Hi, doing a modprobe fixed the driver segfaults and I get this Oops: Jul 14 13:43:30 lara [ 157.952915] Fixed PHY: Registered new driver Jul 14 13:43:30 lara [ 157.953010] Device 'fixed@100:1' does not have a release() function, it is broken and must be fixed. Jul 14 13:43:30 lara [ 157.953019] WARNING: at drivers/base/core.c:107 device_release() Jul 14 13:43:30 lara [ 157.953032] [] kobject_cleanup+0x3d/0x54 Jul 14 13:43:30 lara [ 157.953050] [] kobject_release+0x0/0x8 Jul 14 13:43:30 lara [ 157.953060] [] kref_put+0x60/0x6d Jul 14 13:43:30 lara [ 157.953068] [] device_del+0x1f3/0x215 Jul 14 13:43:30 lara [ 157.953083] [] fixed_mdio_register_device+0x1e2/0x20d [fixed] Jul 14 13:43:30 lara [ 157.953108] [] fixed_init+0x1b/0x2f [fixed] Jul 14 13:43:30 lara [ 157.953119] [] sys_init_module+0x1686/0x175a Jul 14 13:43:30 lara [ 157.953133] [] do_sync_read+0x0/0x10a Jul 14 13:43:30 lara [ 157.953180] [] sysenter_past_esp+0x5f/0x85 Jul 14 13:43:30 lara [ 157.953195] [] packet_setsockopt+0x1c9/0x2f3 Jul 14 13:43:30 lara [ 157.953232] ======================= Jul 14 13:43:30 lara [ 157.953261] BUG: unable to handle kernel paging request at virtual address 43b7a800 Jul 14 13:43:30 lara [ 157.953273] printing eip: Jul 14 13:43:30 lara [ 157.953278] c015d269 Jul 14 13:43:30 lara [ 157.953283] *pde = 00000000 Jul 14 13:43:30 lara [ 157.953293] Oops: 0000 [#1] Jul 14 13:43:30 lara [ 157.953293] Oops: 0000 [#1] Jul 14 13:43:30 lara [ 157.953301] PREEMPT SMP Jul 14 13:43:30 lara [ 157.953301] PREEMPT SMP Jul 14 13:43:30 lara [ 157.953309] Modules linked in: fixed pc87360 hwmon_vid i2c_isa eeprom adm1021 uhci_hcd sr_mod shpchp pci_hotplug ohci_hcd iTCO_wdt iTCO_vendor_support intel_agp i82860_edac i2c_i801 ehci_hcd usbcore edac_mc cdrom agpgart 3c59x mii ext4dev jbd2 capability commoncap loop lp parport_pc parport Jul 14 13:43:30 lara [ 157.953386] CPU: 3 Jul 14 13:43:30 lara [ 157.953386] CPU: 3 Jul 14 13:43:30 lara [ 157.953387] EIP: 0060:[] Not tainted VLI Jul 14 13:43:30 lara [ 157.953387] EIP: 0060:[] Not tainted VLI Jul 14 13:43:30 lara [ 157.953391] EFLAGS: 00210006 (2.6.22-g8d9107e8 #7) Jul 14 13:43:30 lara [ 157.953391] EFLAGS: 00210006 (2.6.22-g8d9107e8 #7) Jul 14 13:43:30 lara [ 157.953404] EIP is at kmem_cache_zalloc+0x75/0x89 Jul 14 13:43:30 lara [ 157.953404] EIP is at kmem_cache_zalloc+0x75/0x89 Jul 14 13:43:30 lara [ 157.953412] eax: 00000000 ebx: 00200282 ecx: c14c8760 edx: 43b7a800 Jul 14 13:43:30 lara [ 157.953412] eax: 00000000 ebx: 00200282 ecx: c14c8760 edx: 43b7a800 Jul 14 13:43:30 lara [ 157.953423] esi: e7f75840 edi: c17937b8 ebp: 000000d0 esp: db1ced98 Jul 14 13:43:30 lara [ 157.953423] esi: e7f75840 edi: c17937b8 ebp: 000000d0 esp: db1ced98 Jul 14 13:43:30 lara [ 157.953434] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Jul 14 13:43:30 lara [ 157.953434] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Jul 14 13:43:30 lara [ 157.953444] Process modprobe (pid: 2164, ti=db1ce000 task=de78ac20 task.ti=db1ce000) Jul 14 13:43:30 lara [ 157.953444] Process modprobe (pid: 2164, ti=db1ce000 task=de78ac20 task.ti=db1ce000) Jul 14 13:43:30 lara [ 157.953450] Stack: c014cfd4 c01cf2f7 43b7a800 c03ae384 c036d990 db150690 c17937b8 c17937b8 Jul 14 13:43:30 lara [ 157.953450] Stack: c014cfd4 c01cf2f7 43b7a800 c03ae384 c036d990 db150690 c17937b8 c17937b8 Jul 14 13:43:30 lara [ 157.953470] c019752a 00000002 41ed0000 e643bb60 c036d990 db150690 c036d990 e643bb60 Jul 14 13:43:30 lara [ 157.953470] c019752a 00000002 41ed0000 e643bb60 c036d990 db150690 c036d990 e643bb60 Jul 14 13:43:30 lara [ 157.953489] c01979b1 c0197712 db1cede4 00000000 e643bb60 c036d990 00000000 c03b8e98 Jul 14 13:43:30 lara [ 157.953489] c01979b1 c0197712 db1cede4 00000000 e643bb60 c036d990 00000000 c03b8e98 Jul 14 13:43:30 lara [ 157.953513] Call Trace: Jul 14 13:43:30 lara [ 157.953513] Call Trace: Jul 14 13:43:30 lara [ 157.953518] [] kstrdup+0x27/0x47 Jul 14 13:43:30 lara [ 157.953518] [] kstrdup+0x27/0x47 Jul 14 13:43:30 lara [ 157.953530] [] ida_get_new_above+0xe6/0x166 Jul 14 13:43:30 lara [ 157.953530] [] ida_get_new_above+0xe6/0x166 Jul 14 13:43:30 lara [ 157.953551] [] sysfs_new_dirent+0x3d/0xdc Jul 14 13:43:30 lara [ 157.953551] [] sysfs_new_dirent+0x3d/0xdc Jul 14 13:43:30 lara [ 157.953574] [] create_dir+0x1e/0x8c Jul 14 13:43:30 lara [ 157.953574] [] create_dir+0x1e/0x8c Jul 14 13:43:30 lara [ 157.953588] [] sysfs_addrm_finish+0x13/0x1d8 Jul 14 13:43:30 lara [ 157.953588] [] sysfs_addrm_finish+0x13/0x1d8 Jul 14 13:43:30 lara [ 157.953609] [] sysfs_create_subdir+0x13/0x16 Jul 14 13:43:30 lara [ 157.953609] [] sysfs_create_subdir+0x13/0x16 Jul 14 13:43:30 lara [ 157.953622] [] sysfs_create_group+0x25/0xe7 Jul 14 13:43:30 lara [ 157.953622] [] sysfs_create_group+0x25/0xe7 Jul 14 13:43:30 lara [ 157.953642] [] device_pm_add+0x38/0x72 Jul 14 13:43:30 lara [ 157.953642] [] device_pm_add+0x38/0x72 Jul 14 13:43:30 lara [ 157.953655] [] device_add+0x230/0x3d8 Jul 14 13:43:30 lara [ 157.953655] [] device_add+0x230/0x3d8 Jul 14 13:43:30 lara [ 157.953678] [] fixed_mdio_register_device+0x17a/0x20d [fixed] Jul 14 13:43:30 lara [ 157.953678] [] fixed_mdio_register_device+0x17a/0x20d [fixed] Jul 14 13:43:30 lara [ 157.953706] [] fixed_init+0x2c/0x2f [fixed] Jul 14 13:43:30 lara [ 157.953706] [] fixed_init+0x2c/0x2f [fixed] Jul 14 13:43:30 lara [ 157.953718] [] sys_init_module+0x1686/0x175a Jul 14 13:43:30 lara [ 157.953718] [] sys_init_module+0x1686/0x175a Jul 14 13:43:30 lara [ 157.953734] [] do_sync_read+0x0/0x10a Jul 14 13:43:30 lara [ 157.953734] [] do_sync_read+0x0/0x10a Jul 14 13:43:30 lara [ 157.953797] [] sysenter_past_esp+0x5f/0x85 Jul 14 13:43:30 lara [ 157.953797] [] sysenter_past_esp+0x5f/0x85 Jul 14 13:43:30 lara [ 157.953816] [] packet_setsockopt+0x1c9/0x2f3 Jul 14 13:43:30 lara [ 157.953816] [] packet_setsockopt+0x1c9/0x2f3 Jul 14 13:43:30 lara [ 157.953835] ======================= Jul 14 13:43:30 lara [ 157.953835] ======================= Jul 14 13:43:30 lara [ 157.953841] Code: 08 00 74 2f 8b 56 08 31 c0 89 d1 c1 e9 02 8b 7c 24 08 f3 ab f6 c2 02 74 02 66 ab f6 c2 01 74 01 aa eb 10 0f b7 41 0a 8b 54 24 08 <8b> 04 82 89 41 0c eb c8 8b 44 24 08 83 c4 10 5b 5e 5f 5d c3 57 Jul 14 13:43:30 lara [ 157.953841] Code: 08 00 74 2f 8b 56 08 31 c0 89 d1 c1 e9 02 8b 7c 24 08 f3 ab f6 c2 02 74 02 66 ab f6 c2 01 74 01 aa eb 10 0f b7 41 0a 8b 54 24 08 <8b> 04 82 89 41 0c eb c8 8b 44 24 08 83 c4 10 5b 5e 5f 5d c3 57 Jul 14 13:43:30 lara [ 157.953943] EIP: [] kmem_cache_zalloc+0x75/0x89 SS:ESP 0068:db1ced98 Jul 14 13:43:30 lara [ 157.953943] EIP: [] kmem_cache_zalloc+0x75/0x89 SS:ESP 0068:db1ced98 Jul 14 13:43:30 lara [ 157.954836] BUG: unable to handle kernel paging request at virtual address 43b7a800 Jul 14 13:43:30 lara [ 157.954847] printing eip: Jul 14 13:43:30 lara [ 157.954852] c015d269 Jul 14 13:43:30 lara [ 157.954856] *pde = 00000000 Jul 14 13:43:30 lara [ 157.954863] Oops: 0000 [#2] Jul 14 13:43:30 lara [ 157.954863] Oops: 0000 [#2] Jul 14 13:43:30 lara [ 157.954865] PREEMPT SMP Jul 14 13:43:30 lara [ 157.954865] PREEMPT SMP Jul 14 13:43:30 lara [ 157.954870] Modules linked in: fixed pc87360 hwmon_vid i2c_isa eeprom adm1021 uhci_hcd sr_mod shpchp pci_hotplug ohci_hcd iTCO_wdt iTCO_vendor_support intel_agp i82860_edac i2c_i801 ehci_hcd usbcore edac_mc cdrom agpgart 3c59x mii ext4dev jbd2 capability commoncap loop lp parport_pc parport Jul 14 13:43:30 lara [ 157.954913] CPU: 3 Jul 14 13:43:30 lara [ 157.954913] CPU: 3 Jul 14 13:43:30 lara [ 157.954914] EIP: 0060:[] Not tainted VLI Jul 14 13:43:30 lara [ 157.954914] EIP: 0060:[] Not tainted VLI Jul 14 13:43:30 lara [ 157.954916] EFLAGS: 00010006 (2.6.22-g8d9107e8 #7) Jul 14 13:43:30 lara [ 157.954916] EFLAGS: 00010006 (2.6.22-g8d9107e8 #7) Jul 14 13:43:30 lara [ 157.954929] EIP is at kmem_cache_zalloc+0x75/0x89 Jul 14 13:43:30 lara [ 157.954929] EIP is at kmem_cache_zalloc+0x75/0x89 Jul 14 13:43:30 lara [ 157.954934] eax: 00000000 ebx: 00000282 ecx: c14c8760 edx: 43b7a800 Jul 14 13:43:30 lara [ 157.954934] eax: 00000000 ebx: 00000282 ecx: c14c8760 edx: 43b7a800 Jul 14 13:43:30 lara [ 157.954941] esi: e7f75840 edi: fffffff4 ebp: 000000d0 esp: e6c05eec Jul 14 13:43:30 lara [ 157.954941] esi: e7f75840 edi: fffffff4 ebp: 000000d0 esp: e6c05eec Jul 14 13:43:30 lara [ 157.954949] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Jul 14 13:43:30 lara [ 157.954949] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 Jul 14 13:43:30 lara [ 157.954956] Process udevd (pid: 611, ti=e6c05000 task=c1791840 task.ti=e6c05000) Jul 14 13:43:30 lara [ 157.954956] Process udevd (pid: 611, ti=e6c05000 task=c1791840 task.ti=e6c05000) Jul 14 13:43:30 lara [ 157.954961] Stack: 000200d0 00000010 43b7a800 00000296 db448000 c1791840 fffffff4 db448000 Jul 14 13:43:30 lara [ 157.954961] Stack: 000200d0 00000010 43b7a800 00000296 db448000 c1791840 fffffff4 db448000 Jul 14 13:43:30 lara [ 157.954979] c014373a db4c4000 c011973d c1525154 db7b36e0 e6c05fb8 e6c05fb8 bff81c98 Jul 14 13:43:30 lara [ 157.954979] c014373a db4c4000 c011973d c1525154 db7b36e0 e6c05fb8 e6c05fb8 bff81c98 Jul 14 13:43:30 lara [ 157.954995] 01200011 c0128c84 db448000 c03ab4b4 e7e147d0 c03ab4b0 00000879 00000001 Jul 14 13:43:30 lara [ 157.954995] 01200011 c0128c84 db448000 c03ab4b4 e7e147d0 c03ab4b0 00000879 00000001 Jul 14 13:43:30 lara [ 157.955013] Call Trace: Jul 14 13:43:30 lara [ 157.955013] Call Trace: Jul 14 13:43:30 lara [ 157.955025] [] __delayacct_tsk_init+0x12/0x2b Jul 14 13:43:30 lara [ 157.955025] [] __delayacct_tsk_init+0x12/0x2b Jul 14 13:43:30 lara [ 157.955039] [] copy_process+0x289/0x1150 Jul 14 13:43:30 lara [ 157.955039] [] copy_process+0x289/0x1150 Jul 14 13:43:30 lara [ 157.955058] [] alloc_pid+0x212/0x236 Jul 14 13:43:30 lara [ 157.955058] [] alloc_pid+0x212/0x236 Jul 14 13:43:30 lara [ 157.955079] [] do_fork+0x9a/0x1c2 Jul 14 13:43:30 lara [ 157.955079] [] do_fork+0x9a/0x1c2 Jul 14 13:43:30 lara [ 157.955098] [] sys_clone+0x36/0x3b Jul 14 13:43:30 lara [ 157.955098] [] sys_clone+0x36/0x3b Jul 14 13:43:30 lara [ 157.955106] [] sysenter_past_esp+0x5f/0x85 Jul 14 13:43:30 lara [ 157.955106] [] sysenter_past_esp+0x5f/0x85 Jul 14 13:43:30 lara [ 157.955121] ======================= Jul 14 13:43:30 lara [ 157.955121] ======================= Jul 14 13:43:30 lara [ 157.955123] Code: 08 00 74 2f 8b 56 08 31 c0 89 d1 c1 e9 02 8b 7c 24 08 f3 ab f6 c2 02 74 02 66 ab f6 c2 01 74 01 aa eb 10 0f b7 41 0a 8b 54 24 08 <8b> 04 82 89 41 0c eb c8 8b 44 24 08 83 c4 10 5b 5e 5f 5d c3 57 Jul 14 13:43:30 lara [ 157.955123] Code: 08 00 74 2f 8b 56 08 31 c0 89 d1 c1 e9 02 8b 7c 24 08 f3 ab f6 c2 02 74 02 66 ab f6 c2 01 74 01 aa eb 10 0f b7 41 0a 8b 54 24 08 <8b> 04 82 89 41 0c eb c8 8b 44 24 08 83 c4 10 5b 5e 5f 5d c3 57 Jul 14 13:43:30 lara [ 157.955204] EIP: [] kmem_cache_zalloc+0x75/0x89 SS:ESP 0068:e6c05eec Jul 14 13:43:30 lara [ 157.955204] EIP: [] kmem_cache_zalloc+0x75/0x89 SS:ESP 0068:e6c05eec Config is attached. Regards, Gabriel C