Bug#572664: iwlagn driver is no longer able to manage Intel 5100 AGN wireless controller
On Fri, Mar 05, 2010 at 05:41:34PM +0000, Ben Hutchings wrote:
> On Fri, Mar 05, 2010 at 04:51:55PM +0100, Wouter Verhelst wrote:
> [...]
> > ** Tainted: W (512)
> > * Taint on warning.
> [...]
>
> Please send the warning messages.
Whoa. I hadn't even noticed that.
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: at /build/buildd-linux-2.6_2.6.32-8-amd64-DCxXqz/linux-2.6-2.6.32/debian/build/source_amd64_none/drivers/pci/dmar.c:616 check_zero_address+0x91/0x19b()
[ 0.000000] Hardware name: HP Compaq 2230s (FU312EA)
[ 0.000000] Your BIOS is broken; DMAR reported at address zero!
[ 0.000000] BIOS vendor: Hewlett-Packard; Ver: 68PHU Ver. F.08; Product Version: F.08
[ 0.000000] Modules linked in:
[ 0.000000] Pid: 0, comm: swapper Not tainted 2.6.32-2-amd64 #1
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff814fcd2e>] ? check_zero_address+0x91/0x19b
[ 0.000000] [<ffffffff814fcd2e>] ? check_zero_address+0x91/0x19b
[ 0.000000] [<ffffffff8104dbe8>] ? warn_slowpath_common+0x77/0xa3
[ 0.000000] [<ffffffff8104dc70>] ? warn_slowpath_fmt+0x51/0x59
[ 0.000000] [<ffffffff814d8140>] ? early_idt_handler+0x0/0x71
[ 0.000000] [<ffffffff812f1729>] ? _etext+0x0/0x1e68d7
[ 0.000000] [<ffffffff814ecb69>] ? __early_ioremap+0x1a3/0x23b
[ 0.000000] [<ffffffff814d8140>] ? early_idt_handler+0x0/0x71
[ 0.000000] [<ffffffff814fcd2e>] ? check_zero_address+0x91/0x19b
[ 0.000000] [<ffffffff814d8140>] ? early_idt_handler+0x0/0x71
[ 0.000000] [<ffffffff812f1729>] ? _etext+0x0/0x1e68d7
[ 0.000000] [<ffffffff814fce4a>] ? detect_intel_iommu+0x12/0x8c
[ 0.000000] [<ffffffff814de172>] ? pci_iommu_alloc+0x56/0x61
[ 0.000000] [<ffffffff814ec520>] ? mem_init+0x15/0xe5
[ 0.000000] [<ffffffff814d8afd>] ? start_kernel+0x1f6/0x3dc
[ 0.000000] [<ffffffff814d83b7>] ? x86_64_start_kernel+0xf9/0x106
[ 0.000000] ---[ end trace a7919e7f17c0a725 ]---
Now it is true that around the time when things first got wrong, my BIOS
had been reset due to the battery running out when I was using the
laptop. I had almost forgotten, also because everything seemed to work
fine after the reboot, and didn't connect the dots until just now.
I'll do a reflash of my BIOS and see whether that fixes things. Will let
you know what the result is.
--
The biometric identification system at the gates of the CIA headquarters
works because there's a guard with a large gun making sure no one is
trying to fool the system.
http://www.schneier.com/blog/archives/2009/01/biometrics.html
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