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

>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
System: NetBSD 4.0_STABLE NetBSD 4.0_STABLE (CALM) #43: Tue 
Dec 18 17:39:08 JST 2007
Architecture: i386
Machine: i386
        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.

        Boot DIAGNOSTIC kernel with USB cdrom or floppy, especailly BIOS's
        "USB Legacy Support" to "Enabled".


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