On Sat, 14 Apr 2007, Alan Stern wrote:
> On Sat, 14 Apr 2007, Matthias Andree wrote:
>
> > I arrived at the computer today, to find khubd in D state again, but
> > unfortunately, it does not show up in Alt-SysRq-T output. Do kernel
> > threads show up there at all? 2.6.18
On Mon, 09 Apr 2007, Alan Stern wrote:
> On Mon, 9 Apr 2007, Matthias Andree wrote:
>
> > Please Cc: me on replies, as I read linux-kernel sporadically and am not
> > subscribed to linux-usb-devel at all.
> >
> > Greetings,
> >
> > I have seen my USB
et some detail out of the situation. Any specific kernel debugging
options that might help me debug this further?
Thanks,
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x27;t work, the first rmmod process
locks up, the next fails with EBUSY. I'll try to compile a kernel that
supports rmmod -f but I'm not too optimistic ATM.
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Thi
On Fri, 26 Mar 2004, Alan Stern wrote:
> On Fri, 26 Mar 2004, Matthias Andree wrote:
>
> > So can the initialization sequence be run after "babble" was detected on
> > a VIA controller that locked up?
>
> I'm not sure what initialization you're
On Fri, 26 Mar 2004, Alan Stern wrote:
> On Fri, 26 Mar 2004, Matthias Andree wrote:
>
> > Although it appears to contain Alan's patch, it doesn't quite work. It's
> > OK as long as I don't run a scanner application software and usbmodules
> > (old ve
David Brownell <[EMAIL PROTECTED]> writes:
> Matthias Andree wrote:
>>>
>>>What I think I'll do is wrap up Alan's more-correct patch with
>>>a minor locking update that's been in my queue for some time,
>>>and ask you to test the combine
config, yes, no)
@@ -60,7 +61,8 @@
AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
-AC_OUTPUT([Makefile])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
AC_MSG_RESULT([
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ciated, and I'll be happy to test your patch.
Thank you,
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re seeing.
I feel rather uncomfortable with the situation that one user-space USB
program can instrument the kernel to screw another user-space program
terminally. I wonder if the /proc/bus/usb stuff should lock out other
access while some access is going on.
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ems that the kernel cannot help
much. The remaining question is if it's ok for usbmodules to interrupt
an application so hard it must be restarted.
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e claimed.
> + * It would interfere with other drivers' operations, and if an
> + * interface is claimed by usbfs it would cause deadlock. */
> + if (actconfig) {
> + int i;
> +
> + for (i = 0; i < actconfig->desc.bNumInterfaces;
rm this. Alan's patch
should help me with that.
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On Fri, 19 Mar 2004, Matthias Andree wrote:
> I'll now see what 2.4 does and spam Yet Another Log into this list.
Linux 2.4 doesn't create hotplug events, unlike 2.6, so it doesn't get
to run usbmodules, hence no control junk on the wire while bulk
transfers are in progress.
On Thu, 18 Mar 2004, Alan Stern wrote:
> On Thu, 18 Mar 2004, David Brownell wrote:
>
> > Matthias Andree wrote:
> > > I call it excessive because I wonder if it's correct to feed a hotplug
> > > event just because $USER_SPACE_PROGRAM has decided to open a
for 2.4 coldplug (2.4
hotplug untested). coldplug = device present at kernel boot-up.
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Description: application/gunzip
x27;t know about these companionships between EHCI and UHCI ports -
are the ports virtually "handed over" between EHCI and UHCI depending
on whether the bus talks 1.5, 12 or 480 Mbit/s?
2b. Or might speed negotiations/switches cause hotplug events in 2.6?
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. sudo chmod 0666 /proc/bus/usb/003/002
happens to be in my shell's history. :)
> In any case, the control requests being submitted by the hotplug program
> are completely unnecessary. They are asking the scanner to transmit data
> which the kernel already knows and makes available t
On Wed, 17 Mar 2004, Alan Stern wrote:
> Another possibility (should have thought of this before) is that the
> control transfers come from a different process, maybe a child of the one
> you're tracing. Not that it really matters...
Hotplug would be the only interesting one running at the sam
eated 3 times
0:46:38 kernel: usb 3-2: usb_disable_device nuking non-ep0 URBs
0:46:38 kernel: usb 3-2: unregistering interface 3-2:1.0
0:46:38 kernel: bus usb: remove device 3-2:1.0
0:46:38 kernel: PM: Removing info for usb:3-2:1.0
0:46:38 kernel: drivers/usb/core/usb.c: usb_hotplug
0:46:43 kernel
d.
> yet, can you post both the strace output and the dmesg output for the same
> run?
Not on the list, too large. I can show the URL of a bzip2ed copy of the
logs on some FTP/HTTP server once I've had the leisure to reboot the
machine several times, and I can mail them off-list.
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VFS_BULK, 0xbfffe220) = 4096
8096 ioctl(11, USBDEVFS_BULK, 0xbfffe220) = 4096
8096 ioctl(11, USBDEVFS_BULK, 0xbfffe220) = 4096
8096 ioctl(11, USBDEVFS_BULK
Anyways, thank you so far!
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Matthias Andree
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latency 32, IRQ 21
Memory at eb80 (32-bit, non-prefetchable) [size=256]
Capabilities: [80] Power Management version 2
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Matthias Andree
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