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SubjectRe: ALSA timer and 2.6.0-test1 panic
Date
mru@users.sourceforge.net (Måns Rullgård) writes:

> I get thousands of these messages when using the ALSA timer in kernel
> 2.6.0-test1:
>
> bad: scheduling while atomic!
> Call Trace:
> [<c0118408>] schedule+0x3ab/0x3b0
> [<c0123190>] schedule_timeout+0x5f/0xb3
> [<d08fffb6>] snd_timer_user_poll+0x2a/0x41 [snd_timer]
> [<c0123128>] process_timeout+0x0/0x9
> [<c0160aa7>] do_poll+0xa1/0xc0
> [<c0160c62>] sys_poll+0x19c/0x28e
> [<c0160035>] __pollwait+0x0/0xc6
> [<c010911b>] syscall_call+0x7/0xb
>
> bad: scheduling while atomic!
> Call Trace:
> [<c0118408>] schedule+0x3ab/0x3b0
> [<c014ed0e>] sys_read+0x61/0x63
> [<c0109142>] work_resched+0x5/0x16
>
> bad: scheduling while atomic!
> Call Trace:
> [<c0118408>] schedule+0x3ab/0x3b0
> [<c014ed0e>] sys_read+0x61/0x63
> [<c0109142>] work_resched+0x5/0x16
>
> Everything works like it should anyhow, until the program stops. At
> that time the kernel panics (killing interrupt handler).

If I disable the preemptive kernel it works fine.

--
Måns Rullgård
mru@users.sf.net

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