On Wed, 2007-04-04 at 17:42 +0200, Ingo Molnar wrote:
> i mean non-printk related breakages to the normal serial driver - which
> is now surprised by this raw lock in an -rt kernel.
>
> this is a hard issue and there's no easy solution i can see. neither
> having it as a raw lock is a good solu
* Daniel Walker <[EMAIL PROTECTED]> wrote:
> > > struct uart_port {
> > > +#ifdef CONFIG_LATENCY_TIMING
> > > + raw_spinlock_t lock; /* port lock */
> > > +#else
> > > spinlock_t lock; /* port lock */
> > > +#endif
> >
> > ugh - this w
On Wed, 2007-04-04 at 10:51 +0200, Ingo Molnar wrote:
> * Daniel Walker <[EMAIL PROTECTED]> wrote:
>
> > Index: linux-2.6.20/include/linux/serial_core.h
> > ===
> > --- linux-2.6.20.orig/include/linux/serial_core.h
> > +++ linux-2.6.2
* Daniel Walker <[EMAIL PROTECTED]> wrote:
> Index: linux-2.6.20/include/linux/serial_core.h
> ===
> --- linux-2.6.20.orig/include/linux/serial_core.h
> +++ linux-2.6.20/include/linux/serial_core.h
> @@ -213,7 +213,11 @@ struct uart_
On Tue, 2007-04-03 at 11:57 -0700, Daniel Walker wrote:
> With 2.6.21-rc5-rt8 / i386 . If I disable wakeup timing , and enable
> interrupt off timing with latency tracing I can cause,
>
> BUG: scheduling with irqs disabled: IRQ-16/0x/909
> caller is rt_spin_lock_slowlock+0x94/0x190
> [] s
With 2.6.21-rc5-rt8 / i386 . If I disable wakeup timing , and enable
interrupt off timing with latency tracing I can cause,
BUG: scheduling with irqs disabled: IRQ-16/0x/909
caller is rt_spin_lock_slowlock+0x94/0x190
[] show_trace_log_lvl+0x3a/0x60
[] show_trace+0x2d/0x30
[] dump_stack
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