On Wed, Aug 01, 2007 at 10:02:30AM +0200, Mariusz Kozlowski wrote: > Then reattaching a usb mouse caused this (only once) > > usb 2-1: USB disconnect, address 2 > BUG: atomic counter underflow at: > [<c010456a>] show_trace_log_lvl+0x1a/0x30 > [<c010508d>] show_trace+0x12/0x14 > [<c01051e0>] dump_stack+0x15/0x17 > [<c01418cf>] __free_pages+0x50/0x52 > [<c01418f0>] free_pages+0x1f/0x21 > [<c010783d>] dma_free_coherent+0x43/0x9c > [<c0315067>] hcd_buffer_free+0x43/0x6a > [<c030b2b4>] usb_buffer_free+0x23/0x29 > [<c0346db4>] hid_free_buffers+0x23/0x71 > [<c0346eb2>] hid_disconnect+0xb0/0xc8 > [<c0313676>] usb_unbind_interface+0x30/0x72 > [<c02c6df0>] __device_release_driver+0x6a/0x92 > [<c02c71c3>] device_release_driver+0x20/0x36 > [<c02c6736>] bus_remove_device+0x62/0x85 > [<c02c49f8>] device_del+0x16d/0x27c > [<c0310f25>] usb_disable_device+0x7a/0xe2 > [<c030d0bc>] usb_disconnect+0x94/0xde > [<c030e030>] hub_thread+0x2fe/0xc1b > [<c0128aee>] kthread+0x36/0x58 > [<c0104233>] kernel_thread_helper+0x7/0x14 > ======================= > uhci_hcd 0000:00:0c.0: dma_pool_free buffer-32, 6b6b6b6b/6b6b6b6b (bad dma) > > Every new try shows: > > usb 2-1: new low speed USB device using uhci_hcd and address 3 > usb 2-1: new device found, idVendor=046d, idProduct=c00e > usb 2-1: new device strings: Mfr=1, Product=2, SerialNumber=0 > usb 2-1: Product: USB-PS/2 Optical Mouse > usb 2-1: Manufacturer: Logitech > usb 2-1: configuration #1 chosen from 1 choice > input: Logitech USB-PS/2 Optical Mouse as /class/input/input9 > input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on > usb-0000:00:0c.0-1 > usb 2-1: USB disconnect, address 3 > uhci_hcd 0000:00:0c.0: dma_pool_free buffer-32, 6b6b6b6b/6b6b6b6b (bad dma) > > But mouse works ok.
Can you see if the patch posted by Jiri fixes this or not? thanks, greg k-h ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel