Latest working kernel version:
Earliest failing kernel version:
Distribution: Gentoo (However, this problem happens on a fedora live disk, and ubuntu live disk as well.)
Hardware Environment: GA-MA78GM-S2H, Phenom 9550, 8GB Ram
Software Environment: Gentoo (gcc 4.2.4)
Problem Description:

On 2.6.24, after about 5 minutes of use, all the USB on my system would stop working until I restarted by system. In order to continue operating my computer, I would need a PS2 keyboard. When I did dmesg I saw nothing relating to the USB thought. At this point, if I plug in a USB device I would see something like

[code]usb 1-5: new high speed USB device using ehci_hcd and address 10[/code]

But nothing else. After plugging in that single device neither plugging or unplugging any USB device would generate any message (it was the usb systems last umph.)

This problem is very repeatable for me. After about 2-10 mins of usage the USB stops as I've described. I must have done this 20-30 times restarting my computer, recompiling my kernel, messing with my bios trying to fix it with no avail.

I decided to upgrade to 2.6.25 and the story is a bit different, after a few mins the USB stops as well. But if I wait for a few more minutes after that, it begins to work again (any USB device that was connected when it "stopped" working will have to be replugged to see it work again). In addition I get a dmesg output:

[code]
[   25.940943] ieee1394: Host added: ID:BUS[0-00:1023]  GUID[0070009400001fd0]
[   34.568447] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   35.580393] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   36.593361] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   37.612340] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   38.627827] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   38.627827] hub 1-4.1:1.0: Cannot enable port 1.  Maybe the USB cable is bad?
[   39.639776] hub 1-4.1:1.0: cannot disable port 1 (err = -110)
[   40.655231] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   41.667184] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   42.679121] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   43.691073] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   44.706544] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   44.706544] hub 1-4.1:1.0: Cannot enable port 1.  Maybe the USB cable is bad?
[   45.725600] hub 1-4.1:1.0: cannot disable port 1 (err = -110)
[   46.737527] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   47.749479] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   48.762416] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   49.774367] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   50.786308] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   50.786308] hub 1-4.1:1.0: Cannot enable port 1.  Maybe the USB cable is bad?
[   51.799242] hub 1-4.1:1.0: cannot disable port 1 (err = -110)
[   52.811191] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   53.823119] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   54.838687] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   55.850639] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   56.862565] hub 1-4.1:1.0: cannot reset port 1 (err = -110)
[   56.862565] hub 1-4.1:1.0: Cannot enable port 1.  Maybe the USB cable is bad?
[   57.874518] hub 1-4.1:1.0: cannot disable port 1 (err = -110)
[   58.889975] hub 1-4.1:1.0: cannot disable port 1 (err = -110)
[   58.889975] scsi 6:0:0:0: Device offlined - not ready after error recovery
[   58.889975] usb-storage: device scan complete
[   63.951941] hub 1-4.1:1.0: hub_port_status failed (err = -110)
[   90.198168] EXT3 FS on sda3, internal journal
[   90.635213] Adding 2096472k swap on /dev/sda2.  Priority:-1 extents:1 across:2096472k
[   96.258429] r8169: eth0: link up
[   96.871087] r8169: eth0: link up
[   97.355614] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.355614] ata2.00: irq_stat 0x40000001
[   97.355614] ata2.00: cmd c8/00:01:00:00:00/00:00:00:00:00/e0 tag 0 dma 512 in
[   97.355614]          res 61/04:01:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.355614] ata2.00: status: { DRDY DF ERR }
[   97.355614] ata2.00: error: { ABRT }
[   97.356683] ata2.00: configured for UDMA/133 (device error ignored)
[   97.356683] ata2: EH complete
[   97.356705] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.356705] ata2.00: irq_stat 0x40000001
[   97.356705] ata2.00: cmd c8/00:01:00:00:00/00:00:00:00:00/e0 tag 0 dma 512 in
