Dear List,

i'm running Firebird SQL 2.5.1 on a 64bit FreeBSD 9.0 machine. We are
using a .NET 2.0 based accounting application from two Windows machines on
a LAN accessing a database no bigger than 10BM's. From time to time (after
30 minutes, or 5 hours) the clients disconnects from the db and cannot
reconnect with the following error message in the firebird.log: Operating
system call pthread_mutex_lock failed. Error code 22

The accounting software's support company don't know what is causing it,
their advice was to move the db to a Windows machine. I don't know
Firebird well enough so i'm asking you wether this error is application
related or i've misconfigured something on the database server?

Any help would be appreciated!

Best regards,
Mate