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Message-ID: <1815316554.20101027174715@eikelenboom.it> Date: Wed, 27 Oct 2010 17:47:15 +0200 From: Sander Eikelenboom <linux@...elenboom.it> To: Mauro Carvalho Chehab <mchehab@...radead.org> CC: Devin Heitmueller <dheitmueller@...nellabs.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org> Subject: Re: [em28xx] BUG: unable to handle kernel paging request at ffff880478a16ff8 IP: [<ffffffff81436cf1>] ir_g_keycode_from_table+0x4d/0xb1 Hi Mauro, Sorry for the noise, it seems to be all ready fixed by pulling in your pull request for 2.6.37-rc1: http://lkml.indiana.edu/hypermail/linux/kernel/1010.3/01594.html -- Sander Wednesday, October 27, 2010, 12:09:54 PM, you wrote: > Hi Mauro, > When plugging in my em28xx based grabber in a USB2.0 port i get this stack trace (complete boot log attached) > Kernel used: Linus tree commit 12ba8d1e9262ce81a695795410bd9ee5c9407ba1 (pull of todays 2.6.37 merge window tree) > [ 43.628015] u 2-4: new high sed USB device usg ehci_hcd and address 2 > [ 43.755974] u 2-4: New USB dece found, idVend=2304, idProduct208 > [ 43.7626] usb 2-4: New USB device stris: Mfr=2, Produc1, SerialNumber= > [ 43.769828] b 2-4: Product: PCTV USB2 PAL > [ 43.774013usb 2-4: Manufacturer: Pinnacle Systems GmbH > [ 43.779540] em28xx: New device Pinnacle Systems GmbH PCTV USB2 PAL @ 480 Mbps (2304:0208, interface 0, class 0) > [ 43.789721] em28xx #0: chip ID is em2820 (or em2710) > [ 43.894981] e8xx #0: i2c eepr 00: 1a eb 67 9504 23 08 02 10 001e 03 98 1e 6a 2e > [ 43.903147] em28xx #0: i2c prom 10: > 00 00 0 57 6e 00 00 00 8e 00 00 00 07 00 00 00 > [ 43.911317] em28xx #0: i2c eeprom 20: 16 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 > [ 43.919456] em28xx #0: i2c eeprom 30: 00 00 20 40 20 80 02 20 10 01 00 00 00 00 00 00 > [ 43.927620] em28xx #0: i2c eeprom 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > [ 43.935751] em28xx #0: i2c eeprom 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > [ 43.943907] em28xx #0: i2c eeprom 60: 00 00 00 00 00 00 00 00 00 00 2e 03 50 00 69 00 > [ 43.952066] em28xx #0: i2c eeprom 70: 6e 00 6e 00 61 00 63 00 6c 00 65 00 20 00 53 00 > [ 43.960227] em28xx #0: i2c eeprom 80: 79 00 73 00 74 00 65 00 6d 00 73 00 20 00 47 00 > [ 43.968385] em28xx #0: i2c eeprom 90: 6d 00 62 00 48 00 00 00 1e 03 50 00 43 00 54 00 > [ 43.976531] em28xx #0: i2c eeprom a0: 56 00 20 00 55 00 53 00 42 00 32 00 20 00 50 00 > [ 43.984687] em28xx #0: i2c eeprom b0: 41 00 4c 00 00 00 06 03 31 00 00 00 00 00 00 00 > [ 43.992834] em28xx #0: i2c eeprom c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > [ 44.000990] em28xx #0: i2c eeprom d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > [ 44.009143] em28xx #0: i2c eeprom e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > [ 44.017288] em28xx #0: i2c eeprom f0: 00 00 00 00 00 00 00 00 07 56 d9 35 01 ed 0b f8 > [ 44.025436] em28xx #0: EEPROM ID= 0x9567eb1a, EEPROM hash = 0x0fd77740 > [ 44.031957] em28xx #0: EEPROM info: > [ 44.035449] em28xx #0: AC97 audio (5 sample rates) > [ 44.040241] em28xx #0: 500mA max power > [ 44.043996] em28xx #0: Table at 0x06, strings=0x1e98, 0x2e6a, 0x0000 > [ 44.051400] Registered IR keymap rc-pinnacle-grey > [ 44.056170] input: i2c IR (i2c IR (EM28XX Pinnacle as /devices/virtual/rc/rc0/input4 > [ 44.063962] rc0: i2c IR (i2c IR (EM28XX Pinnacle as /devices/virtual/rc/rc0 > [ 44.070928] ir-kbd-i2c: i2c IR (i2c IR (EM28XX Pinnacle detected at i2c-17/17-0047/ir0 [em28xx #0] > [ 44.079894] em28xx #0: Identified as Pinnacle PCTV USB 2 (card=3) > [ 44.086509] BUG: unable to handle kernel paging request at