From: Andrew Morton <akpm@osdl.org>
To: Warren Togami <warren@togami.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6-test3 compusa USB optical mouse
Date: Sun, 10 Aug 2003 21:52:05 -0700 [thread overview]
Message-ID: <20030810215205.1028d3de.akpm@osdl.org> (raw)
In-Reply-To: <1060565776.2888.3.camel@laptop>
Warren Togami <warren@togami.com> wrote:
>
> I normally use Logitech optical USB mice in Linux. I bought a "CompUSA
> Optical USB Notebook Mouse" for $14 and the following happens in dmesg
> in kernel-2.6.0-test3.
>
> Known bug? Should I Bugzilla this?
>
> hub 1-1:0: debounce: port 2: delay 100ms stable 4 status 0x301
> hub 1-1:0: new USB device on port 2, assigned address 8
> drivers/usb/core/message.c: selecting invalid configuration 0
> usb 1-1.2: failed to set device 8 default configuration (error=-22)
> hub 1-1:0: new USB device on port 2, assigned address 9
> drivers/usb/core/message.c: selecting invalid configuration 0
> usb 1-1.2: failed to set device 9 default configuration (error=-22)
You don't state whether the mouse actually works.
Assuming it doesn't, yes, please bugzilla it, or bug the folks at
linux-usb-devel@lists.sourceforge.net
> Debug: sleeping function called from invalid context at
> include/asm/uaccess.h:473
> Call Trace:
> [<c011ab9b>] __might_sleep+0x5b/0x80
> [<c010cc66>] save_v86_state+0x66/0x1f0
> [<c010d737>] handle_vm86_fault+0xa7/0x8c0
> [<c01519fb>] do_sync_write+0x8b/0xc0
> [<c01a1e15>] inode_has_perm+0x65/0xa0
> [<c010b820>] do_general_protection+0x0/0xa0
> [<c010aae5>] error_code+0x2d/0x38
> [<c010a93b>] syscall_call+0x7/0xb
This is probably due to userspace performing a system call while the CPU
has interrupts disabled. Privileged apps can do this - the X server and
hwclock are two examples.
Longer-term we probably need to remove the irqs_disabled() test from
__might_sleep().
next prev parent reply other threads:[~2003-08-11 4:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-11 1:53 2.6-test3 compusa USB optical mouse Warren Togami
2003-08-11 4:52 ` Andrew Morton [this message]
2003-08-11 6:31 ` Warren Togami
2003-08-11 6:32 ` Warren Togami
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