Hi again. Found the mistake it was just a part of the pdo configuration it works now. Thank you all and have a nice day.
Best regards Cabinplant A/S Gustav Nicolay Meilby Nobel Automation Engineer 5683 Haarby Denmark T: E-mail: mailto:g...@cabinplant.com Internet: http://www.cabinplant.com Meet us at: Exhibition list: http://www.cabinplant.com/exhibitions Cabinplant register the personal data found in the emails we have received. You can read more about our privacy policy https://www.cabinplant.com/about-us/privacy-and-cookie-statement/. -----Original Message----- From: Richard Hacker [mailto:h...@igh.de] Sent: 23. april 2020 11:45 To: Gustav Nicolay Meilby Nobel; etherlab-users@etherlab.org Subject: Re: [etherlab-users] Beginner: kernel Oops fault after modification of example "mini.c" Hi Gustav You do have a slave attached, do you? I sometimes ran into segfaults like this with the ccat driver when there are no attached slaves. Mit freundlichem Gruß Richard Hacker -- ------------------------------------------------------------------------ Richard Hacker M.Sc. richard.hac...@igh.de Tel.: +49 201 / 36014-16 Ingenieurgemeinschaft IgH Gesellschaft für Ingenieurleistungen mbH Heinz-Bäcker-Str. 34 D-45356 Essen Amtsgericht Essen HRB 11500 USt-Id.-Nr.: DE 174 626 722 Geschäftsführung: - Dr.-Ing. Siegfried Rotthäuser - Dr. Sven Beermann, Prokurist Tel.: +49 201 / 360-14-0 http://www.igh.de ------------------------------------------------------------------------ On 2020-04-23 11:00, Gustav Nicolay Meilby Nobel wrote: > Hej all. > > I have recently run into a problem when I try to run a modified > version of the mini example code from the ethercat master. > > After I insert the module the dmesg reads as follow: > > [ 199.144403] ec_mini: module verification failed: signature and/or > required key missing - tainting kernel > > [ 199.144434] ec_mini: no symbol version for ecrt_request_master > > [ 199.145007] ec_mini: Starting... > > [ 199.145012] EtherCAT: Requesting master 0... > > [ 199.145017] EtherCAT: Successfully requested master 0. > > [ 199.145019] ec_mini: Registering domain... > > [ 199.145024] ec_mini: Configuring PDOs... > > [ 199.145056] BUG: unable to handle kernel NULL pointer dereference > at > 00000008 > > [ 199.145080] IP: [<f8716501>] ecrt_slave_config_pdos+0x11/0x1f0 > [ec_master] > > [ 199.145084] *pdpt = 000000002c0bf001 *pde = 0000000000000000 > > [ 199.145085] > > [ 199.145088] Oops: 0000 [#1] PREEMPT SMP > > [ 199.145132] Modules linked in: ec_mini(OE+) nls_iso8859_1 > usb_storage > ec_generic(O) ec_ccat_netdev(O) ec_master(O) ccat_update(O) > ccat_systemtime(O) ccat_sram(O) ccat_gpio(O) snd_hda_codec_hdmi > intel_rapl intel_powerclamp i915 coretemp kvm_intel kvm drm_kms_helper > irqbypass snd_hda_intel crc32_pclmul snd_hda_codec aesni_intel > aes_i586 drm xts snd_hda_core lrw ablk_helper cryptd snd_hwdep snd_pcm > joydev serio_raw lpc_ich ccat(O) snd_timer snd shpchp fb_sys_fops > syscopyarea soundcore sysfillrect sysimgblt autofs4 video mac_hid lp > parport igb hid_generic usbhid hid i2c_algo_bit ptp pps_core ahci > libahci sdhci_pci sdhci [last unloaded: ccat_netdev] > > [ 199.145137] CPU: 1 PID: 1740 Comm: insmod Tainted: G OE > 4.9.219-rt142 #1 > > [ 199.145139] Hardware name: Beckhoff Automation GmbH & Co. KG > CX5130-0120/CX51x0, BIOS CX51x0 - 0.51 01/04/2017 > > [ 199.145141] task: ed22db40 task.stack: ec04e000 > > [ 199.145144] EIP: 0060:[<f8716501>] EFLAGS: 00010296 CPU: 1 > > [ 199.145163] EIP is at ecrt_slave_config_pdos+0x11/0x1f0 [ec_master] > > [ 199.145165] EAX: 00000000 EBX: 00000000 ECX: f858e000 EDX: ffffffff > > [ 199.145167] ESI: f8557000 EDI: ebc37180 EBP: ec04fdb0 ESP: ec04fd6c > > [ 199.145169] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > > [ 199.145172] CR0: 80050033 CR2: 00000008 CR3: 2c0e4fa0 CR4: 001006f0 > > [ 199.145173] Stack: > > [ 199.145181] 00000001 00000001 00000000 c10bfe2a 00000000 f8557000 > ebc37180 ec04fda8 > > [ 199.145187] ffffffff f858e0d4 00000001 00000008 f858e0d4 00000000 > 00000000 f8557000 > > [ 199.145194] ebc37180 ec04fdc4 f855711f f858d278 03f03052 00000000 > ec04fe34 c1002228 > > [ 199.145195] Call Trace: > > [ 199.145204] [<c10bfe2a>] ? up+0x2a/0x40 > > [ 199.145207] [<f8557000>] ? 0xf8557000 > > [ 199.145211] [<f8557000>] ? 0xf8557000 > > [ 199.145217] [<f855711f>] init_module+0x11f/0x1000 [ec_mini] > > [ 199.145223] [<c1002228>] do_one_initcall+0x38/0x150 > > [ 199.145228] [<c109a507>] ? migrate_enable+0x1b7/0x330 > > [ 199.145234] [<c117fee9>] ? free_hot_cold_page+0x329/0x380 > > [ 199.145237] [<c1195c05>] ? kvfree+0x45/0x50 > > [ 199.145241] [<c11b7810>] ? __vunmap+0x70/0xc0 > > [ 199.145244] [<c1176ad5>] ? do_init_module+0x24/0x1e2 > > [ 199.145247] [<c1176ad5>] ? do_init_module+0x24/0x1e2 > > [ 199.145251] [<c1176b04>] do_init_module+0x53/0x1e2 > > [ 199.145256] [<c11037e3>] load_module+0x20c3/0x26e0 > > [ 199.145262] [<c11ec5bb>] ? kernel_read_file+0x1fb/0x250 > > [ 199.145267] [<c1103fa2>] SyS_finit_module+0x82/0xd0 > > [ 199.145273] [<c10035c9>] do_fast_syscall_32+0x99/0x150 > > [ 199.145278] [<c179be93>] sysenter_past_esp+0x40/0x6a > > [ 199.145333] Code: f8 89 44 24 04 e8 f6 01 a6 c8 b8 ea ff ff ff e9 > 67 ff ff ff 8d b6 00 00 00 00 55 89 e5 57 56 53 83 ec 38 3e 8d 74 26 > 00 89 > 45 f0 <8b> 40 08 89 55 dc 89 4d ec 8b b0 bc 13 00 00 85 f6 0f 85 8a 01 > > [ 199.145352] EIP: [<f8716501>] > > [ 199.145353] ecrt_slave_config_pdos+0x11/0x1f0 [ec_master] > > [ 199.145354] SS:ESP 0068:ec04fd6c > > [ 199.145355] CR2: 0000000000000008 > > [ 199.150603] ---[ end trace 0000000000000002 ]--- > > As far as I can see it has something to do with my pdo configuration, > as it loads fine when I don’t use the modification, of course the pdo > config is wrong in that case but it runs further before it stops. > > For reference my pdo config is attached: > > #define AnaInSlavePos 0, 1 > > #define DigOutSlavePos 0, 2 > > #define Beckhoff_EL1008 0x00000002, 0x03f03052 > > #define Beckhoff_EL2008 0x00000002, 0x07d83052 > > // offsets for PDO entries > > static unsigned int off_dig_in; > > static unsigned int off_dig_out; > > const static ec_pdo_entry_reg_t domain1_regs[] = { > > {AnaInSlavePos, Beckhoff_EL1008, 0x1000, 1, &off_dig_in}, > > {DigOutSlavePos, Beckhoff_EL2008, 0x0f00, 2, &off_dig_out}, > > }; > > static unsigned int counter = 0; > > static unsigned int blink = 0; > > /********************************************************************* > ********/ > > #if CONFIGURE_PDOS > > /* Master 0, Slave 0, "EL1008" > > * Vendor ID: 0x00000002 > > * Product code: 0x03f03052 > > * Revision number: 0x00110000 > > */ > > static ec_pdo_entry_info_t slave_0_pdo_entries[] ={ > > {0x6000, 0x01, 1}, /* Input */ > > {0x6010, 0x01, 1}, /* Input */ > > {0x6020, 0x01, 1}, /* Input */ > > {0x6030, 0x01, 1}, /* Input */ > > {0x6040, 0x01, 1}, /* Input */ > > {0x6050, 0x01, 1}, /* Input */ > > {0x6060, 0x01, 1}, /* Input */ > > {0x6070, 0x01, 1}, /* Input */ > > }; > > static ec_pdo_info_t slave_0_pdos[] = { > > {0x1a00, 1, slave_0_pdo_entries + 0}, /* Channel 1 */ > > {0x1a01, 1, slave_0_pdo_entries + 1}, /* Channel 2 */ > > {0x1a02, 1, slave_0_pdo_entries + 2}, /* Channel 3 */ > > {0x1a03, 1, slave_0_pdo_entries + 3}, /* Channel 4 */ > > {0x1a04, 1, slave_0_pdo_entries + 4}, /* Channel 5 */ > > {0x1a05, 1, slave_0_pdo_entries + 5}, /* Channel 6 */ > > {0x1a06, 1, slave_0_pdo_entries + 6}, /* Channel 7 */ > > {0x1a07, 1, slave_0_pdo_entries + 7}, /* Channel 8 */ > > }; > > static ec_sync_info_t slave_0_syncs[] = { > > {0, EC_DIR_INPUT, 8, slave_0_pdos + 0, EC_WD_DISABLE}, > > {0xff} > > }; > > /* Master 0, Slave 1, "EL2008" > > * Vendor ID: 0x00000002 > > * Product code: 0x07d83052 > > * Revision number: 0x00120000 > > */ > > static ec_pdo_entry_info_t slave_1_pdo_entries[] = { > > {0x7000, 0x01, 1}, /* Output */ > > {0x7010, 0x01, 1}, /* Output */ > > {0x7020, 0x01, 1}, /* Output */ > > {0x7030, 0x01, 1}, /* Output */ > > {0x7040, 0x01, 1}, /* Output */ > > {0x7050, 0x01, 1}, /* Output */ > > {0x7060, 0x01, 1}, /* Output */ > > {0x7070, 0x01, 1}, /* Output */ > > }; > > static ec_pdo_info_t slave_1_pdos[] = { > > {0x1600, 1, slave_1_pdo_entries + 0}, /* Channel 1 */ > > {0x1601, 1, slave_1_pdo_entries + 1}, /* Channel 2 */ > > {0x1602, 1, slave_1_pdo_entries + 2}, /* Channel 3 */ > > {0x1603, 1, slave_1_pdo_entries + 3}, /* Channel 4 */ > > {0x1604, 1, slave_1_pdo_entries + 4}, /* Channel 5 */ > > {0x1605, 1, slave_1_pdo_entries + 5}, /* Channel 6 */ > > {0x1606, 1, slave_1_pdo_entries + 6}, /* Channel 7 */ > > {0x1607, 1, slave_1_pdo_entries + 7}, /* Channel 8 */ > > }; > > static ec_sync_info_t slave_1_syncs[] = { > > {0, EC_DIR_OUTPUT, 8, slave_1_pdos + 0, EC_WD_ENABLE}, > > {0xff} > > }; > > So my question is am I doing something wrong in the pdo configuration > or do I need to install another kernel? > > Best regards > > <http://www.cabinplant.com> > > Gustav Nicolay MeilbyNobel > Automation Engineer > > 5683Haarby > Denmark > T: > E-mail: g...@cabinplant.com <mailto:g...@cabinplant.com> > Internet: www.cabinplant.com <http://www.cabinplant.com> > > Meet us at: > Exhibition list: www.cabinplant.com/exhibitions > <http://www.cabinplant.com/exhibitions> > > Cabinplant register the personal data found in the emails we have received. > You can read more about our privacy policy here > <https://www.cabinplant.com/about-us/privacy-and-cookie-statement/>. > > > > _______________________________________________ > etherlab-users mailing list > etherlab-users@etherlab.org > http://lists.etherlab.org/mailman/listinfo/etherlab-users > _______________________________________________ etherlab-users mailing list etherlab-users@etherlab.org http://lists.etherlab.org/mailman/listinfo/etherlab-users
