened to notice the missing unmounts because I track 'em in KFMon & NanoClock ^^).

EDIT²: On the upside, quickly tested with a notebook, a PDF, an ePub, a KePub, and a KePub w/ annotations, and I can only reproduce a consistent failure with a CBZ .

EDIT³: Issue persists as long as a CBZ has been open'ed during that boot session, though :/.
Now that's interesting. I wouldn't even have thought of CBZ as being a problem as I assumed it would have been a low user of the database. But, it does put in an entry for each image into the database.

And it would seem to explain @Cootey's problems. That's assuming the mentioned Manga are in CBZ or CBR (I'm assuming these are handled the same) and not epub or kepub.

Anyway, I'll have a play and see what I can see.
davidfor is offline   Reply With Quote