Re: 2.4.20pre5aa2

[Samuel Flory <sflory@xxxxxxxxxxxx>]

 Your patch seem to solve only some  of the xfs issues for me.  Before 
the patch my system hung when booting.  This only occured I  had xfs 
compiled into the kernel.   After patching  things seemed fine, but 
durning "dbench 32" the system locked.  Upon rebooting and attempting to 
mount the filesystem I got this:
XFS mounting filesystem md(9,2)
Starting XFS recovery on filesystem: md(9,2) (dev: 9/2)
kernel BUG at page_buf.c:578!
<and so on>

PS- The results of ksymoops are attached.

Andrea Arcangeli wrote:

> was a collision between new xfs and new scheduler, you can use this fix
> in the meantime:
>
> --- 2.4.20pre5aa3/fs/xfs/pagebuf/page_buf.c.~1~ Wed Sep 11 05:17:46 2002
> +++ 2.4.20pre5aa3/fs/xfs/pagebuf/page_buf.c     Wed Sep 11 06:00:35 2002
> @@ -2055,9 +2055,9 @@ pagebuf_iodone_daemon(
>         spin_unlock_irq(&current->sigmask_lock);
>
>         /* Migrate to the right CPU */
> -       current->cpus_allowed = 1UL << cpu;
> -       while (smp_processor_id() != cpu)
> -               schedule();
> +       set_cpus_allowed(current, 1UL << cpu);
> +       if (cpu() != cpu)
> +               BUG();
>
>         sprintf(current->comm, "pagebuf_io_CPU%d", bind_cpu);
>         INIT_LIST_HEAD(&pagebuf_iodone_tq[cpu]);
>
> also remeber to apply the O_DIRECT fixes for reiserfs and ext3 (that
> were left over after merging the new nfs stuff). all will be fixed in
> next -aa of course.
>
> --- 2.4.19pre3aa1/fs/reiserfs/inode.c.~1~       Tue Mar 12 00:07:18 2002
> +++ 2.4.19pre3aa1/fs/reiserfs/inode.c   Tue Mar 12 01:24:21 2002
> @@ -2161,10 +2161,11 @@
>         }
> }
>
> -static int reiserfs_direct_io(int rw, struct inode *inode, 
> +static int reiserfs_direct_io(int rw, struct file * filp,
>                               struct kiobuf *iobuf, unsigned long blocknr,
> 			      int blocksize) 
> {
> +    struct inode * inode = filp->f_dentry->d_inode->i_mapping->host;
>     return generic_direct_IO(rw, inode, iobuf, blocknr, blocksize,
>                              reiserfs_get_block_direct_io) ;
> }
> --- 2.4.20pre5aa2/fs/ext3/inode.c.~1~	Mon Sep  9 02:38:08 2002
> +++ 2.4.20pre5aa2/fs/ext3/inode.c	Tue Sep 10 05:22:18 2002
> @@ -1385,9 +1385,10 @@ static int ext3_releasepage(struct page 
> }
>
> static int
> -ext3_direct_IO(int rw, struct inode *inode, struct kiobuf *iobuf,
> +ext3_direct_IO(int rw, struct file * filp, struct kiobuf *iobuf,
>                 unsigned long blocknr, int blocksize)
> {
> +       struct inode * inode = filp->f_dentry->d_inode->i_mapping->host;
>         struct ext3_inode_info *ei = EXT3_I(inode);
>         handle_t *handle = NULL;
>         int ret;
>
> Andrea
> -
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>
>  

ksymoops 2.4.5 on i686 2.4.20-pre5aa2-fixed-xfs.  Options used
     -V (specified)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.4.20-pre5aa2-fixed-xfs/ (default)
     -m /boot/System.map-2.4.20-pre5aa2-fixed-xfs (default)

kernel BUG at page_buf.c:578!
invalid operand: 0000 2.4.20-pre5aa2-fixed-xfs #4 SMP Thu Sep 12 11:51:40 PDT 
2002
CPU:    1
EIP:    0010:[<c0208592>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000000   ebx: 00000001   ecx: 00000001   edx: 00000000
esi: c5e15a04   edi: c5e15980   ebp: 00000002   esp: c5c19a58
ds: 0018   es: 0018   ss: 0018
Process mount (pid: 805, stackpage=c5c19000)
Stack: c5c18000 00001000 00000000 00000001 00000000 00000005 000001f0 00000002 
       c5e15980 c5e15980 00002205 c5e20540 c02089c8 c5e15980 c5c117b4 00002205 
       13005f90 00000000 c5912d40 13005f90 00000000 c01f4d2d c5912d40 13005f90 
Call Trace:    [<c02089c8>] [<c01f4d2d>] [<c01f45e1>] [<c01f463a>] [<c01f58b2>]
  [<c01f59f6>] [<c01f5b5a>] [<c01f6744>] [<c01f6c74>] [<c01f6cc4>] [<c01f6e45>]
  [<c01efde7>] [<c01f861c>] [<c01f776b>] [<c01f77b0>] [<c01ff894>] [<c01ff97b>]
  [<c0212ce6>] [<c0148c81>] [<c0148e9c>] [<c014dfb8>] [<c015c145>] [<c015c43b>]
  [<c015c29c>] [<c015c904>] [<c0108d9b>]
Code: 0f 0b 42 02 95 ab 35 c0 0f b7 47 7c 81 4f 08 04 00 00 01 8d 


>>EIP; c0208592 <_pagebuf_lookup_pages+2a2/2f0>   <=====

>>esi; c5e15a04 <END_OF_CODE+7abc1/????>
>>edi; c5e15980 <END_OF_CODE+7ab3d/????>
>>esp; c5c19a58 <[ip_tables].data.end+116159/294761>

Trace; c02089c8 <pagebuf_get+98/120>
Trace; c01f4d2d <xlog_recover_do_buffer_trans+fd/230>
Trace; c01f45e1 <xlog_recover_insert_item_frontq+11/20>
Trace; c01f463a <xlog_recover_reorder_trans+4a/90>
Trace; c01f58b2 <xlog_recover_do_trans+52/100>
Trace; c01f59f6 <xlog_recover_commit_trans+26/40>
Trace; c01f5b5a <xlog_recover_process_data+12a/1d0>
Trace; c01f6744 <xlog_do_recovery_pass+354/800>
Trace; c01f6c74 <xlog_do_log_recovery+84/b0>
Trace; c01f6cc4 <xlog_do_recover+24/110>
Trace; c01f6e45 <xlog_recover+95/c0>
Trace; c01efde7 <xfs_log_mount+77/b0>
Trace; c01f861c <xfs_mountfs+a7c/fe0>
Trace; c01f776b <xfs_readsb+3b/c0>
Trace; c01f77b0 <xfs_readsb+80/c0>
Trace; c01ff894 <xfs_cmountfs+574/610>
Trace; c01ff97b <xfs_mount+4b/60>
Trace; c0212ce6 <linvfs_read_super+f6/240>
Trace; c0148c81 <get_sb_bdev+1b1/230>
Trace; c0148e9c <do_kern_mount+5c/120>
Trace; c014dfb8 <link_path_walk+918/a20>
Trace; c015c145 <do_add_mount+75/180>
Trace; c015c43b <do_mount+14b/170>
Trace; c015c29c <copy_mount_options+4c/a0>
Trace; c015c904 <sys_mount+a4/100>
Trace; c0108d9b <system_call+33/38>

Code;  c0208592 <_pagebuf_lookup_pages+2a2/2f0>
00000000 <_EIP>:
Code;  c0208592 <_pagebuf_lookup_pages+2a2/2f0>   <=====
   0:   0f 0b                     ud2a      <=====
Code;  c0208594 <_pagebuf_lookup_pages+2a4/2f0>
   2:   42                        inc    %edx
Code;  c0208595 <_pagebuf_lookup_pages+2a5/2f0>
   3:   02 95 ab 35 c0 0f         add    0xfc035ab(%ebp),%dl
Code;  c020859b <_pagebuf_lookup_pages+2ab/2f0>
   9:   b7 47                     mov    $0x47,%bh
Code;  c020859d <_pagebuf_lookup_pages+2ad/2f0>
   b:   7c 81                     jl     ffffff8e <_EIP+0xffffff8e>
Code;  c020859f <_pagebuf_lookup_pages+2af/2f0>
   d:   4f                        dec    %edi
Code;  c02085a0 <_pagebuf_lookup_pages+2b0/2f0>
   e:   08 04 00                  or     %al,(%eax,%eax,1)
Code;  c02085a3 <_pagebuf_lookup_pages+2b3/2f0>
  11:   00 01                     add    %al,(%ecx)
Code;  c02085a5 <_pagebuf_lookup_pages+2b5/2f0>
  13:   8d 00                     lea    (%eax),%eax