Re: 'vmap allocation failed' with 2 graphics cards and kernel 2.6.28

[Andrew Morton <akpm@linux-foundation.org>]

On Wed, 4 Feb 2009 19:49:23 +0000
Larry Keegan <lk@pfw.demon.co.uk> wrote:

> Dear Chaps,
> 
> I'm experiencing a problem on a Gigabyte GA-G31M-S2L. The problem did
> not occur on kernel 2.6.25, but does on 2.6.28 and 2.6.28.2. I am using
> virgin kernels.
> 
> During boot I swapon <logical_volume>. This worked fine until 2.6.28
> came along. Now, the kernel boots fine, but when I run swapon the
> following error message is displayed:
> 
> vmap allocation failed: use vmalloc=<size> to increase size.

Nick, we should add a dump_stack() there too.

> The error seems to be directly related to the second graphics card
> installed in this machine. Here are the details of the on-board
> graphics chip:
> 
> 00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express
> Integrated Graphics Controller (rev 10) (prog-if 00 [VGA controller])
> Subsystem: Giga-byte Technology Device d000 Flags: bus master, fast
> devsel, latency 0, IRQ 2300 Memory at e6200000 (32-bit,
> non-prefetchable) [size=512K] I/O ports at e400 [size=8]
>         Memory at d0000000 (32-bit, prefetchable) [size=256M]
>         Memory at e6100000 (32-bit, non-prefetchable) [size=1M]
>         Capabilities: [90] MSI: Mask- 64bit- Count=1/1 Enable+
>         Capabilities: [d0] Power Management version 2
> 
> and here are the details of the graphics card I added:
> 
> 01:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300
> SE] (rev a1) (prog-if 00 [VGA controller]) Flags: fast devsel, IRQ 16
>         Memory at e0000000 (32-bit, non-prefetchable) [size=16M]
>         Memory at c0000000 (64-bit, prefetchable) [size=256M]
>         Memory at e1000000 (64-bit, non-prefetchable) [size=16M]
>         [virtual] Expansion ROM at e2000000 [disabled] [size=128K]
>         Capabilities: [60] Power Management version 2
>         Capabilities: [68] MSI: Mask- 64bit+ Count=1/1 Enable-
>         Capabilities: [78] Express Endpoint, MSI 00
>         Capabilities: [100] Virtual Channel <?>
>         Capabilities: [128] Power Budgeting <?>
> 
> When I set the BIOS to initialise the nVidia PCI-Express graphics card
> first I see the vmap error. When I set the BIOS to initialise the
> on-board Intel graphics card first I do not.
> 
> I have upgraded to the latest (F9) BIOS revision, but to no avail. Has
> anyone else come across this before?

This is the first report I've seen.

Unfortunately pre-2.6.28 kernels didn't have /proc/vmallocinfo.

Please send the contents of /proc/vmallocinfo.  Try to avoid
wordwrapping it.

Did we intend to make /proc/vmallocinfo root-only?

Please gather the contents of /proc/iomem for 2.6.25 and for 2.6.28,
perhaps we can work something out from that.

Thanks.