kern/38827: DIAGNOSTIC kernel crash with USB floppy/cdrom

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>Number:         38827
>Category:       kern
>Synopsis:       DIAGNOSTIC kernel crash with USB floppy/cdrom
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 02 08:30:00 +0000 2008
>Originator:     Takahiro Kambe
>Release:        NetBSD 4.0_STABLE
>Organization:
        
>Environment:
        
        
System: NetBSD calm.i.kisu.co.jp 4.0_STABLE NetBSD 4.0_STABLE (CALM) #43: Tue 
Dec 18 17:39:08 JST 2007 
sisbic-info%kisu.co.jp@localhost:/work/NetBSD-4/i386.obj/sys/arch/i386/compile/CALM
 i386
Architecture: i386
Machine: i386
>Description:
        DIAGNOSTIC kernel may crash with USB floppy/cdrom though INSTALL
        kernel boot fine.

panic: kernel diagnostic assertion "!cold" failed: file 
"/usr/src/sys/dev/scsipi/scsipi_base.c", line 391

        In the case of CDROM, I disabled BIOS's "USB Legacy Support" from
        "Enabled" to "KB/MS" or "Disabled", DIAGNOSTIC kernel boot fine.

        In the case of USB Floppy drive, it panics any setting of the BIOS.

>How-To-Repeat:
        Boot DIAGNOSTIC kernel with USB cdrom or floppy, especailly BIOS's
        "USB Legacy Support" to "Enabled".
>Fix:
        Unknown.

>Unformatted: