From owner-freebsd-hackers@FreeBSD.ORG  Sun Feb 27 08:20:42 2005
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Date: Sun, 27 Feb 2005 03:20:40 -0500
From: "Peter C. Lai" <sirmoo@cowbert.2y.net>
To: ALeine <aleine@austrosearch.net>
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cc: freebsd-hackers@freebsd.org
Subject: Re: sandisk cruzer mini quirks [failure] on RELENG_4
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On Fri, Feb 25, 2005 at 10:03:55AM -0800, ALeine wrote:
> sirmoo@cowbert.2y.net wrote: 
> 
> > I have a 512mb version of the SanDisk Cruzer Mini keychain drive.
> > ProductId = 0x5150 (VendorID=0x0781). I am unable to correctly
> > get it to stop crashing the system when using cp(1) to copy large
> > files to it.
> > I patched /usr/src/sys/dev/usb/umass.c as:
> > 
> > if (UGETW(dd->idVendor) == USB_VENDOR_SANDISK &&
> >		  (UGETW(dd->idProduct) == 0x5150) {
> >	  sc->proto = UMASS_PROTO_SCSI | UMASS_PROTO_BBB;
> >	  sc->quirks |= IGNORE_RESIDUE;
> > }
> 
> Try extending da_quirk_table in sys/cam/scsi/scsi_da.c with an
> entry like this:
> 
> {
>         /*
>          * SanDisk Cruzer Mini 512MB
>          */
>          {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Cruzer Mini", "*"},
>          /*quirks*/ DA_Q_NO_SYNC_CACHE
> }
> 

I did this as the first hack. It made the problem worse. I'll try patching both
umass.c and scsi_da.c maybe they will have some sort of synergistic effect.
maybe i should just bite the bullet and upgrade the box to 5.3.

pete

-- 
Peter C. Lai
University of Connecticut
Dept. of Molecular and Cell Biology
Yale University School of Medicine
SenseLab | Research Assistant
http://cowbert.2y.net/