linux-kernel - Re: Oops in 2.6.23-rc1-git9, arch/x86_64/pci/k8-bus.c::fill_mp_bus_to

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 4 Aug 2007 11:15:32 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Yinghai Lu" <yhlu.kernel@...il.com>
Cc:	"Andi Kleen" <ak@...e.de>, "Chuck Ebbert" <cebbert@...hat.com>,
	"Muli Ben-Yehuda" <muli@...ibm.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	riku.seppala@...p.net, "Andy Whitcroft" <apw@...dowen.org>
Subject: Re: Oops in 2.6.23-rc1-git9,
 arch/x86_64/pci/k8-bus.c::fill_mp_bus_to_cpumask()

On Sat, 4 Aug 2007 10:45:31 -0700 "Yinghai Lu" <yhlu.kernel@...il.com> wrote:

> Andrew,
> 
> still need
> x86_64-get-mp_bus_to_node-as-early-v2.patch in the -mm
> it fix

What does it fix?  Much more detail, please.

> diff -puN arch/i386/pci/irq.c~x86_64-get-mp_bus_to_node-as-early-v2
> arch/i386/pci/irq.c
> --- a/arch/i386/pci/irq.c~x86_64-get-mp_bus_to_node-as-early-v2
> +++ a/arch/i386/pci/irq.c
> @@ -136,10 +136,26 @@ static void __init pirq_peer_trick(void)
>                busmap[e->bus] = 1;
>        }
>        for(i = 1; i < 256; i++) {
> +               struct pci_bus *bus = NULL;
> +               struct pci_sysdata *sd;
>                if (!busmap[i] || pci_find_bus(0, i))
>                        continue;
> -               if (pci_scan_bus(i, &pci_root_ops, NULL))
> +               /* Allocate per-root-bus (not per bus) arch-specific data.
> +                * TODO: leak; this memory is never freed.
> +                * It's arguable whether it's worth the trouble to care.
> +                */
> +               sd = kzalloc(sizeof(*sd), GFP_KERNEL);
> +               if (!sd) {
> +                       printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n",
> +                               i);
> +                       continue;
> +               }
> +               sd->node = get_mp_bus_to_node(i);
> +               bus = pci_scan_bus(i, &pci_root_ops, sd);
> +               if (bus)
>                        printk(KERN_INFO "PCI: Discovered primary peer
> bus %02x [IRQ]\n", i);

Wordwrapped, tabs replaced with spaces.

Please, for once and for all, fix your email client?

Thanks.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/