11-22-2004
I always believe error messages until they are proven wrong. I have to believe that job is suspended because it wants to write on the controlling terminal.
To be more specific, there are two signals used for background processes:
SIGTTIN background process attempting read
SIGTTOU background process attempting write
Both of these deal with reads and writes to the controlling terminal. In the case of a read, there is no option, the signal gets delivered to the process. In the call of a write, this is user configurable. "stty -tostop" will disable the generation of SIGTOU thus allowing a background process to write.
And ZB, are you sure it wasn't "suspended (tty input)"? Both messages can appear and I don't recall a shell mistaking one state for the other. But I don't use tcsh either.
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