Re: [LKP] [PCI, x86] 991de2e590: EIP is at _raw_spin_unlock_irqrestore
On 2015/8/25 21:48, kernel test robot wrote:
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 991de2e59090e55c65a7f59a049142e3c480f7bd
Author: Jiang Liu <jiang.liu(a)linux.intel.com>
AuthorDate: Wed Jun 10 16:54:59 2015 +0800
Commit: Bjorn Helgaas <bhelgaas(a)google.com>
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(a)linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas(a)google.com>
Acked-by: Thomas Gleixner <tglx(a)linutronix.de>
Hi Bjorn and Fengguang,
I have tracked down this regression, it's caused by a flaw
in ACPI BIOS implementation, and I have a draft patch for it.
I will send out the patch after v4.3-rc1 is out with more testings.
Thanks!
Gerry