Calibre crashes a lot when sending books to Kobo

redlob · 07-09-2021, 05:15 AM

Hi Guys,

Long time Calibre user here (currently on Mac Big Sur) and have been using different Kobo devices in the past.

Now using a Kobo Aura H2O 2nd edition for the last few years and syncing has always been great.

Recently, when I try to send books to my device, calibre crashes a lot. First I thought it had to do with maybe some weird stuff in de ePubs, so I ran the book editor, did some cleaning up and everything was well again.

But now, even after cleanup Calibre will crashing when sending books to the device. Not always, but definitely a lot more than before.

I've been on a MacBook Air M1 for a few months now and I can't recall that syncing was this problematic when I first got it. It seems to have gotten worse in the last few weeks.

Anyone experiencing the same?

Edit: Just tried to send 2 books at the same time and Calibre crashed. Then I tried to send the books one by one and it worked fine... so strange....

Crash log: here

kovidgoyal · 07-09-2021, 12:19 PM

Are you using the kobotouch extended plugin, IIRC that does a bunch of parallel processing that might be the cause.

redlob · 07-09-2021, 01:19 PM

Yes I am. And indeed, when I use the regular kobotouch driver all is well. I'll make a note of this in the kobotouchextended-thread. Thanks!

DNSB · 07-09-2021, 01:24 PM

Quote:

Originally Posted by redlob

Yes I am. And indeed, when I use the regular kobotouch driver all is well. I'll make a note of this in the kobotouchextended-thread. Thanks!

There is a new version (3.5.1) of the KoboTouchExtended driver which limits the number of threads. If calibre hasn't informed you of a new plugin, try installing it manually from the first message in the Kobo Touch Extended Driver thread.

davidfor · 07-09-2021, 10:07 PM

Quote:

Originally Posted by DNSB

There is a new version (3.5.1) of the KoboTouchExtended driver which limits the number of threads. If calibre hasn't informed you of a new plugin, try installing it manually from the first message in the Kobo Touch Extended Driver thread.

For some reason that version hasn't been picked up by calibre. Other updated plugins have been, so it is something about this one. I remember it happening before, but, I don't remember the solution.

chaley · 07-10-2021, 07:42 AM

Quote:

Originally Posted by davidfor

For some reason that version hasn't been picked up by calibre. Other updated plugins have been, so it is something about this one. I remember it happening before, but, I don't remember the solution.

Guessing: it could be the indirection when version is set in plugin.../device/driver.py. I looked at the plugin update check code and it does its processing using abstract syntax trees, not compiled code. It isn't clear what the code does, but it seems to save {'version': xxx} where xxx is what it finds in the main plugin class. In this case a reference to a global, not a tuple.

anesthezea · 01-03-2022, 06:13 PM

Did you ever resolve this issue? I'm having the same problem with my Kobo and Calibre. I'm also on an M1 Macbook.

07-09-2021, 05:15 AM	#1
redlob Connoisseur Posts: 61 Karma: 10 Join Date: Jul 2010 Location: The Netherlands Device: Kobo Glo HD, Kobo Aura H2O edition 2, Kobo Libra 2	Calibre crashes a lot when sending books to Kobo Hi Guys, Long time Calibre user here (currently on Mac Big Sur) and have been using different Kobo devices in the past. Now using a Kobo Aura H2O 2nd edition for the last few years and syncing has always been great. Recently, when I try to send books to my device, calibre crashes a lot. First I thought it had to do with maybe some weird stuff in de ePubs, so I ran the book editor, did some cleaning up and everything was well again. But now, even after cleanup Calibre will crashing when sending books to the device. Not always, but definitely a lot more than before. I've been on a MacBook Air M1 for a few months now and I can't recall that syncing was this problematic when I first got it. It seems to have gotten worse in the last few weeks. Anyone experiencing the same? Edit: Just tried to send 2 books at the same time and Calibre crashed. Then I tried to send the books one by one and it worked fine... so strange.... Crash log: here Last edited by redlob; 07-09-2021 at 05:23 AM.

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07-09-2021, 12:19 PM	#2
kovidgoyal creator of calibre Posts: 43,860 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Are you using the kobotouch extended plugin, IIRC that does a bunch of parallel processing that might be the cause.

07-09-2021, 01:19 PM	#3
redlob Connoisseur Posts: 61 Karma: 10 Join Date: Jul 2010 Location: The Netherlands Device: Kobo Glo HD, Kobo Aura H2O edition 2, Kobo Libra 2	Yes I am. And indeed, when I use the regular kobotouch driver all is well. I'll make a note of this in the kobotouchextended-thread. Thanks!

01-03-2022, 06:13 PM	#7
anesthezea Groupie Posts: 167 Karma: 2627964 Join Date: Aug 2010 Location: Alabama, USA Device: Kobo Aura One, Kobo Libra 2	Did you ever resolve this issue? I'm having the same problem with my Kobo and Calibre. I'm also on an M1 Macbook.

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