isql Unexpected EOF from SQL server

Hi experts!

I'm running following command:
isql /Q "exec mydb.dbo.myProc" /d mydb /E /p /r /S servername

throws following error:

Unexpected EOF from SQL Server. General network error. Check your documentation.
Net-Library error 10054: ConnectionCheckForData (CheckforData()).
DB-Library: DBPROCESS is dead or not enabled.
DB-Library: DBPROCESS is dead or not enabled.
DB-Library: DBPROCESS is dead or not enabled.
DB-Library: DBPROCESS is dead or not enabled.

The stored procedure only executes inserts.
Did anyone encounter such problem? Do you know what can be causing this?
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Can you look at the Error Logs and see if you can find more information?

EOF usually points to a BCP error

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Eugene ZCommented:
check your 'servername' - what sql server Service pack (also post version\edition )do you have?

Also on the sql server check sql server 'Server Network Utility'
to see what network protocols are enabled...

Post result

Eugene ZCommented:
try to run
DBCC CHECKDB for your 'mydb' database

also try to user osql instead of the isql..
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VovinEAuthor Commented:
It seems that transaction log was full.
Eugene ZCommented:
if "It seems that transaction log was full" you will see sql errors log - alerts
otherwice - DBCC DBREindex or maybe in your case  you had Sql server maint optimization plan running.
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