I'm involved with modifying a device driver for new hardware.
The architecture is currently:
open device
do IOCTL (spinning a kernel thread and doing initialization)
There is currently an IOCTL which short-circuits to the close method.
Turns out it seems necessary to do this IOCTL -- close never gets
invoked.
What can cause a close not to get invoked? BTW, the close is returning
with a 0 status to the application ...(it definitely did NOT
get invoked in the driver)
In ps:
F UID PID PPID PRI NI VSZ RSS WCHAN STAT TTY TIME COMMAND
040 33839 750 1 7 0 1064 348 end D pts/2 0:00 ./openinit
040 33839 630 1 0 0 1064 348 end D pts/0 0:00 ./openinit
These are the kernel threads which won't go away.
I'm running 2.2.12 with the bigphysarea patch...
(leave my work address on the distribution -- I get linux kernel at home...)
marty mleisner@eng.mc.xerox.com
Don't confuse education with schooling.
Milton Friedman to Yogi Berra
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This archive was generated by hypermail 2b29 : Mon Apr 23 2001 - 21:00:24 EST