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* [PATCH] 2.4.22 precedes 0.9.9 in module-init-tools of course
@ 2003-09-04 19:05 Pat LaVarre
  0 siblings, 0 replies; 2+ messages in thread
From: Pat LaVarre @ 2003-09-04 19:05 UTC (permalink / raw)
  To: linux-kernel

> From: linux-2.6.0-test4/Documentation/Changes
> o  module-init-tools      0.9.9                   # depmod -V

Newbie me, I was slow to imagine that depmod -V could be helpfully
reporting two independent series of version numbers, the older prefaced
with "depmod version ", the newer prefaced with "module-init-tools ".

I wrongly thought that 2.4.22 was 0.9.9 or better, even when I saw the
modprobe complaint:
QM_MODULES: Function not implemented

Therefore I propose the following patch.

Pat LaVarre

--- linux-2.6.0-test4/Documentation/Changes	2003-08-22 18:00:12.000000000 -0600
+++ linux/Documentation/Changes	2003-09-03 15:18:30.691529216 -0600
@@ -65,6 +65,9 @@
 o  procps                 2.0.9                   # ps --version
 o  oprofile               0.5.3                   # oprofiled --version
 
+Also upgrade your module-init-tools if your depmod -V gives you a
+"depmod version" rather than a "module-init-tools" version.
+
 Kernel compilation
 ==================
 




^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: [linux-usb-devel] [2.6-test] Bug in usb-storage or scsi?
@ 2003-09-11 20:05 Alan Stern
  2003-09-11 20:42 ` Pat LaVarre
  0 siblings, 1 reply; 2+ messages in thread
From: Alan Stern @ 2003-09-11 20:05 UTC (permalink / raw)
  To: Patrick Mansfield; +Cc: Matthew Dharm, USB Storage List, SCSI development list

On Wed, 10 Sep 2003, Patrick Mansfield wrote:

> On Wed, Sep 10, 2003 at 12:23:43PM -0400, Alan Stern wrote:
> 
> > Is there any feeling about how to handle these ongoing problems with the 
> > mode-sense cache page?  There doesn't seem to be any general solution that 
> > can work with all USB storage devices.  Some hang when asked to read the 
> > entire page; some hang when asked to read just part of the page; some hang 
> > when asked to read just the page header.
> > 
> > What do the SCSI folk have to say about it?

> I don't like per-host (or transport) flags or filters that cannot be
> modified. They make some sense for hosts that process the scsi commands
> (like a RAID card). If you moved a device from one transport to another,
> the commands sent to the device should not change: for example, you move
> an iSCSI attached device onto your local system via SPI.
> 
> IMO we ought to go with two new BFLAGS, one to block the MODE SENSE page 8
> (for the cache), and one to block the MODE SENSE page 0x3f (to check the
> write protect). 
> 
> A per host bflags could be added, and overwritten by per device (devinfo)
> settings. I'd rather we black list the broken ones but that does not
> appear to be practical. usb-storage could then set the per-host bflag to
> include the two new flags.

What do people think of just having per-device flags that the host driver
could set during the slave_configure() callback?  The point of these flags
is not to prevent bad commands from being sent to the device --
user-generated commands sent via sg should always be allowed.  Rather, the
point is to prevent sd.c from generating these commands in the first
place.  (Apparently the commands don't present a problem for sr.c.)

So for example, usb-storage could set the BFLAG to block MODE-SENSE page 8
for any disk-type device.  This isn't a perfect solution; consider an
iSCSI-attached device that is actually a usb-storage disk on some server.  
Nevertheless, this might take care of the majority of the problems we see.  
(I haven't seen any MODE-SENSE page 0x3f problems, but others have.)

Alan Stern


^ permalink raw reply	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2003-09-11 23:17 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
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2003-09-04 19:05 [PATCH] 2.4.22 precedes 0.9.9 in module-init-tools of course Pat LaVarre
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2003-09-11 20:05 [linux-usb-devel] [2.6-test] Bug in usb-storage or scsi? Alan Stern
2003-09-11 20:42 ` Pat LaVarre
2003-09-11 23:18   ` [PATCH] 2.4.22 precedes 0.9.9 in module-init-tools of course Pat LaVarre

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