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In-Reply-To: <61936849.20100811001257@eikelenboom.it>
References: <61936849.20100811001257@eikelenboom.it>
Date: Tue, 10 Aug 2010 18:45:20 -0400
Message-ID: <AANLkTinVNms-vdfG-VZzkOadogaCRV+HyDAY5yhYOJSK@mail.gmail.com>
Subject: Re: [2.6.35] usb 2.0 em28xx kernel panic general protection fault: 
	0000 [#1] SMP RIP: 0010:[<ffffffffa004fbc5>] [<ffffffffa004fbc5>] 
	em28xx_isoc_copy_vbi+0x62e/0x812 [em28xx]
From: Devin Heitmueller <dheitmueller@kernellabs.com>
To: Sander Eikelenboom <linux@eikelenboom.it>
Cc: mchehab@infradead.org, mrechberger@gmail.com, gregkh@suse.de,
        linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
        linux-usb@vger.kernel.org
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Hello Sander,

Which application were you using, and specifically which em28xx based
product do you have?

Devin

On Tue, Aug 10, 2010 at 6:12 PM, Sander Eikelenboom
<linux@eikelenboom.it> wrote:
> Hi,
>
> While trying to test try and report about some other bugs, ?i ran into this kernel panic when trying to grab video from my usb 2.0 em28xx videgrabber connected to a usb 2.0 port.
> Complete serial log attachted.
>
>
> [ ?279.680018] general protection fault: 0000 [#1] SMP
> [ ?279.683901] last sysfs file: /sys/devices/pci0000:00/0000:00:12.2/usb1/1-5/i2c-0/name
> [ ?279.683901] CPU 5
> [ ?279.683901] Modules linked in: xt_multiport ipt_REJECT xt_recent xt_limit xt_tcpudp powernow_k8 mperf xt_state ipt_MA
> SQUERADE ipt_LOG iptable_mangle iptable_filter iptable_nat ip_tables nf_nat x_tables nf_conntrack_ipv4 nf_conntrack nf_d
> efrag_ipv4 fuse hwmon_vid loop saa7115 snd_cmipci gameport snd_opl3_lib snd_hwdep snd_mpu401_uart snd_rawmidi em28xx v4l
> 2_common snd_hda_codec_atihdmi snd_hda_intel snd_hda_codec snd_pcm snd_seq_device videodev snd_timer snd v4l1_compat v4l
> 2_compat_ioctl32 videobuf_vmalloc videobuf_core psmouse tpm_tis joydev evdev tveeprom serio_raw shpchp edac_core i2c_pii
> x4 soundcore pcspkr i2c_core pci_hotplug wmi snd_page_alloc processor button sd_mod r8169 thermal fan thermal_sys [last
> unloaded: scsi_wait_scan]
> [ ?279.683901]
> [ ?279.683901] Pid: 0, comm: swapper Not tainted 2.6.352.6.35-vanilla-xhci-isoc+ #6 890FXA-GD70 (MS-7640) ?/MS-7640
> [ ?279.683901] RIP: 0010:[<ffffffffa004fbc5>] ?[<ffffffffa004fbc5>] em28xx_isoc_copy_vbi+0x62e/0x812 [em28xx]
> [ ?279.683901] RSP: 0018:ffff880001b43c68 ?EFLAGS: 00010082
> [ ?279.683901] RAX: dead000000200200 RBX: 0000000000000804 RCX: ffff880229625818
> [ ?279.683901] RDX: dead000000100100 RSI: 0000000000000003 RDI: ffff880229625868
> [ ?279.683901] RBP: ffff880001b43d08 R08: 0000000000000000 R09: 0000000000000804
> [ ?279.683901] R10: ffff880229597000 R11: 0000000000000000 R12: 0000000000000000
> [ ?279.683901] R13: ffff88022f158820 R14: ffff880229597000 R15: 0000000000000344
> [ ?279.683901] FS: ?00007fa4bd3706e0(0000) GS:ffff880001b40000(0000) knlGS:0000000000000000
> [ ?279.683901] CS: ?0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ ?279.683901] CR2: 00007fa4bd35f000 CR3: 000000022a9ad000 CR4: 00000000000006e0
> [ ?279.683901] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ ?279.683901] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ ?279.683901] Process swapper (pid: 0, threadinfo ffff880237d4a000, task ffff880237d2f7a0)
> [ ?279.683901] Stack:
> [ ?279.683901] ?ffffffff8103d7a3 ffff880001b43cb0 0000000000000082 ffff8802375e2188
> [ ?279.683901] <0> 0000000000000804 ffff880229625818 ffff880229597a40 ffff880229597a90
> [ ?279.683901] <0> ffffc90010b72000 0000000000000000 0000002237d20000 ffff880229597000
> [ ?279.683901] Call Trace:
> [ ?279.683901] ?<IRQ>
> [ ?279.683901] ?[<ffffffff8103d7a3>] ? enqueue_task+0x77/0x87
> [ ?279.683901] ?[<ffffffffa0053398>] em28xx_irq_callback+0x7e/0xfe [em28xx]
> [ ?279.683901] ?[<ffffffff81359415>] usb_hcd_giveback_urb+0x84/0xb8
> [ ?279.683901] ?[<ffffffff8136b51b>] ehci_urb_done+0xcf/0xe4
> [ ?279.683901] ?[<ffffffff8136cd15>] ehci_work+0x504/0x8da
> [ ?279.683901] ?[<ffffffff81370fda>] ehci_irq+0x19c/0x1ce
> [ ?279.683901] ?[<ffffffff81358bd1>] usb_hcd_irq+0x3e/0x83
> [ ?279.683901] ?[<ffffffff8108782c>] handle_IRQ_event+0x58/0x136
> [ ?279.683901] ?[<ffffffff81089414>] handle_fasteoi_irq+0x92/0xd2
> [ ?279.683901] ?[<ffffffff8100b241>] handle_irq+0x1f/0x2a
> [ ?279.683901] ?[<ffffffff8100a884>] do_IRQ+0x5a/0xc1
> [ ?279.683901] ?[<ffffffff8146c953>] ret_from_intr+0x0/0x11
> [ ?279.683901] ?<EOI>
> [ ?279.683901] ?[<ffffffffa0044740>] ? acpi_idle_enter_simple+0x130/0x168 [processor]
> [ ?279.683901] ?[<ffffffffa004473c>] ? acpi_idle_enter_simple+0x12c/0x168 [processor]
> [ ?279.683901] ?[<ffffffff813ad822>] cpuidle_idle_call+0x9b/0xfd
> [ ?279.683901] ?[<ffffffff81007868>] cpu_idle+0x51/0x84
> [ ?279.683901] ?[<ffffffff81466d1b>] start_secondary+0x1c0/0x1c5
> [ ?279.683901] Code: 83 ef 80 e8 69 39 01 e1 48 8b 4d 88 49 c7 86 18 0b 00 00 00 00 00 00 be 03 00 00 00 48 8b 51 40 48
> 8b 41 48 48 89 cf 48 83 c7 50 <48> 89 42 08 48 89 10 48 b8 00 01 10 00 00 00 ad de 48 89 41 40
> [ ?279.683901] RIP ?[<ffffffffa004fbc5>] em28xx_isoc_copy_vbi+0x62e/0x812 [em28xx]
> [ ?279.683901] ?RSP <ffff880001b43c68>
> [ ?279.683901] ---[ end trace 0f55a03076b067cf ]---
> [ ?279.683901] Kernel panic - not syncing: Fatal exception in interrupt
> [ ?279.683901] Pid: 0, comm: swapper Tainted: G ? ? ?D ? ? 2.6.352.6.35-vanilla-xhci-isoc+ #6
> [ ?279.683901] Call Trace:
> [ ?279.683901] ?<IRQ> ?[<ffffffff81469cf9>] panic+0xb1/0x12a
> [ ?279.683901] ?[<ffffffff81043b90>] ? kmsg_dump+0x126/0x140
> [ ?279.683901] ?[<ffffffff8100c354>] oops_end+0x89/0x96
> [ ?279.683901] ?[<ffffffff8100c534>] die+0x55/0x5e
> [ ?279.683901] ?[<ffffffff8100a26f>] do_general_protection+0x130/0x138
> [ ?279.683901] ?[<ffffffff8146cc05>] general_protection+0x25/0x30
> [ ?279.683901] ?[<ffffffffa004fbc5>] ? em28xx_isoc_copy_vbi+0x62e/0x812 [em28xx]
> [ ?279.683901] ?[<ffffffffa004fba2>] ? em28xx_isoc_copy_vbi+0x60b/0x812 [em28xx]
> [ ?279.683901] ?[<ffffffff8103d7a3>] ? enqueue_task+0x77/0x87
> [ ?279.683901] ?[<ffffffffa0053398>] em28xx_irq_callback+0x7e/0xfe [em28xx]
> [ ?279.683901] ?[<ffffffff81359415>] usb_hcd_giveback_urb+0x84/0xb8
> [ ?279.683901] ?[<ffffffff8136b51b>] ehci_urb_done+0xcf/0xe4
> [ ?279.683901] ?[<ffffffff8136cd15>] ehci_work+0x504/0x8da
> [ ?279.683901] ?[<ffffffff81370fda>] ehci_irq+0x19c/0x1ce
> [ ?279.683901] ?[<ffffffff81358bd1>] usb_hcd_irq+0x3e/0x83
> [ ?279.683901] ?[<ffffffff8108782c>] handle_IRQ_event+0x58/0x136
> [ ?279.683901] ?[<ffffffff81089414>] handle_fasteoi_irq+0x92/0xd2
> [ ?279.683901] ?[<ffffffff8100b241>] handle_irq+0x1f/0x2a
> [ ?279.683901] ?[<ffffffff8100a884>] do_IRQ+0x5a/0xc1
> [ ?279.683901] ?[<ffffffff8146c953>] ret_from_intr+0x0/0x11
> [ ?279.683901] ?<EOI> ?[<ffffffffa0044740>] ? acpi_idle_enter_simple+0x130/0x168 [processor]
> [ ?279.683901] ?[<ffffffffa004473c>] ? acpi_idle_enter_simple+0x12c/0x168 [processor]
> [ ?279.683901] ?[<ffffffff813ad822>] cpuidle_idle_call+0x9b/0xfd
> [ ?279.683901] ?[<ffffffff81007868>] cpu_idle+0x51/0x84
> [ ?279.683901] ?[<ffffffff81466d1b>] start_secondary+0x1c0/0x1c5
>
>
>
>
>
> --
> Sander



-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
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