[comp.os.minix] Update on TTY driver

paradis@encore.UUCP (Jim Paradis) (12/19/87)

The recent posting on the subject of message-sending deadlocks
prompted me to take a second look at my serial TTY driver.  Sure
enough, that's what was causing my system hangs.  Apparently,
the RESUME message to the filesystem (sent out of interrupt service
when we get enough characters to satisfy a read request) was 
occasionally colliding with a READ, WRITE, or IOCTL message being
sent from the filesystem to the TTY driver.  Now, I have to figure
out a workaround...

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