Alle 03:16, mercoledì 24 novembre 2004, David Brownell ha scritto: > OK, so there may be two different problems then. The one > producing the stack backtraces from SCSI/kobject stuff; > and a change in behavior related to USB. > > What happens if you set the "old_scheme_first" usbcore > parameter? One thing that changed since that kernel > was that enumeration works a bit more like one of the > schemes MS-Windows uses.
Ok, it seems that now the device is detected without problems at first try; I've tried several times with this setup in modprobe.conf: options usbcore old_scheme_first=1 and I'm unable to reproduce the behaviour of missed detection of usb device, no matter how many times I can try, so I think you have hit the point, many thanks :) As expected, the faulty behaviour of kobject is still here (double registration..), but now the device is working on first try, so half the problem is gone away :) I get some scsi errors about unit not ready, but the driver seems to handle this quite well. If this can be a useful information, on this box are present 5 different scsi-like devices: cdrom,cdwriter and scanner attached to aic7xxx controller, SATA disk on ich5/abit ic-7g builtin controller and flash usb key. So far the only strange behaviour is with usb flash key. Below you can find as usual the full syslog report.. Many thanks for your help. Nov 24 21:38:04 kefk kernel: hub 5-0:1.0: state 5 ports 8 chg ff00 evt 0008 Nov 24 21:38:04 kefk kernel: ehci_hcd 0000:00:1d.7: GetStatus port 3 status 001803 POWER sig=j CSC CONNECT Nov 24 21:38:04 kefk kernel: hub 5-0:1.0: port 3, status 0501, change 0001, 480 Mb/s Nov 24 21:38:04 kefk kernel: hub 5-0:1.0: debounce: port 3: total 100ms stable 100ms status 0x501 Nov 24 21:38:04 kefk kernel: ehci_hcd 0000:00:1d.7: port 3 high speed Nov 24 21:38:04 kefk kernel: ehci_hcd 0000:00:1d.7: GetStatus port 3 status 001005 POWER sig=se0 PE CONNECT Nov 24 21:38:04 kefk kernel: usb 5-3: new high speed USB device using ehci_hcd and address 3 Nov 24 21:38:04 kefk kernel: usb 5-3: new device strings: Mfr=1, Product=2, SerialNumber=3 Nov 24 21:38:04 kefk kernel: usb 5-3: default language 0x0409 Nov 24 21:38:04 kefk kernel: usb 5-3: Product: Mass storage Nov 24 21:38:04 kefk kernel: usb 5-3: Manufacturer: USB Nov 24 21:38:04 kefk kernel: usb 5-3: SerialNumber: 142E19413C2FCA34 Nov 24 21:38:04 kefk kernel: usb 5-3: hotplug Nov 24 21:38:04 kefk kernel: usb 5-3: adding 5-3:1.0 (config #1, interface 0) Nov 24 21:38:04 kefk kernel: usb 5-3:1.0: hotplug Nov 24 21:38:04 kefk kernel: Initializing USB Mass Storage driver... Nov 24 21:38:04 kefk kernel: usb-storage 5-3:1.0: usb_probe_interface Nov 24 21:38:04 kefk kernel: usb-storage 5-3:1.0: usb_probe_interface - got id Nov 24 21:38:04 kefk kernel: scsi3 : SCSI emulation for USB Mass Storage devices Nov 24 21:38:04 kefk kernel: usbcore: registered new driver usb-storage Nov 24 21:38:04 kefk kernel: USB Mass Storage support registered. Nov 24 21:38:04 kefk kernel: usb-storage: device found at 3 Nov 24 21:38:04 kefk kernel: usb-storage: waiting for device to settle before scanning Nov 24 21:38:09 kefk kernel: Vendor: 512MB Model: USB2.0FlashDrive Rev: 2.00 Nov 24 21:38:09 kefk kernel: Type: Direct-Access ANSI SCSI revision: 02 Nov 24 21:38:09 kefk kernel: sdb: Unit Not Ready, sense: Nov 24 21:38:09 kefk kernel: : Current: sense key=0x6 Nov 24 21:38:09 kefk kernel: ASC=0x28 ASCQ=0x0 Nov 24 21:38:09 kefk kernel: sdb : READ CAPACITY failed. Nov 24 21:38:09 kefk kernel: sdb : status=1, message=00, host=0, driver=08 Nov 24 21:38:09 kefk kernel: sd: Current: sense key=0x6 Nov 24 21:38:09 kefk kernel: ASC=0x28 ASCQ=0x0 Nov 24 21:38:09 kefk kernel: sdb: test WP failed, assume Write Enabled Nov 24 21:38:09 kefk kernel: sdb: assuming drive cache: write through Nov 24 21:38:09 kefk kernel: sdb: Unit Not Ready, sense: Nov 24 21:38:09 kefk kernel: : Current: sense key=0x6 Nov 24 21:38:09 kefk kernel: ASC=0x28 ASCQ=0x0 Nov 24 21:38:09 kefk kernel: SCSI device sdb: 1024000 512-byte hdwr sectors (524 MB) Nov 24 21:38:09 kefk kernel: sdb: Write Protect is off Nov 24 21:38:09 kefk kernel: sdb: Mode Sense: 03 00 00 00 Nov 24 21:38:09 kefk kernel: sdb: assuming drive cache: write through Nov 24 21:38:09 kefk kernel: SCSI device sdb: 1024000 512-byte hdwr sectors (524 MB) Nov 24 21:38:09 kefk kernel: sdb: Write Protect is off Nov 24 21:38:09 kefk kernel: sdb: Mode Sense: 03 00 00 00 Nov 24 21:38:09 kefk kernel: sdb: assuming drive cache: write through Nov 24 21:38:09 kefk kernel: sdb: sdb1 Nov 24 21:38:09 kefk kernel: sdb: sdb1 Nov 24 21:38:09 kefk kernel: kobject_register failed for sdb1 (-17) Nov 24 21:38:09 kefk kernel: [bitmap_scnlistprintf+191/292] kobject_register+0x51/0x5f Nov 24 21:38:09 kefk kernel: [<c01f28eb>] kobject_register+0x51/0x5f Nov 24 21:38:09 kefk kernel: [stat_open+45/154] add_partition+0xbb/0xf0 Nov 24 21:38:09 kefk kernel: [<c0185208>] add_partition+0xbb/0xf0 Nov 24 21:38:09 kefk kernel: [cmdline_read_proc+9/103] register_disk+0xee/0x11d Nov 24 21:38:09 kefk kernel: [<c0185380>] register_disk+0xee/0x11d Nov 24 21:38:09 kefk kernel: [unregister_blkdev+144/232] add_disk+0x36/0x41 Nov 24 21:38:09 kefk kernel: [<c02577d6>] add_disk+0x36/0x41 Nov 24 21:38:09 kefk kernel: [unregister_blkdev+70/232] exact_match+0x0/0x7 Nov 24 21:38:09 kefk kernel: [<c025778c>] exact_match+0x0/0x7 Nov 24 21:38:09 kefk kernel: [unregister_blkdev+77/232] exact_lock+0x0/0xd Nov 24 21:38:09 kefk kernel: [<c0257793>] exact_lock+0x0/0xd Nov 24 21:38:09 kefk kernel: [sd_remove+76/82] sd_probe+0x224/0x32f Nov 24 21:38:09 kefk kernel: [<c02982c5>] sd_probe+0x224/0x32f Nov 24 21:38:09 kefk kernel: [msdos_partition+391/804] sysfs_make_dirent+0x1c/0x89 Nov 24 21:38:09 kefk kernel: [<c0186927>] sysfs_make_dirent+0x1c/0x89 Nov 24 21:38:09 kefk kernel: [msdos_partition+391/804] sysfs_make_dirent+0x1c/0x89 Nov 24 21:38:09 kefk kernel: [<c0186927>] sysfs_make_dirent+0x1c/0x89 Nov 24 21:38:09 kefk kernel: [__bus_for_each_drv+81/114] driver_probe_device+0x29/0x6a Nov 24 21:38:09 kefk kernel: [<c024efa0>] driver_probe_device+0x29/0x6a Nov 24 21:38:09 kefk kernel: [bus_for_each_drv+28/74] device_attach+0x46/0xaa Nov 24 21:38:09 kefk kernel: [<c024f027>] device_attach+0x46/0xaa Nov 24 21:38:09 kefk kernel: [fcntl_setlk+333/707] dput+0x76/0x209 Nov 24 21:38:09 kefk kernel: [<c0168de2>] dput+0x76/0x209 Nov 24 21:38:09 kefk kernel: [device_add_attrs+32/161] bus_add_device+0x55/0x97 Nov 24 21:38:09 kefk kernel: [<c024f2ee>] bus_add_device+0x55/0x97 Nov 24 21:38:09 kefk kernel: [device_remove_file+12/61] device_add+0xb9/0x15c Nov 24 21:38:09 kefk kernel: [<c024e2ee>] device_add+0xb9/0x15c Nov 24 21:38:09 kefk kernel: [scsi_sysfs_add_sdev+651/777] scsi_sysfs_add_sdev+0xa0/0x309 Nov 24 21:38:09 kefk kernel: [<c0276649>] scsi_sysfs_add_sdev+0xa0/0x309 Nov 24 21:38:09 kefk kernel: [scsi_probe_and_add_lun+292/425] scsi_add_lun+0x2d9/0x32f Nov 24 21:38:09 kefk kernel: [<c02751fc>] scsi_add_lun+0x2d9/0x32f Nov 24 21:38:09 kefk kernel: [scsi_sequential_lun_scan+142/239] scsi_probe_and_add_lun+0xbd/0x1c2 Nov 24 21:38:09 kefk kernel: [<c027530f>] scsi_probe_and_add_lun+0xbd/0x1c2 Nov 24 21:38:09 kefk kernel: [scsi_scan_host_selected+180/199] scsi_scan_target+0x9a/0x106 Nov 24 21:38:09 kefk kernel: [<c0275a89>] scsi_scan_target+0x9a/0x106 Nov 24 21:38:09 kefk kernel: [scsi_free_host_dev+51/64] scsi_scan_channel+0x7c/0x9a Nov 24 21:38:09 kefk kernel: [<c0275b71>] scsi_scan_channel+0x7c/0x9a Nov 24 21:38:09 kefk kernel: [check_set+39/139] scsi_scan_host_selected+0x6e/0xc7 Nov 24 21:38:09 kefk kernel: [<c0275bfd>] scsi_scan_host_selected+0x6e/0xc7 Nov 24 21:38:09 kefk kernel: [scsi_scan+22/193] scsi_scan_host+0x21/0x25 Nov 24 21:38:09 kefk kernel: [<c0275c77>] scsi_scan_host+0x21/0x25 Nov 24 21:38:09 kefk kernel: [pg0+946681578/1069159424] usb_stor_scan_thread+0x13a/0x14b [usb_storage] Nov 24 21:38:09 kefk kernel: [<f8b306ea>] usb_stor_scan_thread+0x13a/0x14b [usb_storage] Nov 24 21:38:09 kefk kernel: [do_timer_gettime+232/297] autoremove_wake_function+0x0/0x43 Nov 24 21:38:09 kefk kernel: [<c012d031>] autoremove_wake_function+0x0/0x43 Nov 24 21:38:09 kefk kernel: [copy_thread+542/592] ret_from_fork+0x6/0x14 Nov 24 21:38:09 kefk kernel: [<c0102506>] ret_from_fork+0x6/0x14 Nov 24 21:38:09 kefk kernel: [do_timer_gettime+232/297] autoremove_wake_function+0x0/0x43 Nov 24 21:38:09 kefk kernel: [<c012d031>] autoremove_wake_function+0x0/0x43 Nov 24 21:38:09 kefk kernel: [pg0+946681264/1069159424] usb_stor_scan_thread+0x0/0x14b [usb_storage] Nov 24 21:38:09 kefk kernel: [<f8b305b0>] usb_stor_scan_thread+0x0/0x14b [usb_storage] Nov 24 21:38:09 kefk kernel: [huft_build+637/1249] kernel_thread_helper+0x5/0xb Nov 24 21:38:09 kefk kernel: [<c01008a5>] kernel_thread_helper+0x5/0xb Nov 24 21:38:09 kefk kernel: Attached scsi removable disk sdb at scsi3, channel 0, id 0, lun 0 Nov 24 21:38:09 kefk kernel: Attached scsi generic sg4 at scsi3, channel 0, id 0, lun 0, type 0 Nov 24 21:38:09 kefk kernel: usb-storage: device scan complete Nov 24 21:38:09 kefk scsi.agent[7594]: disk at /devices/pci0000:00/0000:00:1d.7/usb5/5-3/5-3:1.0/host3/target3:0:0/3:0:0:0 after this, i can mount the device as sdb1 and use it without problems. On removal, this is the behaviour Nov 24 21:40:11 kefk kernel: hub 5-0:1.0: state 5 ports 8 chg ff00 evt 0008 Nov 24 21:40:11 kefk kernel: ehci_hcd 0000:00:1d.7: GetStatus port 3 status 001002 POWER sig=se0 CSC Nov 24 21:40:11 kefk kernel: hub 5-0:1.0: port 3, status 0100, change 0001, 12 Mb/s Nov 24 21:40:11 kefk kernel: usb 5-3: USB disconnect, address 3 Nov 24 21:40:11 kefk kernel: usb 5-3: usb_disable_device nuking all URBs Nov 24 21:40:11 kefk kernel: usb 5-3: unregistering interface 5-3:1.0 Nov 24 21:40:11 kefk kernel: BUG: atomic counter underflow at: Nov 24 21:40:11 kefk kernel: [create_dir+25/68] kref_put+0x48/0x92 Nov 24 21:40:11 kefk kernel: [<c01f33aa>] kref_put+0x48/0x92 Nov 24 21:40:11 kefk kernel: [storenote+15/185] del_gendisk+0x1d/0xd5 Nov 24 21:40:11 kefk kernel: [<c0185588>] del_gendisk+0x1d/0xd5 Nov 24 21:40:11 kefk kernel: [sr_media_change+27/157] sd_remove+0x17/0x52 Nov 24 21:40:11 kefk kernel: [<c02983e7>] sd_remove+0x17/0x52 Nov 24 21:40:11 kefk kernel: [device_attach+108/170] device_release_driver+0x6d/0x6f Nov 24 21:40:11 kefk kernel: [<c024f17d>] device_release_driver+0x6d/0x6f Nov 24 21:40:11 kefk kernel: [device_remove_attrs+20/90] bus_remove_device+0x53/0x90 Nov 24 21:40:11 kefk kernel: [<c024f383>] bus_remove_device+0x53/0x90 Nov 24 21:40:11 kefk kernel: [device_add+177/348] device_del+0x54/0x91 Nov 24 21:40:11 kefk kernel: [<c024e416>] device_del+0x54/0x91 Nov 24 21:40:11 kefk kernel: [scsi_sysfs_add_host+233/303] scsi_remove_device+0x4e/0xab Nov 24 21:40:11 kefk kernel: [<c0276900>] scsi_remove_device+0x4e/0xab Nov 24 21:40:11 kefk kernel: [scsi_scan+71/193] scsi_forget_host+0x2d/0x4f Nov 24 21:40:11 kefk kernel: [<c0275ca8>] scsi_forget_host+0x2d/0x4f Nov 24 21:40:11 kefk kernel: [scsi_device_lookup+63/106] scsi_remove_host+0x8/0x7c Nov 24 21:40:11 kefk kernel: [<c026fbbb>] scsi_remove_host+0x8/0x7c Nov 24 21:40:11 kefk kernel: [pg0+946682259/1069159424] storage_disconnect+0x7b/0x8d [usb_storage] Nov 24 21:40:11 kefk kernel: [<f8b30993>] storage_disconnect+0x7b/0x8d [usb_storage] Nov 24 21:40:11 kefk kernel: [pg0+944152901/1069159424] usb_unbind_interface+0x5e/0x60 [usbcore] Nov 24 21:40:11 kefk kernel: [<f88c7145>] usb_unbind_interface+0x5e/0x60 [usbcore] Nov 24 21:40:11 kefk kernel: [device_attach+108/170] device_release_driver+0x6d/0x6f Nov 24 21:40:11 kefk kernel: [<c024f17d>] device_release_driver+0x6d/0x6f Nov 24 21:40:11 kefk kernel: [device_remove_attrs+20/90] bus_remove_device+0x53/0x90 Nov 24 21:40:11 kefk kernel: [<c024f383>] bus_remove_device+0x53/0x90 Nov 24 21:40:11 kefk kernel: [device_add+177/348] device_del+0x54/0x91 Nov 24 21:40:11 kefk kernel: [<c024e416>] device_del+0x54/0x91 Nov 24 21:40:11 kefk kernel: [pg0+944185103/1069159424] usb_disable_device+0xda/0x147 [usbcore] Nov 24 21:40:11 kefk kernel: [<f88cef0f>] usb_disable_device+0xda/0x147 [usbcore] Nov 24 21:40:11 kefk kernel: [pg0+944163153/1069159424] usb_disconnect+0xa8/0x188 [usbcore] Nov 24 21:40:11 kefk kernel: [<f88c9951>] usb_disconnect+0xa8/0x188 [usbcore] Nov 24 21:40:11 kefk kernel: [pg0+944168454/1069159424] hub_port_connect_change+0x344/0x477 [usbcore] Nov 24 21:40:11 kefk kernel: [<f88cae06>] hub_port_connect_change+0x344/0x477 [usbcore] Nov 24 21:40:11 kefk kernel: [pg0+944156904/1069159424] clear_port_feature+0x48/0x4d [usbcore] Nov 24 21:40:11 kefk kernel: [<f88c80e8>] clear_port_feature+0x48/0x4d [usbcore] Nov 24 21:40:11 kefk kernel: [pg0+944169571/1069159424] hub_events+0x32a/0x4f6 [usbcore] Nov 24 21:40:11 kefk kernel: [<f88cb263>] hub_events+0x32a/0x4f6 [usbcore] Nov 24 21:40:11 kefk kernel: [pg0+944170084/1069159424] hub_thread+0x35/0x10e [usbcore] Nov 24 21:40:11 kefk kernel: [<f88cb464>] hub_thread+0x35/0x10e [usbcore] Nov 24 21:40:11 kefk kernel: [do_timer_gettime+232/297] autoremove_wake_function+0x0/0x43 Nov 24 21:40:11 kefk kernel: [<c012d031>] autoremove_wake_function+0x0/0x43 Nov 24 21:40:11 kefk kernel: [copy_thread+542/592] ret_from_fork+0x6/0x14 Nov 24 21:40:11 kefk kernel: [<c0102506>] ret_from_fork+0x6/0x14 Nov 24 21:40:11 kefk kernel: [do_timer_gettime+232/297] autoremove_wake_function+0x0/0x43 Nov 24 21:40:11 kefk kernel: [<c012d031>] autoremove_wake_function+0x0/0x43 Nov 24 21:40:11 kefk kernel: [pg0+944170031/1069159424] hub_thread+0x0/0x10e [usbcore] Nov 24 21:40:11 kefk kernel: [<f88cb42f>] hub_thread+0x0/0x10e [usbcore] Nov 24 21:40:11 kefk kernel: [huft_build+637/1249] kernel_thread_helper+0x5/0xb Nov 24 21:40:11 kefk kernel: [<c01008a5>] kernel_thread_helper+0x5/0xb Nov 24 21:40:11 kefk kernel: usb 5-3:1.0: hotplug Nov 24 21:40:11 kefk kernel: usb 5-3: unregistering device Nov 24 21:40:11 kefk kernel: usb 5-3: hotplug Nov 24 21:40:11 kefk kernel: hub 5-0:1.0: debounce: port 3: total 100ms stable 100ms status 0x100 -- Fabio Coatti http://members.ferrara.linux.it/cova Ferrara Linux Users Group http://ferrara.linux.it GnuPG fp:9765 A5B6 6843 17BC A646 BE8C FA56 373A 5374 C703 Old SysOps never die... they simply forget their password. 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