From: Marcel Holtmann <marcel@holtmann.org>
To: Pavel Ruzicka <pavouk@pavouk.org>
Cc: BlueZ Mailing List <bluez-users@lists.sourceforge.net>
Subject: Re: [Bluez-users] MSI 6970 removing - kernel freeze
Date: Sat, 21 Feb 2004 00:49:53 +0100 [thread overview]
Message-ID: <1077320992.1433.18.camel@pegasus> (raw)
In-Reply-To: <200402210038.59119.pavouk@pavouk.org>
Hi Pavel,
> When I have hci0 up and I remove my USB MSI 6970 dongle, then kernel freezes.
>
> This is copied from the screen:
> ----------------------------------------------------------------------
> kernel panic: fatal exception in interrupt
> In interrupt handler - not syncing
> EIP is at uhci_remove_pending_qhs+0x61/0xc0 [uhci_hcd]
> ----------------------------------------------------------------------
this is a known problem with UHCI USB host controllers, but not our
problem. Alan Stern has patches and fixes for it and I think at least
with 2.6.4 this problem should be gone. See the BlueZ and USB mailing
list archives for more details.
> When I start computer, hci0 is down. I run hciconfig hci0 up.
> After this I have in dmesg this:
> -----------------------------------------------------------------------
> drivers/usb/core/urb.c: usb_submit_urb: bogus endpoint 3-IN on
> usb-0000:00:07.3-1 (bad maxpacket 0)
> hci_usb_isoc_rx_submit: hci0 isoc rx submit failed urb c71c1a14 err -90
> drivers/usb/core/urb.c: usb_submit_urb: bogus endpoint 3-IN on
> usb-0000:00:07.3-1 (bad maxpacket 0)
> hci_usb_isoc_rx_submit: hci0 isoc rx submit failed urb c71c1a14 err -90
> -----------------------------------------------------------------------
This one is new and Todd E. Johnson looked at it, but I have no time to
investigate on this problem. The only solution I can tell you is to
disable CONFIG_BT_HCIUSB_SCO.
> I have linux Mandrake 9.2 with vanilla kernel 2.6.2.
Try 2.6.3. Maybe it is already fixed.
> Is this kernel or hardware bug?
It's a kernel problem.
> Is this problem of USB or Bluetooth kernel module?
I am quite sure that this is an USB problem.
Regards
Marcel
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next prev parent reply other threads:[~2004-02-20 23:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-20 23:38 [Bluez-users] MSI 6970 removing - kernel freeze Pavel Ruzicka
2004-02-20 23:49 ` Marcel Holtmann [this message]
2004-02-22 12:06 ` [Bluez-users] " Pavel Ruzicka
2004-02-22 12:11 ` Pavel Ruzicka
2004-02-22 12:17 ` Marcel Holtmann
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