Message-ID: <3d8471ca0904301529s140339c5w4b39e83b31d4e9c0@mail.gmail.com>
Date:	Fri, 1 May 2009 00:29:56 +0200
From:	Guillaume Chazarain <guichaz@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>, oliver@...kum.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: What's in hid.git for 2.6.30

Hello,

On Thu, Mar 26, 2009 at 1:07 AM, Jiri Kosina <jkosina@...e.cz> wrote:
>      HID: autosuspend support for USB HID

Testing 2.6.30-rc4 this patch breaks the IR remote control on my
macbook pro (ubuntu 9.04 x86_64).
Pressing a button on the Apple A1156 triggers a kernel panic,
reverting that patch fixes it.

BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa018c432>] hid_check_keys_pressed+0x12/0x60 [hid]
PGD 0
Oops: 0000 [#1] PREEMPT SMP
last sysfs file: /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
CPU 1
Modules linked in: netconsole configfs af_packet rfcomm btusb sco
bridge stp llc bnep l2cap bluetooth container acpi_cpufreq
snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_oss snd_seq_midi_event
snd_seq snd_timer snd_seq_device applesmc snd uvcvideo led_class
soundcore video iTCO_wdt videodev appletouch hid_apple i2c_core
input_polldev evdev snd_page_alloc iTCO_vendor_support intel_agp
processor output battery button v4l1_compat v4l2_compat_ioctl32 ac
usbhid hid ext3 jbd mbcache sg sd_mod sr_mod cdrom pata_acpi ata_piix
libata scsi_mod sky2 ehci_hcd uhci_hcd usbcore thermal fan thermal_sys
fuse
Pid: 0, comm: swapper Not tainted 2.6.30-rc4-custom-gc #1 MacBookPro3,1
RIP: 0010:[<ffffffffa018c432>]  [<ffffffffa018c432>]
hid_check_keys_pressed+0x12/0x60 [hid]
RSP: 0018:ffff88000102dd18  EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff88007e8c5000 RCX: 0000000000000001
RDX: ffff880079950800 RSI: ffff8800371759f0 RDI: ffff880037174000
RBP: ffff88000102dd18 R08: ffff8800799c5918 R09: 0000000000000000
R10: 0000000000000004 R11: 00000000ffffff00 R12: 0000000000000000
R13: ffff88007e8c5000 R14: ffff88003757c000 R15: ffff880037174000
FS:  0000000000000000(0000) GS:ffff88000102a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 0, threadinfo ffff88007e890000, task ffff88007e884350)
Stack:
 ffff88000102dd58 ffffffffa019fb14 0000000000000086 ffff88007e8c5000
 ffff880036d8c800 0000000000000000 ffff88007a0ac800 ffff880036d8c978
 ffff88000102dd88 ffffffffa0038320 ffff88000102dd88 ffff880036d8ca00
Call Trace:
 <IRQ> <0> [<ffffffffa019fb14>] hid_irq_in+0x1f4/0x240 [usbhid]
 [<ffffffffa0038320>] usb_hcd_giveback_urb+0x60/0xe0 [usbcore]
 [<ffffffffa0067c6e>] uhci_giveback_urb+0xae/0x2f0 [uhci_hcd]
 [<ffffffffa00749b8>] ? timer_action+0x48/0x60 [ehci_hcd]
 [<ffffffffa00763a6>] ? ehci_work+0x886/0xac0 [ehci_hcd]
 [<ffffffffa0068354>] uhci_scan_schedule+0x354/0xab0 [uhci_hcd]
 [<ffffffffa006ad61>] uhci_irq+0x91/0x190 [uhci_hcd]
 [<ffffffffa0037c80>] usb_hcd_irq+0x40/0xb0 [usbcore]
 [<ffffffff8028ad34>] handle_IRQ_event+0xc4/0x260
 [<ffffffff8028cb9c>] handle_fasteoi_irq+0x7c/0xf0
 [<ffffffff8020e65f>] handle_irq+0x1f/0x30
 [<ffffffff8020dd5a>] do_IRQ+0x6a/0xf0
 [<ffffffff8020c913>] ret_from_intr+0x0/0xf
 <EOI> <0> [<ffffffffa01d7631>] ? acpi_idle_enter_bm+0x274/0x2a2 [processor]
 [<ffffffffa01d7627>] ? acpi_idle_enter_bm+0x26a/0x2a2 [processor]
 [<ffffffff80402ca5>] ? cpuidle_idle_call+0xa5/0x100
 [<ffffffff8020b11e>] ? cpu_idle+0x6e/0xe0
 [<ffffffff804921f6>] ? start_secondary+0x1bd/0x2a7
Code: b7 10 66 85 d2 75 ce 66 90 31 c0 eb 92 66 66 66 2e 0f 1f 84 00
00 00 00 00 55 48 8d b7 f0 19 00 00 48 8b 87 f0 19 00 00 48 89 e5 <48>
8b 08 48 39 f0 0f 18 09 74 2e 48 8b 50 18 31 c0 0f 1f 44 00
RIP  [<ffffffffa018c432>] hid_check_keys_pressed+0x12/0x60 [hid]
 RSP <ffff88000102dd18>
CR2: 0000000000000000
---[ end trace 4bd9a2f21c16185f ]---
Kernel panic - not syncing: Fatal exception in interrupt
Pid: 0, comm: swapper Tainted: G      D    2.6.30-rc4-custom-gc #1
Call Trace:
 <IRQ>  [<ffffffff80495019>] panic+0xaa/0x172
 [<ffffffff80498b04>] ? _spin_unlock_irqrestore+0x24/0x60
 [<ffffffff80244815>] ? release_console_sem+0x1e5/0x230
 [<ffffffff80244ae5>] ? console_unblank+0x75/0x90
 [<ffffffff80499dd4>] oops_end+0xd4/0xe0
 [<ffffffff802287f8>] no_context+0xe8/0x260
 [<ffffffff80228ac5>] __bad_area_nosemaphore+0x155/0x1f0
 [<ffffffff8023516e>] ? __wake_up+0x4e/0x70
 [<ffffffffa01a290c>] ? hiddev_send_event+0xec/0x100 [usbhid]
 [<ffffffff80228b6e>] bad_area_nosemaphore+0xe/0x10
 [<ffffffff8049b786>] do_page_fault+0x2f6/0x3b0
 [<ffffffff8049906f>] page_fault+0x1f/0x30
 [<ffffffffa018c432>] ? hid_check_keys_pressed+0x12/0x60 [hid]
 [<ffffffffa019fb14>] hid_irq_in+0x1f4/0x240 [usbhid]
 [<ffffffffa0038320>] usb_hcd_giveback_urb+0x60/0xe0 [usbcore]
 [<ffffffffa0067c6e>] uhci_giveback_urb+0xae/0x2f0 [uhci_hcd]
 [<ffffffffa00749b8>] ? timer_action+0x48/0x60 [ehci_hcd]
 [<ffffffffa00763a6>] ? ehci_work+0x886/0xac0 [ehci_hcd]
 [<ffffffffa0068354>] uhci_scan_schedule+0x354/0xab0 [uhci_hcd]
 [<ffffffffa006ad61>] uhci_irq+0x91/0x190 [uhci_hcd]
 [<ffffffffa0037c80>] usb_hcd_irq+0x40/0xb0 [usbcore]
 [<ffffffff8028ad34>] handle_IRQ_event+0xc4/0x260
 [<ffffffff8028cb9c>] handle_fasteoi_irq+0x7c/0xf0
 [<ffffffff8020e65f>] handle_irq+0x1f/0x30
 [<ffffffff8020dd5a>] do_IRQ+0x6a/0xf0
 [<ffffffff8020c913>] ret_from_intr+0x0/0xf
 <EOI>  [<ffffffffa01d7631>] ? acpi_idle_enter_bm+0x274/0x2a2 [processor]
 [<ffffffffa01d7627>] ? acpi_idle_enter_bm+0x26a/0x2a2 [processor]
 [<ffffffff80402ca5>] ? cpuidle_idle_call+0xa5/0x100
 [<ffffffff8020b11e>] ? cpu_idle+0x6e/0xe0
 [<ffffffff804921f6>] ? start_secondary+0x1bd/0x2a7

.config and dmesg attached.

Cheers.

-- 
Guillaume

Download attachment "dmesg" of type "application/octet-stream" (34181 bytes)

Download attachment "config" of type "application/octet-stream" (59449 bytes)

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