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Old 06-12-2010, 10:11 AM
Matthias Pitzl
 
Default Bug#585608: linux-image-2.6.32-5-686: SAA7146: BUG: unable to handle kernel NULL pointer dereference at (null)

Package: linux-2.6
Version: 2.6.32-15
Severity: important


When doing a channel scan with my Haupauge WinTV Nexus-S rev 2.3 card, i
get an kernel oops. Seems to be a general problem not only with this
kernel version. Unfortunately i only have a trace for 2.6.43-rc7 but
it's the same trace as i get with kernel versions 2.6.32-3 and 2.6.32-5:

[ 773.280361] IP: [<f825a7ba>] saa7146_buffer_next+0x5e/0x1ed
[saa7146_vv]
[ 773.280361] *pde = 00000000
[ 773.280361] Oops: 0000 [#1] SMP
[ 773.280361] last sysfs file: /sys/module/nfsd/initstate
[ 773.280361] Modules linked in: nfsd exportfs nfs lockd nfs_acl
auth_rpcgss sunrpc f71882fg coretemp loop lnbp21 stv0299 dvb_ttpci
snd_hda_codec_realtek dvb_core saa7146_vv videodev v4l1_compat
snd_hda_intel saa7146 snd_hda_codec videobuf_dma_sg snd_hwdep
videobuf_core snd_pcm i2c_i801 ttpci_eeprom psmouse snd_timer intel_agp
evdev pcspkr snd i2c_core serio_raw agpgart video processor rng_core
soundcore button output snd_page_alloc usb_storage uhci_hcd ehci_hcd
thermal sd_mod crc_t10dif thermal_sys usbcore nls_base e1000e [last
unloaded: scsi_wait_scan]
[ 773.280361]
[ 773.280361] Pid: 0, comm: swapper Not tainted 2.6.34-rc7 #7
A9830IMS/A9830IMS
[ 773.280361] EIP: 0060:[<f825a7ba>] EFLAGS: 00010246 CPU: 0
[ 773.280361] EIP is at saa7146_buffer_next+0x5e/0x1ed [saa7146_vv]
[ 773.280361] EAX: f68b3008 EBX: f733d900 ECX: 00000001 EDX: 00000002
[ 773.280361] ESI: ffffffd4 EDI: f68b3000 EBP: 00000000 ESP: c135fefc
[ 773.280361] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 773.280361] Process swapper (pid: 0, ti=c135e000 task=c138cb60
task.ti=c135e000)
[ 773.280361] Stack:
[ 773.280361] f68b3000 f733d900 c13640bc 0000000a f825e5f6 f733d900
fff7fbf7 f825a759
[ 773.280361] <0> f733d900 ffffffff f812bdfc fff7fbf7 f6a1e240 00000000
c106793a 00000000
[ 773.280361] <0> 00000000 c1364080 0000000a c13640bc c135ff80 c1069072
0000000a 0000000a
[ 773.280361] Call Trace:
[ 773.280361] [<f825e5f6>] ? vbi_irq_done+0x99/0x9f [saa7146_vv]
[ 773.280361] [<f825a759>] ? vv_callback+0x10f/0x112 [saa7146_vv]
[ 773.280361] [<f812bdfc>] ? interrupt_hw+0x9f/0x1a8 [saa7146]
[ 773.280361] [<c106793a>] ? handle_IRQ_event+0x49/0xe7
[ 773.280361] [<c1069072>] ? handle_level_irq+0x55/0x9e
[ 773.280361] [<c10044cb>] ? handle_irq+0x17/0x1c
[ 773.280361] [<c1003da9>] ? do_IRQ+0x38/0x8e
[ 773.280361] [<c1002d30>] ? common_interrupt+0x30/0x38
[ 773.280361] [<c10086e6>] ? mwait_idle+0x59/0x5e
[ 773.280361] [<c1001ae7>] ? cpu_idle+0x91/0xaa
[ 773.280361] [<c13b9881>] ? start_kernel+0x31c/0x321
[ 773.280361] Code: 50 fc 25 f8 e8 9d 0e 01 c9 83 c4 1c 8b 43 44 89 c2
c1 fa 08 38 c2 75 04 0f 0b eb fe 8b 77 08 8d 47 08 39 c6 74 6b 83 ee 2c
31 ed <8b> 4e 2c 8b 56 30 89 51 04 89 0a c7 46 2c 00 01 10 00 c7 46 30
[ 773.280361] EIP: [<f825a7ba>] saa7146_buffer_next+0x5e/0x1ed
[saa7146_vv] SS:ESP 0068:c135fefc
[ 773.280361] CR2: 0000000000000000
[ 773.985900] ---[ end trace ec43c18100749f7e ]---
[ 773.999765] Kernel panic - not syncing: Fatal exception in interrupt
[ 774.018832] Pid: 0, comm: swapper Tainted: G D 2.6.34-rc7 #7
[ 774.037908] Call Trace:
[ 774.045272] [<c126b5c4>] ? panic+0x37/0xa8
[ 774.057844] [<c10050e0>] ? oops_end+0x88/0x93
[ 774.071195] [<c1019bfd>] ? no_context+0x10d/0x116
[ 774.085581] [<c1019f62>] ? do_page_fault+0x0/0x242
[ 774.100232] [<c1019d04>] ? bad_area_nosemaphore+0xa/0xc
[ 774.116194] [<c126d6c3>] ? error_code+0x73/0x78
[ 774.130077] [<f825a7ba>] ? saa7146_buffer_next+0x5e/0x1ed
[saa7146_vv]
[ 774.149941] [<f825e5f6>] ? vbi_irq_done+0x99/0x9f [saa7146_vv]
[ 774.167718] [<f825a759>] ? vv_callback+0x10f/0x112 [saa7146_vv]
[ 774.185762] [<f812bdfc>] ? interrupt_hw+0x9f/0x1a8 [saa7146]
[ 774.203023] [<c106793a>] ? handle_IRQ_event+0x49/0xe7
[ 774.218459] [<c1069072>] ? handle_level_irq+0x55/0x9e
[ 774.233890] [<c10044cb>] ? handle_irq+0x17/0x1c
[ 774.247758] [<c1003da9>] ? do_IRQ+0x38/0x8e
[ 774.260590] [<c1002d30>] ? common_interrupt+0x30/0x38
[ 774.276023] [<c10086e6>] ? mwait_idle+0x59/0x5e
[ 774.289890] [<c1001ae7>] ? cpu_idle+0x91/0xaa
[ 774.303243] [<c13b9881>] ? start_kernel+0x31c/0x321

This can be easily reproduced using the following command:
scan -v /usr/share/dvb/dvb-s/Astra-19.2E

The crash happens after a short random time.

I tried also the different firmware versions for ths DVB-S card but this
doesn't seem to make any difference. I already sent a bug report to
linux-media@vger.kernel.org.

I also tried to start the kernel with nosmp, noapic, noacpi but this
also does not fix the problem.

-- Package-specific info:
** Version:
Linux version 2.6.32-5-686 (Debian 2.6.32-15) (ben@decadent.org.uk) (gcc version 4.3.5 (Debian 4.3.5-1) ) #1 SMP Tue Jun 1 04:59:47 UTC 2010

** Command line:
BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-686 root=UUID=23c9a18d-19a0-4d5e-9e65-551dea6f8e93 ro console=tty0 console=ttyS0,38400n8 quiet

** Not tainted

** Kernel log:
[ 1.993415] usb 1-5: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 1.993422] usb 1-5: Product: USB2.0 Hub
[ 1.993595] usb 1-5: configuration #1 chosen from 1 choice
[ 1.994318] hub 1-5:1.0: USB hub found
[ 1.994678] hub 1-5:1.0: 4 ports detected
[ 2.264290] usb 1-5.1: new high speed USB device using ehci_hcd and address 3
[ 2.276638] sdb1 sdb2
[ 2.289101] sd 2:0:0:0: [sdb] Attached SCSI disk
[ 2.360032] usb 1-5.1: New USB device found, idVendor=05e3, idProduct=0716
[ 2.360041] usb 1-5.1: New USB device strings: Mfr=0, Product=1, SerialNumber=2
[ 2.360047] usb 1-5.1: Product: USB Storage
[ 2.360052] usb 1-5.1: SerialNumber: 000000009722
[ 2.360233] usb 1-5.1: configuration #1 chosen from 1 choice
[ 2.378667] Initializing USB Mass Storage driver...
[ 2.378933] scsi4 : SCSI emulation for USB Mass Storage devices
[ 2.379228] usb-storage: device found at 3
[ 2.379234] usb-storage: waiting for device to settle before scanning
[ 2.379266] usbcore: registered new interface driver usb-storage
[ 2.379393] USB Mass Storage support registered.
[ 2.579418] PM: Starting manual resume from disk
[ 2.579426] PM: Resume from partition 8:17
[ 2.579430] PM: Checking hibernation image.
[ 2.579706] PM: Error -22 checking image file
[ 2.579710] PM: Resume from disk failed.
[ 2.622420] kjournald starting. Commit interval 5 seconds
[ 2.622441] EXT3-fs: mounted filesystem with ordered data mode.
[ 3.254779] udev: starting version 154
[ 3.664192] ACPI: SSDT 7f7ce190 0023C (v01 PmRef Cpu0Ist 00003000 INTL 20051117)
[ 3.665446] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0
[ 3.665466] ACPI: Power Button [PWRB]
[ 3.679805] processor LNXCPU:00: registered as cooling_device0
[ 3.680038] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
[ 3.680056] ACPI: Power Button [PWRF]
[ 3.680369] input: PC Speaker as /devices/platform/pcspkr/input/input2
[ 3.685230] ACPI: SSDT 7f7ce0c0 000CC (v01 PmRef Cpu1Ist 00003000 INTL 20051117)
[ 3.686029] processor LNXCPU:01: registered as cooling_device1
[ 3.795047] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[ 3.800332] intel_rng: FWH not detected
[ 4.013844] [drm] Initialized drm 1.1.0 20060810
[ 4.034474] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input3
[ 4.034619] ACPI: Video Device [IGD] (multi-head: yes rom: no post: no)
[ 4.107066] Error: Driver 'pcspkr' is already registered, aborting...
[ 4.182490] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 4.182500] pci 0000:00:02.0: setting latency timer to 64
