Hi all, As there were no further responses to the previous oops i posted, I have captured another oops. Decode follows. The machine in question runs 2.2.18 and 3rd-party Compushack FDDI driver (v2.1.11 b25) as module [csf]. Comments or bugfixes anyone? Regards, Udo. ksymoops 2.3.5 on i686 2.2.18. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.2.18/ (default) -m /boot/System.map-2.2.18 (specified) VM: Removing swap cache page with zero inode hash on page 00048000 Unable to handle kernel NULL pointer dereference at virtual address 00000000 current->tss.cr3 = 0330b000, %cr3 = 0330b000 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<00000000>] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010003 eax: c0122aa8 ebx: 00000098 ecx: 00000020 edx: 0000001a esi: 00048000 edi: c3e30124 ebp: 00000000 esp: c3e35c0c ds: 0018 es: 0018 ss: 0018 Process mrtg (pid: 18154, process nr: 54, stackpage=c3e35000) Stack: 00000203 fffffff4 c011a696 c1824000 d6fe93c0 08048000 d5986cc0 00099000 c1824000 00000000 000e1000 c330b080 00000000 080e1000 c330b080 c011c256 d5986cc0 08048000 00099000 c3e34000 c3e34000 c01fe1e3 d2034800 d6fe9b40 Call Trace: [<c011a696>] [<c011c256>] [<c01fe1e3>] [<c012a996>] [<c01fe1e3>] [<c012aab9>] [<c01fe1e3>] [<c013397a>] [<c01178f4>] [<c017dac8>] [<d8870000>] [<d8851d26>] [<d886cea0>] [<d8870000>] [<d8870768>] [<d8855836>] [<c011d280>] [<c01fe1e0>] [<c012a8e2>] [<c012b057>] [<c012b2af>] [<c012b2d1>] [<c0108367>] [<c01093ac>] Code: Bad EIP value. exit_mmap: map count is 32 >>EIP; 00000000 Before first symbol Trace; c011a696 <zap_page_range+13e/1bc> Trace; c011c256 <exit_mmap+ae/108> Trace; c01fe1e3 <cprt+523/b316> Trace; c012a996 <exec_mmap+3a/fc> Trace; c01fe1e3 <cprt+523/b316> Trace; c012aab9 <flush_old_exec+61/1d8> Trace; c01fe1e3 <cprt+523/b316> Trace; c013397a <load_elf_binary+60a/d94> Trace; c01178f4 <get_fast_time+c/10> Trace; c017dac8 <netif_rx+14/b4> Trace; d8870000 <SeverDeco+57c4/????> Trace; d8851d26 <[csf]IndicateReception+12a/138> Trace; d886cea0 <SeverDeco+2664/????> Trace; d8870000 <SeverDeco+57c4/????> Trace; d8870768 <SeverDeco+5f2c/????> Trace; d8855836 <[csf]FDDI_MAC_In_NoDelay+1e/28> Trace; c011d280 <do_generic_file_read+5dc/5e8> Trace; c01fe1e0 <cprt+520/b316> Trace; c012a8e2 <read_exec+c2/13c> Trace; c012b057 <search_binary_handler+47/120> Trace; c012b2af <do_execve+17f/1e0> Trace; c012b2d1 <do_execve+1a1/1e0> Trace; c0108367 <sys_execve+2f/58> Trace; c01093ac <system_call+34/38> - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org