Re: 2.6.18-rc1-mm2

Reuben Farrelly
2006-07-14T11:30:23Z

On 14/07/2006 5:48 p.m., Andrew Morton wrote:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc1/2.6.18-rc1-mm2/
>
> - Patches were merged, added, dropped and fixed. Nothing particularly exciting.
>
> - Added the avr32 architecture. Review is sought, please.

Another oops, USB related perhaps?

Fedora Core release 5.90 (Test)
Kernel 2.6.18-rc1-mm2 on an x86_64

tornado.reub.net login: Unable to handle kernel NULL pointer dereference at
0000000000000020 RIP:
[<ffffffff8029a9b1>] __lock_acquire+0x81/0xcbb
PGD 27153067 PUD 27152067 PMD 0
Oops: 0000 [1] SMP
last sysfs file: /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/usbdev2.4/dev
CPU 0
Modules linked in: hidp rfcomm l2cap bluetooth ipv6 ip_gre iptable_filter
iptable_nat ip_nat ip_conntrack nfnetlink iptable_mangle ip_tables binfmt_misc
iTCO_wdt i2c_i801 serio_raw
Pid: 104, comm: khubd Not tainted 2.6.18-rc1-mm2 #1
RIP: 0010:[<ffffffff8029a9b1>] [<ffffffff8029a9b1>] __lock_acquire+0x81/0xcbb
RSP: 0018:ffff81003f2ddc98 EFLAGS: 00010046
RAX: 0000000000000002 RBX: 0000000000000246 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff81003f2ddd08 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff80488338 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff805ac760 R14: ffff810037f96140 R15: 0000000000000018
FS: 0000000000000000(0000) GS:ffffffff808af000(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000020 CR3: 000000002725c000 CR4: 00000000000006e0
Process khubd (pid: 104, threadinfo ffff81003f2dc000, task ffff810037f96140)
Stack: ffffffff80263d05 0000000000000246 ffff81003ec0f4f0 ffff810012202370
000000003f2ddcd8 0000000000000002 0000000000000000 ffff81003ec0f4e8
ffff81003f2ddd08 0000000000000246 0000000000000000 ffffffff805ac760
Call Trace:
[<ffffffff8029b63a>] lock_acquire+0x4f/0x75
[<ffffffff802654fa>] _spin_lock+0x25/0x34
[<ffffffff80488338>] klist_remove+0x15/0x36
[<ffffffff803b63fe>] bus_remove_device+0xa7/0xc9
[<ffffffff803b4d4d>] device_del+0x162/0x195
[<ffffffff803f5b96>] usb_disconnect+0xbb/0x10e
[<ffffffff803f69df>] hub_thread+0x3ff/0xc36
[<ffffffff802332a3>] kthread+0xd3/0x100
[<ffffffff802602f2>] child_rip+0x8/0x12

Code: 49 8b 5f 08 48 85 db 0f 85 4e 03 00 00 49 83 3f 00 75 03 4d
RIP [<ffffffff8029a9b1>] __lock_acquire+0x81/0xcbb
RSP <ffff81003f2ddc98>
CR2: 0000000000000020

I didn't see this one but more than likely it happened when my 2 yr old hit the
KVM "change console" button (it's a USB KVM and there are no other USB devices
on the system).

Reuben