Messages in this thread | | | From | Klaus Herb <> | Subject | ppp_synctty and in_interrupt | Date | Thu, 13 Jun 2002 16:25:33 +0200 |
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Hello, I am currently developing a tty-Driver which is used for synchronous PPP.
System: Board Special Hardware with a Motorola XPC8260 Microcontroller OS Elinos V2 with Kernel Version 2.4.3 PPP pppd and ppp Modules Version 2.4.1
The following Problem occurs:
The ppp_synctty ldisc only calls my ttywrite function in interrupt context. But to avoid a race condition I must include a Semaphore in my ttywrite function, so I get a Kernel Oops when this Semaphore causes a call to schedule().
Is there a way to stop this ppp_synctty ldisc from sending in Interrupt Context? or Why does this ldisc only write in interrupt context?
Please CC your replay to klaus.herb@ikon-gmbh.de
Thanks!
Klaus Herb
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