I got the following oops, i can reproduce it: my network: laptop+modem ----- mybox I switch on internet connection, surf a little(network traffic), then i shut down the modem, and one minute later when a swap request should be done, the oops occurs. My box is not heavily memory stressed when the oops occurs. I can also reproduce it by leaving the X screensaver running after 1 minute of inactivity. the oops: ksymoops 2.3.4 on i686 2.4.0-test9. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.0-test9/ (default) -m /boot/System.map (specified) invalid operand: 0000 CPU: 0 EIP: 0010:[<c0132425>] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00210082 eax: 0000001c ebx: c482f980 ecx: 00200002 edx: 02000000 esi: c1285a80 edi: 00000002 ebp: 00000001 esp: c0235ee0 ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 0, stackpage=c0235000) Stack: c01ef045 c01ef37a 000002da c0161e81 c482f980 00000001 c1285a80 00200046 c12bae60 c029a920 c018315a c1285a80 00000001 c029aa44 00000000 c1285a80 c029a960 c018a114 00000001 c12bae60 c029a960 c12bae60 00200282 c0184a43 Call Trace: [<c01ef045>] [<c01ef37a>] [<c0161e81>] [<c018315a>] [<c018a114>] [<c0184a43>] [<c018a0b0>] [<c010be51>] [<c010c036>] [<c0108960>] [<c0108960>] [<c010a7b8>] [<c0108960>] [<c0108960>] [<c0100018>] [<c010898d>] [<c01089f2>] [<c0105000>] [<c01001d0>] Code: 0f 0b 83 c4 0c c3 90 57 56 53 8b 74 24 10 8b 54 24 14 85 d2 >>EIP; c0132425 <end_buffer_io_bad+45/4c> <===== Trace; c01ef045 <tvecs+36fd/b8b8> Trace; c01ef37a <tvecs+3a32/b8b8> Trace; c0161e81 <end_that_request_first+61/b8> Trace; c018315a <ide_end_request+32/84> Trace; c018a114 <ide_dma_intr+64/9c> Trace; c0184a43 <ide_intr+12f/198> Trace; c018a0b0 <ide_dma_intr+0/9c> Trace; c010be51 <handle_IRQ_event+4d/78> Trace; c010c036 <do_IRQ+a6/f4> Trace; c0108960 <default_idle+0/34> Trace; c0108960 <default_idle+0/34> Trace; c010a7b8 <ret_from_intr+0/20> Trace; c0108960 <default_idle+0/34> Trace; c0108960 <default_idle+0/34> Trace; c0100018 <startup_32+18/cc> Trace; c010898d <default_idle+2d/34> Trace; c01089f2 <cpu_idle+3e/54> Trace; c0105000 <empty_bad_page+0/1000> Trace; c01001d0 <L6+0/2> Code; c0132425 <end_buffer_io_bad+45/4c> 00000000 <_EIP>: Code; c0132425 <end_buffer_io_bad+45/4c> <===== 0: 0f 0b ud2a <===== Code; c0132427 <end_buffer_io_bad+47/4c> 2: 83 c4 0c add $0xc,%esp Code; c013242a <end_buffer_io_bad+4a/4c> 5: c3 ret Code; c013242b <end_buffer_io_bad+4b/4c> 6: 90 nop Code; c013242c <end_buffer_io_async+0/d8> 7: 57 push %edi Code; c013242d <end_buffer_io_async+1/d8> 8: 56 push %esi Code; c013242e <end_buffer_io_async+2/d8> 9: 53 push %ebx Code; c013242f <end_buffer_io_async+3/d8> a: 8b 74 24 10 mov 0x10(%esp,1),%esi Code; c0132433 <end_buffer_io_async+7/d8> e: 8b 54 24 14 mov 0x14(%esp,1),%edx Code; c0132437 <end_buffer_io_async+b/d8> 12: 85 d2 test %edx,%edx Aiee, killing interrupt handler Kernel panic: Attempted to kill the idle task! -- %--IRIN->-Institut-de-Recherche-en-Informatique-de-Nantes-----------------% % FORT David, % % 7 avenue de la morvandière 0240726275 % % 44470 Thouare, France [EMAIL PROTECTED] % % ICU:54999224 AIM: enlighted popo [EMAIL PROTECTED] % %--LINUX-HTTPD-PIOGENE----------------------------------------------------% % -datamining | .~. % % -networking | /V\ L I N U X % % -opensource | // \\ >Fear the Penguin< % % -GNOME/enlightenment/GIMP | /( )\ % % feel enlighted.... | ^^-^^ % %-------------------------------------------------------------------------% - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/