Opss! on 2.5.6 with ReiserFS

I have got oops at boot time from 2.5.6-pre3 and 2.5.6 on system with reiserfs root filesystem on ide. Oops occurs
during attempt to mount /. No modules in kernel.
2.5.6-pre2 was okay.

2.5.6:

Unable to handle kernel NULL pointer dereference at virtual address 00000010
c012cae6
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<c012cae6>]    Not tainted

Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010292
eax: d8802000 ebx: 0000000f ecx: 00000009 edx: 00000000
esi: 00000009 edi: 00002012 ebp: 00000000 esp: c143bd7c
ds: 0018 es: 0018 ss: 0018

Stack: 00001000 00002012 00000000 d7e9a800 c0123f4b c012cfdb 00000000 00002012
       00001000 d7e9a800 d7e54000 d88133ec c012d19c 00000000 00002012 00001000
       d7e9a800 c018cb53 00000000 00002012 00001000 00000400 00000000 d7e9a954
Call Trace: [<c0123f4b>] [<c012cfdb>] [<c012d19c>] [<c018cb53>] [<c012c480>]
   [<c017f486>] [<c017fd43>] [<c0195402>] [<c0130329>] [<c0180112>] [<c017fc1c>]
   [<c01304cf>] [<c013ecb8>] [<c013ef6e>] [<c013edd4>] [<c013f2e0>] [<c01051e9>]
   [<c0105028>] [<c0105550>]
Code: 0f b7 45 10 b0 00 66 0f b6 55 10 01 d0 25 ff ff 00 00 89 44

Trace; c0123f4b <__vmalloc+fb/1c0>
Trace; c012cfdb <__getblk+17/38>
Trace; c012d19c <__bread+14/6c>
Trace; c018cb53 <journal_init+eb/68c>
Trace; c012c480 <__wait_on_buffer+84/90>
Trace; c017f486 <read_bitmaps+ce/160>
Trace; c017fd43 <reiserfs_fill_super+127/490>
Trace; c0195402 <sprintf+12/18>
Trace; c0130329 <get_sb_bdev+22d/29c>
Trace; c0180112 <reiserfs_get_sb+1a/20>
Trace; c017fc1c <reiserfs_fill_super+0/490>
Trace; c01304cf <do_kern_mount+47/c4>
Trace; c013ecb8 <do_add_mount+64/130>
Trace; c013ef6e <do_mount+14a/164>
Trace; c013edd4 <copy_mount_options+50/a0>
Trace; c013f2e0 <sys_mount+7c/bc>
Trace; c01051e9 <prepare_namespace+a9/e0>
Trace; c0105028 <init+c/124>
Trace; c0105550 <kernel_thread+28/38>
Code; c012cae6 <__get_hash_table+1a/9c>
00000000 <_EIP>:
Code; c012cae6 <__get_hash_table+1a/9c> <=====
0: 0f b7 45 10 movzwl 0x10(%ebp),%eax <=====
Code; c012caea <__get_hash_table+1e/9c>
4: b0 00 mov $0x0,%al
Code; c012caec <__get_hash_table+20/9c>
6: 66 0f b6 55 10 movzbw 0x10(%ebp),%dx
Code; c012caf1 <__get_hash_table+25/9c>
b: 01 d0 add %edx,%eax
Code; c012caf3 <__get_hash_table+27/9c>
d: 25 ff ff 00 00 and $0xffff,%eax
Code; c012caf8 <__get_hash_table+2c/9c>
12: 89 44 00 00 mov %eax,0x0(%eax,%eax,1)

<0>Kernel panic: Attempted to kill init!

2.5.6-pre3 oops looks almost identical. It is at
http://home.earthlink.net/~rwhron/kernel/2.5.6p3.ksymoops

CONFIG_X86=y
CONFIG_ISA=y
CONFIG_UID16=y
CONFIG_EXPERIMENTAL=y
CONFIG_NET=y
CONFIG_SYSVIPC=y
CONFIG_SYSCTL=y
CONFIG_MK6=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_X86_ALIGNMENT_16=y
CONFIG_X86_TSC=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_NOHIGHMEM=y
CONFIG_MTRR=y
CONFIG_PCI=y
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_NAMES=y
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_BLK_DEV_FD=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_IDEDISK_MULTI_MODE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_BLK_DEV_ADMA=y
CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_IDEDMA_AUTO=y
CONFIG_BLK_DEV_IDE_MODES=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
CONFIG_8139TOO=y
CONFIG_SOUND_GAMEPORT=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=64
CONFIG_REISERFS_FS=y
CONFIG_RAMFS=y
CONFIG_ISO9660_FS=y
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
CONFIG_EXT2_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFSD=y
CONFIG_NFSD_V3=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_MSDOS_PARTITION=y
CONFIG_VGA_CONSOLE=y
CONFIG_DEBUG_KERNEL=y
CONFIG_MAGIC_SYSRQ=y

Randy Hron

Hi,
I have a very similar Oops while mounting my ReiserFS root partition with 2.5.6 2.5.5-dj3 and 2.5.6-pre2 are working
If necessary I can handcopy the Oops

Bye

Hello!

This is a known merge problem, attached patch will cure it.

Bye,
Oleg

@@ -1960,8 +1960,7 @@
       		SB_ONDISK_JOURNAL_DEVICE( super ) ?
 		to_kdev_t(SB_ONDISK_JOURNAL_DEVICE( super )) : super -> s_dev;	
 	/* there is no "jdev" option and journal is on separate device */
-	if( ( !jdev_name || !jdev_name[ 0 ] ) && 
-	    SB_ONDISK_JOURNAL_DEVICE( super ) ) {
+	if( ( !jdev_name || !jdev_name[ 0 ] ) ) {
 		journal -> j_dev_bd = bdget( kdev_t_to_nr( jdev ) );
 		if( journal -> j_dev_bd )
 			result = blkdev_get( journal -> j_dev_bd, 

@@ -1976,9 +1975,6 @@
 		return result;
 	}
 
-	/* no "jdev" option and journal is on the host device */
-	if( !jdev_name || !jdev_name[ 0 ] )
-		return 0;
 	journal -> j_dev_file = filp_open( jdev_name, 0, 0 );
 	if( !IS_ERR( journal -> j_dev_file ) ) {
 		struct inode *jdev_inode;