Saw this when umounting a VFAT USB stick before it got pulled out. Haven't investigated, but thought I should post it. -Andi usb 2-1: new high speed USB device using ehci_hcd and address 4 usb 2-1: configuration #1 chosen from 1 choice scsi6 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 4 usb-storage: waiting for device to settle before scanning scsi 6:0:0:0: Direct-Access USB Flash Disk 5.00 PQ: 0 ANSI: 2 sd 6:0:0:0: Attached scsi generic sg1 type 0 sd 6:0:0:0: [sdb] 4087808 512-byte hardware sectors: (2.09 GB/1.94 GiB) usb-storage: device scan complete sd 6:0:0:0: [sdb] Write Protect is off sd 6:0:0:0: [sdb] Mode Sense: 0b 00 00 08 sd 6:0:0:0: [sdb] Assuming drive cache: write through sd 6:0:0:0: [sdb] Assuming drive cache: write through sdb: sdb1 sd 6:0:0:0: [sdb] Attached SCSI removable disk ------------[ cut here ]------------ WARNING: at /home/lsrc/linux-2.6.30-ak/fs/namespace.c:638 mntput_no_expire+0xcf/0x11b() Hardware name: Modules linked in: ... Pid: 8749, comm: umount Not tainted 2.6.30.2-BASIL #7 Call Trace: [<ffffffff8020e284>] dump_trace+0x6e/0x292 [<ffffffff805bccb3>] dump_stack+0x69/0x6f [<ffffffff802376db>] warn_slowpath_common+0x77/0xa2 [<ffffffff802b78a1>] mntput_no_expire+0xcf/0x11b [<ffffffff802b7e27>] sys_umount+0x2b7/0x2e2 [<ffffffff8020ba6b>] system_call_fastpath+0x16/0x1b [<00007fe4739421c7>] 0x7fe4739421c7 ---[ end trace 6fa485b25ae0195b ]--- usb 2-1: USB disconnect, address 4 -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html