Re: PROBLEM: 4.1.4 -- Kernel Panic on shutdown

[Christoph Lameter <cl@linux.com>]

> [1.] One line summary of the problem:
>     4.1.4 -- Kernel Panic on shutdown

This is a kfree of an object that was not allocated via the slab
allocators or was already freed. If you boot with the kernel command line
argument "slub_debug" then you could get some more information. Could also
be that memory was somehow corrupted.

The backtrace shows that this is a call occurring in the
scheduler.

CCing scheduler developers.



Call Trace:
 <IRQ>
 [<ffffffff81072189>] free_sched_group+0x29/0x30
 [<ffffffff810721a0>] free_sched_group+rcu+0x10/0x20
 [<ffffffff81099771>] rcu_process_callbacks+0x231/0x510
 [<ffffffff81055cee>] __do_softirq+0xee/0x1e0
 [<ffffffff81055ef5>] irq_exit+0x55/0x60
 [<ffffffff810382f5>] smp_apic_timer_interrupt+0x45/0x60
 [<ffffffff815e4f5b>] apic_timer_interrupt+0x6b/0x70
 <EOI>
 [<ffffffff81071b61>] ? finish_task_switch+0x61/0x100
 [<ffffffff814ddc7d>] ? cpuidle_enter_state+0xad/0x170
 [<ffffffff814ddc76>] ? cpuidle_enter_state+0xa6/0x170
 [<ffffffff814ddd62>] cpuidle_enter+0x12/0x20
 [<ffffffff810883a8>] cpu_startup_entry+0x268/0x2e0
 [<ffffffff81036437>] start_secondary+0x167/0x170

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