[   97.356705]          res 61/04:01:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.356705] ata2.00: status: { DRDY DF ERR }
[   97.356705] ata2.00: error: { ABRT }
[   97.358318] ata2.00: configured for UDMA/133 (device error ignored)
[   97.358342] ata2: EH complete
[   96.891277] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   97.358598] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.358603] ata2.00: irq_stat 0x40000001
[   97.358613] ata2.00: cmd c8/00:01:00:00:00/00:00:00:00:00/e0 tag 0 dma 512 in
[   97.358615]          res 61/04:01:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.358620] ata2.00: status: { DRDY DF ERR }
[   97.358623] ata2.00: error: { ABRT }
[   97.361493] ata2.00: configured for UDMA/133 (device error ignored)
[   97.361493] ata2: EH complete
[   96.893254] sd 1:0:0:0: [sdb] Write Protect is off
[   96.893258] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   97.361774] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.361774] ata2.00: irq_stat 0x40000001
[   97.361774] ata2.00: cmd c8/00:01:00:00:00/00:00:00:00:00/e0 tag 0 dma 512 in
[   97.361774]          res 61/04:01:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.361774] ata2.00: status: { DRDY DF ERR }
[   97.361774] ata2.00: error: { ABRT }
[   97.363646] ata2.00: configured for UDMA/133 (device error ignored)
[   97.363665] ata2: EH complete
[   97.363950] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.363961] ata2.00: irq_stat 0x40000001
[   97.363969] ata2.00: cmd c8/00:01:00:00:00/00:00:00:00:00/e0 tag 0 dma 512 in
[   97.363974]          res 61/04:01:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.363978] ata2.00: status: { DRDY DF ERR }
[   97.363982] ata2.00: error: { ABRT }
[   97.366791] ata2.00: configured for UDMA/133 (device error ignored)
[   97.366791] ata2: EH complete
[   96.897518] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.366791] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.366791] ata2.00: irq_stat 0x40000001
[   97.366791] ata2.00: cmd c8/00:01:00:00:00/00:00:00:00:00/e0 tag 0 dma 512 in
[   97.366791]          res 61/04:01:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.366791] ata2.00: status: { DRDY DF ERR }
[   97.366791] ata2.00: error: { ABRT }
[   97.368626] ata2.00: configured for UDMA/133 (device error ignored)
[   97.368646] sd 1:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[   97.368653] sd 1:0:0:0: [sdb] Sense Key : Aborted Command [current] [descriptor]
[   97.368660] Descriptor sense data with sense descriptors (in hex):
[   97.368664]         72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00
[   97.368677]         00 00 00 00
[   97.368687] sd 1:0:0:0: [sdb] Add. Sense: No additional sense information
[   97.368695] end_request: I/O error, dev sdb, sector 0
[   97.368699] printk: 6 messages suppressed.
[   97.368704] Buffer I/O error on device sdb, logical block 0
[   97.368716] ata2: EH complete
[   96.899588] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.899606] sd 1:0:0:0: [sdb] Write Protect is off
[   96.899610] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.899635] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   96.899659] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.899676] sd 1:0:0:0: [sdb] Write Protect is off
[   96.899682] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.899706] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.369760] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.369766] ata2.00: irq_stat 0x40000001
[   97.369777] ata2.00: cmd c8/00:1f:01:00:00/00:00:00:00:00/e0 tag 0 dma 15872 in
[   97.369786]          res 61/04:1f:01:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.369791] ata2.00: status: { DRDY DF ERR }
[   97.369794] ata2.00: error: { ABRT }
[   97.372007] ata2.00: configured for UDMA/133 (device error ignored)
[   97.372007] ata2: EH complete
[   96.902488] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.902502] sd 1:0:0:0: [sdb] Write Protect is off
[   96.902505] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.902528] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.372007] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.372007] ata2.00: irq_stat 0x40000001
[   97.372007] ata2.00: cmd c8/00:1f:01:00:00/00:00:00:00:00/e0 tag 0 dma 15872 in
[   97.372007]          res 61/04:1f:01:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.372007] ata2.00: status: { DRDY DF ERR }
[   97.372007] ata2.00: error: { ABRT }
[   97.374684] ata2.00: configured for UDMA/133 (device error ignored)
[   97.374706] ata2: EH complete
