On Tuesday 29 January 2008, Manu Abraham wrote: > Stefan Lucke wrote: > > Hi, > > > > with current mulproto driver from http://www.jusst.de/hg/multiproto/ I get > > a reproducable segfault upon start of vdr :-( . > > > > [ 248.480524] stb0899_i2c_gate_ctrl: Enabling I2C Repeater ... > > [ 248.480526] stb0899_write_regs [0xf12a]: c8 > > [ 248.480790] _stb0899_read_reg: Reg=[0xf12a], data=c8 > > [ 248.480901] _stb0899_read_reg: Reg=[0xf12a], data=c8 > > [ 248.486417] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000020 > > [ 248.486422] printing eip: > > [ 248.486424] f8a3b571 > > [ 248.486425] *pde = 00000000 > > [ 248.486428] Oops: 0000 [#1] > > [ 248.486430] PREEMPT SMP > Kernel OOPS does not happen when using: hg clone -r 7199 http://www.jusst.de/hg/multiproto/ > Is the bug reproducible if PREEMPT is turned OFF ? > YES. Actual preemption model was: Preemptible Kernel (Low-Latency Desktop) Changed to: No Forced Preemption (Server) Jan 30 00:42:02 jarada [ 116.391047] _stb0899_read_reg: Reg=[0xf12a], data=c8 Jan 30 00:42:02 jarada [ 116.391168] _stb0899_read_reg: Reg=[0xf12a], data=c8 Jan 30 00:42:02 jarada vdr: [7826] found 2 video devices Jan 30 00:42:02 jarada vdr: [7831] tuner on device 2 thread started (pid=7826, tid=7831) Jan 30 00:42:02 jarada vdr: [7832] section handler thread started (pid=7826, tid=7832) Jan 30 00:42:02 jarada vdr: [7826] initializing plugin: softdevice (0.4.0): A software emulated MPEG2 device Jan 30 00:42:02 jarada [ 116.396618] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000020 Jan 30 00:42:02 jarada [ 116.396624] printing eip: Jan 30 00:42:02 jarada [ 116.396625] f9a8f5a1 Jan 30 00:42:02 jarada [ 116.396626] *pde = 00000000 Jan 30 00:42:02 jarada [ 116.396629] Oops: 0000 [#1] Jan 30 00:42:02 jarada [ 116.396630] SMP Jan 30 00:42:02 jarada [ 116.396633] Modules linked in: radeon drm cpufreq_userspace rfcomm l2cap bluetooth cpufreq_ondemand fbcon tileblit font bitblit softcursor budget_ci lnbp21 firmware_class budget_core saa7146 ttpci_eeprom ir_common stb6100 stb0899 cinergyT2 dvb_core k8temp hwmon snd_usb_audio snd_pcm snd_timer snd_page_alloc snd_usb_lib snd_rawmidi snd_seq_device snd_hwdep snd amd64_agp agpgart parport_pc parport radeonfb fb_ddc cfbcopyarea cfbimgblt cfbfillrect evdev i2c_nforce2 ftdi_sio usbserial scsi_wait_scan sbp2 ohci1394 ieee1394 Jan 30 00:42:02 jarada [ 116.396661] CPU: 1 Jan 30 00:42:02 jarada [ 116.396662] EIP: 0060:[<f9a8f5a1>] Not tainted VLI Jan 30 00:42:02 jarada [ 116.396663] EFLAGS: 00210282 (2.6.23.13-np #6) Jan 30 00:42:02 jarada [ 116.396669] EIP is at budget_read_fe_status+0x21/0x90 [budget_core] Jan 30 00:42:02 jarada [ 116.396672] eax: 00000000 ebx: 80046f45 ecx: f9a8f580 edx: f1f05ec4 Jan 30 00:42:02 jarada [ 116.396674] esi: f7c50008 edi: ffffffea ebp: f1f05ec4 esp: f1f05a54 Jan 30 00:42:02 jarada [ 116.396677] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Jan 30 00:42:02 jarada [ 116.396679] Process vdr (pid: 7831, ti=f1f04000 task=f7f35000 task.ti=f1f04000) Jan 30 00:42:02 jarada [ 116.396681] Stack: 80046f45 f1c53940 f7c50008 fffffe00 f996142a 00000000 00000000 00000000 Jan 30 00:42:02 jarada [ 116.396686] 00000000 00000000 dfde1000 000081a4 000007c8 479fb669 f7c50008 dfde1a60 Jan 30 00:42:02 jarada [ 116.396691] 00000000 00010000 00000008 00000000 00000000 00327abb 00000000 00000000 Jan 30 00:42:02 jarada [ 116.396695] Call Trace: Jan 30 00:42:02 jarada [ 116.396699] [<f996142a>] dvb_frontend_ioctl+0x1fa/0x1230 [dvb_core] Jan 30 00:42:02 jarada [ 116.396721] [<c0128439>] update_curr+0x139/0x150 Jan 30 00:42:02 jarada [ 116.396730] [<c0127d46>] update_stats_wait_end+0xa6/0xe0 Jan 30 00:42:02 jarada [ 116.396735] [<c01072ba>] __switch_to+0xaa/0x160 Jan 30 00:42:02 jarada [ 116.396740] [<c0450ee8>] schedule+0x1c8/0x5e0 Jan 30 00:42:02 jarada [ 116.396747] [<c0138a27>] lock_timer_base+0x27/0x60 Jan 30 00:42:02 jarada [ 116.396751] [<c0138aa7>] try_to_del_timer_sync+0x47/0x50 Jan 30 00:42:02 jarada [ 116.396755] [<c0138abe>] del_timer_sync+0xe/0x20 Jan 30 00:42:02 jarada [ 116.396759] [<c01431aa>] remove_wait_queue+0x1a/0x50 Jan 30 00:42:02 jarada [ 116.396763] [<c019a36e>] free_poll_entry+0xe/0x20 Jan 30 00:42:02 jarada [ 116.396767] [<c019a3a0>] poll_freewait+0x20/0x60 Jan 30 00:42:02 jarada [ 116.396771] [<c019a6d7>] do_sys_poll+0x2f7/0x3e0 Jan 30 00:42:02 jarada [ 116.396776] [<c019b1b0>] __pollwait+0x0/0x100 Jan 30 00:42:02 jarada [ 116.396780] [<c012a1c0>] default_wake_function+0x0/0x10 Jan 30 00:42:02 jarada [ 116.396787] [<c0128efa>] task_rq_lock+0x4a/0x80 Jan 30 00:42:02 jarada [ 116.396791] [<c0129e71>] try_to_wake_up+0x41/0x390 Jan 30 00:42:02 jarada [ 116.396800] [<c01279a9>] __wake_up_common+0x39/0x60 Jan 30 00:42:02 jarada [ 116.396806] [<c0128d68>] __wake_up+0x38/0x50 Jan 30 00:42:02 jarada [ 116.396811] [<c03bf8e8>] sock_def_readable+0x78/0x80 Jan 30 00:42:02 jarada [ 116.396815] [<c041ce4b>] unix_stream_sendmsg+0x19b/0x340 Jan 30 00:42:02 jarada [ 116.396823] [<c03bba5e>] sock_sendmsg+0xce/0x100 Jan 30 00:42:02 jarada [ 116.396831] [<c0142f90>] autoremove_wake_function+0x0/0x50 Jan 30 00:42:02 jarada [ 116.396835] [<c01976ea>] __link_path_walk+0xcea/0xd50 Jan 30 00:42:02 jarada [ 116.396840] [<c0108ccb>] common_interrupt+0x23/0x28 Jan 30 00:42:02 jarada [ 116.396845] [<c01a355b>] mntput_no_expire+0x1b/0x70 Jan 30 00:42:02 jarada [ 116.396854] [<f9959124>] dvb_usercopy+0xa4/0x160 [dvb_core] Jan 30 00:42:02 jarada [ 116.396864] [<c0191089>] cp_new_stat64+0xf9/0x110 Jan 30 00:42:02 jarada [ 116.396874] [<f995922d>] dvb_generic_ioctl+0x4d/0x60 [dvb_core] Jan 30 00:42:02 jarada [ 116.396881] [<f9961230>] dvb_frontend_ioctl+0x0/0x1230 [dvb_core] Jan 30 00:42:02 jarada [ 116.396889] [<c0199af8>] do_ioctl+0x78/0x90 Jan 30 00:42:02 jarada [ 116.396893] [<c0199b6c>] vfs_ioctl+0x5c/0x290 Jan 30 00:42:02 jarada [ 116.396897] [<c0199ddd>] sys_ioctl+0x3d/0x70 Jan 30 00:42:02 jarada [ 116.396901] [<c0108266>] sysenter_past_esp+0x6b/0xa1 Jan 30 00:42:02 jarada [ 116.396909] ======================= Jan 30 00:42:02 jarada [ 116.396910] Code: e8 95 0d 6a c6 e9 1d ff ff ff 83 ec 10 89 74 24 04 89 7c 24 08 89 c6 89 6c 24 0c 89 1c 24 89 d5 8b 80 cc 01 00 00 bf ea ff ff ff <8b> 58 20 8b 8b 80 05 00 00 85 c9 74 42 89 f0 ff d1 85 c0 89 c7 Jan 30 00:42:02 jarada [ 116.396931] EIP: [<f9a8f5a1>] budget_read_fe_status+0x21/0x90 [budget_core] SS:ESP 0068:f1f05a54 Jan 30 00:42:02 jarada vdr: [7826] [XvVideoOut]: patch version (2007-12-25) -- Stefan Lucke _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
