From: Diego Santa Cruz <Diego.SantaCruz@epfl.ch>
To: linux-kernel@vger.kernel.org
Subject: OOPS in 2.4.3-12 and 2.4.8
Date: Wed, 15 Aug 2001 11:36:13 +0200 [thread overview]
Message-ID: <3B7A428D.21E9EAC2@epfl.ch> (raw)
Hi,
I have experienced an OOPS while unloading the cdrom module. My system is an HP Omnibook 4150
laptop. I booted the standard 2.4.3-12 kernel of RedHat 7.1 without having the CDROM drive inserted.
If I load the cdrom and ide-cd modules (which are sometimes automatically loaded) and then unload
them I get an OOPS right after unloading cdrom. The bug is reproducible. I have also tried 2.4.8
(official kernel this time) and the problem also occurs (I can check for sure where and provide
ksymoops output if necessary).
Kernel command line: auto BOOT_IMAGE=rh-7.1 ro root=301 BOOT_FILE=/boot/vmlinuz-2.4.3-12
The oops analysis by ksymoops on kernel 2.4.3-12 gives:
ksymoops 2.4.0 on i686 2.4.3-12. Options used
-v /boot/vmlinux-2.4.3-12 (specified)
-k /home/sun1/dsanta/ksyms (specified)
-l /home/sun1/dsanta/modules (specified)
-o /lib/modules/2.4.3-12/ (specified)
-m /boot/System.map-2.4.3-12 (specified)
Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says c01af700, vmlinux says
c0151680. Ignoring ksyms_base entry
Warning (compare_maps): mismatch on symbol proc_irda , irda says d09358fc,
/lib/modules/2.4.3-12/kernel/net/irda/irda.o says d0934f3c. Ignoring
/lib/modules/2.4.3-12/kernel/net/irda/irda.o entry
Warning (compare_maps): mismatch on symbol nlmsvc_grace_period , lockd says d08f7994,
/lib/modules/2.4.3-12/kernel/fs/lockd/lockd.o says d08f6e00. Ignoring
/lib/modules/2.4.3-12/kernel/fs/lockd/lockd.o entry
Warning (compare_maps): mismatch on symbol nlmsvc_ops , lockd says d08f7990,
/lib/modules/2.4.3-12/kernel/fs/lockd/lockd.o says d08f6dfc. Ignoring
/lib/modules/2.4.3-12/kernel/fs/lockd/lockd.o entry
Warning (compare_maps): mismatch on symbol nlmsvc_timeout , lockd says d08f7998,
/lib/modules/2.4.3-12/kernel/fs/lockd/lockd.o says d08f6e04. Ignoring
/lib/modules/2.4.3-12/kernel/fs/lockd/lockd.o entry
Warning (compare_maps): mismatch on symbol nfs_debug , sunrpc says d08c7120,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6de0. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol nfsd_debug , sunrpc says d08c7124,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6de4. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol nlm_debug , sunrpc says d08c7128,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6de8. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_debug , sunrpc says d08c711c,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6ddc. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_garbage_args , sunrpc says d08c70fc,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6dbc. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_success , sunrpc says d08c70ec,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6dac. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol rpc_system_err , sunrpc says d08c7100,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6dc0. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol xdr_one , sunrpc says d08c70e4,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6da4. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol xdr_two , sunrpc says d08c70e8,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6da8. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol xdr_zero , sunrpc says d08c70e0,
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o says d08c6da0. Ignoring
/lib/modules/2.4.3-12/kernel/net/sunrpc/sunrpc.o entry
Warning (compare_maps): mismatch on symbol usb_devfs_handle , usbcore says d084dc80,
/lib/modules/2.4.3-12/kernel/drivers/usb/usbcore.o says d084d7a0. Ignoring
/lib/modules/2.4.3-12/kernel/drivers/usb/usbcore.o entry
Unable to handle kernel NULL pointer dereference at virtual address 00000008
c011a345
Oops: 0000
CPU: 0
EIP: 0010:[<c011a345>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00210246
eax: 00000000 ebx: 00000000 ecx: 00000000 edx: 00000000
esi: c19cd000 edi: 00000000 ebp: 00000000 esp: cbf63f7c
ds: 0018 es: 0018 ss: 0018
Process rmmod (pid: 2171, stackpage=cbf63000)
Stack: d08aa000 d08ae5bb 00000000 d08ae5fa 00000000 d08b0240 c011792e d08aa000
c19cd000 00000000 c0116e19 d08aa000 00000000 cbf62000 bffff6b5 00000001
bfffe458 c0106d2b bffff6b5 0805f168 00000131 bffff6b5 00000001 bfffe458
Call Trace: [<d08aa000>] [<d08ae5bb>] [<d08ae5fa>] [<d08b0240>] [<c011792e>]
[<d08aa000>] [<c0116e19>] [<d08aa000>] [<c0106d2b>]
Code: 8b 53 08 8b 43 04 89 50 04 89 02 8b 0d 94 5c 2a c0 51 8b 13
>>EIP; c011a345 <unregister_sysctl_table+5/30> <=====
Trace; d08aa000 <[serial_cs].data.end+4021/4081>
Trace; d08ae5bb <[cdrom]cdrom_sysctl_unregister+b/10>
Trace; d08ae5fa <[cdrom]cdrom_exit+1a/1f>
Trace; d08b0240 <[cdrom].rodata.start+1a20/1a5f>
Trace; c011792e <free_module+1e/d0>
Trace; d08aa000 <[serial_cs].data.end+4021/4081>
Trace; c0116e19 <sys_delete_module+109/1e0>
Trace; d08aa000 <[serial_cs].data.end+4021/4081>
Trace; c0106d2b <system_call+33/38>
Code; c011a345 <unregister_sysctl_table+5/30>
00000000 <_EIP>:
Code; c011a345 <unregister_sysctl_table+5/30> <=====
0: 8b 53 08 mov 0x8(%ebx),%edx <=====
Code; c011a348 <unregister_sysctl_table+8/30>
3: 8b 43 04 mov 0x4(%ebx),%eax
Code; c011a34b <unregister_sysctl_table+b/30>
6: 89 50 04 mov %edx,0x4(%eax)
Code; c011a34e <unregister_sysctl_table+e/30>
9: 89 02 mov %eax,(%edx)
Code; c011a350 <unregister_sysctl_table+10/30>
b: 8b 0d 94 5c 2a c0 mov 0xc02a5c94,%ecx
Code; c011a356 <unregister_sysctl_table+16/30>
11: 51 push %ecx
Code; c011a357 <unregister_sysctl_table+17/30>
12: 8b 13 mov (%ebx),%edx
16 warnings issued. Results may not be reliable.
--
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Diego Santa Cruz mailto:Diego.Santacruz@epfl.ch
Signal Processing Laboratory (LTS) http://ltswww.epfl.ch/~dsanta
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