Re: USB changes.

From: Joe Altman (fj_at_panix.com)
Date: 04/28/05

  • Next message: Jonathan Noack: "Re: UPDATE: ATA mkIII official patches for releng_5" 
    Date: Thu, 28 Apr 2005 15:05:33 -0400
To: Julian Elischer <julian@elischer.org>

    On Thu, Apr 28, 2005 at 11:23:14AM -0700, Julian Elischer wrote:
    >
    > >+++
    > >
    > >Currently, I find my P4 hanging just after discovering the parallel
    > >port and mounting disk; in other words, just here:
    > >
    > >ppc0: parallel port not found.
    > >ad0: 28629MB <ST330620A> [58168/16/63] at ata0-master UDMA100
    > >
    > >but ->only<- when my Logitech USB mouse is plugged in. Now, if I
    > >unplug it and hit reset (not Ctrl-Alt-Del; the keyboard is frozen) the
    > >system boots, and I can obtain X w/ a functional mouse. Yesterday, of
    > >course, prior to the USB change the system did not hang.
    > >
    >
    > I saw this problem in testing ad THOUGHT I had checked in the fix..
    >
    > Can you confirm that usb.c ends with:
    > SYSINIT(usb_cold_explore, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_FIRST,
    > usb_cold_explore, NULL);

    Hmmm...

    /usr/src/lib/libusbhid/

    Nope..

    Aha...maybe this is it:

    /usr/src/usr.sbin/usbd/

    ll /usr/src/usr.sbin/usbd/

    2734320 -rw-r--r-- 1 root wheel 169 Apr 25 2001 Makefile
    2738254 -rw-r--r-- 1 root wheel 4460 Jun 22 2003 usbd.8
    2736938 -rw-r--r-- 1 root wheel 30079 Nov 29 2003 usbd.c
    2737339 -rw-r--r-- 1 root wheel 5046 Aug 27 2004 usbd.conf.5

    Is that the one?

    Here is a part of 'tail -25' on the file, showing the bottom:

    /* check the event queue */
                    if (handle_events && (FD_ISSET(fd, &r) || error == 0))
                    {
                            if (verbose >= 2)
                                    printf("%s: processing event queue
                    %son %s\n",
                                            __progname,
                                           (error? "":"due to timeout "),
                    USBDEV);
                            process_event_queue(fd);
                    }
            }
    }

    So no, this file doesn't end in what you ask; I can't see anywhere
    else it might live; is there some other usbd.c you need?

    > >I noticed that some code was changed in between my discovery of the
    > >hanging and my attempt to fix it:
    > >
    > >Apr 27 21:15 subr_bus.c
    > >
    > >but this change, and the subsequent world update, did not solve the
    > >issue of the hanging mouse.
    >
    > the changes that you are refering to include some to defer probing of the
    > USB 1.1 busses untill after the USB2.0 busses have been configured.

    Ah...okay; well, I was in the dark anyway, may as well whistle.

    > I'll see if I can duplicate yuor problem.. I tested with several USB 1.1
    > devices but a mounse was not amongst them.

    Okay; it may be a one off, relative to me only, as I've seen no other
    indications of issues. I am behind on my list reading, though.

    > I assume it works right if you remove the mouse before booting and reinsert
    > it after the kernel has booted?

    Yes; once I have a console, the mouse is detected:

    ums0: Logitech USB Receiver, rev 1.10/23.02, addr 2, iclass 3/1
    ums0: 7 buttons and Z dir.

    Then, it works in X just fine; I forgot to test it on the console. 

    -- 
I don't care what you think. This is not a stylishly insouciant stroll
out of the jungle, here. It's more like we've fallen out of our trees
and rolled, ***-naked before the entire galaxy, downhill. That, and
we seem to have a teensy problem lifting ourselves off the ground.
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