On Wednesday 20 October 2010, 14:16:03 Andy Walls wrote:

On Wed, 2010-10-20 at 12:31 +0200, Hans-Peter Jansen wrote:

...

Hi Mauro,

since you got your fingers dirty with ir, I would like to direct this issue towards you.

Unfortunately, unloading all the dvb drivers is not possible, because unloading cx8802 leads to this oops:

Welcome to openSUSE 11.1 - Kernel 2.6.34.7-4-pae (ttyS0) [111047.940641] BUG: unable to handle kernel paging request at 313a3030 [111047.953710] IP: [<c03654fe>] sysfs_remove_group+0x7e/0xd0 [111047.964838] *pdpt = 0000000029f53001 *pde = 0000000000000000 [111047.976687] Oops: 0000 [#1] SMP [111047.983453] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map [111047.999559] Modules linked in: ip6t_LOG ipt_MASQUERADE xt_pkttype xt_TCPMSS xt_tcpudp ipt_LOG xt_limit iptable_nat ] [111048.204691] [111048.207843] Pid: 10029, comm: rmmod Not tainted 2.6.34.7-4-pae #1 P7F-E/System Product Name [111048.224918] EIP: 0060:[<c03654fe>] EFLAGS: 00210206 CPU: 0 [111048.236201] EIP is at sysfs_remove_group+0x7e/0xd0 [111048.246007] EAX: ef4ff008 EBX: 313a3030 ECX: f0600000 EDX: 00000000 [111048.258879] ESI: 00000000 EDI: efb7e71c EBP: ef4ff008 ESP: e3ee7e64 [111048.271716] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [111048.282668] Process rmmod (pid: 10029, ti=e3ee6000 task=eaf00e00 task.ti=e3ee6000) [111048.298133] Stack: [111048.302319] f02cabe0 00000041 ef5208c0 ef49ac00 00200286 efb7e700 ef3f0000 00000000 [111048.318132] <0> ef329800 f8f84932 efb7e700 ef3f0000 f8f84044 00000000 f8ffffff f015f1c0 [111048.334811] <0> ef329800 f917c655 00000000 f8000000 f9178dd9 01000000 00000000 f8ffffff [111048.351939] Call Trace: [111048.357213] [<f8f84932>] ir_unregister_class+0x32/0x60 [ir_core] [111048.369821] [<f8f84044>] ir_input_unregister+0x44/0x90 [ir_core] [111048.382338] [<f917c655>] cx88_ir_fini+0x25/0x50 [cx88xx] [111048.393437] [<f9178dd9>] cx88_core_put+0xb9/0x140 [cx88xx] [111048.404834] [<f91e8795>] cx8802_remove+0x82/0x169 [cx8802] [111048.416319] [<c041d966>] pci_device_remove+0x16/0x40 [111048.426610] [<c04b214d>] __device_release_driver+0x6d/0xd0 [111048.437993] [<c04b222f>] driver_detach+0x7f/0x90 [111048.447872] [<c04b11fa>] bus_remove_driver+0x7a/0x100 [111048.458687] [<c041db6e>] pci_unregister_driver+0x2e/0x80 [111048.469658] [<c0279669>] sys_delete_module+0x179/0x240 [111048.480262] [<c020320c>] sysenter_do_call+0x12/0x22 [111048.490357] [<ffffe424>] 0xffffe424 [111048.497680] Code: f0 ff 0e 0f 94 c0 84 c0 75 0b 83 c4 14 5b 5e 5f 5d c3 8d 76 00 83 c4 14 89 f0 5b 5e 5f 5d e9 ca e

These code bytes are truncated; there are only 32 here. There are supposed to be 64 of them, with the Oops-ing instruction being around the 48th byte.

Please review your logs and provide the full Ooops.

...

[111048.537852] EIP: [<c03654fe>] sysfs_remove_group+0x7e/0xd0 SS:ESP 0068:e3ee7e64 [111048.552782] CR2: 00000000313a3030 [111048.559854] ---[ end trace d7231a8e672c4adc ]---

Any ideas, what's going wrong here?

I don't. Mauro might since he knows the code better. I just decode Oops'es every once in a while.

Sorry, Andy, that one was catched with a (non line wrapping) serial console. Here's the full Oops: Oct 20 04:15:12 tyrex kernel: [111047.814534] cx88/2: unregistering cx8802 driver, type: dvb access: shared Oct 20 04:15:12 tyrex kernel: [111047.814543] cx88[0]/2: subsystem: 0070:6906, board: Hauppauge WinTV-HVR4000(Lite) DVB-S/S2 [card=69] Oct 20 04:15:12 tyrex kernel: [111047.815254] cx88[1]/2: subsystem: 0070:6906, board: Hauppauge WinTV-HVR4000(Lite) DVB-S/S2 [card=69] Oct 20 04:15:12 tyrex kernel: [111047.819013] cx88_audio 0000:07:02.1: PCI INT A disabled Oct 20 04:15:12 tyrex kernel: [111047.819150] cx88_audio 0000:07:01.1: PCI INT A disabled Oct 20 04:15:12 tyrex kernel: [111047.824359] cx8800 0000:07:02.0: PCI INT A disabled Oct 20 04:15:12 tyrex kernel: [111047.824413] cx8800 0000:07:01.0: PCI INT A disabled Oct 20 04:15:12 tyrex kernel: [111047.826168] cx88-mpeg driver manager 0000:07:02.2: PCI INT A disabled Oct 20 04:15:13 tyrex kernel: [111047.940606] cx88-mpeg driver manager 0000:07:01.2: PCI INT A disabled Oct 20 04:15:13 tyrex kernel: [111047.940641] BUG: unable to handle kernel paging request at 313a3030 Oct 20 04:15:13 tyrex kernel: [111047.953710] IP: [<c03654fe>] sysfs_remove_group+0x7e/0xd0 Oct 20 04:15:13 tyrex kernel: [111047.964838] *pdpt = 0000000029f53001 *pde = 0000000000000000 Oct 20 04:15:13 tyrex kernel: [111047.976687] Oops: 0000 [#1] SMP Oct 20 04:15:13 tyrex kernel: [111047.983453] last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Oct 20 04:15:13 tyrex kernel: [111047.999559] Modules linked in: ip6t_LOG ipt_MASQUERADE xt_pkttype xt_TCPMSS xt_tcpudp ipt_LOG xt_limi t iptable_nat nf_nat tun nfsd autofs4 af_packet nfs lockd fscache nfs_acl auth_rpcgss sunrpc cpufreq_conservative cpufreq_userspace cpu freq_powersave acpi_cpufreq speedstep_lib ip6t_REJECT nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_physdev xt_state mperf ip table_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables ip6table_filte r ip6_tables x_tables bridge stp llc fuse aufs loop dm_mod isl6421 cx24116 videobuf_dvb tuner lnbp21 stv0299 cx8802(-) snd_hda_intel cx 88xx dvb_ttpci snd_hda_codec dvb_core ir_common saa7146_vv v4l2_common snd_hwdep i2c_algo_bit saa7146 tveeprom snd_pcm videodev ir_core tpm_tis v4l1_compat snd_timer videobuf_dma_sg snd tpm pl2303 soundcore videobuf_core ttpci_eeprom button usbserial tpm_bios sr_mod pcs pkr i2c_i801 btcx_risc cdrom e1000e snd_page_alloc iTCO_wdt iTCO_vendor_support k Oct 20 04:15:13 tyrex kernel: vm_intel sg kvm usbhid ehci_hcd usbcore edd xfs exportfs fan thermal processor thermal_sys sd_mod ata_pii x libata arcmsr scsi_mod [last unloaded: cx8800] Oct 20 04:15:13 tyrex kernel: [111048.204691] Oct 20 04:15:13 tyrex kernel: [111048.207843] Pid: 10029, comm: rmmod Not tainted 2.6.34.7-4-pae #1 P7F-E/System Product Name Oct 20 04:15:13 tyrex kernel: [111048.224918] EIP: 0060:[<c03654fe>] EFLAGS: 00210206 CPU: 0 Oct 20 04:15:13 tyrex kernel: [111048.236201] EIP is at sysfs_remove_group+0x7e/0xd0 Oct 20 04:15:13 tyrex kernel: [111048.246007] EAX: ef4ff008 EBX: 313a3030 ECX: f0600000 EDX: 00000000 Oct 20 04:15:13 tyrex kernel: [111048.258879] ESI: 00000000 EDI: efb7e71c EBP: ef4ff008 ESP: e3ee7e64 Oct 20 04:15:13 tyrex kernel: [111048.271716] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Oct 