Description of problem:

Sometimes I am not able to mount my usb flash device on
an HP Compaq desktop mashine.  If I do reboot, mounting is 
sometimes possible, sometimes not (random behavior).

Version-Release number of selected component (if applicable):

kernel-2.6.9-1.681_FC3

  
Actual results:

Buffer I/O error on device sda, logical block 0
 unable to read partition table
usb 1-7: USB disconnect, address 2
scsi: Device offlined - not ready after error recovery: host 0 channel
0 id 0 lun 0
sd 0:0:0:0: Illegal state transition cancel->offline
Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1691
 [<22468643>] scsi_device_set_state+0xc8/0xd3 [scsi_mod]
 [<22465b8b>] scsi_eh_offline_sdevs+0x49/0x5e [scsi_mod]
 [<22466146>] scsi_unjam_host+0x22d/0x23e [scsi_mod]
 [<22466291>] scsi_error_handler+0x13a/0x191 [scsi_mod]
 [<0211b669>] schedule_tail+0xc/0x37
 [<22466157>] scsi_error_handler+0x0/0x191 [scsi_mod]
 [<021041d9>] kernel_thread_helper+0x5/0xb
scsi: Device offlined - not ready after error recovery: host 0 channel
0 id 0 lun 0
sd 0:0:0:0: Illegal state transition cancel->offline
Badness in scsi_device_set_state at drivers/scsi/scsi_lib.c:1691
 [<22468643>] scsi_device_set_state+0xc8/0xd3 [scsi_mod]
 [<22465b8b>] scsi_eh_offline_sdevs+0x49/0x5e [scsi_mod]
 [<22466146>] scsi_unjam_host+0x22d/0x23e [scsi_mod]
 [<224625c5>] __scsi_iterate_devices+0x123/0x12b [scsi_mod]
 [<22466291>] scsi_error_handler+0x13a/0x191 [scsi_mod]
 [<0211b669>] schedule_tail+0xc/0x37
 [<22466157>] scsi_error_handler+0x0/0x191 [scsi_mod]
 [<021041d9>] kernel_thread_helper+0x5/0xb
Unable to handle kernel NULL pointer dereference at virtual address
00000008
 printing eip:
02250a37
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: sd_mod usb_storage scsi_mod i915 parport_pc lp
parport autofs4 i2c_dev i2c_core sunrpc ipt_REJECT ipt_state
ip_conntrack iptable_filter ip_tables dm_mod md5 ipv6 uhci_hcd
ehci_hcd hw_random snd_intel8x0 snd_ac97_codec snd_pcm_oss
snd_mixer_oss snd_pcm snd_timer snd_page_alloc gameport
snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore e100 mii
floppy ext3 jbd
CPU:    0
EIP:    0060:[<02250a37>]    Not tainted VLI
EFLAGS: 00010046   (2.6.9-1.681_FC3) 
EIP is at cfq_insert_request+0x45/0xdf
eax: 1ba92d18   ebx: 034d08b0   ecx: 00000001   edx: 034d08b0
esi: 00000001   edi: 00000000   ebp: 00000000   esp: 0c9d6efc
ds: 007b   es: 007b   ss: 0068
Process scsi_eh_0 (pid: 5673, threadinfo=0c9d6000 task=1926cbb0)
Stack: 1ba92d18 1ba92d18 00000001 034d08b0 00000202 02247213 1ba92d18
00000001 
       034d08b0 022471d5 00000000 02249382 1cde8b00 1bb0b400 1cfc4400
00001057 
       22466576 1cde8b00 00000001 1cde8b00 0c9d6f74 0c9d6f74 0c9d6f7c
22465ec8 
Call Trace:
 [<02247213>] __elv_add_request+0x3c/0x71
 [<022471d5>] elv_requeue_request+0x29/0x2b
 [<02249382>] blk_insert_request+0xba/0x18b
 [<22466576>] scsi_queue_insert+0x84/0x8d [scsi_mod]
 [<22465ec8>] scsi_eh_flush_done_q+0x7d/0xce [scsi_mod]
 [<2246614f>] scsi_unjam_host+0x236/0x23e [scsi_mod]
 [<224625c5>] __scsi_iterate_devices+0x123/0x12b [scsi_mod]
 [<22466291>] scsi_error_handler+0x13a/0x191 [scsi_mod]
 [<0211b669>] schedule_tail+0xc/0x37
 [<22466157>] scsi_error_handler+0x0/0x191 [scsi_mod]
 [<021041d9>] kernel_thread_helper+0x5/0xb
Code: 74 29 eb 51 83 f9 03 74 33 eb 4a 8b 04 24 89 fa e8 f8 fa ff ff
85 c0 75 f2 8b 47 08 8b 50 04 89 03 89 58 04 89 1a 89 53 04 eb 3f <8b>
47 08 8b 10 89 5a 04 89 13 89 43 04 89 18 eb 2e f6 42 08 10 



Additional info:

The boot should be performed with acpi = off, otherwise
I get the following boot message:


kernel: irq 9: nobody cared! (screaming interrupt?)
Dec  1 10:23:41 nadir kernel: irq 9: Please try booting with acpi=off
and report a bug