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SubjectRe: [REGRESSION] 2.6.24/25: random lockups when accessing external USB harddrive
On 22-06-08 18:55, Stefan Becker wrote:

Only adding Alan Stern to the CC...

> Hi,
>
> [I'm not subscribed to this list, so please CC: me when you answer]
>
> I get random machine lockups when accessing my USB harddrive with
> kernels 2.6.24/25. They don't occur with kernel 2.6.23. During testing I
> figured out that it has something to do with the USB Bluetooth adaptor.
> If I remove it before the testing I don't get any lockups.
>
> git bisect resulted in the following bad commit:
>
> e9df41c5c5899259541dc928872cad4d07b82076 is first bad commit
> commit e9df41c5c5899259541dc928872cad4d07b82076
> Author: Alan Stern <stern@rowland.harvard.edu>
> Date: Wed Aug 8 11:48:02 2007 -0400
>
> USB: make HCDs responsible for managing endpoint queues
>
> This patch (as954) implements a suggestion of David Brownell's. Now
> the host controller drivers are responsible for linking and unlinking
> URBs to/from their endpoint queues. This eliminates the possiblity of
> strange situations where usbcore thinks an URB is linked but the HCD
> thinks it isn't. It also means HCDs no longer have to check for URBs
> being dequeued before they were fully enqueued.
> [TRUNCATED...]
>
>
> I've attached the kernel configuration.
>
> Test procedure:
>
> - boot test kernel in single user mode
> - "service rsyslog start"
> - "service messagebus start"
> - "service bluetooth start"
> - connect USB drive
> - "mount /dev/sdb1 /mnt"
> - "dd if=/dev/zero of=/mnt/test bs=10M"
> BAD: lockup, GOOD: writes until partition is full
>
>
>
> My USB hardware:
>
> Bus 001 Device 006: ID 04b4:6830 Cypress Semiconductor Corp. USB-2.0 IDE
> Adapter
> Bus 001 Device 001: ID 1d6b:0002
> Bus 003 Device 002: ID 046d:c001 Logitech, Inc. N48/M-BB48 [FirstMouse
> Plus]
> Bus 003 Device 001: ID 1d6b:0001
> Bus 002 Device 003: ID 050d:0081 Belkin Components FBT001v2 Bluetooth
> Bus 002 Device 001: ID 1d6b:0001
>
>
> My USB controllers:
>
> $ /sbin/lspci | fgrep USB
> 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller (rev 80)
> 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller (rev 80)
> 00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
>
>
> /proc/usb/devices:
> T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
> B: Alloc= 11/900 us ( 1%), #Int= 1, #Iso= 0
> D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=1d6b ProdID=0001 Rev= 2.06
> S: Manufacturer=Linux 2.6.25.4-10.fc8 uhci_hcd
> S: Product=UHCI Host Controller
> S: SerialNumber=0000:00:10.1
> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
>
> T: Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=1.5 MxCh= 0
> D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=046d ProdID=c001 Rev= 4.10
> S: Manufacturer=Logitech
> S: Product=USB Mouse
> C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 50mA
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=usbhid
> E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=10ms
>
> T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
> B: Alloc= 45/900 us ( 5%), #Int= 1, #Iso= 1
> D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=1d6b ProdID=0001 Rev= 2.06
> S: Manufacturer=Linux 2.6.25.4-10.fc8 uhci_hcd
> S: Product=UHCI Host Controller
> S: SerialNumber=0000:00:10.0
> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
>
> T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
> D: Ver= 1.10 Cls=e0(unk. ) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
> P: Vendor=050d ProdID=0081 Rev= 8.28
> C:* #Ifs= 3 Cfg#= 1 Atr=c0 MxPwr= 0mA
> I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
> I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
> E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
> I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
> E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
> I:* If#= 1 Alt= 2 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
> E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
> I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
> E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
> I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
> E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
> I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
> E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
> I:* If#= 2 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=00 Driver=(none)
>
> T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 4
> B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
> P: Vendor=1d6b ProdID=0002 Rev= 2.06
> S: Manufacturer=Linux 2.6.25.4-10.fc8 ehci_hcd
> S: Product=EHCI Host Controller
> S: SerialNumber=0000:00:10.3
> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms
>
> T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 6 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=04b4 ProdID=6830 Rev= 0.01
> S: Manufacturer=Cypress Semiconductor
> S: Product=USB2.0 Storage Device
> S: SerialNumber=DEF107679C83
> C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA
> I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
> E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>
> Regards,
>
> Stefan
>
> ---
> Stefan Becker
> E-Mail: Stefan.Becker@nokia.com


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