linux-kernel - Re: [git pull] IOMMU Updates for v3.7-rc1

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 for Android: free password hash cracker in your pocket

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

Date:	Wed, 10 Oct 2012 09:30:22 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Andrew Oakley <andrew@....is-a-geek.net>
Cc:	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [git pull] IOMMU Updates for v3.7-rc1

Hi Andrew,

On Tue, Oct 09, 2012 at 10:45:32PM +0100, Andrew Oakley wrote:
> On Fri, 5 Oct 2012 17:23:12 +0200
> Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@...lic.gmane.org> wrote:

> ACPI: Core revision 20120711
> ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> Kernel panic - not syncing: timer doesn't work through Interrupt-remapped IO-APIC
> Pid: 1, comm: swapper/0 Not tainted 3.6.0+ #2
> Call Trace:
>  [<ffffffff8163f617>] ? panic+0xc5/0x1d0
>  [<ffffffff8163f76e>] ? printk+0x4c/0x51
>  [<ffffffff81c96b52>] ? setup_IO_APIC+0x325/0x710
>  [<ffffffff81c947b5>] ? native_smp_prepare_cpus+0x2b9/0x334
>  [<ffffffff81c87b53>] ? kernel_init+0x59/0x190
>  [<ffffffff81643b84>] ? kernel_thread_helper+0x4/0x10
>  [<ffffffff81c87afa>] ? start_kernel+0x2c7/0x2c7
>  [<ffffffff81643b80>] ? gs_change+0x13/0x13
> 
> There is a patch to fix a similar problem (32ab31e) for the Intel IRQ
> remapping code but I don't know if this is likely to be the same issue
> or not.

Can you please boot with 'amd_iommu_dump nointremap' on your kernel
command line and post dmesg? I guess your ACPI table is broken in some
way.

The problem seen on VT-d exists on AMD too, but I have a workaround for
that in the code already. This must be something else...

Thanks,

	Joerg


--
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/