<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/usb/core, branch v3.2.15</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>USB: Set hub depth after USB3 hub reset</title>
<updated>2012-03-01T00:31:08+00:00</updated>
<author>
<name>Elric Fu</name>
<email>elricfu1@gmail.com</email>
</author>
<published>2012-02-18T05:32:27+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=1a624979096199f383fc7785a509d1e38b608986'/>
<id>1a624979096199f383fc7785a509d1e38b608986</id>
<content type='text'>
commit a45aa3b30583e7d54e7cf4fbcd0aa699348a6e5c upstream.

The superspeed device attached to a USB 3.0 hub(such as VIA's)
doesn't respond the address device command after resume. The
root cause is the superspeed hub will miss the Hub Depth value
that is used as an offset into the route string to locate the
bits it uses to determine the downstream port number after
reset, and all packets can't be routed to the device attached
to the superspeed hub.

Hub driver sends a Set Hub Depth request to the superspeed hub
except for USB 3.0 root hub when the hub is initialized and
doesn't send the request again after reset due to the resume
process. So moving the code that sends the Set Hub Depth request
to the superspeed hub from hub_configure() to hub_activate()
is to cover those situations include initialization and reset.

The patch should be backported to kernels as old as 2.6.39.

Signed-off-by: Elric Fu &lt;elricfu1@gmail.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit a45aa3b30583e7d54e7cf4fbcd0aa699348a6e5c upstream.

The superspeed device attached to a USB 3.0 hub(such as VIA's)
doesn't respond the address device command after resume. The
root cause is the superspeed hub will miss the Hub Depth value
that is used as an offset into the route string to locate the
bits it uses to determine the downstream port number after
reset, and all packets can't be routed to the device attached
to the superspeed hub.

Hub driver sends a Set Hub Depth request to the superspeed hub
except for USB 3.0 root hub when the hub is initialized and
doesn't send the request again after reset due to the resume
process. So moving the code that sends the Set Hub Depth request
to the superspeed hub from hub_configure() to hub_activate()
is to cover those situations include initialization and reset.

The patch should be backported to kernels as old as 2.6.39.

Signed-off-by: Elric Fu &lt;elricfu1@gmail.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>USB: Don't fail USB3 probe on missing legacy PCI IRQ.</title>
<updated>2012-03-01T00:31:08+00:00</updated>
<author>
<name>Sarah Sharp</name>
<email>sarah.a.sharp@linux.intel.com</email>
</author>
<published>2012-02-14T00:25:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4d5845033ef313d6d1008ac5dafe69dbab23cc11'/>
<id>4d5845033ef313d6d1008ac5dafe69dbab23cc11</id>
<content type='text'>
commit 68d07f64b8a11a852d48d1b05b724c3e20c0d94b upstream.

Intel has a PCI USB xhci host controller on a new platform. It doesn't
have a line IRQ definition in BIOS.  The Linux driver refuses to
initialize this controller, but Windows works well because it only depends
on MSI.

Actually, Linux also can work for MSI.  This patch avoids the line IRQ
checking for USB3 HCDs in usb core PCI probe.  It allows the xHCI driver
to try to enable MSI or MSI-X first.  It will fail the probe if MSI
enabling failed and there's no legacy PCI IRQ.

This patch should be backported to kernels as old as 2.6.32.

Signed-off-by: Alex Shi &lt;alex.shi@intel.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 68d07f64b8a11a852d48d1b05b724c3e20c0d94b upstream.

Intel has a PCI USB xhci host controller on a new platform. It doesn't
have a line IRQ definition in BIOS.  The Linux driver refuses to
initialize this controller, but Windows works well because it only depends
on MSI.

Actually, Linux also can work for MSI.  This patch avoids the line IRQ
checking for USB3 HCDs in usb core PCI probe.  It allows the xHCI driver
to try to enable MSI or MSI-X first.  It will fail the probe if MSI
enabling failed and there's no legacy PCI IRQ.

This patch should be backported to kernels as old as 2.6.32.

Signed-off-by: Alex Shi &lt;alex.shi@intel.com&gt;
Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>usb: fix number of mapped SG DMA entries</title>
<updated>2012-01-12T19:29:43+00:00</updated>
<author>
<name>Clemens Ladisch</name>
<email>clemens@ladisch.de</email>
</author>
<published>2011-12-03T22:41:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4781ace0ddff8057f2c1bf1811ae4886f8b88876'/>
<id>4781ace0ddff8057f2c1bf1811ae4886f8b88876</id>
<content type='text'>
commit bc677d5b64644c399cd3db6a905453e611f402ab upstream.

Add a new field num_mapped_sgs to struct urb so that we have a place to
store the number of mapped entries and can also retain the original
value of entries in num_sgs.  Previously, usb_hcd_map_urb_for_dma()
would overwrite this with the number of mapped entries, which would
break dma_unmap_sg() because it requires the original number of entries.

This fixes warnings like the following when using USB storage devices:
 ------------[ cut here ]------------
 WARNING: at lib/dma-debug.c:902 check_unmap+0x4e4/0x695()
 ehci_hcd 0000:00:12.2: DMA-API: device driver frees DMA sg list with different entry count [map count=4] [unmap count=1]
 Modules linked in: ohci_hcd ehci_hcd
 Pid: 0, comm: kworker/0:1 Not tainted 3.2.0-rc2+ #319
 Call Trace:
  &lt;IRQ&gt;  [&lt;ffffffff81036d3b&gt;] warn_slowpath_common+0x80/0x98
  [&lt;ffffffff81036de7&gt;] warn_slowpath_fmt+0x41/0x43
  [&lt;ffffffff811fa5ae&gt;] check_unmap+0x4e4/0x695
  [&lt;ffffffff8105e92c&gt;] ? trace_hardirqs_off+0xd/0xf
  [&lt;ffffffff8147208b&gt;] ? _raw_spin_unlock_irqrestore+0x33/0x50
  [&lt;ffffffff811fa84a&gt;] debug_dma_unmap_sg+0xeb/0x117
  [&lt;ffffffff8137b02f&gt;] usb_hcd_unmap_urb_for_dma+0x71/0x188
  [&lt;ffffffff8137b166&gt;] unmap_urb_for_dma+0x20/0x22
  [&lt;ffffffff8137b1c5&gt;] usb_hcd_giveback_urb+0x5d/0xc0
  [&lt;ffffffffa0000d02&gt;] ehci_urb_done+0xf7/0x10c [ehci_hcd]
  [&lt;ffffffffa0001140&gt;] qh_completions+0x429/0x4bd [ehci_hcd]
  [&lt;ffffffffa000340a&gt;] ehci_work+0x95/0x9c0 [ehci_hcd]
  ...
 ---[ end trace f29ac88a5a48c580 ]---
 Mapped at:
  [&lt;ffffffff811faac4&gt;] debug_dma_map_sg+0x45/0x139
  [&lt;ffffffff8137bc0b&gt;] usb_hcd_map_urb_for_dma+0x22e/0x478
  [&lt;ffffffff8137c494&gt;] usb_hcd_submit_urb+0x63f/0x6fa
  [&lt;ffffffff8137d01c&gt;] usb_submit_urb+0x2c7/0x2de
  [&lt;ffffffff8137dcd4&gt;] usb_sg_wait+0x55/0x161

Signed-off-by: Clemens Ladisch &lt;clemens@ladisch.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit bc677d5b64644c399cd3db6a905453e611f402ab upstream.

Add a new field num_mapped_sgs to struct urb so that we have a place to
store the number of mapped entries and can also retain the original
value of entries in num_sgs.  Previously, usb_hcd_map_urb_for_dma()
would overwrite this with the number of mapped entries, which would
break dma_unmap_sg() because it requires the original number of entries.

