QT hangs at the "done loading" screen after upgrade to 0.13.0

[wachtwoord]

I just upgraded to 0.13.0 from 0.10.2 and when I try to start it it hangs and crashes before the GUI is fully loaded on the "done loading" screen. Is there any way for me to avoid a (slow and long) reindex?

[1715564870]

1715564870

[achow101]

Is that all that's in the log? Does it hang and then you kill it, or does it crash by itself?

[wachtwoord]

Is that all that's in the log? Does it hang and then you kill it, or does it crash by itself?

Well there's a lot above it as I never clean it up. There's nothing below.

The window looks like in the screenshot (not responding) in windows if you then clock the window it starts to "look for a solution" and then gives you a window to exit the crashed application.

[Lauda]

Is that all that's in the log? Does it hang and then you kill it, or does it crash by itself?

There doesn't seem to be an apparent cause for this crash from what I can see. I also doubt that it's a hardware problem as it would likely crash sooner (although still possible).

The window looks like in the screenshot (not responding) in windows if you then clock the window it starts to "look for a solution" and then gives you a window to exit the crashed application.

This is Windows 7 right? Did this happen once or multiple times or does it make you do a reindex after the first crash? You can speed up a reindex by increasing your dbcache, however this error my not be a singular event.

[wachtwoord]

Is that all that's in the log? Does it hang and then you kill it, or does it crash by itself?

There doesn't seem to be an apparent cause for this crash from what I can see. I also doubt that it's a hardware problem as it would likely crash sooner (although still possible).

The window looks like in the screenshot (not responding) in windows if you then clock the window it starts to "look for a solution" and then gives you a window to exit the crashed application.

This is Windows 7 right? Did this happen once or multiple times or does it make you do a reindex after the first crash? You can speed up a reindex by increasing your dbcache, however this error my not be a singular event.

I tried it twice and haven't started the re-index yet as I hope people know another way to resolve this. Does it have merit to try it a third time?

[wachtwoord]

I am able to run bitcoind in daemon mode and communicate with it with bitcoin-cl. However after responding to a few "getinfo" requests it stopped responding. Does this info help at all?

[Lauda]

-snip-

Interesting, but still doesn't tell us much.

BTW I run Bitcoin-qt with the following parameters: "F:\[censored]\bitcoin-qt.exe" -datadir=F:\[censored] --checkblocks=10
Does the checkblocks have any influence on the crash?

I don't think it should. You could try once again with that parameter removed.

If I want to re-index I need to append -reindex -dbcache=2048 correct? I have 8 GB of RAM, how high should I put dbcache for the best result?

Yes, that would set the dbcache to ~2GB. I think that's fine on a 8 GB system as long as you don't do anything that requires a lot of RAM during the reindex.
Keep in mind that you shouldn't bump your own thread like this more than once in 24 hours. Use the edit button.

[wachtwoord]

And at the sixth random restart attempt it worked, loaded and synced. No idea why it worked now and not before. I hope it will be fine after a restart too. Thanks to everyone helping!

[Lauda]

That's strange. However, I've seen this happen with different programs and it would be really hard to discover what (temporarily) went wrong. Let us know if it happens again, or if you need anything else. Good luck with the new client; I still haven't upgraded.