Hi all,
here are my $0.02 regarding loop in 2.4.3.
1. mounted file
mount -t iso9660 -o loop file.img /mnt/cdrom
worked o.k.
2. unmounted
umount /mnt/cdrom
worked o.k.
3. mounted file
mount -t iso9660 -o loop file.img /mnt/cdrom
worked o.k.
4. tried to unmount
umount /mnt/cdrom
got oops:
=====================
Apr 13 20:50:03 cs865114-a kernel: Unable to handle kernel paging request at virtual
address 7e92bfd7
Apr 13 20:50:03 cs865114-a kernel: printing eip:
Apr 13 20:50:03 cs865114-a kernel: c0142cde
Apr 13 20:50:03 cs865114-a kernel: *pde = 00000000
Apr 13 20:50:03 cs865114-a kernel: Oops: 0000
Apr 13 20:50:03 cs865114-a kernel: CPU: 0
Apr 13 20:50:03 cs865114-a kernel: EIP: 0010:[invalidate_list+142/176]
Apr 13 20:50:03 cs865114-a kernel: EFLAGS: 00210203
Apr 13 20:50:03 cs865114-a kernel: eax: d26cc400 ebx: 7e92bfd7 ecx: d26cc400
edx: 00000000
Apr 13 20:50:03 cs865114-a kernel: esi: d3ab4220 edi: 7e92bfd7 ebp: c2433f14
esp: c2433eecApr 13 20:50:03 cs865114-a kernel: ds: 0018 es: 0018 ss: 0018
Apr 13 20:50:03 cs865114-a kernel: Process umount (pid: 30929, stackpage=c2433000)Apr
13 20:50:03 cs865114-a kernel: Stack: 00000000 00000000 c2433f14 c2433f14 d26cc400
df9bf650 c0142d22 c0220e68Apr 13 20:50:03 cs865114-a kernel: d26cc400 c2433f14
c2433f14 c2433f14 d26cc400 cb165220 df9bf5a0 df9bf650Apr 13 20:50:03 cs865114-a
kernel: c0135219 d26cc400 c013a662 d6636640 00000700 00200282 00000000
d141c4c0Apr 13 20:50:03 cs865114-a kernel: Call Trace: [<df9bf650>]
[invalidate_inodes+34/96] [<df9bf5a0>] [<df9bf650>] [kill_super+121/288]
[path_walk+1922/2160] [do_umount+449/464]
Apr 13 20:50:03 cs865114-a kernel: [sys_umount+218/272] [filp_close+83/96]
[sys_oldumount+12/16] [system_call+51/56]
Apr 13 20:50:03 cs865114-a kernel:
Apr 13 20:50:03 cs865114-a kernel: Code: 8b 3b 3b 5c 24 1c 75 9a 8b 04 24 29 05 a4 d7
27 c0 8b 44 24
===========================================
ksymoops:
===========================================
ksymoops 2.3.4 on i686 2.4.3. Options used
-v /usr/src/linux/vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.3/ (default)
-m /usr/src/linux/System.map (specified)
Apr 13 20:50:03 cs865114-a kernel: Unable to handle kernel paging request at virtual
address 7e92bfd7
Apr 13 20:50:03 cs865114-a kernel: c0142cde
Apr 13 20:50:03 cs865114-a kernel: *pde = 00000000
Apr 13 20:50:03 cs865114-a kernel: Oops: 0000
Apr 13 20:50:03 cs865114-a kernel: CPU: 0
Apr 13 20:50:03 cs865114-a kernel: EIP: 0010:[invalidate_list+142/176]
Apr 13 20:50:03 cs865114-a kernel: EFLAGS: 00210203
Apr 13 20:50:03 cs865114-a kernel: eax: d26cc400 ebx: 7e92bfd7 ecx: d26cc400
edx: 00000000
Apr 13 20:50:03 cs865114-a kernel: esi: d3ab4220 edi: 7e92bfd7 ebp: c2433f14
esp: c2433eecApr 13 20:50:03 cs865114-a kernel: ds: 0018 es: 0018 ss: 0018
Apr 13 20:50:03 cs865114-a kernel: Process umount (pid: 30929, stackpage=c2433000)Apr
13 20:50:03 cs865114-a kernel: Stack: 00000000 00000000 c2433f14 c2433f14 d26cc400
df9bf650 c0142d22 c0220e68Apr 13 20:50:03 cs865114-a kernel: d26cc400 c2433f14
c2433f14 c2433f14 d26cc400 cb165220 df9bf5a0 df9bf650Apr 13 20:50:03 cs865114-a
kernel: c0135219 d26cc400 c013a662 d6636640 00000700 00200282 00000000
d141c4c0Apr 13 20:50:03 cs865114-a kernel: Call Trace: [<df9bf650>]
[invalidate_inodes+34/96] [<df9bf5a0>] [<df9bf650>] [kill_super+121/288]
[path_walk+1922/2160] [do_umount+449/464]
Apr 13 20:50:03 cs865114-a kernel: Code: 8b 3b 3b 5c 24 1c 75 9a 8b 04 24 29 05 a4 d7
27 c0 8b 44 24
Using defaults from ksymoops -t elf32-i386 -a i386
Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: 8b 3b mov (%ebx),%edi
Code; 00000002 Before first symbol
2: 3b 5c 24 1c cmp 0x1c(%esp,1),%ebx
Code; 00000006 Before first symbol
6: 75 9a jne ffffffa2 <_EIP+0xffffffa2> ffffffa2
<END_OF_CODE+276b3b43/????>
Code; 00000008 Before first symbol
8: 8b 04 24 mov (%esp,1),%eax
Code; 0000000b Before first symbol
b: 29 05 a4 d7 27 c0 sub %eax,0xc027d7a4
Code; 00000011 Before first symbol
11: 8b 44 24 00 mov 0x0(%esp,1),%eax
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