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Message-ID: <41598.64.213.30.2.1216792966.squirrel@webmail.exetel.com.au> Date: Wed, 23 Jul 2008 16:02:46 +1000 (EST) From: "Robert Lowery" <rglowery@...mail.com.au> To: linux-kernel@...r.kernel.org Subject: 2.6.26 crash loading firmware in tuner_xc2028.ko Folks, For many months, I've been using the v4l-dvb experimental tree to get my DVICO Dual Digital 4 DVB card working with mythtv. Since support for this card has been merged as of 2.6.25 in tuner_xc2028.ko, I decided to give it spin (via the Ubuntu Intrepid 2.6.26-4 package). Unfortunately I'm now getting an Oops (below) on load of the firmware available at http://www.itee.uq.edu.au/~chrisp/Linux-DVB/DVICO/xc3028-dvico-au-01.fw. I'm probably missing something obvious, but I can't spot any issues in load_all_firmwares() or release_firmware() Suggestions appreciated, Thanks for your help -Rob [ 103.974543] xc2028 1-0061: Loading 3 firmware images from xc3028-dvico-au-01.fw, type: DViCO DualDig4/Nano2 (Australia), ver 2.7 [ 103.984657] BUG: unable to handle kernel NULL pointer dereference at 00000000 [ 103.984690] IP: [<c0361a85>] _mutex_lock_interruptible_slowpath+0x35/0xe0 [ 103.984716] *pde = 00000000 [ 103.984731] Oops: 0002 [#1] SMP [ 103.984742] Modules linked in: nfsd auth_rpcgss exportfs speedstep_lib cpufreq_conservative cpufreq_powersave cpufreq_userspace cpufreq_ondemand cpufreq_stats freq_table container video output sbs sbshc battery nfs lockd nfs_acl sunrpc iptable_filter ip_tables x_tables xfs ac lp tuner_xc2028 zl10353 dvb_usb_cxusb dvb_usb snd_maestro3 dvb_core snd_ac97_codec serio_raw ac97_bus snd_seq_dummy psmouse snd_seq_oss snd_seq_midi snd_pcsp snd_rawmidi snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi_event snd_seq snd_page_alloc snd_timer snd_seq_device sndbutto n i2c_viapro soundcore i2c_core shpchp pci_hotplug via686a via_agp parport_pc parport agpgart ipv6 evdev ext3 jbd mbcache sg sr_mod cdrom sd_mod pata_acpi floppy pata_sil680 sym53c8xx ehci_hcd e100 uhci_hcd pata_via ata_generic mii usbcore scsi_transport_spi libata scsi_mod dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb cn fuse [ 103.984962] [ 103.984971] Pid: 6492, comm: kdvb-fe-0 Not tainted (2.6.26-4-generic #1) [ 103.984981] EIP: 0060:[<c0361a85>] EFLAGS: 00010246 CPU: 1 [ 103.984998] EIP is at __mutex_lock_interruptible_slowpath+0x35/0xe0 [ 103.985009] EAX: f6783d30 EBX: f7aa0c5c ECX: f7aa0c64 EDX: 00000000 [ 103.985020] ESI: f670d400 EDI: f7aa0c60 EBP: f6783d90 ESP: f6783d2c [ 103.985031] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 103.985040] Process kdvb-fe-0 (pid: 6492, ti=f6782000 task=f670d400 task.ti=f6782000) [ 103.985050] Stack: f7aa0c64 f7aa0c64 00000000 c029e80f f6783d90 00000003 f7aa0720 f6783d90 [ 103.985074] f8b43b79 f6755d55 00000030 f8cbbaa5 f8cbdb14 0001d729 f7aa0c5c 00000061 [ 103.985094] f6783d90 f6783dcf f6783d93 f6783db8 f8b84251 f6783dcf 00000001 00000000 [ 103.985114] Call Trace: [ 103.985129] [<c029e80f>] release_firmware+0xf/0x20 [ 103.985165] [<f8b43b79>] dvb_usb_generic_rw+0x69/0x190 [dvb_usb] [ 103.985202] [<f8cbbaa5>] load_all_firmwares+0x415/0x740 [tuner_xc2028] [ 103.985244] [<f8b84251>] cxusb_ctrl_msg+0xa1/0xd0 [dvb_usb_cxusb] [ 103.985296] [<f8b84737>] cxusb_bluebird_gpio_rw+0x37/0x50 [dvb_usb_cxusb] [ 103.985321] [<f8b852a6>] cxusb_bluebird_gpio_pulse+0x56/0x70 [dvb_usb_cxusb] [ 103.985347] [<f8b85443>] dvico_bluebird_xc2028_callback+0x13/0x30 [dvb_usb_cxusb] [ 103.985363] [<f8cbc058>] check_firmware+0x288/0x880 [tuner_xc2028] [ 103.985389] [<f8b84251>] cxusb_ctrl_msg+0xa1/0xd0 [dvb_usb_cxusb] [ 103.985440] [<f8b8449f>] cxusb_i2c_xfer+0x21f/0x3c0 [dvb_usb_cxusb] [ 103.985463] [<f8cbc6b6>] generic_set_freq+0x66/0x500 [tuner_xc2028] [ 103.985495] [<c01049c7>] common_interrupt+0x23/0x28 [ 103.985526] [<f89f439f>] i2c_transfer+0x6f/0xa0 [i2c_core] [ 103.985572] [<f8cbce64>] xc2028_set_params+0xf4/0x230 [tuner_xc2028] [ 103.985604] [<f8b06c95>] zl10353_set_parameters+0x505/0x660 [zl10353] [ 103.985634] [<c03610c4>] schedule+0x284/0x520 [ 103.985698] [<f8b745b1>] dvb_frontend_swzigzag_autotune+0xc1/0x240 [dvb_core] [ 103.985769] [<c01353b0>] process_timeout+0x0/0x10 [ 103.985806] [<f8b74cd9>] dvb_frontend_swzigzag+0x179/0x270 [dvb_core] [ 103.985837] [<f8b755af>] dvb_frontend_thread+0x38f/0x430 [dvb_core] [ 103.985862] [<c011d783>] __wake_up_common+0x43/0x70 [ 103.985894] [<c013fe00>] autoremove_wake_function+0x0/0x50 [ 103.985925] [<f8b75220>] dvb_frontend_thread+0x0/0x430 [dvb_core] [ 103.985941] [<c013faf9>] kthread+0x39/0x70 [ 103.985941] [<c013fac0>] kthread+0x0/0x70 [ 103.985941] [<c0104bd3>] kernel_thread_helper+0x7/0x14 [ 103.985941] ======================= [ 103.985941] Code: ec 10 89 f8 64 8b 35 00 80 4d c0 e8 16 0e 00 00 8d 43 08 89 04 24 8d 44 24 04 8b 53 0c 89 43 0c 8b 0c 24 89 54 24 08 89 4c 24 04 <89> 02 ba ff ff ff ff 89 74 24 0c 89 d0 87 03 83 e8 01 74 5f 87 [ 103.985941] EIP: [<c0361a85>]__mutex_lock_interruptible_slowpath+0x35/0xe0 SS:ESP 0068:f6783d2c [ 103.985941] ---[ end trace 9e886fbc373acdcc ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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