This fixes warnings like the following when using USB storage devices:
 ------------[ cut here ]------------
 WARNING: at lib/dma-debug.c:902 check_unmap+0x4e4/0x695()
 ehci_hcd 0000:00:12.2: DMA-API: device driver frees DMA sg list with different entry count [map count=4] [unmap count=1]
 Modules linked in: ohci_hcd ehci_hcd
 Pid: 0, comm: kworker/0:1 Not tainted 3.2.0-rc2+ #319
 Call Trace:
  &lt;IRQ&gt;  [&lt;ffffffff81036d3b&gt;] warn_slowpath_common+0x80/0x98
  [&lt;ffffffff81036de7&gt;] warn_slowpath_fmt+0x41/0x43
  [&lt;ffffffff811fa5ae&gt;] check_unmap+0x4e4/0x695
  [&lt;ffffffff8105e92c&gt;] ? trace_hardirqs_off+0xd/0xf
  [&lt;ffffffff8147208b&gt;] ? _raw_spin_unlock_irqrestore+0x33/0x50
  [&lt;ffffffff811fa84a&gt;] debug_dma_unmap_sg+0xeb/0x117
  [&lt;ffffffff8137b02f&gt;] usb_hcd_unmap_urb_for_dma+0x71/0x188
  [&lt;ffffffff8137b166&gt;] unmap_urb_for_dma+0x20/0x22
  [&lt;ffffffff8137b1c5&gt;] usb_hcd_giveback_urb+0x5d/0xc0
  [&lt;ffffffffa0000d02&gt;] ehci_urb_done+0xf7/0x10c [ehci_hcd]
  [&lt;ffffffffa0001140&gt;] qh_completions+0x429/0x4bd [ehci_hcd]
  [&lt;ffffffffa000340a&gt;] ehci_work+0x95/0x9c0 [ehci_hcd]
  ...
 ---[ end trace f29ac88a5a48c580 ]---
 Mapped at:
  [&lt;ffffffff811faac4&gt;] debug_dma_map_sg+0x45/0x139
  [&lt;ffffffff8137bc0b&gt;] usb_hcd_map_urb_for_dma+0x22e/0x478
  [&lt;ffffffff8137c494&gt;] usb_hcd_submit_urb+0x63f/0x6fa
  [&lt;ffffffff8137d01c&gt;] usb_submit_urb+0x2c7/0x2de
  [&lt;ffffffff8137dcd4&gt;] usb_sg_wait+0x55/0x161

Signed-off-by: Clemens Ladisch &lt;clemens@ladisch.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>USB: add quirk for another camera</title>
<updated>2012-01-12T19:29:40+00:00</updated>
<author>
<name>Oliver Neukum</name>
<email>oliver@neukum.org</email>
</author>
<published>2012-01-03T08:58:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=dd857f5b4dc1d8d010da1711b71be789054fbcbe'/>
<id>dd857f5b4dc1d8d010da1711b71be789054fbcbe</id>
<content type='text'>
commit 35284b3d2f68a8a3703745e629999469f78386b5 upstream.

The Guillemot Webcam Hercules Dualpix Exchange camera
has been reported with a second ID.

Signed-off-by: Oliver Neukum &lt;oneukum@suse.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 35284b3d2f68a8a3703745e629999469f78386b5 upstream.

The Guillemot Webcam Hercules Dualpix Exchange camera
has been reported with a second ID.

Signed-off-by: Oliver Neukum &lt;oneukum@suse.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>usbfs: Fix oops related to user namespace conversion.</title>
<updated>2012-01-12T19:29:34+00:00</updated>
<author>
<name>Sarah Sharp</name>
<email>sarah.a.sharp@linux.intel.com</email>
</author>
<published>2011-12-16T19:26:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=7f35a6941c20af66dde1148b491e2f501192179b'/>
<id>7f35a6941c20af66dde1148b491e2f501192179b</id>
<content type='text'>
commit 1b41c8321e495337e877ca02d0b9680bc4112eff upstream.

When running the Point Grey "flycap" program for their USB 3.0 camera
(which was running as a USB 2.0 device for some reason), I trigger this
oops whenever I try to open a video stream:

