Peter Breuer wrote:
> Hello,
> I finally had the time to test some different settings...
>
> I wrote the following program:
> #include <sys/mman.h>
> #include <native/task.h>
> #include <native/intr.h>
>
> #define IRQ_NUMBER 100 /* Intercept interrupt */
> #define IRQ_MODE I_NOAUTOENA //I_PROPAGATE //0
> #define TASK_PRIO 99 /* Highest RT priority */
> #define TASK_MODE T_FPU /* */
> #define TASK_STKSZ 0 /* Stack size (use default one) */
> #define PIPE_MINOR 0
>
> RT_INTR intr_desc;
>
> RT_TASK server_desc;
>
>
> void irq_server (void *cookie)
>
> {
> int err =
> rt_intr_create(&intr_desc,"MyIrq",IRQ_NUMBER,IRQ_MODE);
> printf("int create: %d\n", err);
> err = rt_intr_enable(&intr_desc);
> printf("enable int: %d\n", err);
> printf("begin..\n");
> err = rt_intr_wait(&intr_desc,TM_INFINITE);
> printf("int wait:%d\n", err);
>
> }
>
> int main (int argc, char *argv[])
>
> {
> int err;
> int a;
> printf("Programmstart\n");
> mlockall(MCL_CURRENT|MCL_FUTURE);
>
> err = rt_task_create(&server_desc,
> "MyIrqServer",
> TASK_STKSZ,
> TASK_PRIO,
> TASK_MODE);
> printf("task create: %d\n", err);
> rt_task_start(&server_desc,&irq_server,NULL);
> }
>
> void cleanup (void)
>
> {
> rt_intr_delete(&intr_desc);
> rt_task_delete(&server_desc);
> }
>
> When I start it with the compiled xenomai, it runs until the
> rt_intr_wait() and then quits, without any message. It doesnt even
> execute printf("int wait:%d\n", err)
> create_task, create_intr and enable_intr all return 0.
> When I start the programm with a kernel, where xenomai isnt compiled in,
> then it quits and complains about it.
> When I start the programm with xenomai debug settings compiled in the
> kernel, the system freezes at task creating. Heres the output:
> Programmstart
> taskXenomai: fatal: bug at kernel/xenomai/nucleus/shadow.c
> :1128 (!irqs_disabled_hw())
> CPU PID PRI TIMEOUT STAT NAME
> 0 0 -1 0 00400088 ROOT
>> 0 923 99 0 00300180 MyIrqServer
> Master time base: clock=114327768
> [<c002bde4>] (show_stack+0x0/0x48) from [<c006e69c>] (xnshadow_harden
> +0x1d0/0x21c)
> [<c006e4cc>] (xnshadow_harden+0x0/0x21c) from [<c006ec00>]
> (xnshadow_wait_barrier+0x124/0x138)
> [<c006eadc>] (xnshadow_wait_barrier+0x0/0x138) from [<c006fbe4>]
> (xnshadow_sys_barrier+0x14/0x18)
> r6:c309a000 r5:c309bfb0 r4:00000001
> [<c006fbd0>] (xnshadow_sys_barrier+0x0/0x18) from [<c006ff70>]
> (losyscall_event+0xb4/0x1ac)
> [<c006febc>] (losyscall_event+0x0/0x1ac) from [<c0061214>]
> (__ipipe_dispatch_event+0xd0/0x1c8)
> [<c0061144>] (__ipipe_dispatch_event+0x0/0x1c8) from [<c002cc5c>]
> (__ipipe_syscall_root+0x80/0x100)
> [<c002cbdc>] (__ipipe_syscall_root+0x0/0x100) from [<c0028108>]
> (vector_swi+0x68/0xa8)
>
> Any ideas?
> is the irq-number, that I need for the rt_intr_create() the same number
> that is shown in /proc/interrupts?
> thx, greetings,
> Peter
You are using a too old patch. Please use an I-pipe patch for linux
2.6.28 or above.
--
Gilles.
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