linux-kernel - Re: Boot time Bluetooth BUG: warning: (value

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Message-ID: <Pine.LNX.4.64.0702182216060.25686@twin.jikos.cz>
Date:	Sun, 18 Feb 2007 22:23:46 +0100 (CET)
From:	Jiri Kosina <jikos@...os.cz>
To:	"Fortier,Vincent [Montreal]" <Vincent.Fortier1@...GC.CA>
cc:	linux-kernel@...r.kernel.org, Marcel Holtmann <marcel@...tmann.org>
Subject: Re: Boot time Bluetooth BUG: warning: (value > m) at hid-core.c:793

On Fri, 16 Feb 2007, Fortier,Vincent [Montreal] wrote:

> I m using a Logitech MX 5000 keyboard with an included MX 1000 mouse,
> both bluetooth using the same USB reciever.
> When the USB reciever is already plugged-in at boot-time and the
> Bluetooth service fires-up I get this message:
>  =======================
> BUG: warning: (value > m) at
> drivers/usb/input/hid-core.c:793/implement() (Tainted: P     )
>  [<c0405018>] dump_trace+0x69/0x1b6
>  [<c040517d>] show_trace_log_lvl+0x18/0x2c
>  [<c0405778>] show_trace+0xf/0x11
>  [<c0405875>] dump_stack+0x15/0x17
>  [<c05993c0>] hid_output_report+0x23c/0x2e7
>  [<c05994b7>] hid_submit_ctrl+0x4c/0x1d9
>  [<c05997fd>] hid_submit_report+0x134/0x15f
>  [<c059bd09>] hiddev_ioctl+0x327/0x88a
>  [<c04802c8>] do_ioctl+0x4c/0x62
>  [<c0480528>] vfs_ioctl+0x24a/0x25c
>  [<c0480586>] sys_ioctl+0x4c/0x66
>  [<c040404b>] syscall_call+0x7/0xb
>  [<005b5402>] 0x5b5402
>  =======================

(added Marcel to CC)

This means that something (I guess that it's hid2hci command?) is trying 
to pass through hiddev a value in a field that is greater than a given 
bitmask (and is not going to fit into the bitfield).

Vincent, does the problem go away when you don't use bluetooth (both 
keyboard and mouse is switched to HID mode, if they support it)?

Marcel, do you have any idea how this could happen?

Thanks,

-- 
Jiri Kosina
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