cheese: page allocation failure. order:5, mode:0x8004

[Ken Foskey]

Binary package hint: cheese

I had my webcam working but I have not used it and since upgraded to Jaunty.

Cheese will not open it and gives an error:

cheese: page allocation failure. order:5, mode:0x8004

Google leads me to this page:

http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.30-rc4

However I am not running this kernel: Ubuntu SMP Fri May 1 19:31:32 UTC 2009 (Ubuntu 2.6.28-12.43-generic)

So the kernel bug is in the 28 version Jaunty is based on.

[Filippo Argiolas (fargiolas)]

The ChangeLog says this bug has been fixed in 2.6.30 with commit:

commit a8aa401f38cfb5fa26e970b48e93fb851d68fe64
Author: Johannes Berg <email address hidden>
Date: Sat Apr 18 11:00:39 2009 +0200

    USB: pass mem_flags to dma_alloc_coherent

    When I want to use my webcam, I get:

                                     vvvvvvv
    cheese: page allocation failure. order:5, mode:0x8004
    Pid: 8100, comm: cheese Not tainted 2.6.30-rc2-wl-dirty #102
    Call Trace:
     [<ffffffff802c5d8e>] __alloc_pages_internal+0x3fe/0x520
     [<ffffffff80210a20>] dma_generic_alloc_coherent+0x90/0x120
     [<ffffffffa001c91e>] hcd_buffer_alloc+0xee/0x130 [usbcore]
     [<ffffffffa000d52d>] usb_buffer_alloc+0x2d/0x40 [usbcore]
     [<ffffffffa0160e14>] uvc_alloc_urb_buffers+0x84/0x140 [uvcvideo]
     [<ffffffffa0160ff6>] uvc_init_video+0x126/0x400 [uvcvideo]
     [...]

    Oddly, I remembered fixing this and putting in __GFP_NOWARN
    because uvcvideo retries a smaller allocation. However, the
    allocation function doesn't pass the gfp flags through to
    dma_alloc_coherent so we still get the warning!

    Signed-off-by: Johannes Berg <email address hidden>
    Signed-off-by: Greg Kroah-Hartman <email address hidden>

[Jeremy Foshee (jeremyfoshee)]

Hi Ken,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 378974

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

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[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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