last few linux-next builds (at least from next-20120806 to
next-20120821) fail to boot on ia64 with these messages:
...
Total of 2 processors activated (3891.20 BogoMIPS).
SMBIOS 2.3 present.
NET: Registered protocol family 16
ACPI: bus type pci registered
bio: create slab <bio-0> at 0
ACPI: Added _OSI(Module Device)
ACPI: Added _OSI(Processor Device)
ACPI: Added _OSI(3.0 _SCP Extensions)
ACPI: Added _OSI(Processor Aggregator Device)
INFO: rcu_sched self-detected stall on CPUINFO: rcu_sched detected
stalls on CPUs/tasks: { 1} (detected by 0, t=15002 jiffies)
Call Trace:
[<a0000001000154e0>] show_stack+0x80/0xa0
sp=a000000101247a20 bsp=a0000001012410b0
[<a000000100d76df0>] dump_stack+0x30/0x50
sp=a000000101247bf0 bsp=a000000101241098
[<a0000001001311e0>] print_other_cpu_stall+0x440/0x540
sp=a000000101247bf0 bsp=a000000101241038
[<a000000100131860>] rcu_check_callbacks+0x580/0x780
sp=a000000101247bf0 bsp=a000000101240fd8
[<a0000001000967d0>] update_process_times+0x50/0xa0
sp=a000000101247bf0 bsp=a000000101240fa8
[<a00000010003f7f0>] timer_interrupt+0x130/0x3c0
sp=a000000101247bf0 bsp=a000000101240f58
[<a00000010011ee00>] handle_irq_event_percpu+0x80/0x460
sp=a000000101247bf0 bsp=a000000101240ef0
[<a0000001001266c0>] handle_percpu_irq+0x120/0x1a0
sp=a000000101247bf0 bsp=a000000101240ec0
[<a00000010011e0e0>] generic_handle_irq+0xa0/0xe0
sp=a000000101247bf0 bsp=a000000101240ea0
[<a0000001000117b0>] ia64_handle_irq+0x110/0x440
sp=a000000101247bf0 bsp=a000000101240e18
[<a00000010000c140>] ia64_native_leave_kernel+0x0/0x270
sp=a000000101247bf0 bsp=a000000101240e18
[<a000000100013bf0>] default_idle+0x130/0x180
sp=a000000101247dc0 bsp=a000000101240dd0
[<a000000100014ee0>] cpu_idle+0x1c0/0x3c0
sp=a000000101247e20 bsp=a000000101240d68
[<a000000100d379e0>] rest_init+0xe0/0x100
sp=a000000101247e20 bsp=a000000101240d50
[<a0000001010f9360>] start_kernel+0x760/0x870
sp=a000000101247e20 bsp=a000000101240cd0
[<a000000100d378c0>] start_ap+0x760/0x780
sp=a000000101247e30 bsp=a000000101240bc0
{ 1} (t=15613 jiffies)
Call Trace:
... stack traces keep coming every 64 seconds.
Any clues on where I should look to debug this?
Thanks
-Tony
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