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USB tape drive fedora 10 kernel warning

 
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USB tape drive fedora 10 kernel warning

Hello,
Sometimes the system hang during backup.Running an up to date fedora 10 and dpe 4.0 version 42177
here is what I found in the log file:
Oct 7 01:22:47 web kernel: ------------------------
Oct 7 01:22:47 web kernel: WARNING: at drivers/ata/libata-sff.c:944 ata_sff_hsm_move+0x48d/0x681() (Tainted: G W)
Oct 7 01:22:47 web kernel: Hardware name: OptiPlex GX620
Oct 7 01:22:47 web kernel: Modules linked in: ext2 bridge stp bnep sco l2cap bluetooth sunrpc osst st ipv6 p4_clockmod dm_multipath uinput snd_intel8x0 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event i2c_i801 snd_seq snd_seq_device iTCO_wdt iTCO_vendor_support tg3 snd_pcm_oss snd_mixer_oss snd_pcm i2c_core snd_timer snd soundcore ppdev snd_page_alloc parport_pc usb_storage libphy pcspkr dcdbas parport serio_raw ata_generic pata_acpi
Oct 7 01:22:47 web kernel: Pid: 0, comm: swapper Tainted: G W 2.6.27.35-170.2.94.fc10.i686 #1
Oct 7 01:22:47 web kernel: warn_on_slowpath+0x65/0x8b
Oct 7 01:22:47 web kernel: ? sg_miter_stop+0x5a/0x81
Oct 7 01:22:47 web kernel: ? _spin_lock_irqsave+0x29/0x30
Oct 7 01:22:47 web kernel: ? lock_timer_base+0x1f/0x3e
Oct 7 01:22:47 web kernel: ? _spin_unlock_irqrestore+0x22/0x38
Oct 7 01:22:47 web kernel: ? blk_complete_request+0x67/0x7e
Oct 7 01:22:47 web kernel: ? __scsi_done+0x3f/0x41
Oct 7 01:22:47 web kernel: ? atapi_qc_complete+0x2b4/0x2bc
Oct 7 01:22:47 web kernel: ? getnstimeofday+0x54/0xe1
Oct 7 01:22:47 web kernel: ? __ata_qc_complete+0xa1/0xa6
Oct 7 01:22:47 web kernel: ? ata_qc_complete+0x197/0x19d
Oct 7 01:22:47 web kernel: ? ata_sff_data_xfer+0x55/0x7f
Oct 7 01:22:47 web kernel: ata_sff_hsm_move+0x48d/0x681
Oct 7 01:22:47 web kernel: ? trace_hardirqs_on_thunk+0xc/0x10
Oct 7 01:22:47 web kernel: ata_sff_host_intr+0xc3/0x10c
Oct 7 01:22:47 web kernel: ata_sff_interrupt+0x73/0xab
Oct 7 01:22:47 web kernel: handle_IRQ_event+0x2f/0x64
Oct 7 01:22:47 web kernel: handle_edge_irq+0xb2/0xf4
Oct 7 01:22:47 web kernel: ? handle_edge_irq+0x0/0xf4
Oct 7 01:22:47 web kernel: do_IRQ+0xc7/0xfe
Oct 7 01:22:47 web kernel: common_interrupt+0x28/0x30
Oct 7 01:22:47 web kernel: ? native_safe_halt+0x5/0x7
Oct 7 01:22:47 web kernel: default_idle+0x38/0x6a
Oct 7 01:22:47 web kernel: cpu_idle+0x101/0x134
Oct 7 01:22:47 web kernel: rest_init+0x4e/0x50
Oct 7 01:22:47 web kernel: =======================
Oct 7 01:22:47 web kernel: ------