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Subject2.6.33 bugs (USBFS, Intel graphic)
From
* http://lkml.org/lkml/2010/2/19/192
.6.32-stable review patch. If anyone has any objections, please let us know.

------------------
From: Greg KH <greg@kroah.com>

commit d4a4683ca054ed9917dfc9e3ff0f7ecf74ad90d6 upstream.

We need to only copy the data received by the device to userspace, not
the whole kernel buffer, which can contain "stale" data.

Thanks to Marcus Meissner for pointing this out and testing the fix.

Reported-by: Marcus Meissner <meissner@suse.de>
Tested-by: Marcus Meissner <meissner@suse.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


this patch breaks isochronous USBFS support, please revert that patch!

http://sundtek.de/images/tvtime-bildfehler.jpg

with the patch reverted:
http://sundtek.de/images/tvtime-working.png

* Intel graphic flickers now

Markus

On Sat, Feb 27, 2010 at 2:43 AM, <werner@guyane.dyn-o-saur.com> wrote:
>
>
>
>
>
> =======================
> Feb 26 16:21:53 werner kernel: PERCPU: allocation failed, size=2048 align=8, failed to allocate new chunk
> Feb 26 16:21:53 werner kernel: Pid: 5308, comm: modprobe Tainted: G         C 2.6.33 #1
> Feb 26 16:21:53 werner kernel: Call Trace:
> Feb 26 16:21:53 werner kernel:  [<c1c682ca>] ? printk+0x14/0x16
> Feb 26 16:21:53 werner kernel:  [<c10bdfa3>] pcpu_alloc+0x6ba/0x73b
> Feb 26 16:21:53 werner kernel:  [<c10bb0be>] ? get_slab+0x8/0x50
> Feb 26 16:21:53 werner kernel:  [<c1b7283d>] ? neigh_parms_alloc+0x55/0xd1
> Feb 26 16:21:53 werner kernel:  [<c10be047>] __alloc_percpu+0xf/0x14
> Feb 26 16:21:53 werner kernel:  [<c1bb26cb>] snmp_mib_init+0x22/0x5a
> Feb 26 16:21:53 werner kernel:  [<feb505af>] ipv6_add_dev+0x191/0x30b [ipv6]
> Feb 26 16:21:53 werner kernel:  [<fd268000>] ? inet6_init+0x0/0x2a2 [ipv6]
> Feb 26 16:21:53 werner kernel:  [<fd2682ec>] addrconf_init+0x3b/0x11b [ipv6]
> Feb 26 16:21:53 werner kernel:  [<fd268195>] inet6_init+0x195/0x2a2 [ipv6]
> Feb 26 16:21:53 werner kernel:  [<c1001143>] do_one_initcall+0x51/0x13f
> Feb 26 16:21:53 werner kernel:  [<c1066570>] sys_init_module+0xac/0x1e0
> Feb 26 16:21:53 werner kernel:  [<c1c6acec>] syscall_call+0x7/0xb
> Feb 26 16:22:05 werner kdm_greet[5398]: Can't open default user face
> Feb 26 16:23:22 werner named[5935]: /etc/named.conf:3: option 'multiple-cnames' is obsolete
> Feb 26 16:23:22 werner kernel: PERCPU: allocation failed, size=2048 align=8, failed to allocate new chunk
> Feb 26 16:23:22 werner kernel: Pid: 5940, comm: modprobe Tainted: G         C 2.6.33 #1
> Feb 26 16:23:22 werner kernel: Call Trace:
> Feb 26 16:23:22 werner kernel:  [<c1c682ca>] ? printk+0x14/0x16
> Feb 26 16:23:22 werner kernel:  [<c10bdfa3>] pcpu_alloc+0x6ba/0x73b
> Feb 26 16:23:22 werner kernel:  [<c10bb0be>] ? get_slab+0x8/0x50
> Feb 26 16:23:22 werner kernel:  [<c1b7283d>] ? neigh_parms_alloc+0x55/0xd1
> Feb 26 16:23:22 werner kernel:  [<c10be047>] __alloc_percpu+0xf/0x14
> Feb 26 16:23:22 werner kernel:  [<c1bb26cb>] snmp_mib_init+0x22/0x5a
> Feb 26 16:23:22 werner kernel:  [<feb505af>] ipv6_add_dev+0x191/0x30b [ipv6]
> Feb 26 16:23:22 werner kernel:  [<f9195000>] ? inet6_init+0x0/0x2a2 [ipv6]
> Feb 26 16:23:22 werner kernel:  [<f91952ec>] addrconf_init+0x3b/0x11b [ipv6]
> Feb 26 16:23:22 werner kernel:  [<f9195195>] inet6_init+0x195/0x2a2 [ipv6]
> Feb 26 16:23:22 werner kernel:  [<c1001143>] do_one_initcall+0x51/0x13f
> Feb 26 16:23:22 werner kernel:  [<c1066570>] sys_init_module+0xac/0x1e0
> Feb 26 16:23:22 werner kernel:  [<c1c6acec>] syscall_call+0x7/0xb
>
> ================
> Feb 26 16:23:45 werner kernel: PERCPU: allocation failed, size=2048 align=8, failed to allocate new chunk
> Feb 26 16:23:45 werner kernel: Pid: 6065, comm: modprobe Tainted: G         C 2.6.33 #1
> Feb 26 16:23:45 werner kernel: Call Trace:
> Feb 26 16:23:45 werner kernel:  [<c1c682ca>] ? printk+0x14/0x16
> Feb 26 16:23:45 werner kernel:  [<c10bdfa3>] pcpu_alloc+0x6ba/0x73b
> Feb 26 16:23:45 werner kernel:  [<c10bb0be>] ? get_slab+0x8/0x50
> Feb 26 16:23:45 werner kernel:  [<c1b7283d>] ? neigh_parms_alloc+0x55/0xd1
> Feb 26 16:23:45 werner kernel:  [<c10be047>] __alloc_percpu+0xf/0x14
> Feb 26 16:23:45 werner kernel:  [<c1bb26cb>] snmp_mib_init+0x22/0x5a
> Feb 26 16:23:45 werner kernel:  [<fed1b5af>] ipv6_add_dev+0x191/0x30b [ipv6]
> Feb 26 16:23:45 werner kernel:  [<fd20a000>] ? inet6_init+0x0/0x2a2 [ipv6]
> Feb 26 16:23:45 werner kernel:  [<fd20a2ec>] addrconf_init+0x3b/0x11b [ipv6]
> Feb 26 16:23:45 werner kernel:  [<fd20a195>] inet6_init+0x195/0x2a2 [ipv6]
> Feb 26 16:23:45 werner kernel:  [<c1001143>] do_one_initcall+0x51/0x13f
> Feb 26 16:23:45 werner kernel:  [<c1066570>] sys_init_module+0xac/0x1e0
> Feb 26 16:23:45 werner kernel:  [<c1c6acec>] syscall_call+0x7/0xb
> Feb 26 16:23:45 werner kernel: BUG: unable to handle kernel paging request at feb748d4
> Feb 26 16:23:45 werner kernel: IP: [<c1b68700>] unregister_pernet_operations+0x21/0x93
> Feb 26 16:23:45 werner kernel: *pde = 36683067 *pte = 00000000
> Feb 26 16:23:45 werner kernel: Oops: 0002 [#1] PREEMPT SMP
> Feb 26 16:23:45 werner kernel: last sysfs file: /sys/devices/pci0000:00/0000:00:0d.0/boot_vga
> Feb 26 16:23:45 werner kernel: Modules linked in: ipv6(+) bnep rfcomm hidp l2cap bluetooth snd_usb_audio snd_usb_lib snd_rawmidi snd_seq_device rt2860sta(C) uvcvideo usbvideo lp snd_hda_codec_analog rtc_cmos rtc_core rtc_lib tpm_tis tpm rtl8187 tpm_bios mac80211 snd_hda_intel led_class snd_hda_codec k8temp hwmon snd_hwdep cfg80211 8139too snd_pcm rfkill snd_timer snd forcedeth soundcore snd_page_alloc i2c_nforce2
> Feb 26 16:23:45 werner kernel:
> Feb 26 16:23:45 werner kernel: Pid: 6065, comm: modprobe Tainted: G         C 2.6.33 #1 M2N-VM DH/System Product Name
> Feb 26 16:23:45 werner kernel: EIP: 0060:[<c1b68700>] EFLAGS: 00010246 CPU: 0
> Feb 26 16:23:45 werner kernel: EIP is at unregister_pernet_operations+0x21/0x93
> Feb 26 16:23:45 werner kernel: EAX: feb748d4 EBX: fed3f850 ECX: f29a3f58 EDX: fed3f8d4
> Feb 26 16:23:45 werner kernel: ESI: fed3f850 EDI: fd20a000 EBP: f29a3f6c ESP: f29a3f58
> Feb 26 16:23:45 werner kernel:  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
> Feb 26 16:23:45 werner kernel: Process modprobe (pid: 6065, ti=f29a2000 task=f296ef20 task.ti=f29a2000)
> Feb 26 16:23:45 werner kernel: Stack:
> Feb 26 16:23:45 werner kernel:  f29a3f58 f29a3f58 fed3f850 00000000 fd20a000 f29a3f78 c1b687c6 fffffff4
> Feb 26 16:23:45 werner kernel: <0> f29a3f84 fd20a257 fed41834 f29a3f9c c1001143 00000000 fed41834 00000000
> Feb 26 16:23:45 werner kernel: <0> 0805e188 f29a3fac c1066570 b7549008 0805e138 f29a2000 c1c6acec b7549008
> Feb 26 16:23:45 werner kernel: Call Trace:
> Feb 26 16:23:45 werner kernel:  [<fd20a000>] ? inet6_init+0x0/0x2a2 [ipv6]
> Feb 26 16:23:45 werner kernel:  [<c1b687c6>] ? unregister_pernet_subsys+0x1c/0x29
> Feb 26 16:23:45 werner kernel:  [<fd20a257>] ? inet6_init+0x257/0x2a2 [ipv6]
> Feb 26 16:23:45 werner kernel:  [<c1001143>] ? do_one_initcall+0x51/0x13f
> Feb 26 16:23:45 werner kernel:  [<c1066570>] ? sys_init_module+0xac/0x1e0
> Feb 26 16:23:45 werner kernel:  [<c1c6acec>] ? syscall_call+0x7/0xb
> Feb 26 16:23:45 werner kernel: Code: c2 75 e5 e8 78 0a 51 ff eb 97 55 89 e5 57 56 53 83 ec 08 e8 03 b2 49 ff 89 c6 8d 4d ec 89 4d ec 89 4d f0 8b 10 8b 40 04 89 42 04 <89> 10 c7 06 00 01 10 00 c7 46 04 00 02 20 00 a1 b8 b7 10 c2 8d
> Feb 26 16:23:45 werner kernel: EIP: [<c1b68700>] unregister_pernet_operations+0x21/0x93 SS:ESP 0068:f29a3f58
> Feb 26 16:23:45 werner kernel: CR2: 00000000feb748d4
> Feb 26 16:23:45 werner kernel: ---[ end trace dda352e53880a4df ]---
>
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