Re: XFS or Kernel Problem / Bug

[Stefan Priebe - FH <studium@profihost.com>]

Hi!

I'm  not shure but perhaps it isn't an XFS Bug.

Here is what i find out:

We've about 300 servers at the momentan and 5 of them are "old" Intel 
Pentium 4 Machines with a DFI PM-12 Mainboard with VIA chipset. It only 
happens on THESE Machines. Other P4 Machines with a Tyan Mainboard or a 
Gigabyte Mainboard are not affected. All 300 machines runs the same 
Debian 3.0 with self build kernel. Some of these 5 use a 3ware 
controller and some of them the mainboardcontroller. All systems are 
using IDE.

But i cannot say what happens to these machines at the time of failure. 
Sometimes these servers crashed directly after a few minutes. Sometimes 
they run about 2-3 days... i've now downgraded all servers to 2.6.16.37. 
Cause they are production machines... but i have one machine where we 
can test - if you need something.

Here is the output running 2.6.16.37 at the moment:
xfs_growfs -n /

meta-data=/dev/root              isize=256    agcount=16, agsize=603855 blks
          =                       sectsz=512   attr=0
data     =                       bsize=4096   blocks=9661680, imaxpct=25
          =                       sunit=0      swidth=0 blks, unwritten=1
naming   =version 2              bsize=4096
log      =internal               bsize=4096   blocks=4717, version=1
          =                       sectsz=512   sunit=0 blks
realtime =none                   extsz=65536  blocks=0, rtextents=0

Stefan

David Chinner schrieb:
> On Sun, Jan 21, 2007 at 01:30:15PM +0100, Stefan Priebe - FH wrote:
>> Hello!
>>
>> I've 3 Servers which works wonderful with 2.6.16.X (also testet the
>> latest 2.6.16.37)
>>
>> but with 2.6.18.6 i get these errors:
> 
> [ EIP is at xfs_bmap_add_extent_hole_delay+0x58d/0x59b ]
> [ EIP is at generic_file_buffered_write+0x390/0x6cf ]
> 
> Do you have a reproducable test case for these? if not,
> do you have any idea what is going on in the system at the time
> of the failure?
> 
> Can you describe the storage subsystem you are using and post the
> output of xfs_growfs -n <mntpt> on the filesystem that is causing
> problems?
> 
> Cheers,
> 
> Dave.