usb/128745: zyd teoretically supported usb device makes kernel panic

[aGaTHoS]

>Number:         128745
>Category:       usb
>Synopsis:       zyd teoretically supported usb device makes kernel panic
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-usb
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 10 06:20:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     aGaTHoS
>Release:        FreeBSD 7.1-PRERELEASE
>Organization:
>Environment:
FreeBSD ares.fobos.org 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #6: Sun Nov  2 00:12:52 CET 2008     root at ares.fobos.org:/usr/obj/usr/src/sys/ARES  amd64
>Description:
Usb zyd device with vendor and product id's: 0x0ace, 0x1215, causes kernel panic inmediately when plugged.
>How-To-Repeat:
1. plug zyd device with vendor and product id's 0x0ace, 0x1215
2. wait 2 or 3 seconds :)

[root at ares ~]# kgdb /usr/obj/usr/src/sys/ARES/kernel.debug /var/crash/vmcore.1 
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This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:
zyd0: zyd_read sleep timeout
ehci_check_intr: sqtdstart=NULL


Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address   = 0x38
fault code              = supervisor read data, page not present
instruction pointer     = 0x8:0xffffffff802273df
stack pointer           = 0x10:0xffffffffacd82be0
frame pointer           = 0x10:0xffffffffacdb1f80
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 28 (usbtask-hc)
trap number             = 12
panic: page fault
cpuid = 1
Uptime: 18m29s
ehci_check_intr: sqtdstart=NULL
ehci_check_intr: sqtdstart=NULL
ehci_check_intr: sqtdstart=NULL
ehci_check_intr: sqtdstart=NULL
ehci_check_intr: sqtdstart=NULL
ehci_check_intr: sqtdstart=NULL
Physical memory: 2037 MB
Dumping 165 MB: 150 134 118 102 86 70 54 38 22 6

Reading symbols from /boot/kernel/zfs.ko...Reading symbols from /boot/kernel/zfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/zfs.ko
Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from /boot/kernel/opensolaris.ko.
symbols...done.
done.
Loaded symbols for /boot/kernel/opensolaris.ko
Reading symbols from /boot/kernel/if_zyd.ko...Reading symbols from /boot/kernel/if_zyd.ko.symbols...
done.
done.
Loaded symbols for /boot/kernel/if_zyd.ko
Reading symbols from /boot/kernel/wlan_amrr.ko...Reading symbols from /boot/kernel/wlan_amrr.ko.symb
ols...done.
done.
Loaded symbols for /boot/kernel/wlan_amrr.ko
Reading symbols from /boot/kernel/wlan.ko...Reading symbols from /boot/kernel/wlan.ko.symbols...done
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: