linux-kernel - Re: [BUG] object: is not initialized, yet kobject

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 12 Aug 2010 13:18:15 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc:	Heinz Diehl <htd@...tha.org>, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-input@...r.kernel.org,
	Alan Ott <alan@...nal11.us>
Subject: Re: [BUG] object: is not initialized, yet kobject_put() is being
 called

On Thu, 12 Aug 2010, Markus Trippelsdorf wrote:

> On Thu, Aug 12, 2010 at 11:11:50AM +0200, Jiri Kosina wrote:
> > 
> > Guys, could you please send me your .config with which you are 
> > experiencing the problem, so that I can try to reproduce it with it?
> 
> Attached.

So I had to add support for HW of mine (SATA_VIA, PATA_VIA, disabled the 
radeon firmware stuff, and, most importantly, enabled UHCI, which is what 
is on machine I am using now for testing), and disconnect-connect cycle 
works nicely:

usb 3-2: USB disconnect, address 3
usb 3-2: new low speed USB device using uhci_hcd and address 4
input: mouse USB mouse with wheel as /devices/pci0000:00/0000:00:10.1/usb3/3-2/3-2:1.0/input/input6
generic-usb 0003:05B8:3091.0004: input,hidraw0: USB HID v1.10 Mouse [mouse USB mouse with wheel] on usb-0000:00:10.1-2/input0
input: mouse USB mouse with wheel as /devices/pci0000:00/0000:00:10.1/usb3/3-2/3-2:1.1/input/input7
generic-usb 0003:05B8:3091.0005: input,hidraw1: USB HID v1.10 Keyboard [mouse USB mouse with wheel] on usb-0000:00:10.1-2/input1

so still no BUG from kobject refcounting, and the hidraw numbers are the 
same. The major difference seems to be that I am using UHCI and you have 
your HID devices connected through OHCI, is that correct?

Alan, does the system you are seeing this bug on also have HID devices 
connected through OHCI?

Thanks,

-- 
Jiri Kosina
SUSE Labs, Novell Inc.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/