20 04:15:13 tyrex kernel: [111048.282668] Process rmmod (pid: 10029, ti=e3ee6000 task=eaf00e00 task.ti=e3ee6000) Oct 20 04:15:13 tyrex kernel: [111048.298133] Stack: Oct 20 04:15:13 tyrex kernel: [111048.302319] f02cabe0 00000041 ef5208c0 ef49ac00 00200286 efb7e700 ef3f0000 00000000 Oct 20 04:15:13 tyrex kernel: [111048.318132] <0> ef329800 f8f84932 efb7e700 ef3f0000 f8f84044 00000000 f8ffffff f015f1c0 Oct 20 04:15:13 tyrex kernel: [111048.334811] <0> ef329800 f917c655 00000000 f8000000 f9178dd9 01000000 00000000 f8ffffff Oct 20 04:15:13 tyrex kernel: [111048.351939] Call Trace: Oct 20 04:15:13 tyrex kernel: [111048.357213] [<f8f84932>] ir_unregister_class+0x32/0x60 [ir_core] Oct 20 04:15:13 tyrex kernel: [111048.369821] [<f8f84044>] ir_input_unregister+0x44/0x90 [ir_core] Oct 20 04:15:13 tyrex kernel: [111048.382338] [<f917c655>] cx88_ir_fini+0x25/0x50 [cx88xx] Oct 20 04:15:13 tyrex kernel: [111048.393437] [<f9178dd9>] cx88_core_put+0xb9/0x140 [cx88xx] Oct 20 04:15:13 tyrex kernel: [111048.404834] [<f91e8795>] cx8802_remove+0x82/0x169 [cx8802] Oct 20 04:15:13 tyrex kernel: [111048.416319] [<c041d966>] pci_device_remove+0x16/0x40 Oct 20 04:15:13 tyrex kernel: [111048.426610] [<c04b214d>] __device_release_driver+0x6d/0xd0 Oct 20 04:15:13 tyrex kernel: [111048.437993] [<c04b222f>] driver_detach+0x7f/0x90 Oct 20 04:15:13 tyrex kernel: [111048.447872] [<c04b11fa>] bus_remove_driver+0x7a/0x100 Oct 20 04:15:13 tyrex kernel: [111048.458687] [<c041db6e>] pci_unregister_driver+0x2e/0x80 Oct 20 04:15:13 tyrex kernel: [111048.469658] [<c0279669>] sys_delete_module+0x179/0x240 Oct 20 04:15:13 tyrex kernel: [111048.480262] [<c020320c>] sysenter_do_call+0x12/0x22 Oct 20 04:15:13 tyrex kernel: [111048.490357] [<ffffe424>] 0xffffe424 Oct 20 04:15:13 tyrex kernel: [111048.497680] Code: f0 ff 0e 0f 94 c0 84 c0 75 0b 83 c4 14 5b 5e 5f 5d c3 8d 76 00 83 c4 14 89 f0 5b 5e 5f 5d e9 ca e6 ff ff 66 90 31 f6 85 db 74 a3 <8b> 03 85 c0 74 07 f0 ff 03 89 de eb 96 ba 9d 00 00 00 b8 64 83 Oct 20 04:15:13 tyrex kernel: [111048.537852] EIP: [<c03654fe>] sysfs_remove_group+0x7e/0xd0 SS:ESP 0068:e3ee7e64 Oct 20 04:15:13 tyrex kernel: [111048.552782] CR2: 00000000313a3030 Oct 20 04:15:13 tyrex kernel: [111048.559854] ---[ end trace d7231a8e672c4adc ]--- Oct 20 04:15:13 tyrex kernel: [111048.574840] saa7146: unregister extension 'dvb'. BTW, is it better to keep the overlong Code: line intact?

Regards, Andy

Thanks for your participation, Pete -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org

On Wednesday 20 October 2010, 14:26:20 Stefan Seyfried wrote:

On Wed, 20 Oct 2010 12:31:23 +0200

"Hans-Peter Jansen" wrote:

...

Welcome to openSUSE 11.1 - Kernel 2.6.34.7-4-pae (ttyS0)

Any ideas, what's going wrong here?

Your kernel is ancient. Please try reproducing with a recent kernel from the Kernel:HEAD repo. If it still happens, let's debug it. If it doesn't, create a bugreport against the SUSE kernel and hope that they backport the fix.

Stefan is right, .36-rc8 doesn't suffer from this anymore. If somebody could point me to a patch, that might have fixed it, I would happily test it. Now to get the usual suspects work with this kernel: aufs2, vmware, nvidia. Ohh, well. Thanks, Pete -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org