Re: Interrupt sharing problem (kernel freeze)

2000-10-05 Thread Manfred
> Looking at the trace, I can see the cpu wasn't actually doing > anything when it crashed. Well, an interrupt occured, and that > apparently is fatal on my machine. Now I wonder why. It's easy to explain the crash: > >>EIP: Trace: c01127ae Someone called add_timer with either an

Re: Interrupt sharing

2000-09-26 Thread Helge Hafting
Mahadev K Cholachagudda wrote: > [...] > > When an interrupt is delivered, the kernel calls ALL interrupt handlers > > registered for that interrupt. That means all drivers capable of > > sharing interrupts should, ideally, have code in their interrupt handler > > to exit ASAP if no work is nece

Re: Interrupt sharing

2000-09-25 Thread Mahadev K Cholachagudda
- Original Message - From: "Jeff Garzik" <[EMAIL PROTECTED]> To: "Mahadev K Cholachagudda" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Monday, September 25, 2000 7:00 PM Subject: Re: Interrupt sharing > > > On Mon, 25 Sep 2000, Ma

Re: Interrupt sharing

2000-09-25 Thread Richard B. Johnson
On Mon, 25 Sep 2000, Mahadev K Cholachagudda wrote: > Hello to all, > > I have one doubt and is as below. > > > Suppose say the two drivers driver1 and driver2 will install the ISR for a > particular interrupt, say UART0. > After some time the interrupt is generated. At this moment, which driv

Re: Interrupt sharing

2000-09-25 Thread Jeff Garzik
On Mon, 25 Sep 2000, Mahadev K Cholachagudda wrote: > Hello to all, > > I have one doubt and is as below. > > > Suppose say the two drivers driver1 and driver2 will install the ISR for a > particular interrupt, say UART0. > After some time the interrupt is generated. At this moment, which dr