[   96.904559] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.904573] sd 1:0:0:0: [sdb] Write Protect is off
[   96.904576] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.904600] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.375098] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.375103] ata2.00: irq_stat 0x40000001
[   97.375113] ata2.00: cmd c8/00:1f:01:00:00/00:00:00:00:00/e0 tag 0 dma 15872 in
[   97.375119]          res 61/04:1f:01:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.375124] ata2.00: status: { DRDY DF ERR }
[   97.375127] ata2.00: error: { ABRT }
[   97.377041] ata2.00: configured for UDMA/133 (device error ignored)
[   97.377041] ata2: EH complete
[   96.906666] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.906679] sd 1:0:0:0: [sdb] Write Protect is off
[   96.906683] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.906707] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.377114] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.377120] ata2.00: irq_stat 0x40000001
[   97.377127] ata2.00: cmd c8/00:1f:01:00:00/00:00:00:00:00/e0 tag 0 dma 15872 in
[   97.377137]          res 61/04:1f:01:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.377142] ata2.00: status: { DRDY DF ERR }
[   97.377145] ata2.00: error: { ABRT }
[   97.381706] ata2.00: configured for UDMA/133 (device error ignored)
[   97.381706] ata2: EH complete
[   96.909763] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.909763] sd 1:0:0:0: [sdb] Write Protect is off
[   96.909763] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.909763] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.381706] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.381706] ata2.00: irq_stat 0x40000001
[   97.381706] ata2.00: cmd c8/00:1f:01:00:00/00:00:00:00:00/e0 tag 0 dma 15872 in
[   97.381706]          res 61/04:1f:01:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.381706] ata2.00: status: { DRDY DF ERR }
[   97.381706] ata2.00: error: { ABRT }
[   97.383805] ata2.00: configured for UDMA/133 (device error ignored)
[   97.383823] ata2: EH complete
[   96.911833] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.911846] sd 1:0:0:0: [sdb] Write Protect is off
[   96.911849] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.911874] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.384208] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.384213] ata2.00: irq_stat 0x40000001
[   97.384221] ata2.00: cmd c8/00:1f:01:00:00/00:00:00:00:00/e0 tag 0 dma 15872 in
[   97.384224]          res 61/04:1f:01:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.384234] ata2.00: status: { DRDY DF ERR }
[   97.384237] ata2.00: error: { ABRT }
[   97.387648] ata2.00: configured for UDMA/133 (device error ignored)
[   97.387648] sd 1:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[   97.387648] sd 1:0:0:0: [sdb] Sense Key : Aborted Command [current] [descriptor]
[   97.387648] Descriptor sense data with sense descriptors (in hex):
[   97.387648]         72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00
[   97.387648]         00 00 00 01
[   97.387648] sd 1:0:0:0: [sdb] Add. Sense: No additional sense information
[   97.387648] end_request: I/O error, dev sdb, sector 1
[   97.387648] Buffer I/O error on device sdb, logical block 1
[   97.387648] Buffer I/O error on device sdb, logical block 2
[   97.387648] Buffer I/O error on device sdb, logical block 3
[   97.387648] Buffer I/O error on device sdb, logical block 4
[   97.387648] Buffer I/O error on device sdb, logical block 5
[   97.387648] Buffer I/O error on device sdb, logical block 6
[   97.387648] Buffer I/O error on device sdb, logical block 7
[   97.387648] Buffer I/O error on device sdb, logical block 8
[   97.387648] Buffer I/O error on device sdb, logical block 9
[   97.387648] ata2: EH complete
[   96.915609] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.915629] sd 1:0:0:0: [sdb] Write Protect is off
[   96.915634] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.915660] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.388783] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.388788] ata2.00: irq_stat 0x40000001
[   97.388799] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[   97.388802]          res 61/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.388812] ata2.00: status: { DRDY DF ERR }
[   97.388815] ata2.00: error: { ABRT }
[   97.391649] ata2.00: configured for UDMA/133 (device error ignored)
[   97.391649] ata2: EH complete
[   96.918529] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.918529] sd 1:0:0:0: [sdb] Write Protect is off
[   96.918529] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.918529] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.392473] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.392478] ata2.00: irq_stat 0x40000001
[   97.392485] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[   97.392488]          res 61/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.392498] ata2.00: status: { DRDY DF ERR }
[   97.392501] ata2.00: error: { ABRT }
[   97.395323] ata2.00: configured for UDMA/133 (device error ignored)
[   97.395344] ata2: EH complete
[   96.921366] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.921379] sd 1:0:0:0: [sdb] Write Protect is off
[   96.921385] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.921410] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.395649] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.395649] ata2.00: irq_stat 0x40000001
[   97.395649] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[   97.395649]          res 61/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.395649] ata2.00: status: { DRDY DF ERR }
[   97.395649] ata2.00: error: { ABRT }
[   97.396834] ata2.00: configured for UDMA/133 (device error ignored)
[   97.396834] ata2: EH complete
[   96.923462] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.923462] sd 1:0:0:0: [sdb] Write Protect is off
[   96.923462] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.923462] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.398709] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.398714] ata2.00: irq_stat 0x40000001
[   97.398722] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[   97.398728]          res 61/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.398733] ata2.00: status: { DRDY DF ERR }
[   97.398736] ata2.00: error: { ABRT }
[   97.401487] ata2.00: configured for UDMA/133 (device error ignored)
[   97.401487] ata2: EH complete
[   96.926266] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.926266] sd 1:0:0:0: [sdb] Write Protect is off
[   96.926266] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.926266] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.401487] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.401487] ata2.00: irq_stat 0x40000001
[   97.401487] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[   97.401487]          res 61/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.401487] ata2.00: status: { DRDY DF ERR }
[   97.401487] ata2.00: error: { ABRT }
[   97.402667] ata2.00: configured for UDMA/133 (device error ignored)
[   97.402667] ata2: EH complete
[   96.928291] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.928305] sd 1:0:0:0: [sdb] Write Protect is off
[   96.928308] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.928332] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.402667] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[   97.402667] ata2.00: irq_stat 0x40000001
[   97.402667] ata2.00: cmd c8/00:08:00:00:00/00:00:00:00:00/e0 tag 0 dma 4096 in
[   97.402667]          res 61/04:08:00:00:00/00:00:00:00:00/e0 Emask 0x1 (device error)
[   97.402667] ata2.00: status: { DRDY DF ERR }
[   97.402667] ata2.00: error: { ABRT }
[   97.403845] ata2.00: configured for UDMA/133 (device error ignored)
[   97.403845] sd 1:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[   97.403845] sd 1:0:0:0: [sdb] Sense Key : Aborted Command [current] [descriptor]
[   97.403845] Descriptor sense data with sense descriptors (in hex):
[   97.403845]         72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00
[   97.403845]         00 00 00 00
[   97.403845] sd 1:0:0:0: [sdb] Add. Sense: No additional sense information
[   97.403845] end_request: I/O error, dev sdb, sector 0
[   97.403845] ata2: EH complete
[   96.931287] sd 1:0:0:0: [sdb] 976771055 512-byte hardware sectors (500107 MB)
[   96.931287] sd 1:0:0:0: [sdb] Write Protect is off
[   96.931287] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[   96.931287] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[   97.971817] warning: `avahi-daemon' uses 32-bit capabilities (legacy support in use)
[  106.354814] eth0: no IPv6 routers present
[  381.729013] usb 1-4: USB disconnect, address 2
[  381.729013] usb 1-4.1: USB disconnect, address 3
[  381.729013] usb 1-4.1.1: USB disconnect, address 4
[  381.729053] usb 1-4.1.3: USB disconnect, address 5
[  381.765075] printk: 30 messages suppressed.
