Hi, On Sun, Jan 12, 2003 at 09:49:14AM -0500, Carter Brey wrote: > Running RH 8 distro with upgraded 2.4.19 kernel on a Dell Inspiron 7500 > (PIII). > > I have an Epson GT-8500 scsi scanner attached to the laptop with an > Adaptec 1460A SlimScsi PC card adpater. I use the aha152x kernel module > as a driver.
[...] > Jan 7 15:17:59 localhost cardmgr[455]: socket 0: Adaptec APA-1460 SlimSCSI > Jan 7 15:17:59 localhost cardmgr[455]: executing: 'modprobe aha152x_cs' aha152x_cs? Isn't the name of the module "aha152x"? > Jan 7 15:21:48 localhost kernel: Unable to handle kernel NULL pointer > dereference at virtual address 0000001b > Jan 7 15:21:48 localhost kernel: printing eip: > Jan 7 15:21:48 localhost kernel: cd0a4a21 > Jan 7 15:21:48 localhost kernel: *pde = 00000000 > Jan 7 15:21:48 localhost kernel: Oops: 0000 > Jan 7 15:21:48 localhost kernel: CPU: 0 > Jan 7 15:21:48 localhost kernel: EIP: 0010:[<cd0a4a21>] Not tainted Kernel oops. Run the output through ksymoops and contact the linux kernel mailing list. But check the archives before, maybe it's already solved in a current kernel. It may well be triggered by the driver not expecting "big" buffers. However, i thought this kind of bug has been solved long time ago. Anyway, you could try seeting the environment variable SANE_SG_BUFFERSIZE to 32768 before running a SANE frontend to decrease the buffer size. Bye, Henning