ffff880478a16ff8 > [ 44.087061] IP: [<ffffffff81436cf1>] ir_g_keycode_from_table+0x4d/0xb1 > [ 44.087061] PGD 1c04063 PUD 0 > [ 44.087061] Oops: 0000 [#1] SMP > [ 44.087061] last sysfs file: /sys/devices/virtual/rc/rc0/input4/capabilities/sw > [ 44.087061] CPU 1 > [ 44.087061] Modules linked in: [last unloaded: scsi_wait_scan] > [ 44.087061] > [ 44.087061] Pid: 494, comm: kworker/1:1 Not tainted 2.6.36+ #2 P5Q-EM DO/System Product Name > [ 44.087061] RIP: 0010:[<ffffffff81436cf1>] [<ffffffff81436cf1>] ir_g_keycode_from_table+0x4d/0xb1 > [ 44.087061] RSP: 0000:ffff880079d61da0 EFLAGS: 00010817 > [ 44.087061] RAX: 000000007fffffff RBX: ffff880078a72800 RCX: 0000000000000000 > [ 44.087061] RDX: 000000007fffffff RSI: 0000000000000282 RDI: 00000000ffffffff > [ 44.157005] RBP: ffff880079d61dc0 R08: ffff880078a17000 R09: 0000000000000029 > [ 44.157005] R10: ffff880079d61db0 R11: dead000000200200 R12: ffff880078a729b0 > [ 44.157005] R13: 0000000000000000 R14: ffff880078a70c00 R15: ffff88007ca96700 > [ 44.157005] FS: 0000000000000000(0000) GS:ffff88007ca80000(0000) knlGS:0000000000000000 > [ 44.157005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 44.157005] CR2: ffff880478a16ff8 CR3: 00000000780c3000 CR4: 00000000000406e0 > [ 44.157005] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 44.157005] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 44.157005] Process kworker/1:1 (pid: 494, threadinfo ffff880079d60000, task ffff88007c3d9650) > [ 44.157005] Stack: > [ 44.157005] ffff880078a72800 0000000000000000 0000000000000064 ffff880078a70c00 > [ 44.157005] <0> ffff880079d61e10 ffffffff81436f51 ffff880079d61e10 ffffffff81459259 > [ 44.157005] <0> 0000000000000000 ffff880078bf1140 ffff880078bf1100 0000000000000064 > [ 44.157005] Call Trace: > [ 44.157005] [<ffffffff81436f51>] ir_keydown+0x34/0x138 > [ 44.157005] [<ffffffff81459259>] ? em28xx_get_key_pinnacle_usb_grey+0x28/0xa3 > [ 44.157005] [<ffffffff8145cbda>] ir_work+0x99/0xb6 > [ 44.157005] [<ffffffff8105fb52>] process_one_work+0x1d5/0x2d2 > [ 44.157005] [<ffffffff8145cb41>] ? ir_work+0x0/0xb6 > [ 44.157005] [<ffffffff8105ff2d>] worker_thread+0x146/0x277 > [ 44.157005] [<ffffffff8105fde7>] ? worker_thread+0x0/0x277 > [ 44.157005] [<ffffffff810645f7>] kthread+0x81/0x89 > [ 44.157005] [<ffffffff8100bae4>] kernel_thread_helper+0x4/0x10 > [ 44.157005] [<ffffffff81064576>] ? kthread+0x0/0x89 > [ 44.157005] [<ffffffff8100bae0>] ? kernel_thread_helper+0x0/0x10 > [ 44.157005] Code: 00 00 48 89 c3 4c 89 e7 e8 a5 5e 20 00 44 8b 8b 94 01 00 00 4c 8b 83 88 01 00 00 48 89 c6 31 c9 41 > 8d 79 ff 8d 14 0f d1 ea 89 d0 <45> 39 2c c0 73 05 8d 4a 01 eb 0c 77 07 44 39 ca 72 0b eb 10 8d > [ 44.157005] RIP [<ffffffff81436cf1>] ir_g_keycode_from_table+0x4d/0xb1 > [ 44.157005] RSP <ffff880079d61da0> > [ 44.157005] CR2: ffff880478a16ff8 > [ 44.157005] ---[ end trace 2988a93430a1c9ca ]--- > [ 44.351618] BUG: unable to handle kernel paging request at fffffffffffffff8 > [ 44.352583] IP: [<ffffffff81064258>] kthread_data+0xb/0x11 > [ 44.352583] PGD 1c05067 PUD 1c06067 PMD 0 > [ 44.352583] Oops: 0000 [#2] SMP > [ 44.352583] last sysfs file: /sys/devices/virtual/rc/rc0/input4/capabilities/sw > [ 44.352583] CPU 1 > [ 44.352583] Modules linked in: [last unloaded: scsi_wait_scan] > [ 44.352583] > [ 44.352583] Pid: 494, comm: kworker/1:1 Tainted: G D 2.6.36+ #2 P5Q-EM DO/System Product Name > [ 44.352583] RIP: 0010:[<ffffffff81064258>] [<ffffffff81064258>] kthread_data+0xb/0x11 > [ 44.352583] RSP: 0000:ffff880079d61908 EFLAGS: 00010096 > [ 44.352583] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88007c3d9650 > [ 44.352583] RDX: 0000000000000040 RSI: 0000000000000001 RDI: ffff88007c3d9650 > [ 44.352583] RBP: ffff880079d61908 R08: ffff88007ca96380 R09: ffff880079d15958 > [ 44.352583] R10: dead000000200200 R11: 0000000000000000 R12: ffff880079d61a18 > [ 44.352583] R13: ffff88007ca93200 R14: ffff88007c380000 R15: ffff88007c3d98d0 > [ 44.352583] FS: 0000000000000000(0000) GS:ffff88007ca80000(0000) knlGS:0000000000000000 > [ 44.352583] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 44.352583] CR2: fffffffffffffff8 CR3: 0000000001c03000 CR4: 00000000000406e0 > [ 44.352583] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 44.352583] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 44.352583] Process kworker/1:1 (pid: 494, threadinfo ffff880079d60000, task ffff88007c3d9650) > [ 44.352583] Stack: > [ 44.352583] ffff880079d61928 ffffffff81061820 ffff88007c3ebba0 ffff880079d61fd8 > [ 44.352583] <0> ffff880079d619e8 ffffffff8163b347 ffff88007ca8fa60 ffff880079d60010 > [ 44.352583] <0> 0000000000013200 ffff880079d61fd8 ffff880079d61fd8 0000000000013200 > [ 44.352583] Call Trace: > [ 44.352583] [<ffffffff81061820>] wq_worker_sleeping+0x10/0x8f > [ 44.352583] [<ffffffff8163b347>] schedule+0x1c5/0x67a > [ 44.352583] [<ffffffff810688e6>] ? switch_task_namespaces+0x18/0x4c > [ 44.352583] [<ffffffff8104df71>] do_exit+0x7dc/0x7ea > [ 44.352583] [<ffffffff8163e029>] oops_end+0xc7/0xcf > [ 44.352583] [<ffffffff81032ed3>] no_context+0x1f3/0x202 > [ 44.352583] [<ffffffff810f169a>] ? virt_to_head_page+0x9/0x30 > [ 44.352583] [<ffffffff8103309d>] __bad_area_nosemaphore+0x1bb/0x1e1 > [ 44.352583] [<ffffffff813e3ed2>] ? urb_destroy+0x23/0x27 > [ 44.352583] [<ffffffff811f92b2>] ? kref_put+0x43/0x4f > [ 44.352583] [<ffffffff813e3c22>] ? usb_free_urb+0x15/0x17 > [ 44.352583] [<ffffffff813e4c8f>] ? usb_start_wait_urb+0x12b/0x13a > [ 44.352583] [<ffffffff810f2bc1>] ? __kmalloc+0x160/0x16f > [ 44.352583] [<ffffffff810f169a>] ? virt_to_head_page+0x9/0x30 > [ 44.352583] [<ffffffff810330d1>] bad_area_nosemaphore+0xe/0x10 > [ 44.352583] [<ffffffff8164056d>] do_page_fault+0x238/0x43b > [ 44.352583] [<ffffffff81457832>] ? em28xx_read_reg_req_len+0x133/0x18e > [ 44.352583] [<ffffffff814578ab>] ? em28xx_read_reg_req+0x1e/0x28 > [ 44.352583] [<ffffffff8163d415>] page_fault+0x25/0x30 > [ 44.352583] [<ffffffff81436cf1>] ? ir_g_keycode_from_table+0x4d/0xb1 > [ 44.352583] [<ffffffff81436f51>] ir_keydown+0x34/0x138 > [ 44.352583] [<ffffffff81459259>] ? em28xx_get_key_pinnacle_usb_grey+0x28/0xa3 > [ 44.352583] [<ffffffff8145cbda>] ir_work+0x99/0xb6 > [ 44.352583] [<ffffffff8105fb52>] process_one_work+0x1d5/0x2d2 > [ 44.352583] [<ffffffff8145cb41>] ? ir_work+0x0/0xb6 > [ 44.352583] [<ffffffff8105ff2d>] worker_thread+0x146/0x277 > [ 44.352583] [<ffffffff8105fde7>] ? worker_thread+0x0/0x277 > [ 44.352583] [<ffffffff810645f7>] kthread+0x81/0x89 > [ 44.352583] [<ffffffff8100bae4>] kernel_thread_helper+0x4/0x10 > [ 44.352583] [<ffffffff81064576>] ? kthread+0x0/0x89 > [ 44.352583] [<ffffffff8100bae0>] ? kernel_thread_helper+0x0/0x10 > [ 44.352583] Code: 41 5d 41 5e c9 c3 90 55 65 48 8b 04 25 40 cc 00 00 48 8b 80 20 03 00 00 48 89 e5 8b 40 f0 c9 c3 48 > 8b 87 20 03 00 00 55 48 89 e5 <48> 8b 40 f8 c9 c3 55 48 83 c7 40 48 89 e5 e8 71 9f fd ff c9 c3 > [ 44.352583] RIP [<ffffffff81064258>] kthread_data+0xb/0x11 > [ 44.352583] RSP <ffff880079d61908> > [ 44.352583] CR2: fffffffffffffff8 > [ 44.352583] ---[ end trace 2988a93430a1c9cb ]--- > [ 44.352583] Fixing recursive fault but reboot is needed! -- Best regards, Sander mailto:linux@...elenboom.it -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org 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