Dec 15 16:48:34 puck kernel: [ 1798.715559] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec 15 16:48:34 puck kernel: [ 1798.719153] IP: [&lt;ffffffff8147841e&gt;] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.720991] PGD 6f833067 PUD 6fc56067 PMD 0
Dec 15 16:48:34 puck kernel: [ 1798.722815] Oops: 0002 [#1] SMP
Dec 15 16:48:34 puck kernel: [ 1798.724627] CPU 0
Dec 15 16:48:34 puck kernel: [ 1798.724636] Modules linked in: ecryptfs encrypted_keys sha1_generic trusted binfmt_misc sha256_generic aesni_intel cryptd aes_x86_64 aes_generic parport_pc dm_crypt ppdev joydev snd_hda_codec_hdmi snd_hda_codec_conexant arc4 iwlwifi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi mac80211 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer btusb uvcvideo snd_seq_device bluetooth videodev psmouse snd v4l2_compat_ioctl32 serio_raw tpm_tis cfg80211 tpm tpm_bios nvram soundcore snd_page_alloc lp parport i915 xhci_hcd ahci libahci drm_kms_helper drm sdhci_pci sdhci e1000e i2c_algo_bit video
Dec 15 16:48:34 puck kernel: [ 1798.734212]
Dec 15 16:48:34 puck kernel: [ 1798.736162] Pid: 2713, comm: FlyCap2 Not tainted 3.2.0-rc5+ #28 LENOVO 4286CTO/4286CTO
Dec 15 16:48:34 puck kernel: [ 1798.738148] RIP: 0010:[&lt;ffffffff8147841e&gt;]  [&lt;ffffffff8147841e&gt;] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.740134] RSP: 0018:ffff88005715fd78  EFLAGS: 00010296
Dec 15 16:48:34 puck kernel: [ 1798.742118] RAX: 00000000fffffff4 RBX: ffff88006fe8f900 RCX: 0000000000004118
Dec 15 16:48:34 puck kernel: [ 1798.744116] RDX: 0000000001000000 RSI: 0000000000016390 RDI: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.746087] RBP: ffff88005715fd88 R08: 0000000000000000 R09: ffffffff8146f22e
Dec 15 16:48:34 puck kernel: [ 1798.748018] R10: ffff88006e520ac0 R11: 0000000000000001 R12: ffff88005715fe28
Dec 15 16:48:34 puck kernel: [ 1798.749916] R13: ffff88005d31df00 R14: ffff88006fe8f900 R15: 00007f688c995cb8
Dec 15 16:48:34 puck kernel: [ 1798.751785] FS:  00007f68a366da40(0000) GS:ffff880100200000(0000) knlGS:0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.753659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 15 16:48:34 puck kernel: [ 1798.755509] CR2: 0000000000000000 CR3: 00000000706bb000 CR4: 00000000000406f0
Dec 15 16:48:34 puck kernel: [ 1798.757334] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.759124] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Dec 15 16:48:34 puck kernel: [ 1798.760871] Process FlyCap2 (pid: 2713, threadinfo ffff88005715e000, task ffff88006c675b80)
Dec 15 16:48:34 puck kernel: [ 1798.762605] Stack:
Dec 15 16:48:34 puck kernel: [ 1798.764297]  ffff88005715fe28 0000000000000000 ffff88005715fe08 ffffffff81479058
Dec 15 16:48:34 puck kernel: [ 1798.766020]  0000000000000000 ffffea0000004000 ffff880000004118 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.767750]  ffff880000000001 ffff88006e520ac0 fffffff46fd81180 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.769472] Call Trace:
Dec 15 16:48:34 puck kernel: [ 1798.771147]  [&lt;ffffffff81479058&gt;] proc_do_submiturb+0x778/0xa00
Dec 15 16:48:34 puck kernel: [ 1798.772798]  [&lt;ffffffff8147a5fd&gt;] usbdev_do_ioctl+0x24d/0x1200
Dec 15 16:48:34 puck kernel: [ 1798.774410]  [&lt;ffffffff8147b5de&gt;] usbdev_ioctl+0xe/0x20
Dec 15 16:48:34 puck kernel: [ 1798.775975]  [&lt;ffffffff81189259&gt;] do_vfs_ioctl+0x99/0x600
Dec 15 16:48:34 puck kernel: [ 1798.777534]  [&lt;ffffffff81189851&gt;] sys_ioctl+0x91/0xa0
Dec 15 16:48:34 puck kernel: [ 1798.779088]  [&lt;ffffffff816247c2&gt;] system_call_fastpath+0x16/0x1b
ec 15 16:48:34 puck kernel: [ 1798.780634] Code: 51 ff ff ff e9 29 ff ff ff 0f 1f 40 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 89 fb 48 8b 7f 18 e8 a6 ea c0 ff 4
8 8b 7b 20 &lt;f0&gt; ff 0f 0f 94 c0 84 c0 74 05 e8 d3 99 c1 ff 48 8b 43 40 48 8b
Dec 15 16:48:34 puck kernel: [ 1798.783970] RIP  [&lt;ffffffff8147841e&gt;] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.785630]  RSP &lt;ffff88005715fd78&gt;
Dec 15 16:48:34 puck kernel: [ 1798.787274] CR2: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.794728] ---[ end trace 52894d3355f88d19 ]---

markup_oops.pl says the oops is in put_cred:

 ffffffff81478401:      48 89 e5                mov    %rsp,%rbp
 ffffffff81478404:      53                      push   %rbx
 ffffffff81478405:      48 83 ec 08             sub    $0x8,%rsp
 ffffffff81478409:      e8 f2 c0 1a 00          callq  ffffffff81624500 &lt;mcount&gt;
 ffffffff8147840e:      48 89 fb                mov    %rdi,%rbx   |  %ebx =&gt; ffff88006fe8f900
        put_pid(as-&gt;pid);
 ffffffff81478411:      48 8b 7f 18             mov    0x18(%rdi),%rdi
 ffffffff81478415:      e8 a6 ea c0 ff          callq  ffffffff81086ec0 &lt;put_pid&gt;
        put_cred(as-&gt;cred);
 ffffffff8147841a:      48 8b 7b 20             mov    0x20(%rbx),%rdi |  %edi =&gt; 0  %ebx = ffff88006fe8f900
  */
 static inline int atomic_dec_and_test(atomic_t *v)
 {
        unsigned char c;

