Hi Jonathan and Daniel, On Sunday 14 August 2011 18:31:31 Jonathan Nieder wrote: > Daniel Dickinson wrote[1]: > > New in 3.0.0: > > > > webcam oopses and then spams syslog. Didn't happen in .39 so is a > > regression. > > > > uvcvideo: Found UVC 1.00 device HP Webcam-101 (0bda:58e0) > > > > From syslog: > > > > [ 428.117889] Linux video capture interface: v2.00 > > [ 428.161164] uvcvideo: Found UVC 1.00 device HP Webcam-101 (0bda:58e0) > > [ 428.167520] ------------[ cut here ]------------ > > [ 428.167562] kernel BUG at [...]/drivers/media/media-entity.c:346! > > [ 428.167605] invalid opcode: 0000 [#1] SMP > > [ 428.167705] CPU 1 > > [ 428.167739] Modules linked in: uvcvideo(+) snd_seq_midi joydev > > videodev media v4l2_compat_ioctl32 snd_rawmidi snd_seq_midi_event > > snd_seq arc4 snd_timer snd_seq_device ath9k radeon(+) mac80211 > > ath9k_common ath9k_hw ttm ath drm_kms_helper drm snd hp_wmi cfg80211 > > sparse_keymap sp5100_tco edac_core soundcore rfkill i2c_algo_bit evdev > > snd_page_alloc edac_mce_amd psmouse k10temp shpchp i2c_piix4 serio_raw > > ac battery video i2c_core power_supply pci_hotplug pcspkr wmi button > > processor ext4 mbcache jbd2 crc16 sha256_generic cryptd aes_x86_64 > > aes_generic cbc dm_crypt dm_mod raid10 raid456 async_raid6_recov > > async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 > > multipath linear md_mod usbhid hid sg sr_mod sd_mod cdrom crc_t10dif > > ohci_hcd thermal thermal_sys ahci libahci r8169 ehci_hcd mii libata > > scsi_mod usbcore [last unloaded: scsi_wait_scan] [ 428.170836] > > [ 428.170872] Pid: 659, comm: modprobe Not tainted 3.0.0-1-amd64 #1 > > Hewlett-Packard Presario CQ56 Notebook PC/1604 [ 428.171010] RIP: > > 0010:[<ffffffffa04d0d18>] [<ffffffffa04d0d18>] > > media_entity_create_link+0x2c/0xd4 [media] [ 428.171088] RSP: > > 0018:ffff8801093c5c28 EFLAGS: 00010246 > > [ 428.171125] RAX: ffff88010861f800 RBX: ffff88010861f870 RCX: > > 0000000000000000 [ 428.171163] RDX: ffff880108603870 RSI: > > 0000000000000000 RDI: ffff88010861f870 [ 428.171201] RBP: > > ffff880108603870 R08: 0000000000000003 R09: ffffffff81756440 [ > > 428.171238] R10: 0000000000012800 R11: 0000000000015670 R12: > > 0000000000000000 [ 428.171276] R13: ffff880108603870 R14: > > 0000000000000000 R15: 0000000000000000 [ 428.171315] FS: > > 00007f6831cb3700(0000) GS:ffff88010fc80000(0000) knlGS:0000000000000000 > > [ 428.171355] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ > > 428.171360] CR2: 0000000001858008 CR3: 0000000109eaa000 CR4: > > 00000000000006e0 [ 428.171360] DR0: 0000000000000000 DR1: > > 0000000000000000 DR2: 0000000000000000 [ 428.171360] DR3: > > 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ > > 428.171360] Process modprobe (pid: 659, threadinfo ffff8801093c4000, > > task ffff880107a70300) [ 428.171360] Stack: > > [ 428.171360] 0000000000000002 0000000000000002 0000000000000000 > > ffff880108603800 [ 428.171360] ffff88010a0eac40 0000000000000000 > > ffff880108603870 ffff88010a0eac58 [ 428.171360] 0000000000000000 > > ffffffffa04fefb1 ffff8801099c1408 ffff88010a0eac48 [ 428.171360] Call > > Trace: > > [ 428.171360] [<ffffffffa04fefb1>] ? > > uvc_mc_register_entities+0x160/0x1eb [uvcvideo] [ 428.171360] > > [<ffffffffa04f9793>] ? uvc_probe+0x1ee7/0x1f18 [uvcvideo] [ 428.171360] > > [<ffffffffa006c79d>] ? usb_probe_interface+0xfc/0x16f [usbcore] [ > > 428.171360] [<ffffffff81249a37>] ? driver_probe_device+0xb2/0x142 [ > > 428.171360] [<ffffffff81249b16>] ? __driver_attach+0x4f/0x6f [ > > 428.171360] [<ffffffff81249ac7>] ? driver_probe_device+0x142/0x142 [ > > 428.171360] [<ffffffff81248d22>] ? bus_for_each_dev+0x47/0x72 [ > > 428.171360] [<ffffffff812493a9>] ? bus_add_driver+0xa2/0x1f2 [ > > 428.171360] [<ffffffff81249fb0>] ? driver_register+0x8d/0xf5 [ > > 428.171360] [<ffffffffa006ba66>] ? usb_register_driver+0x80/0x128 > > [usbcore] [ 428.171360] [<ffffffffa0508000>] ? 0xffffffffa0507fff > > [ 428.171360] [<ffffffffa050801b>] ? uvc_init+0x1b/0x1000 [uvcvideo] > > [ 428.171360] [<ffffffff81002172>] ? do_one_initcall+0x78/0x132 > > [ 428.171360] [<ffffffff81076703>] ? sys_init_module+0xbc/0x245 > > [ 428.171360] [<ffffffff8133ba92>] ? system_call_fastpath+0x16/0x1b > > [ 428.171360] Code: 57 41 89 cf 41 56 41 89 f6 41 55 41 54 55 48 89 d5 > > 53 48 89 fb 48 83 ec 18 48 85 d2 74 05 48 85 ff 75 02 0f 0b 66 3b 77 3c > > 72 02 <0f> 0b 66 3b 4a 3c 72 02 0f 0b 44 89 44 24 08 41 bd f4 ff ff ff [ > > 428.171360] RIP [<ffffffffa04d0d18>] > > media_entity_create_link+0x2c/0xd4 [media] [ 428.171360] RSP > > <ffff8801093c5c28> > > [ 428.175002] ---[ end trace 3db524e10ad1aec0 ]--- > > > > and then: > > > > udevd[420]: timeout: killing 'usb_id --export > > /devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3:1.0/video4linux/video0' > > [712] > > Known problem? Any hints for tracking it down? No it's not a know issue. I've answered (or at least tried to answer) the original bug report. Daniel, could you please send me the output of lsusb -v -d 0bda:58e0 (running as root if possible) ? -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