[ 4.195610] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[ 4.236483] Linux video capture interface: v2.00
[ 4.249207] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 4.253067] HDA Intel 0000:00:1b.0: setting latency timer to 64
[ 4.298198] saa7146: register extension 'dvb'.
[ 4.298269] dvb 0000:03:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 4.298337] IRQ 16/: IRQF_DISABLED is not guaranteed on shared IRQs
[ 4.298372] saa7146: found saa7146 @ mem f8790c00 (revision 1, irq 16) (0x13c2,0x000e).
[ 4.298402] dvb 0000:03:00.0: firmware: requesting dvb-ttpci-01.fw
[ 4.317338] DVB: registering new adapter (Technotrend/Hauppauge WinTV Nexus-S rev2.3)
[ 4.352697] hda_codec: ALC888: BIOS auto-probing.
[ 4.354370] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input4
[ 4.355172] adapter has MAC addr = 00:d0:5c:25:83:2e
[ 4.363842] dvb 0000:03:00.0: firmware: requesting av7110/bootcode.bin
[ 4.674506] dvb-ttpci: gpioirq unknown type=0 len=0
[ 4.700134] dvb-ttpci: info @ card 0: firm f0240009, rtsl b0250018, vid 71010068, app 80002622
[ 4.700140] dvb-ttpci: firmware @ card 0 supports CI link layer interface
[ 4.748187] dvb-ttpci: Crystal audio DAC @ card 0 detected
[ 4.749144] saa7146_vv: saa7146 (0): registered device video0 [v4l2]
[ 4.749234] saa7146_vv: saa7146 (0): registered device vbi0 [v4l2]
[ 4.974098] LNBx2x attached on addr=8
[ 4.974110] DVB: registering adapter 0 frontend 0 (ST STV0299 DVB-S)...
[ 4.974463] input: DVB on-card IR receiver as /devices/pci0000:00/0000:00:1e.0/0000:03:00.0/input/input5
[ 4.974584] dvb-ttpci: found av7110-0.
[ 5.264571] Adding 498680k swap on /dev/sdb1. Priority:-1 extents:1 across:498680k
[ 5.634653] EXT3 FS on sda1, internal journal
[ 5.709766] loop: module loaded
[ 5.758686] f71882fg: Found f71882fg chip at 0xa00, revision 32
[ 5.762893] f71882fg f71882fg.2560: Fan: 1 is in duty-cycle mode
[ 5.762903] f71882fg f71882fg.2560: Fan: 2 is in duty-cycle mode
[ 5.762912] f71882fg f71882fg.2560: Fan: 3 is in duty-cycle mode
[ 5.762919] f71882fg f71882fg.2560: Fan: 4 is in duty-cycle mode
[ 6.354659] kjournald starting. Commit interval 5 seconds
[ 6.355445] EXT3 FS on sdb2, internal journal
[ 6.355456] EXT3-fs: mounted filesystem with ordered data mode.
[ 6.649190] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 7.376792] usb-storage: device scan complete
[ 7.377600] scsi 4:0:0:0: Direct-Access Generic STORAGE DEVICE 9722 PQ: 0 ANSI: 0
[ 7.381973] sd 4:0:0:0: [sdc] Attached SCSI removable disk
[ 8.342431] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
[ 8.342439] 0000:01:00.0: eth0: 10/100 speed: disabling TSO
[ 8.342916] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 9.565590] RPC: Registered udp transport module.
[ 9.565596] RPC: Registered tcp transport module.
[ 9.565601] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 9.603668] Slow work thread pool: Starting up
[ 9.603772] Slow work thread pool: Ready
[ 9.603892] FS-Cache: Loaded
[ 9.667456] FS-Cache: Netfs 'nfs' registered for caching
[ 9.711461] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 10.218157] ttyS1: LSR safety check engaged!
[ 10.219719] ttyS1: LSR safety check engaged!
[ 12.383587] svc: failed to register lockdv1 RPC service (errno 97).
[ 12.386211] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[ 12.396081] NFSD: starting 90-second grace period
[ 18.808013] eth0: no IPv6 routers present

** Model information
not available

** Loaded modules:
Module Size Used by
nfsd 193279 13
exportfs 2618 1 nfsd
nfs 206782 0
lockd 49437 2 nfsd,nfs
fscache 24662 1 nfs
nfs_acl 1695 2 nfsd,nfs
auth_rpcgss 25240 2 nfsd,nfs
sunrpc 134604 12 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
f71882fg 18258 0
coretemp 3281 0
loop 9757 0
lnbp21 1224 1
stv0299 6600 1
snd_hda_codec_realtek 163214 1
dvb_ttpci 70130 0
dvb_core 62710 2 stv0299,dvb_ttpci
saa7146_vv 32082 1 dvb_ttpci
snd_hda_intel 16703 0
videodev 25545 1 saa7146_vv
snd_hda_codec 46002 2 snd_hda_codec_realtek,snd_hda_intel
v4l1_compat 10250 1 videodev
i915 219952 0
snd_hwdep 4054 1 snd_hda_codec
saa7146 10107 2 dvb_ttpci,saa7146_vv
drm_kms_helper 18305 1 i915
snd_pcm 47214 2 snd_hda_intel,snd_hda_codec
videobuf_dma_sg 7203 1 saa7146_vv
snd_timer 12258 1 snd_pcm
drm 112020 2 i915,drm_kms_helper
videobuf_core 10476 2 saa7146_vv,videobuf_dma_sg
tpm_tis 5496 0
snd 34363 6 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec, snd_hwdep,snd_pcm,snd_timer
ttpci_eeprom 1224 1 dvb_ttpci
evdev 5609 4
i2c_algo_bit 3497 1 i915
tpm 8137 1 tpm_tis
psmouse 44653 0
i2c_i801 6462 0
soundcore 3450 1 snd
tpm_bios 3569 1 tpm
video 14605 1 i915
i2c_core 12696 10 lnbp21,stv0299,dvb_ttpci,videodev,i915,drm_kms_hel per,drm,ttpci_eeprom,i2c_algo_bit,i2c_i801
serio_raw 2916 0
rng_core 2178 0
pcspkr 1207 0
output 1204 1 video
snd_page_alloc 5045 2 snd_hda_intel,snd_pcm
button 3598 1 i915
processor 26599 0
ext3 94204 2
jbd 32169 1 ext3
mbcache 3762 1 ext3
usb_storage 30461 0
sd_mod 25869 5
crc_t10dif 1012 1 sd_mod
thermal 9206 0
uhci_hcd 16057 0
ata_generic 2019 0
ehci_hcd 27763 0
ata_piix 17640 3
libata 115665 2 ata_generic,ata_piix
thermal_sys 9378 3 video,processor,thermal
e1000e 97629 0
scsi_mod 101401 3 usb_storage,sd_mod,libata
usbcore 98402 4 usb_storage,uhci_hcd,ehci_hcd
nls_base 4541 1 usbcore

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GME Express Memory Controller Hub [8086:27ac] (rev 03)
Subsystem: Intel Corporation Mobile 945GME Express Memory Controller Hub [8086:27ac]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: agpgart-intel

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GME Express Integrated Graphics Controller [8086:27ae] (rev 03) (prog-if 00 [VGA controller])
Subsystem: Intel Corporation Mobile 945GME Express Integrated Graphics Controller [8086:27ae]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fe880000 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at cc80 [size=8]
Region 2: Memory at d0000000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at fe840000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>

00:02.1 Display controller [0380]: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller [8086:27a6] (rev 03)
Subsystem: Intel Corporation Device [8086:27ae]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: Memory at fe780000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>

00:1b.0 Audio device [0403]: Intel Corporation N10/ICH 7 Family High Definition Audio Controller [8086:27d8] (rev 02)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fe838000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel

00:1c.0 PCI bridge [0604]: Intel Corporation N10/ICH 7 Family PCI Express Port 1 [8086:27d0] (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fe900000-fe9fffff
Prefetchable memory behind bridge: 0000000080000000-00000000801fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation N10/ICH 7 Family PCI Express Port 2 [8086:27d2] (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: fea00000-feafffff
Prefetchable memory behind bridge: 0000000080200000-00000000803fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1d.0 USB Controller [0c03]: Intel Corporation N10/ICH7 Family USB UHCI Controller #1 [8086:27c8] (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corporation N10/ICH7 Family USB UHCI Controller #1 [8086:27c8]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 4: I/O ports at cc00 [size=32]
Kernel driver in use: uhci_hcd

00:1d.1 USB Controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 [8086:27c9] (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 [8086:27c9]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 19
Region 4: I/O ports at c880 [size=32]
Kernel driver in use: uhci_hcd

00:1d.2 USB Controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 [8086:27ca] (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 [8086:27ca]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at c800 [size=32]
Kernel driver in use: uhci_hcd

00:1d.3 USB Controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 [8086:27cb] (rev 02) (prog-if 00 [UHCI])
Subsystem: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 [8086:27cb]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 16
Region 4: I/O ports at c480 [size=32]
Kernel driver in use: uhci_hcd

00:1d.7 USB Controller [0c03]: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller [8086:27cc] (rev 02) (prog-if 20 [EHCI])
Subsystem: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller [8086:27cc]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 0: Memory at fe837c00 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev e2) (prog-if 01 [Subtractive decode])
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=32
Memory behind bridge: feb00000-febfffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge [8086:27b9] (rev 02)
Subsystem: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge [8086:27b9]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>

00:1f.1 IDE interface [0101]: Intel Corporation 82801G (ICH7 Family) IDE Controller [8086:27df] (rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: Intel Corporation 82801G (ICH7 Family) IDE Controller [8086:27df]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at ffa0 [size=16]
Kernel driver in use: ata_piix

00:1f.2 IDE interface [0101]: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller [8086:27c4] (rev 02) (prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller [8086:27c4]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 19
Region 0: I/O ports at c400 [size=8]
Region 1: I/O ports at c080 [size=4]
Region 2: I/O ports at c000 [size=8]
Region 3: I/O ports at bc80 [size=4]
Region 4: I/O ports at bc00 [size=16]
Region 5: Memory at fe837800 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ata_piix

00:1f.3 SMBus [0c05]: Intel Corporation N10/ICH 7 Family SMBus Controller [8086:27da] (rev 02)
Subsystem: Intel Corporation N10/ICH 7 Family SMBus Controller [8086:27da]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 19
Region 4: I/O ports at 0400 [size=32]
Kernel driver in use: i801_smbus

01:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit Network Connection [8086:10d3]
Subsystem: Micro-Star International Co., Ltd. Device [1462:9830]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at fe9e0000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at dc80 [size=32]
Region 3: Memory at fe9dc000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: e1000e

02:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit Network Connection [8086:10d3]
Subsystem: Micro-Star International Co., Ltd. Device [1462:9830]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at feae0000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at ec80 [size=32]
Region 3: Memory at feadc000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: e1000e

03:00.0 Multimedia controller [0480]: Philips Semiconductors SAA7146 [1131:7146] (rev 01)
Subsystem: Technotrend Systemtechnik GmbH Technotrend/Hauppauge DVB card rev2.3 [13c2:000e]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 64 (3750ns min, 9500ns max)
Interrupt: pin A routed to IRQ 16
Region 0: Memory at febffc00 (32-bit, non-prefetchable) [size=512]
Kernel driver in use: dvb


** USB devices:
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 05e3:0716 Genesys Logic, Inc. USB 2.0 Multislot Card Reader/Writer
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.32-5-686 depends on:
ii debconf [debconf-2.0] 1.5.32 Debian configuration management sy
ii initramfs-tools [linux-initr 0.94.4 tools for generating an initramfs
ii linux-base 2.6.32-15 Linux image base package
ii module-init-tools 3.12~pre2-3 tools for managing Linux kernel mo

Versions of packages linux-image-2.6.32-5-686 recommends:
ii firmware-linux-free 2.6.32-15 Binary firmware for various driver
ii libc6-i686 2.10.2-9 GNU C Library: Shared libraries [i

Versions of packages linux-image-2.6.32-5-686 suggests:
pn grub | lilo <none> (no description available)
pn linux-doc-2.6.32 <none> (no description available)

Versions of packages linux-image-2.6.32-5-686 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
pn firmware-iwlwifi <none> (no description available)
pn firmware-linux <none> (no description available)
pn firmware-linux-nonfree <none> (no description available)
pn firmware-qlogic <none> (no description available)
pn firmware-ralink <none> (no description available)
pn xen-hypervisor <none> (no description available)

-- debconf information:
shared/kernel-image/really-run-bootloader: true
linux-image-2.6.32-5-686/prerm/removing-running-kernel-2.6.32-5-686: true
linux-image-2.6.32-5-686/prerm/would-invalidate-boot-loader-2.6.32-5-686: true
linux-image-2.6.32-5-686/postinst/depmod-error-initrd-2.6.32-5-686: false
linux-image-2.6.32-5-686/postinst/bootloader-test-error-2.6.32-5-686:
linux-image-2.6.32-5-686/postinst/bootloader-error-2.6.32-5-686:
linux-image-2.6.32-5-686/postinst/missing-firmware-2.6.32-5-686:



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Archive: 20100612101101.1347.46206.reportbug@filmdose">http ://lists.debian.org/20100612101101.1347.46206.reportbug@filmdose
 
Old 07-13-2010, 09:15 PM
Moritz Muehlenhoff
 
Default Bug#585608: linux-image-2.6.32-5-686: SAA7146: BUG: unable to handle kernel NULL pointer dereference at (null)

On Sat, Jun 12, 2010 at 12:11:01PM +0200, Matthias Pitzl wrote:
> Package: linux-2.6
> Version: 2.6.32-15
> Severity: important
>
>
> When doing a channel scan with my Haupauge WinTV Nexus-S rev 2.3 card, i
> get an kernel oops. Seems to be a general problem not only with this
> kernel version. Unfortunately i only have a trace for 2.6.43-rc7 but
> it's the same trace as i get with kernel versions 2.6.32-3 and 2.6.32-5:
>
> [ 773.280361] IP: [<f825a7ba>] saa7146_buffer_next+0x5e/0x1ed
> [saa7146_vv]
> [ 773.280361] *pde = 00000000
> [ 773.280361] Oops: 0000 [#1] SMP
> [ 773.280361] last sysfs file: /sys/module/nfsd/initstate
> [ 773.280361] Modules linked in: nfsd exportfs nfs lockd nfs_acl
> auth_rpcgss sunrpc f71882fg coretemp loop lnbp21 stv0299 dvb_ttpci
> snd_hda_codec_realtek dvb_core saa7146_vv videodev v4l1_compat
> snd_hda_intel saa7146 snd_hda_codec videobuf_dma_sg snd_hwdep
> videobuf_core snd_pcm i2c_i801 ttpci_eeprom psmouse snd_timer intel_agp
> evdev pcspkr snd i2c_core serio_raw agpgart video processor rng_core
> soundcore button output snd_page_alloc usb_storage uhci_hcd ehci_hcd
> thermal sd_mod crc_t10dif thermal_sys usbcore nls_base e1000e [last
> unloaded: scsi_wait_scan]
> [ 773.280361]
> [ 773.280361] Pid: 0, comm: swapper Not tainted 2.6.34-rc7 #7
> A9830IMS/A9830IMS
> [ 773.280361] EIP: 0060:[<f825a7ba>] EFLAGS: 00010246 CPU: 0
> [ 773.280361] EIP is at saa7146_buffer_next+0x5e/0x1ed [saa7146_vv]
> [ 773.280361] EAX: f68b3008 EBX: f733d900 ECX: 00000001 EDX: 00000002
> [ 773.280361] ESI: ffffffd4 EDI: f68b3000 EBP: 00000000 ESP: c135fefc
> [ 773.280361] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
> [ 773.280361] Process swapper (pid: 0, ti=c135e000 task=c138cb60
> task.ti=c135e000)
> [ 773.280361] Stack:
> [ 773.280361] f68b3000 f733d900 c13640bc 0000000a f825e5f6 f733d900
> fff7fbf7 f825a759
> [ 773.280361] <0> f733d900 ffffffff f812bdfc fff7fbf7 f6a1e240 00000000
> c106793a 00000000
> [ 773.280361] <0> 00000000 c1364080 0000000a c13640bc c135ff80 c1069072
> 0000000a 0000000a
> [ 773.280361] Call Trace:
> [ 773.280361] [<f825e5f6>] ? vbi_irq_done+0x99/0x9f [saa7146_vv]
> [ 773.280361] [<f825a759>] ? vv_callback+0x10f/0x112 [saa7146_vv]
> [ 773.280361] [<f812bdfc>] ? interrupt_hw+0x9f/0x1a8 [saa7146]
> [ 773.280361] [<c106793a>] ? handle_IRQ_event+0x49/0xe7
> [ 773.280361] [<c1069072>] ? handle_level_irq+0x55/0x9e
> [ 773.280361] [<c10044cb>] ? handle_irq+0x17/0x1c
> [ 773.280361] [<c1003da9>] ? do_IRQ+0x38/0x8e
> [ 773.280361] [<c1002d30>] ? common_interrupt+0x30/0x38
> [ 773.280361] [<c10086e6>] ? mwait_idle+0x59/0x5e
> [ 773.280361] [<c1001ae7>] ? cpu_idle+0x91/0xaa
> [ 773.280361] [<c13b9881>] ? start_kernel+0x31c/0x321
> [ 773.280361] Code: 50 fc 25 f8 e8 9d 0e 01 c9 83 c4 1c 8b 43 44 89 c2
> c1 fa 08 38 c2 75 04 0f 0b eb fe 8b 77 08 8d 47 08 39 c6 74 6b 83 ee 2c
> 31 ed <8b> 4e 2c 8b 56 30 89 51 04 89 0a c7 46 2c 00 01 10 00 c7 46 30
> [ 773.280361] EIP: [<f825a7ba>] saa7146_buffer_next+0x5e/0x1ed
> [saa7146_vv] SS:ESP 0068:c135fefc
> [ 773.280361] CR2: 0000000000000000
> [ 773.985900] ---[ end trace ec43c18100749f7e ]---
> [ 773.999765] Kernel panic - not syncing: Fatal exception in interrupt
> [ 774.018832] Pid: 0, comm: swapper Tainted: G D 2.6.34-rc7 #7
> [ 774.037908] Call Trace:
> [ 774.045272] [<c126b5c4>] ? panic+0x37/0xa8
> [ 774.057844] [<c10050e0>] ? oops_end+0x88/0x93
> [ 774.071195] [<c1019bfd>] ? no_context+0x10d/0x116
> [ 774.085581] [<c1019f62>] ? do_page_fault+0x0/0x242
> [ 774.100232] [<c1019d04>] ? bad_area_nosemaphore+0xa/0xc
> [ 774.116194] [<c126d6c3>] ? error_code+0x73/0x78
> [ 774.130077] [<f825a7ba>] ? saa7146_buffer_next+0x5e/0x1ed
> [saa7146_vv]
> [ 774.149941] [<f825e5f6>] ? vbi_irq_done+0x99/0x9f [saa7146_vv]
> [ 774.167718] [<f825a759>] ? vv_callback+0x10f/0x112 [saa7146_vv]
> [ 774.185762] [<f812bdfc>] ? interrupt_hw+0x9f/0x1a8 [saa7146]
> [ 774.203023] [<c106793a>] ? handle_IRQ_event+0x49/0xe7
> [ 774.218459] [<c1069072>] ? handle_level_irq+0x55/0x9e
> [ 774.233890] [<c10044cb>] ? handle_irq+0x17/0x1c
> [ 774.247758] [<c1003da9>] ? do_IRQ+0x38/0x8e
> [ 774.260590] [<c1002d30>] ? common_interrupt+0x30/0x38
> [ 774.276023] [<c10086e6>] ? mwait_idle+0x59/0x5e
> [ 774.289890] [<c1001ae7>] ? cpu_idle+0x91/0xaa
> [ 774.303243] [<c13b9881>] ? start_kernel+0x31c/0x321
>
> This can be easily reproduced using the following command:
> scan -v /usr/share/dvb/dvb-s/Astra-19.2E
>
> The crash happens after a short random time.
>
> I tried also the different firmware versions for ths DVB-S card but this
> doesn't seem to make any difference. I already sent a bug report to
> linux-media@vger.kernel.org.

Please report this bug upstream at the upstream bugzilla
(http://bugzilla.kernel.org), so that it can be investigated/
fixed upstream and backported for Squeeze. (Product: v4l-dvb)

Once done, please add the bug number to this bug.

(We're asking you to file the bug report yourself, since the
kernel.org developers will have specific inquiries to your
hardware/setup)

Cheers,
Moritz



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Archive: 20100713211533.GA2844@galadriel.inutil.org">http://lists.debian.org/20100713211533.GA2844@galadriel.inutil.org
 
Old 07-14-2010, 06:24 AM
Silamael
 
Default Bug#585608: linux-image-2.6.32-5-686: SAA7146: BUG: unable to handle kernel NULL pointer dereference at (null)

Hi Moritz,

Filed the bug as you suggested:
https://bugzilla.kernel.org/show_bug.cgi?id=16385

-- Matthias

On 07/13/2010 11:15 PM, Moritz Muehlenhoff wrote:
> On Sat, Jun 12, 2010 at 12:11:01PM +0200, Matthias Pitzl wrote:
>> Package: linux-2.6
>> Version: 2.6.32-15
>> Severity: important
>>
>>
>> When doing a channel scan with my Haupauge WinTV Nexus-S rev 2.3 card, i
>> get an kernel oops. Seems to be a general problem not only with this
>> kernel version. Unfortunately i only have a trace for 2.6.43-rc7 but
>> it's the same trace as i get with kernel versions 2.6.32-3 and 2.6.32-5:
>>
>> [ 773.280361] IP: [<f825a7ba>] saa7146_buffer_next+0x5e/0x1ed
>> [saa7146_vv]
>> [ 773.280361] *pde = 00000000
>> [ 773.280361] Oops: 0000 [#1] SMP
>> [ 773.280361] last sysfs file: /sys/module/nfsd/initstate
>> [ 773.280361] Modules linked in: nfsd exportfs nfs lockd nfs_acl
>> auth_rpcgss sunrpc f71882fg coretemp loop lnbp21 stv0299 dvb_ttpci
>> snd_hda_codec_realtek dvb_core saa7146_vv videodev v4l1_compat
>> snd_hda_intel saa7146 snd_hda_codec videobuf_dma_sg snd_hwdep
>> videobuf_core snd_pcm i2c_i801 ttpci_eeprom psmouse snd_timer intel_agp
>> evdev pcspkr snd i2c_core serio_raw agpgart video processor rng_core
>> soundcore button output snd_page_alloc usb_storage uhci_hcd ehci_hcd
>> thermal sd_mod crc_t10dif thermal_sys usbcore nls_base e1000e [last
>> unloaded: scsi_wait_scan]
>> [ 773.280361]
>> [ 773.280361] Pid: 0, comm: swapper Not tainted 2.6.34-rc7 #7
>> A9830IMS/A9830IMS
>> [ 773.280361] EIP: 0060:[<f825a7ba>] EFLAGS: 00010246 CPU: 0
>> [ 773.280361] EIP is at saa7146_buffer_next+0x5e/0x1ed [saa7146_vv]
>> [ 773.280361] EAX: f68b3008 EBX: f733d900 ECX: 00000001 EDX: 00000002
>> [ 773.280361] ESI: ffffffd4 EDI: f68b3000 EBP: 00000000 ESP: c135fefc
>> [ 773.280361] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
>> [ 773.280361] Process swapper (pid: 0, ti=c135e000 task=c138cb60
>> task.ti=c135e000)
>> [ 773.280361] Stack:
>> [ 773.280361] f68b3000 f733d900 c13640bc 0000000a f825e5f6 f733d900
>> fff7fbf7 f825a759
>> [ 773.280361] <0> f733d900 ffffffff f812bdfc fff7fbf7 f6a1e240 00000000
>> c106793a 00000000
>> [ 773.280361] <0> 00000000 c1364080 0000000a c13640bc c135ff80 c1069072
>> 0000000a 0000000a
>> [ 773.280361] Call Trace:
>> [ 773.280361] [<f825e5f6>] ? vbi_irq_done+0x99/0x9f [saa7146_vv]
>> [ 773.280361] [<f825a759>] ? vv_callback+0x10f/0x112 [saa7146_vv]
>> [ 773.280361] [<f812bdfc>] ? interrupt_hw+0x9f/0x1a8 [saa7146]
>> [ 773.280361] [<c106793a>] ? handle_IRQ_event+0x49/0xe7
>> [ 773.280361] [<c1069072>] ? handle_level_irq+0x55/0x9e
>> [ 773.280361] [<c10044cb>] ? handle_irq+0x17/0x1c
>> [ 773.280361] [<c1003da9>] ? do_IRQ+0x38/0x8e
>> [ 773.280361] [<c1002d30>] ? common_interrupt+0x30/0x38
>> [ 773.280361] [<c10086e6>] ? mwait_idle+0x59/0x5e
>> [ 773.280361] [<c1001ae7>] ? cpu_idle+0x91/0xaa
>> [ 773.280361] [<c13b9881>] ? start_kernel+0x31c/0x321
>> [ 773.280361] Code: 50 fc 25 f8 e8 9d 0e 01 c9 83 c4 1c 8b 43 44 89 c2
>> c1 fa 08 38 c2 75 04 0f 0b eb fe 8b 77 08 8d 47 08 39 c6 74 6b 83 ee 2c
>> 31 ed <8b> 4e 2c 8b 56 30 89 51 04 89 0a c7 46 2c 00 01 10 00 c7 46 30
>> [ 773.280361] EIP: [<f825a7ba>] saa7146_buffer_next+0x5e/0x1ed
>> [saa7146_vv] SS:ESP 0068:c135fefc
>> [ 773.280361] CR2: 0000000000000000
>> [ 773.985900] ---[ end trace ec43c18100749f7e ]---
>> [ 773.999765] Kernel panic - not syncing: Fatal exception in interrupt
>> [ 774.018832] Pid: 0, comm: swapper Tainted: G D 2.6.34-rc7 #7
>> [ 774.037908] Call Trace:
>> [ 774.045272] [<c126b5c4>] ? panic+0x37/0xa8
>> [ 774.057844] [<c10050e0>] ? oops_end+0x88/0x93
>> [ 774.071195] [<c1019bfd>] ? no_context+0x10d/0x116
>> [ 774.085581] [<c1019f62>] ? do_page_fault+0x0/0x242
>> [ 774.100232] [<c1019d04>] ? bad_area_nosemaphore+0xa/0xc
>> [ 774.116194] [<c126d6c3>] ? error_code+0x73/0x78
>> [ 774.130077] [<f825a7ba>] ? saa7146_buffer_next+0x5e/0x1ed
>> [saa7146_vv]
>> [ 774.149941] [<f825e5f6>] ? vbi_irq_done+0x99/0x9f [saa7146_vv]
>> [ 774.167718] [<f825a759>] ? vv_callback+0x10f/0x112 [saa7146_vv]
>> [ 774.185762] [<f812bdfc>] ? interrupt_hw+0x9f/0x1a8 [saa7146]
>> [ 774.203023] [<c106793a>] ? handle_IRQ_event+0x49/0xe7
>> [ 774.218459] [<c1069072>] ? handle_level_irq+0x55/0x9e
>> [ 774.233890] [<c10044cb>] ? handle_irq+0x17/0x1c
>> [ 774.247758] [<c1003da9>] ? do_IRQ+0x38/0x8e
>> [ 774.260590] [<c1002d30>] ? common_interrupt+0x30/0x38
>> [ 774.276023] [<c10086e6>] ? mwait_idle+0x59/0x5e
>> [ 774.289890] [<c1001ae7>] ? cpu_idle+0x91/0xaa
>> [ 774.303243] [<c13b9881>] ? start_kernel+0x31c/0x321
>>
>> This can be easily reproduced using the following command:
>> scan -v /usr/share/dvb/dvb-s/Astra-19.2E
>>
>> The crash happens after a short random time.
>>
>> I tried also the different firmware versions for ths DVB-S card but this
>> doesn't seem to make any difference. I already sent a bug report to
>> linux-media@vger.kernel.org.
>
> Please report this bug upstream at the upstream bugzilla
> (http://bugzilla.kernel.org), so that it can be investigated/
> fixed upstream and backported for Squeeze. (Product: v4l-dvb)
>
> Once done, please add the bug number to this bug.
>
> (We're asking you to file the bug report yourself, since the
> kernel.org developers will have specific inquiries to your
> hardware/setup)
>
> Cheers,
> Moritz



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