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Date:      Sat, 5 Aug 2006 22:30:37 GMT
From:      "O. Hartmann" <ohartman@uni-mainz.de>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/101448: FBSD 6.1-STABLE/AMD64 crashes under heavy USB/OHCI load
Message-ID:  <200608052230.k75MUbNG038425@www.freebsd.org>
Resent-Message-ID: <200608052240.k75MeEGW098328@freefall.freebsd.org>

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>Number:         101448
>Category:       kern
>Synopsis:       FBSD 6.1-STABLE/AMD64 crashes under heavy USB/OHCI load
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Aug 05 22:40:14 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     O. Hartmann
>Release:        FBSD 6.1-STABLE/AMD64
>Organization:
Uni Mainz
>Environment:
FreeBSD thor.de 6.1-STABLE FreeBSD 6.1-STABLE #21: Sat Aug  5 12:05:24 UTC 2006     root@thor.de:/usr/obj/usr/src/sys/THOR  amd64

>Description:
FreeBSD 6.1-STABLE/AMD64 crashes when external USB drive (ohci) is under heavy load.
This is the section from dmesg:

ohci0: <OHCI (generic) USB controller> mem 0xd7dfa000-0xd7dfafff irq 21 at device 11.0 on pci0
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: nVidia OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 10 ports with 10 removable, self powered
ehci0: <NVIDIA nForce4 USB 2.0 controller> mem 0xd7dfbc00-0xd7dfbcff irq 22 at device 11.1 on pci0
ehci0: [GIANT-LOCKED]
usb1: waiting for BIOS to give up control
usb1: timed out waiting for BIOS
usb1: EHCI version 1.0
usb1: companion controller, 4 ports each: usb0
usb1: <NVIDIA nForce4 USB 2.0 controller> on ehci0
usb1: USB revision 2.0
uhub1: nVidia EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub1: 10 ports with 10 removable, self powered
umass0: Macpower &Tytech Tech USB2.0 Enclosure, rev 2.00/1.00, addr 2


System is a AMD64 based box, ASUS A8N32-SLI Deluxe mobo, FreeBSD 6.1-STABLE/AMD64, no 32 Bit support enabled, single core CPU, no SMP.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:



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