        asm volatile(LOCK_PREFIX "decl %0; sete %1"
*ffffffff8147841e:      f0 ff 0f                lock decl (%rdi)   |  %edi = 0 &lt;--- faulting instruction
 ffffffff81478421:      0f 94 c0                sete   %al
 static inline void put_cred(const struct cred *_cred)
 {
        struct cred *cred = (struct cred *) _cred;

        validate_creds(cred);
        if (atomic_dec_and_test(&amp;(cred)-&gt;usage))
 ffffffff81478424:      84 c0                   test   %al,%al
 ffffffff81478426:      74 05                   je     ffffffff8147842d &lt;free_async+0x2d&gt;
                __put_cred(cred);
 ffffffff81478428:      e8 d3 99 c1 ff          callq  ffffffff81091e00 &lt;__put_cred&gt;
        kfree(as-&gt;urb-&gt;transfer_buffer);
 ffffffff8147842d:      48 8b 43 40             mov    0x40(%rbx),%rax
 ffffffff81478431:      48 8b 78 68             mov    0x68(%rax),%rdi
 ffffffff81478435:      e8 a6 e1 ce ff          callq  ffffffff811665e0 &lt;kfree&gt;
        kfree(as-&gt;urb-&gt;setup_packet);
 ffffffff8147843a:      48 8b 43 40             mov    0x40(%rbx),%rax
 ffffffff8147843e:      48 8b b8 90 00 00 00    mov    0x90(%rax),%rdi
 ffffffff81478445:      e8 96 e1 ce ff          callq  ffffffff811665e0 &lt;kfree&gt;
        usb_free_urb(as-&gt;urb);
 ffffffff8147844a:      48 8b 7b 40             mov    0x40(%rbx),%rdi
 ffffffff8147844e:      e8 0d 6b ff ff          callq  ffffffff8146ef60 &lt;usb_free_urb&gt;

This bug seems to have been introduced by commit
d178bc3a708f39cbfefc3fab37032d3f2511b4ec "user namespace: usb: make usb
urbs user namespace aware (v2)"

I'm not sure if this is right fix, but it does stop the oops.

Unfortunately, the Point Grey software still refuses to work, but it's a
closed source app, so I can't fix it.

Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Acked-by: Serge Hallyn &lt;serge.hallyn@canonical.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 1b41c8321e495337e877ca02d0b9680bc4112eff upstream.

When running the Point Grey "flycap" program for their USB 3.0 camera
(which was running as a USB 2.0 device for some reason), I trigger this
oops whenever I try to open a video stream:

Dec 15 16:48:34 puck kernel: [ 1798.715559] BUG: unable to handle kernel NULL pointer dereference at           (null)
Dec 15 16:48:34 puck kernel: [ 1798.719153] IP: [&lt;ffffffff8147841e&gt;] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.720991] PGD 6f833067 PUD 6fc56067 PMD 0
Dec 15 16:48:34 puck kernel: [ 1798.722815] Oops: 0002 [#1] SMP
Dec 15 16:48:34 puck kernel: [ 1798.724627] CPU 0
Dec 15 16:48:34 puck kernel: [ 1798.724636] Modules linked in: ecryptfs encrypted_keys sha1_generic trusted binfmt_misc sha256_generic aesni_intel cryptd aes_x86_64 aes_generic parport_pc dm_crypt ppdev joydev snd_hda_codec_hdmi snd_hda_codec_conexant arc4 iwlwifi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi mac80211 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer btusb uvcvideo snd_seq_device bluetooth videodev psmouse snd v4l2_compat_ioctl32 serio_raw tpm_tis cfg80211 tpm tpm_bios nvram soundcore snd_page_alloc lp parport i915 xhci_hcd ahci libahci drm_kms_helper drm sdhci_pci sdhci e1000e i2c_algo_bit video
Dec 15 16:48:34 puck kernel: [ 1798.734212]
Dec 15 16:48:34 puck kernel: [ 1798.736162] Pid: 2713, comm: FlyCap2 Not tainted 3.2.0-rc5+ #28 LENOVO 4286CTO/4286CTO
Dec 15 16:48:34 puck kernel: [ 1798.738148] RIP: 0010:[&lt;ffffffff8147841e&gt;]  [&lt;ffffffff8147841e&gt;] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.740134] RSP: 0018:ffff88005715fd78  EFLAGS: 00010296
Dec 15 16:48:34 puck kernel: [ 1798.742118] RAX: 00000000fffffff4 RBX: ffff88006fe8f900 RCX: 0000000000004118
Dec 15 16:48:34 puck kernel: [ 1798.744116] RDX: 0000000001000000 RSI: 0000000000016390 RDI: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.746087] RBP: ffff88005715fd88 R08: 0000000000000000 R09: ffffffff8146f22e
Dec 15 16:48:34 puck kernel: [ 1798.748018] R10: ffff88006e520ac0 R11: 0000000000000001 R12: ffff88005715fe28
Dec 15 16:48:34 puck kernel: [ 1798.749916] R13: ffff88005d31df00 R14: ffff88006fe8f900 R15: 00007f688c995cb8
Dec 15 16:48:34 puck kernel: [ 1798.751785] FS:  00007f68a366da40(0000) GS:ffff880100200000(0000) knlGS:0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.753659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 15 16:48:34 puck kernel: [ 1798.755509] CR2: 0000000000000000 CR3: 00000000706bb000 CR4: 00000000000406f0
Dec 15 16:48:34 puck kernel: [ 1798.757334] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.759124] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Dec 15 16:48:34 puck kernel: [ 1798.760871] Process FlyCap2 (pid: 2713, threadinfo ffff88005715e000, task ffff88006c675b80)
Dec 15 16:48:34 puck kernel: [ 1798.762605] Stack:
Dec 15 16:48:34 puck kernel: [ 1798.764297]  ffff88005715fe28 0000000000000000 ffff88005715fe08 ffffffff81479058
Dec 15 16:48:34 puck kernel: [ 1798.766020]  0000000000000000 ffffea0000004000 ffff880000004118 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.767750]  ffff880000000001 ffff88006e520ac0 fffffff46fd81180 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.769472] Call Trace:
Dec 15 16:48:34 puck kernel: [ 1798.771147]  [&lt;ffffffff81479058&gt;] proc_do_submiturb+0x778/0xa00
Dec 15 16:48:34 puck kernel: [ 1798.772798]  [&lt;ffffffff8147a5fd&gt;] usbdev_do_ioctl+0x24d/0x1200
Dec 15 16:48:34 puck kernel: [ 1798.774410]  [&lt;ffffffff8147b5de&gt;] usbdev_ioctl+0xe/0x20
Dec 15 16:48:34 puck kernel: [ 1798.775975]  [&lt;ffffffff81189259&gt;] do_vfs_ioctl+0x99/0x600
Dec 15 16:48:34 puck kernel: [ 1798.777534]  [&lt;ffffffff81189851&gt;] sys_ioctl+0x91/0xa0
Dec 15 16:48:34 puck kernel: [ 1798.779088]  [&lt;ffffffff816247c2&gt;] system_call_fastpath+0x16/0x1b
ec 15 16:48:34 puck kernel: [ 1798.780634] Code: 51 ff ff ff e9 29 ff ff ff 0f 1f 40 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 89 fb 48 8b 7f 18 e8 a6 ea c0 ff 4
8 8b 7b 20 &lt;f0&gt; ff 0f 0f 94 c0 84 c0 74 05 e8 d3 99 c1 ff 48 8b 43 40 48 8b
Dec 15 16:48:34 puck kernel: [ 1798.783970] RIP  [&lt;ffffffff8147841e&gt;] free_async+0x1e/0x70
Dec 15 16:48:34 puck kernel: [ 1798.785630]  RSP &lt;ffff88005715fd78&gt;
Dec 15 16:48:34 puck kernel: [ 1798.787274] CR2: 0000000000000000
Dec 15 16:48:34 puck kernel: [ 1798.794728] ---[ end trace 52894d3355f88d19 ]---

markup_oops.pl says the oops is in put_cred:

 ffffffff81478401:      48 89 e5                mov    %rsp,%rbp
 ffffffff81478404:      53                      push   %rbx
 ffffffff81478405:      48 83 ec 08             sub    $0x8,%rsp
 ffffffff81478409:      e8 f2 c0 1a 00          callq  ffffffff81624500 &lt;mcount&gt;
 ffffffff8147840e:      48 89 fb                mov    %rdi,%rbx   |  %ebx =&gt; ffff88006fe8f900
        put_pid(as-&gt;pid);
 ffffffff81478411:      48 8b 7f 18             mov    0x18(%rdi),%rdi
 ffffffff81478415:      e8 a6 ea c0 ff          callq  ffffffff81086ec0 &lt;put_pid&gt;
        put_cred(as-&gt;cred);
 ffffffff8147841a:      48 8b 7b 20             mov    0x20(%rbx),%rdi |  %edi =&gt; 0  %ebx = ffff88006fe8f900
  */
 static inline int atomic_dec_and_test(atomic_t *v)
 {
        unsigned char c;

        asm volatile(LOCK_PREFIX "decl %0; sete %1"
*ffffffff8147841e:      f0 ff 0f                lock decl (%rdi)   |  %edi = 0 &lt;--- faulting instruction
 ffffffff81478421:      0f 94 c0                sete   %al
 static inline void put_cred(const struct cred *_cred)
 {
        struct cred *cred = (struct cred *) _cred;

        validate_creds(cred);
        if (atomic_dec_and_test(&amp;(cred)-&gt;usage))
 ffffffff81478424:      84 c0                   test   %al,%al
 ffffffff81478426:      74 05                   je     ffffffff8147842d &lt;free_async+0x2d&gt;
                __put_cred(cred);
 ffffffff81478428:      e8 d3 99 c1 ff          callq  ffffffff81091e00 &lt;__put_cred&gt;
        kfree(as-&gt;urb-&gt;transfer_buffer);
 ffffffff8147842d:      48 8b 43 40             mov    0x40(%rbx),%rax
 ffffffff81478431:      48 8b 78 68             mov    0x68(%rax),%rdi
 ffffffff81478435:      e8 a6 e1 ce ff          callq  ffffffff811665e0 &lt;kfree&gt;
        kfree(as-&gt;urb-&gt;setup_packet);
 ffffffff8147843a:      48 8b 43 40             mov    0x40(%rbx),%rax
 ffffffff8147843e:      48 8b b8 90 00 00 00    mov    0x90(%rax),%rdi
 ffffffff81478445:      e8 96 e1 ce ff          callq  ffffffff811665e0 &lt;kfree&gt;
        usb_free_urb(as-&gt;urb);
 ffffffff8147844a:      48 8b 7b 40             mov    0x40(%rbx),%rdi
 ffffffff8147844e:      e8 0d 6b ff ff          callq  ffffffff8146ef60 &lt;usb_free_urb&gt;

This bug seems to have been introduced by commit
d178bc3a708f39cbfefc3fab37032d3f2511b4ec "user namespace: usb: make usb
urbs user namespace aware (v2)"

I'm not sure if this is right fix, but it does stop the oops.

Unfortunately, the Point Grey software still refuses to work, but it's a
closed source app, so I can't fix it.

Signed-off-by: Sarah Sharp &lt;sarah.a.sharp@linux.intel.com&gt;
Acked-by: Serge Hallyn &lt;serge.hallyn@canonical.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>USB: quirks: adding more quirky webcams to avoid squeaky audio</title>
<updated>2011-11-15T00:39:17+00:00</updated>
<author>
<name>sordna</name>
<email>sordna@gmail.com</email>
</author>
<published>2011-10-28T04:06:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=0d145d7d4a241c321c832a810bb6edad18e2217b'/>
<id>0d145d7d4a241c321c832a810bb6edad18e2217b</id>
<content type='text'>
The following patch contains additional affected webcam models, on top of the
patches commited to linux-next 2394d67e446bf616a0885167d5f0d397bdacfdfc
and 5b253d88cc6c65a23cefc457a5a4ef139913c5fc

Signed-off-by: sordna &lt;sordna@gmail.com&gt;
Cc: Oliver Neukum &lt;oliver@neukum.org&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The following patch contains additional affected webcam models, on top of the
patches commited to linux-next 2394d67e446bf616a0885167d5f0d397bdacfdfc
and 5b253d88cc6c65a23cefc457a5a4ef139913c5fc

Signed-off-by: sordna &lt;sordna@gmail.com&gt;
Cc: Oliver Neukum &lt;oliver@neukum.org&gt;
Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: add quirk for Logitech C600 web cam</title>
<updated>2011-11-14T21:47:48+00:00</updated>
<author>
<name>Josh Boyer</name>
<email>jwboyer@redhat.com</email>
</author>
<published>2011-10-26T17:53:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=60c71ca972a2dd3fd9d0165b405361c8ad48349b'/>
<id>60c71ca972a2dd3fd9d0165b405361c8ad48349b</id>
<content type='text'>
We've had another report of the "chipmunk" sound on a Logitech C600 webcam.
This patch resolves the issue.

Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Josh Boyer &lt;jwboyer@redhat.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We've had another report of the "chipmunk" sound on a Logitech C600 webcam.
This patch resolves the issue.

Cc: stable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Josh Boyer &lt;jwboyer@redhat.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-usb-linus' of git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus</title>
<updated>2011-11-14T19:30:52+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@suse.de</email>
</author>
<published>2011-11-14T19:30:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=47c6a04bf58163fe2a429617ae6b1a93ba363723'/>
<id>47c6a04bf58163fe2a429617ae6b1a93ba363723</id>
<content type='text'>
* 'for-usb-linus' of ra.kernel.org:/pub/scm/linux/kernel/git/sarah/xhci:
  usb, xhci: Clear warm reset change event during init
  xhci: Set slot and ep0 flags for address command.
  usb, xhci: fix lockdep warning on endpoint timeout
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'for-usb-linus' of ra.kernel.org:/pub/scm/linux/kernel/git/sarah/xhci:
  usb, xhci: Clear warm reset change event during init
  xhci: Set slot and ep0 flags for address command.
  usb, xhci: fix lockdep warning on endpoint timeout
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux</title>
<updated>2011-11-07T03:44:47+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2011-11-07T03:44:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=32aaeffbd4a7457bf2f7448b33b5946ff2a960eb'/>
<id>32aaeffbd4a7457bf2f7448b33b5946ff2a960eb</id>
<content type='text'>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include &lt;linux/module.h&gt;
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include &lt;linux/module.h&gt;
  net: sch_generic remove redundant use of &lt;linux/module.h&gt;
  net: inet_timewait_sock doesnt need &lt;linux/module.h&gt;
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include &lt;linux/module.h&gt;
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include &lt;linux/module.h&gt;
  net: sch_generic remove redundant use of &lt;linux/module.h&gt;
  net: inet_timewait_sock doesnt need &lt;linux/module.h&gt;
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: Update last_busy time after autosuspend fails</title>
<updated>2011-11-04T21:28:14+00:00</updated>
<author>
<name>Alan Stern</name>
<email>stern@rowland.harvard.edu</email>
</author>
<published>2011-11-03T23:52:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b2c0a863e14676fa5760c6d828fd373288e2f64a'/>
<id>b2c0a863e14676fa5760c6d828fd373288e2f64a</id>
<content type='text'>
Originally, the runtime PM core would send an idle notification
whenever a suspend attempt failed.  The idle callback routine could
then schedule a delayed suspend for some time later.

However this behavior was changed by commit
f71648d73c1650b8b4aceb3856bebbde6daa3b86 (PM / Runtime: Remove idle
notification after failing suspend).  No notifications were sent, and
there was no clear mechanism to retry failed suspends.

This caused problems for the usbhid driver, because it fails
autosuspend attempts as long as a key is being held down.  A companion
patch changes the PM core's behavior, but we also need to change the
USB core.  In particular, this patch (as1493) updates the device's
last_busy time when an autosuspend fails, so that the PM core will
retry the autosuspend in the future when the delay time expires
again.

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Tested-by: Henrik Rydberg &lt;rydberg@euromail.se&gt;
Cc: &lt;stable@kernel.org&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Originally, the runtime PM core would send an idle notification
whenever a suspend attempt failed.  The idle callback routine could
then schedule a delayed suspend for some time later.

However this behavior was changed by commit
f71648d73c1650b8b4aceb3856bebbde6daa3b86 (PM / Runtime: Remove idle
notification after failing suspend).  No notifications were sent, and
there was no clear mechanism to retry failed suspends.

This caused problems for the usbhid driver, because it fails
autosuspend attempts as long as a key is being held down.  A companion
patch changes the PM core's behavior, but we also need to change the
USB core.  In particular, this patch (as1493) updates the device's
last_busy time when an autosuspend fails, so that the PM core will
retry the autosuspend in the future when the delay time expires
again.

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Tested-by: Henrik Rydberg &lt;rydberg@euromail.se&gt;
Cc: &lt;stable@kernel.org&gt;
Acked-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
</pre>
</div>
</content>
</entry>
</feed>
