I've got a raid0 partition (2*100Go) that is correctly mounted by 2.5.44 but
2.5.45 compiled with the same configuration gives me that:
Unable to handle kernel NULL pointer dereference at virtual address 00000204
c0292091
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0060:[<c0292091>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: c03fec14 ebx: 00000200 ecx: 00000000 edx: 00001000
esi: 0000001a edi: cf8a0c00 ebp: 00002100 esp: cf5abedc
ds: 0068 es: 0068 ss: 0068
Stack: 00002100 00000001 00002100 00000000 cf8a0c00 cf587cf4 c0292ea5 00002100
bffffaa0 cf5abf08 00000060 00000301 00000000 00000000 00002329 000061b0
00000001 00000000 00000006 00002100 00000000 00000000 00000000 00000000
Call Trace: [<c0292ea5>] [<c020d473>] [<c0155cda>] [<c01075e3>]
Code: 0f b7 43 04 c1 e0 08 66 0b 43 08 74 38 66 39 e8 74 33 0f b7
>>EIP; c0292091 <autostart_array+91/120> <=====
>>eax; c03fec14 <pending_raid_disks+0/8>
Trace; c0292ea5 <md_ioctl+505/5c0>
Trace; c020d473 <blkdev_ioctl+b3/441>
Trace; c0155cda <sys_ioctl+ea/250>
Trace; c01075e3 <syscall_call+7/b>
Code; c0292091 <autostart_array+91/120>
00000000 <_EIP>:
Code; c0292091 <autostart_array+91/120> <=====
0: 0f b7 43 04 movzwl 0x4(%ebx),%eax <=====
Code; c0292095 <autostart_array+95/120>
4: c1 e0 08 shl $0x8,%eax
Code; c0292098 <autostart_array+98/120>
7: 66 0b 43 08 or 0x8(%ebx),%ax
Code; c029209c <autostart_array+9c/120>
b: 74 38 je 45 <_EIP+0x45>
Code; c029209e <autostart_array+9e/120>
d: 66 39 e8 cmp %bp,%ax
Code; c02920a1 <autostart_array+a1/120>
10: 74 33 je 45 <_EIP+0x45>
Code; c02920a3 <autostart_array+a3/120>
12: 0f b7 00 movzwl (%eax),%eax
3 warnings issued. Results may not be reliable.
my raid partition is from two hard drives hde and hdg plugged with hpt370 chip
(included in compilation)
I also patched arch/i386/Makefile to use gcc-3.2 -march=athlon-xp option.
Thanks in advance
Mathieu Segaud