Messages in this thread | | | Subject | Re: 2.6.19-rt1 Bug | From | Daniel Walker <> | Date | Thu, 30 Nov 2006 14:06:37 -0800 |
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/* * Spinlocks are used for interfaces that can be possibly called at * interrupt level */ ACPI_EXTERN raw_spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */ ACPI_EXTERN raw_spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
The problem is these two raw locks. There don't look like they could get called from real interrupt context.
Daniel
On Thu, 2006-11-30 at 21:36 +0100, joel silvestre wrote: > Hi, > > comes from an Intel core duo laptop running > kernel-rt-2.6.19-1.rt1.0001.i686.rpm on Fedora 6. > > joël > > Nov 30 21:24:40 localhost kernel: BUG: scheduling with irqs disabled: > IRQ 9/0x00000001/77 > Nov 30 21:24:40 localhost kernel: caller is rt_spin_lock_slowlock > +0x106/0x18a > Nov 30 21:24:40 localhost kernel: [<c0104e1b>] dump_trace+0x64/0x1cc > Nov 30 21:24:40 localhost kernel: [<c0104f9c>] show_trace_log_lvl > +0x19/0x2e > Nov 30 21:24:40 localhost kernel: [<c01052e0>] show_trace+0x12/0x14 > Nov 30 21:24:40 localhost kernel: [<c01052f9>] dump_stack+0x17/0x19 > Nov 30 21:24:40 localhost kernel: [<c032c0ac>] schedule+0x71/0xe7 > Nov 30 21:24:40 localhost kernel: [<c032cc04>] rt_spin_lock_slowlock > +0x106/0x18a > Nov 30 21:24:40 localhost kernel: [<c032d0a5>] rt_spin_lock+0x20/0x22 > Nov 30 21:24:40 localhost kernel: [<c0123267>] __wake_up+0x13/0x50 > Nov 30 21:24:40 localhost kernel: [<c0230bd4>] acpi_ec_gpe_handler > +0x54/0x8b > Nov 30 21:24:40 localhost kernel: [<c021dff5>] acpi_ev_gpe_dispatch > +0x68/0x163 > Nov 30 21:24:40 localhost kernel: [<c021e189>] acpi_ev_gpe_detect > +0x99/0xe0 > Nov 30 21:24:40 localhost kernel: [<c021c791>] > acpi_ev_sci_xrupt_handler+0x15/0x1d > Nov 30 21:24:40 localhost kernel: [<c0217530>] acpi_irq+0xe/0x18 > Nov 30 21:24:40 localhost kernel: [<c015925b>] handle_IRQ_event > +0x45/0xc1 > Nov 30 21:24:40 localhost kernel: [<c01598ce>] thread_simple_irq > +0x39/0x6c > Nov 30 21:24:40 localhost kernel: [<c0159d11>] do_irqd+0xdd/0x298 > Nov 30 21:24:40 localhost kernel: [<c013a8cf>] kthread+0xc2/0xef > Nov 30 21:24:40 localhost kernel: [<c0104b5b>] kernel_thread_helper > +0x7/0x10 > Nov 30 21:24:40 localhost kernel: ======================= > Nov 30 21:24:41 localhost kernel: BUG: scheduling while atomic: IRQ > 9/0x00000001/77, CPU#1 > Nov 30 21:24:41 localhost kernel: [<c0104e1b>] dump_trace+0x64/0x1cc > Nov 30 21:24:41 localhost kernel: [<c0104f9c>] show_trace_log_lvl > +0x19/0x2e > Nov 30 21:24:41 localhost kernel: [<c01052e0>] show_trace+0x12/0x14 > Nov 30 21:24:41 localhost kernel: [<c01052f9>] dump_stack+0x17/0x19 > Nov 30 21:24:41 localhost kernel: [<c032b204>] __schedule+0x84/0xd91 > Nov 30 21:24:41 localhost kernel: [<c032c106>] schedule+0xcb/0xe7 > Nov 30 21:24:41 localhost kernel: [<c032cc04>] rt_spin_lock_slowlock > +0x106/0x18a > Nov 30 21:24:41 localhost kernel: [<c032d0a5>] rt_spin_lock+0x20/0x22 > Nov 30 21:24:41 localhost kernel: [<c0123267>] __wake_up+0x13/0x50 > Nov 30 21:24:41 localhost kernel: [<c0230bd4>] acpi_ec_gpe_handler > +0x54/0x8b > Nov 30 21:24:41 localhost kernel: [<c021dff5>] acpi_ev_gpe_dispatch > +0x68/0x163 > Nov 30 21:24:41 localhost kernel: [<c021e189>] acpi_ev_gpe_detect > +0x99/0xe0 > Nov 30 21:24:41 localhost kernel: [<c021c791>] > acpi_ev_sci_xrupt_handler+0x15/0x1d > Nov 30 21:24:41 localhost kernel: [<c0217530>] acpi_irq+0xe/0x18 > Nov 30 21:24:41 localhost kernel: [<c015925b>] handle_IRQ_event > +0x45/0xc1 > Nov 30 21:24:41 localhost kernel: [<c01598ce>] thread_simple_irq > +0x39/0x6c > Nov 30 21:24:41 localhost kernel: [<c0159d11>] do_irqd+0xdd/0x298 > Nov 30 21:24:41 localhost kernel: [<c013a8cf>] kthread+0xc2/0xef > Nov 30 21:24:41 localhost kernel: [<c0104b5b>] kernel_thread_helper > +0x7/0x10 > Nov 30 21:24:41 localhost kernel: ======================= > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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