On Fri, 2008-10-24 at 09:05 +0200, Matthias Kaehlcke wrote: > hi, > > inserting a Verbatim 4GB USB stick in a ep9307 based device running > kernel 2.6.27 results in the following Oops: > > [42949395.050000] usb 1-3: new full speed USB device using ep93xx-ohci > and address 2 > [42949395.250000] usb 1-3: configuration #1 chosen from 1 choice > [42949395.260000] scsi0 : SCSI emulation for USB Mass Storage devices > [42949395.270000] usb 1-3: New USB device found, idVendor=13fe, > idProduct=1f23 > [42949395.280000] usb 1-3: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [42949395.280000] usb 1-3: Product: STORE N GO > [42949395.300000] usb 1-3: Manufacturer: Verbatim > [42949395.310000] usb 1-3: SerialNumber: 078813D90478 > [42949400.280000] Unable to handle kernel NULL pointer dereference at > virtual address 00000003 > [42949400.280000] pgd = c0648000 > [42949400.300000] [00000003] *pgd=c0647031, *pte=00000000, *ppte=00000000 > [42949400.300000] Internal error: Oops: 13 [#1] PREEMPT > [42949400.300000] Modules linked in: > [42949400.300000] CPU: 0 Not tainted (2.6.27 #3) > [42949400.300000] PC is at scsi_calculate_bounce_limit+0x3c/0x44 Best guess is this line: if (host_dev && host_dev->dma_mask) bounce_limit = *host_dev->dma_mask; I'd guess host_dev->dma_mask contains 0x3 ... could this be some sort of ARM setup problem? James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