[  381.765075] hald-addon-keyb[5029]: segfault at fffffff8 ip 7f11f2f33d45 sp 7ffffb86e030 error 4 in libc-2.8.so[7f11f2ec2000+13f000]
[  381.804417] hald-addon-keyb[5032]: segfault at fffffff8 ip 7fab44491d45 sp 7fff4cdca590 error 4 in libc-2.8.so[7fab44420000+13f000]
[  384.760069] usb 1-4: new high speed USB device using ehci_hcd and address 6
[  399.923496] usb 1-4: device descriptor read/64, error -110
[  415.235971] usb 1-4: device descriptor read/64, error -110
[  415.453428] usb 1-4: new high speed USB device using ehci_hcd and address 7
[  431.752528] usb 1-4: device descriptor read/64, error -110
[  447.812077] usb 1-4: device descriptor read/64, error -110
[  448.036895] usb 1-4: new high speed USB device using ehci_hcd and address 8
[  458.674246] usb 1-4: device not accepting address 8, error -110
[  458.788689] usb 1-4: new high speed USB device using ehci_hcd and address 9
[  469.245505] usb 1-4: device not accepting address 9, error -110
[  469.245505] hub 1-0:1.0: unable to enumerate USB device on port 4
[  469.643843] usb 4-1: new full speed USB device using ohci_hcd and address 2
[  469.800920] usb 4-1: not running at top speed; connect to a high speed hub
[  469.804889] usb 4-1: configuration #1 chosen from 1 choice
[  469.806065] hub 4-1:1.0: USB hub found
[  469.808829] hub 4-1:1.0: 2 ports detected
[  470.146835] usb 4-1.1: new full speed USB device using ohci_hcd and address 3
[  470.262890] usb 4-1.1: not running at top speed; connect to a high speed hub
[  470.266858] usb 4-1.1: configuration #1 chosen from 1 choice
[  470.268123] hub 4-1.1:1.0: USB hub found
[  470.270881] hub 4-1.1:1.0: 4 ports detected
[  470.618359] usb 4-1.1.1: new full speed USB device using ohci_hcd and address 4
[  470.750878] usb 4-1.1.1: not running at top speed; connect to a high speed hub
[  470.816793] usb 4-1.1.1: configuration #1 chosen from 1 choice
[  470.818914] scsi7 : SCSI emulation for USB Mass Storage devices
[  469.026291] usb-storage: device found at 4
[  469.026291] usb-storage: waiting for device to settle before scanning
[  471.047745] usb 4-1.1.3: new low speed USB device using ohci_hcd and address 5
[  471.162051] usb 4-1.1.3: configuration #1 chosen from 1 choice
[  471.174024] input: Logitech Logitech USB Keyboard as /class/input/input5
[  471.224682] input: USB HID v1.10 Keyboard [Logitech Logitech USB Keyboard] on usb-0000:00:12.1-1.1.3
[  471.241642] input: Logitech Logitech USB Keyboard as /class/input/input6
[  471.297151] input: USB HID v1.10 Device [Logitech Logitech USB Keyboard] on usb-0000:00:12.1-1.1.3
[  475.857380] scsi 7:0:0:0: Direct-Access     Generic  Flash HS-CF      4.44 PQ: 0 ANSI: 0
[  475.866793] sd 7:0:0:0: [sdc] Attached SCSI removable disk
[  475.866863] sd 7:0:0:0: Attached scsi generic sg3 type 0
[  475.872672] scsi 7:0:0:1: Direct-Access     Generic  Flash HS-COMBO   4.44 PQ: 0 ANSI: 0
[  475.932706] sd 7:0:0:1: [sdd] Attached SCSI removable disk
[  475.932706] sd 7:0:0:1: Attached scsi generic sg4 type 0
[  475.954944] usb-storage: device scan complete
[ 1293.120242] usb 1-5: new high speed USB device using ehci_hcd and address 10
[ 1308.436853] hub 1-0:1.0: unable to enumerate USB device on port 5
[/code]

(In addition, it looks like my sdb hard drive is having some problems too) I'm more concerned with the USB at the moment. I know both SATA and USB are on the SB700 southbridge so I was wondering if it was damaged. (If its actual HW damage I'll RMA the board and this bug should be marked as invalid.) But the other southbridge stuff like audio, in addition my my sda hard drive works fine. Again, I don't know if I have hardware damage or if its a Linux problem (unfortunately I don't have windows to test with).

In the above example I have both my USB keyboard and USB mouse plugged into my USB hub on my monitor, but it still fails if I have them directly into the motherboard's USB. In addition, it doesnt matter what USB port I'm using as well.