Messages in this thread | | | Date | Sun, 13 Aug 2000 13:18:57 -0500 | From | srwalter@yahoo ... | Subject | [OOPS] with ns558 and usb-ohci |
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I can reproducibly cause a kernel oops on linux-2.4.0-test6. First, I modprobe usb-ohci; this works fine, and detects my USB controller. Then, I modprobe for ns558; this causes insmod to fail with an "Operation not permitted" error. After this, attempting to rmmod usb-ohci causes rmmod to segfault, and the attached kernel oops to appear in /var/log/messages. I am unsure if any other module combinations cause this. This bug has been around since at least -test4.
-- Steven Walter <srwalter@yahoo.com>
My grandfather invented Cliff's Notes. It all started back in 1912... well, to make a long story short... -- Stephen Wright ksymoops 2.3.4 on i586 2.4.0-test6. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.0-test6/ (default) -m /boot/System.map (specified)
Warning (compare_ksyms_lsmod): module usb-ohci is in lsmod but not in ksyms, probably no symbols exported Unable to handle kernel paging request at virtual address c482a844 c019a897 *pde = 03d9f063 Oops: 0002 CPU: 0 EIP: 0010:[pci_unregister_driver+11/76] EFLAGS: 00010282 eax: c482a840 ebx: c4823000 ecx: c020f148 edx: c021e8d0 esi: c4826940 edi: 00000000 ebp: bfffeb34 esp: c0859f88 ds: 0018 es: 0018 ss: 0018 Process rmmod (pid: 2139, stackpage=c0859000) Stack: c4823000 c4823000 c482619e c4826940 c011a00b c4823000 fffffff0 c07f9000 c01194d8 c4823000 00000000 c0858000 08055d6c 00000001 c010a493 bffffc9b 00000028 00000006 08055d6c 00000001 bfffeb34 00000081 0000002b 0000002b Call Trace: [<c4823000>] [<c4823000>] [<c482619e>] [<c4826940>] [free_module+27/156] [<c4823000>] [sys_delete_module+260/436] [<c4823000>] [system_call+51/64] Code: 89 50 04 89 02 8b 1d c8 e8 21 c0 81 fb c8 e8 21 c0 74 29 8d Using defaults from ksymoops -t elf32-i386 -a i386
Trace; c4823000 <[usbcore]__kstrtab_usb_bulk_msg+1c73/6c73> Trace; c4823000 <[usbcore]__kstrtab_usb_bulk_msg+1c73/6c73> Trace; c482619e <[usbcore]__kstrtab_usb_bulk_msg+4e11/6c73> Trace; c4826940 <[usbcore]__kstrtab_usb_bulk_msg+55b3/6c73> Trace; c4823000 <[usbcore]__kstrtab_usb_bulk_msg+1c73/6c73> Code; 00000000 Before first symbol 00000000 <_EIP>: Code; 00000000 Before first symbol 0: 89 50 04 mov %edx,0x4(%eax) Code; 00000003 Before first symbol 3: 89 02 mov %eax,(%edx) Code; 00000005 Before first symbol 5: 8b 1d c8 e8 21 c0 mov 0xc021e8c8,%ebx Code; 0000000b Before first symbol b: 81 fb c8 e8 21 c0 cmp $0xc021e8c8,%ebx Code; 00000011 Before first symbol 11: 74 29 je 3c <_EIP+0x3c> 0000003c Before first symbol Code; 00000013 Before first symbol 13: 8d 00 lea (%eax),%eax
1 warning issued. Results may not be reliable. [unhandled content-type:application/pgp-signature] | |