Re: 2.4.18-rc4-aa1 XFS oopses caused by cpio

[svetljo <galia@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Stephen Lord wrote:

> Svetoslav Slavtchev wrote:
>
> > that's what i got
> >
> > Unable to handle kernel NULL pointer dereference at virtual address
> > 00000008
> > 801dba4e
> > *pde = 00000000
> > Oops: 0000
> > CPU:    0
> > EIP:    0010:[<801dba4e>]    Not tainted
> > Using defaults from ksymoops -t elf32-i386 -a i386
> > EFLAGS: 00010046
> > eax: 00000120   ebx: 00000000   ecx: 00000282   edx: 00000000
> > esi: 8b745a00   edi: 00000008   ebp: 9aa92000   esp: 9ca31904
> > ds: 0018   es: 0018   ss: 0018
> > Process cpio (pid: 20435, stackpage=9ca31000)
> > Stack: 00000282 00000004 8d5f4200 88dc0248 8d65b8c0 801db30d 88dc0248
> > 00000008
> >       00000004 00000001 8d65b980 8d65b8c0 00000004 88dc0248 801db081
> > 88dc0248
> >       8d65b980 8d65b8c0 00000004 8d65ba40 00000000 00000004 00000004
> > 8b745b20
> > Call Trace: [<801db30d>] [<801db081>] [<801db674>] [<8022db0d>]
> > [<80209989>]
> >   [<8023bc4d>] [<8022dd94>] [<801db3a2>] [<8022e747>] [<80222538>]
> > [<8020a412>]
> >   [<8021d4b9>] [<80212496>] [<8020f959>] [<802236ac>] [<802299f5>]
> > [<80222f71>]
> >   [<80234f0e>] [<801d83bd>] [<80220981>] [<8020e103>] [<8022341a>]
> > [<8020e103>]
> >   [<80227c17>] [<80235098>] [<80235348>] [<80145966>] [<80145a52>]
> > [<8010722b>]
> > Code: 8b 4a 08 85 c9 74 1b 8d 74 26 00 8d bc 27 00 00 00 00 43 83
> >
> > > > EIP; 801dba4e <xfs_alloc_mark_busy+3e/d0>   <=====
> > Trace; 801db30c <xfs_alloc_put_freelist+cc/e0>
> > Trace; 801db080 <xfs_alloc_fix_freelist+430/480>
> > Trace; 801db674 <xfs_alloc_vextent+124/3c0>
> > Trace; 8022db0c <_pagebuf_get_object+3c/140>
> > Trace; 80209988 <xfs_ialloc_ag_alloc+1d8/810>
> > Trace; 8023bc4c <kmem_zone_zalloc+3c/e0>
> > Trace; 8022dd94 <_pagebuf_free_object+f4/120>
> > Trace; 801db3a2 <xfs_alloc_read_agf+82/230>
> > Trace; 8022e746 <pagebuf_rele+66/80>
> > Trace; 80222538 <xfs_trans_brelse+d8/e0>
> > Trace; 8020a412 <xfs_dialloc+182/900>
> > Trace; 8021d4b8 <xfs_mod_incore_sb_batch+48/a0>
> > Trace; 80212496 <xfs_inode_item_unlock+76/80>
> > Trace; 8020f958 <xfs_ialloc+58/3e0>
> > Trace; 802236ac <xfs_dir_ialloc+8c/290>
> > Trace; 802299f4 <xfs_mkdir+374/640>
> > Trace; 80222f70 <xfs_trans_free_items+30/90>
> > Trace; 80234f0e <linvfs_common_cr+1ae/2b0>
> > Trace; 801d83bc <xfs_acl_iaccess+2c/90>
> > Trace; 80220980 <xfs_trans_reserve+90/160>
> > Trace; 8020e102 <xfs_iunlock+32/60>
> > Trace; 8022341a <xfs_dir_lookup_int+ba/2c0>
> > Trace; 8020e102 <xfs_iunlock+32/60>
> > Trace; 80227c16 <xfs_lookup+a6/110>
> > Trace; 80235098 <linvfs_lookup+68/c0>
> > Trace; 80235348 <linvfs_mkdir+18/20>
> > Trace; 80145966 <vfs_mkdir+106/160>
> > Trace; 80145a52 <sys_mkdir+92/e0>
> > Trace; 8010722a <system_call+32/38>
> > Code;  801dba4e <xfs_alloc_mark_busy+3e/d0>
> > 00000000 <_EIP>:
> > Code;  801dba4e <xfs_alloc_mark_busy+3e/d0>   <=====
> >   0:   8b 4a 08                  mov    0x8(%edx),%ecx   <=====
> > Code;  801dba50 <xfs_alloc_mark_busy+40/d0>
> >   3:   85 c9                     test   %ecx,%ecx
> > Code;  801dba52 <xfs_alloc_mark_busy+42/d0>
> >   5:   74 1b                     je     22 <_EIP+0x22> 801dba70
> > <xfs_alloc_mark_busy+60/d0>
> > Code;  801dba54 <xfs_alloc_mark_busy+44/d0>
> >   7:   8d 74 26 00               lea    0x0(%esi,1),%esi
> > Code;  801dba58 <xfs_alloc_mark_busy+48/d0>
> >   b:   8d bc 27 00 00 00 00      lea    0x0(%edi,1),%edi
> > Code;  801dba60 <xfs_alloc_mark_busy+50/d0>
> >  12:   43                        inc    %ebx
> > Code;  801dba60 <xfs_alloc_mark_busy+50/d0>
> >  13:   83 00 00                  addl   $0x0,(%eax)
>
> This is this chunk of code:
>
>        for (bsy = mp->m_perag[agno].pagb_list, n = 0;
> c01970e2:       31 db                   xor    %ebx,%ebx
> c01970e4:       8b b5 e4 01 00 00       mov    0x1e4(%ebp),%esi
> c01970ea:       8b 54 06 20             mov    0x20(%esi,%eax,1),%edx
>             n < XFS_PAGB_NUM_SLOTS;
>             bsy++, n++) {
>                if (bsy->busy_tp == NULL) {
> c01970ee:       8b 4a 08                mov    0x8(%edx),%ecx
>
> It looks like bsy is NULL, which means either a corruption problem 
> (agno too large),
> or a memory allocation problem during mount - did you get any error 
> messages when
> you mounted the filesystem? Had you performed much I/O before this 
> happened, or
> was the cpio the first thing you did. If this structure is missing 
> then chances are you
> would not get far before dying. We have already referenced other 
> fields in the m_perag[agno]
> structure,  so I lean towards pagb_list itself being NULL.
>
> Can you send me the output of mkfs if you still have it, or failing 
> that, the output
> of xfs_growfs -n /xxx where /xxx is the mounted filesystem.
>
> This chunk of code is new, you may have found a hole in it - although 
> I have been running
> it for a couple of months here without problem. It could also be 
> something specific to
> the aa kernel, I have not looked at this merge of XFS.
>
> Steve 

i just created LV, formated it with xfs , extended it , mounted it, 
extended the fs , and started to transfer my old /opt to the LV with cpio
there were no complains from mount or xfs_growfs
and i have no the output from mkfs.xfs

[root@svetljo log]# xfs_growfs -n /opt
meta-data=/opt            isize=256    agcount=12, agsize=33024 blks
data     =                       bsize=4096   blocks=393216, imaxpct=25
           =                       sunit=4      swidth=12 blks, unwritten=0
           =                       imaxbits=24
naming   =version 2     bsize=4096
log      =internal           bsize=4096   blocks=1200
realtime =none            extsz=49152  blocks=0, rtextents=0

That is from /var/log/messages

Mar  8 10:34:44 svetljo kernel: XFS mounting filesystem lvm(58,5)
Mar  8 10:35:00 svetljo CROND[20367]: (root) CMD (   
/usr/sbin/monitoring.pl)
Mar  8 10:36:11 svetljo kernel: Unable to handle kernel NULL pointer 
dereference at virtual address 00000008
Mar  8 10:36:11 svetljo kernel:  printing eip:
Mar  8 10:36:11 svetljo kernel: 801dba4e
Mar  8 10:36:11 svetljo kernel: *pde = 00000000
Mar  8 10:36:11 svetljo kernel: Oops: 0000
Mar  8 10:36:11 svetljo kernel: CPU:    0
Mar  8 10:36:11 svetljo kernel: EIP:    
0010:[xfs_alloc_mark_busy+62/208]    Not tainted
Mar  8 10:36:11 svetljo kernel: EIP:    0010:[<801dba4e>]    Not tainted
Mar  8 10:36:11 svetljo kernel: EFLAGS: 00010046
Mar  8 10:36:11 svetljo kernel: eax: 00000120   ebx: 00000000   ecx: 
00000282   edx: 00000000
Mar  8 10:36:11 svetljo kernel: esi: 8b745a00   edi: 00000008   ebp: 
9aa92000   esp: 9ca31904
Mar  8 10:36:11 svetljo kernel: ds: 0018   es: 0018   ss: 0018
Mar  8 10:36:11 svetljo kernel: Process cpio (pid: 20435, 
stackpage=9ca31000)
Mar  8 10:36:11 svetljo kernel: Stack: 00000282 00000004 8d5f4200 
88dc0248 8d65b8c0 801db30d 88dc0248 00000008
Mar  8 10:36:11 svetljo kernel:        00000004 00000001 8d65b980 
8d65b8c0 00000004 88dc0248 801db081 88dc0248
Mar  8 10:36:11 svetljo kernel:        8d65b980 8d65b8c0 00000004 
8d65ba40 00000000 00000004 00000004 8b745b20
Mar  8 10:36:11 svetljo kernel: Call Trace: 
[xfs_alloc_put_freelist+205/224] [xfs_alloc_fix_freelist+1073/1152] 
[xfs_alloc_vextent+292/960] [_pagebuf_get_object+61/320] 
[xfs_ialloc_ag_alloc+473/2064]
Mar  8 10:36:11 svetljo kernel: Call Trace: [<801db30d>] [<801db081>] 
[<801db674>] [<8022db0d>] [<80209989>]
Mar  8 10:36:11 svetljo kernel:    [kmem_zone_zalloc+61/224] 
[_pagebuf_free_object+244/288] [xfs_alloc_read_agf+130/560] 
[pagebuf_rele+103/128] [xfs_trans_brelse+216/224] [xfs_dialloc+386/2304]
Mar  8 10:36:11 svetljo kernel:    [<8023bc4d>] [<8022dd94>] 
[<801db3a2>] [<8022e747>] [<80222538>] [<8020a412>]
Mar  8 10:36:11 svetljo kernel:    [xfs_mod_incore_sb_batch+73/160] 
[xfs_inode_item_unlock+118/128] [xfs_ialloc+89/992] 
[xfs_dir_ialloc+140/656] [xfs_mkdir+885/1600] [xfs_trans_free_items+49/144]
Mar  8 10:36:11 svetljo kernel:    [<8021d4b9>] [<80212496>] 
[<8020f959>] [<802236ac>] [<802299f5>] [<80222f71>]
Mar  8 10:36:11 svetljo kernel:    [linvfs_common_cr+430/688] 
[xfs_acl_iaccess+45/144] [xfs_trans_reserve+145/352] [xfs_iunlock+51/96] 
[xfs_dir_lookup_int+186/704] [xfs_iunlock+51/96]
Mar  8 10:36:11 svetljo kernel:    [<80234f0e>] [<801d83bd>] 
[<80220981>] [<8020e103>] [<8022341a>] [<8020e103>]
Mar  8 10:36:11 svetljo kernel:    [xfs_lookup+167/272] 
[linvfs_lookup+104/192] [linvfs_mkdir+24/32] [vfs_mkdir+262/352] 
[sys_mkdir+146/224] [system_call+51/56]
Mar  8 10:36:11 svetljo kernel:    [<80227c17>] [<80235098>] 
[<80235348>] [<80145966>] [<80145a52>] [<8010722b>]
Mar  8 10:36:11 svetljo kernel:
Mar  8 10:36:11 svetljo kernel: Code: 8b 4a 08 85 c9 74 1b 8d 74 26 00 
8d bc 27 00 00 00 00 43 83