Re: [PCI, x86] RIP: 0010:[<ffffffff81a2ef16>] [<ffffffff81a2ef16>] _raw_spin_unlock_irqrestore

From: Borislav Petkov
Date: Sun Sep 27 2015 - 10:15:41 EST


On Sun, Sep 27, 2015 at 09:15:24PM +0800, Fengguang Wu wrote:
> Greetings,
>
> 0day kernel testing robot got the below dmesg and the first bad commit is
>
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>
> commit 991de2e59090e55c65a7f59a049142e3c480f7bd
> Author: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
> AuthorDate: Wed Jun 10 16:54:59 2015 +0800
> Commit: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> CommitDate: Thu Jul 30 14:05:57 2015 -0500
>
> PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()
>
> To support IOAPIC hotplug, we need to allocate PCI IRQ resources on demand
> and free them when not used anymore.
>
> Implement pcibios_alloc_irq() and pcibios_free_irq() to dynamically
> allocate and free PCI IRQs.
>
> Remove mp_should_keep_irq(), which is no longer used.
>
> [bhelgaas: changelog]
> Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

This one is seriously b0rked:

https://lkml.kernel.org/r/20150926164651.GA3640@xxxxxxx

--
Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
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