Pendrive 1GB, in 2.6.28 works without any problems (also in XP and Vista) 2.6.29-rc3: [ 7737.804065] usb 5-4: new high speed USB device using ehci_hcd and address 4 [ 7737.939363] usb 5-4: configuration #1 chosen from 1 choice [ 7737.939969] scsi7 : SCSI emulation for USB Mass Storage devices [ 7737.949340] usb-storage: device found at 4 [ 7737.949346] usb-storage: waiting for device to settle before scanning [ 7742.950197] scsi 7:0:0:0: Direct-Access pqi IntelligentStick 0.00 PQ: 0 ANSI: 2 [ 7742.951269] sd 7:0:0:0: [sdb] 2015231 512-byte hardware sectors: (1.03 GB/983 MiB) [ 7742.952431] sd 7:0:0:0: [sdb] Write Protect is off [ 7742.952439] sd 7:0:0:0: [sdb] Mode Sense: 00 00 00 00 [ 7742.952445] sd 7:0:0:0: [sdb] Assuming drive cache: write through [ 7742.954890] sd 7:0:0:0: [sdb] 2015231 512-byte hardware sectors: (1.03 GB/983 MiB) [ 7742.955761] sd 7:0:0:0: [sdb] Write Protect is off [ 7742.955768] sd 7:0:0:0: [sdb] Mode Sense: 00 00 00 00 [ 7742.955773] sd 7:0:0:0: [sdb] Assuming drive cache: write through [ 7742.955779] sdb: sdb1 [ 7743.063563] sd 7:0:0:0: [sdb] Attached SCSI removable disk [ 7743.063657] sd 7:0:0:0: Attached scsi generic sg2 type 0 [ 7743.063914] usb-storage: device scan complete [ 7743.201999] ------------[ cut here ]------------ [ 7743.202005] WARNING: at drivers/usb/storage/transport.c:584 last_sector_hacks+0x12a/0x190 [usb_storage]() [ 7743.202009] Hardware name: HP Compaq nx6310 (EY501ES#AKD) [ 7743.202012] sdb: Successful last sector success at 2015230, device 3538:0054:0100 [ 7743.202015] Modules linked in: usb_storage iwl3945 mac80211 btusb i915 drm i2c_algo_bit i2c_core rfcomm l2cap bluetooth vboxnetflt vboxdrv arc4 ecb rfkill firmware_class led_class lib80211 cfg80211 xt_tcpudp xt_limit xt_state iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables aes_i586 aes_generic cbc dm_crypt dm_snapshot dm_mirror dm_region_hash dm_log dm_mod fuse sbp2 loop snd_hda_codec_si3054 snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq snd_timer snd_seq_device psmouse snd b44 ssb ohci1394 ehci_hcd uhci_hcd serio_raw rtc_cmos soundcore pcspkr mii ieee1394 yenta_socket rsrc_nonstatic pcmcia_core fan usbcore rtc_core rtc_lib snd_page_alloc intel_agp ac button battery agpgart sg evdev [last unloaded: mac80211] [ 7743.202102] Pid: 10122, comm: usb-storage Tainted: G W 2.6.29-rc3 #1 [ 7743.202105] Call Trace: [ 7743.202117] [<c012e783>] warn_slowpath+0x73/0xd0 [ 7743.202126] [<c0394f00>] ? wait_for_common+0x60/0x110 [ 7743.202131] [<c0128ac0>] ? default_wake_function+0x0/0x10 [ 7743.202135] [<c0394fed>] ? wait_for_completion_interruptible_timeout+0xd/0x10 [ 7743.202143] [<f8dd1f43>] ? usb_stor_msg_common+0xd3/0x120 [usb_storage] [ 7743.202150] [<f8dd1e0a>] last_sector_hacks+0x12a/0x190 [usb_storage] [ 7743.202167] [<f8dd26b2>] usb_stor_invoke_transport+0x1a2/0x310 [usb_storage] [ 7743.202171] [<c012309b>] ? check_preempt_wakeup+0x1bb/0x1d0 [ 7743.202175] [<c0128a43>] ? try_to_wake_up+0x113/0x190 [ 7743.202179] [<c0394f96>] ? wait_for_common+0xf6/0x110 [ 7743.202183] [<c0128ac0>] ? default_wake_function+0x0/0x10 [ 7743.202190] [<f8dd1b88>] usb_stor_transparent_scsi_command+0x8/0x10 [usb_storage] [ 7743.202198] [<f8dd3d50>] usb_stor_control_thread+0x120/0x1b0 [usb_storage] [ 7743.202202] [<c0122848>] ? complete+0x48/0x60 [ 7743.202209] [<f8dd3c30>] ? usb_stor_control_thread+0x0/0x1b0 [usb_storage] [ 7743.202214] [<c0142c5c>] kthread+0x3c/0x70 [ 7743.202217] [<c0142c20>] ? kthread+0x0/0x70 [ 7743.202221] [<c0103c0b>] kernel_thread_helper+0x7/0x1c [ 7743.202224] ---[ end trace 676bbe351870c93d ]--- After this works OK It isn't clean 2.6.29-rc3; I add virtualbox module, but in another machine I have the same problem. Dmesg, lsusb and config: http://unixy.pl/maciek/download/kernel/2.6.29-rc3/ -- Maciej Rutecki http://www.maciek.unixy.pl -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html