Report a setup error instead of aborting if db is locked

[sentry-io]

Sentry Issue: DESKTOP-WIN-AND-MAC-B7S

10-14 14:14:31:710 [ fatal default ]:	ENFORCE: "allow_failure" in file C:\_\66b504ca\ownCloud-2.9.1.5500-vfs\src\common\ownsql.cpp, line 271 int __cdecl OCC::SqlQuery::prepare(const class QByteArray &,bool) with message: SQLITE Prepare error

EXCEPTION_ACCESS_VIOLATION_WRITE: Fatal Error: EXCEPTION_ACCESS_VIOLATION_WRITE
  File "utility.cpp", line 410, in OCC::Utility::crash
  File "logger.cpp", line 110, in OCC::Logger::doLog
  File "qlogging.cpp", line 1836, in qt_message_print
  File "qlogging.cpp", line 373, in qt_message
  File "qlogging.cpp", line 885, in QMessageLogger::fatal
...
(16 additional frame(s) were not displayed)

[TheOneRing]

https://github.com/owncloud/client/blob/master/src/gui/folder.cpp#L174 is related

[sentry-io]

Sentry issue: DESKTOP-WIN-AND-MAC-BJF

[TheOneRing]

sqlite browser can be used lock the db before the start of the client.

[SagarGi]

@TheOneRing for this issue i am unable to crash or lock the database to reproduce it? so i am unkown about sqlite to lock it so i am confused for this issue.

[TheOneRing]

When using the 2.10.0 client you can open the db in https://sqlitebrowser.org/ .
If you then start the client it will be unresponsive for some time, then crash.

2.10.1 should be unresponsive for a short time, then start and mark the affected folder with a red box.