sybase load 数据报错：Datastream processing out of sync

[adwnjt]

大家看到"DB-Library Process Dead - Connection Broken"的时候肯定都说网络问题，实际网络一切正常。
先说下具体情况
第1遍执行load命令，一切正常；再执行第2遍load命令就会有下面的报错。
再执行第3遍load命令，一切正常；第4遍，再报错。。。就是会这样循环

原因就是执行了下面的命令，更改了数据写入方式。
exec sp_deviceattr bhdata1, directio, false
再改回原来，执行
exec sp_deviceattr bhothlog, dsync, true
或者执行
exec sp_deviceattr bhothlog, directio, true
之后
load几遍都不会报错，请问，更改写入方式为什么会报这个错？
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load命令：
load database BF_APP from '/bakf/20161015/2bf_app.dump'
全部报错内容：
Backup Server session id is: 121. Use this value when executing the 'sp_volchanged' system stored procedure after fulfilling any volume change request from the Backup Server.
Backup Server: 6.28.1.1: Dumpfile name 'BF_APP1628913118 ' section number 1 mounted on disk file '/bakf/20161015/2bf_app.dump'
Backup Server: 4.188.1.1: Database BF_APP: 3444 kilobytes (1%) LOADED.
DB-Library: Possible network error: Bad token from SQL Server: Datastream processing out of sync.
Net-Library error 0:
DB-Library: Possible network error: Bad token from SQL Server: Datastream processing out of sync. General network error. Check your documentation.
Net-Library error 10038: ConnectionClose (closesocket()).
DB-Library: Possible network error: Bad token from SQL Server: Datastream processing out of sync. General network error. Check your documentation.
Net-Library error 10038: ConnectionClose (closesocket()).
DB-Library: Possible network error: Bad token from SQL Server: Datastream processing out of sync. General network error. Check your documentation.
Net-Library error 10038: ConnectionClose (closesocket()).
DB-Library: Possible network error: Bad token from SQL Server: Datastream processing out of sync. General network error. Check your documentation.
Net-Library error 10038: ConnectionClose (closesocket()).
Backup Server: 4.188.1.1: Database BF_APP: 39430 kilobytes (19%) LOADED.

DB-Library Process Dead - Connection Broken