Return-Path: Subject: Re: [Bluez-users] MSI 6970 removing - kernel freeze From: Marcel Holtmann To: Pavel Ruzicka Cc: BlueZ Mailing List In-Reply-To: <200402210038.59119.pavouk@pavouk.org> References: <200402210038.59119.pavouk@pavouk.org> Content-Type: text/plain Message-Id: <1077320992.1433.18.camel@pegasus> Mime-Version: 1.0 Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Sat, 21 Feb 2004 00:49:53 +0100 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 ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users