Re: mpt2sas logged messages

[Greg KH <greg@kroah.com>]

On Tue, Aug 18, 2009 at 11:53:32AM -0400, Ric Wheeler wrote:
> On 08/18/2009 10:57 AM, Greg KH wrote:
> > On Tue, Aug 18, 2009 at 09:59:56AM -0400, Ric Wheeler wrote:
> >    
> >> On 08/18/2009 09:25 AM, Greg KH wrote:
> >>      
> >>> On Tue, Aug 18, 2009 at 09:18:30AM -0400, Ric Wheeler wrote:
> >>>        
> >>>> We have a new toy to test very large&   slow storage with built up from 5
> >>>> SAS expansion shelves (Promise Vtrak J-Class) with 60 S-ATA drives and
> >>>> 16 SAS drives (the S-ATA drives each have a Promise Vtrak S-ATA MUX
> >>>> adapter daughter card in the disk sled).
> >>>>
> >>>> The basic idea is to build a cheap&   slow test bed for file&   storage
> >>>> system scalability. Collectively, we have about 120TB (raw) of capacity
> >>>> to play with in one server.
> >>>>
> >>>> As we work through various issues, a couple of oddities popped out.
> >>>>
> >>>> The first is that udev grumbles during boot about "file name too long"
> >>>> like the following:
> >>>>
> >>>> Aug 17 06:49:58 megadeth udevd-event[20447]: unable to create db file
> >>>> '/dev/.udev/db/\x2fdevices\x2fpci0000:00\x2f0000:00:04.0\x2f0000:17:00.0\x2f0000:18:0a.0\x2f0000:1f:00.0\x2fhost11\x2fport-11:0\x2fexpander-11:0\x2fport-11:0:0\x2fexpander-11:1\x2fport-11:1:0\x2fexpander-11:2\x2fport-11:2:17\x2fexpander-11:3\x2fport-11:3:1\x2fend_device-11:3:1\x2fbsg\x2fend_device-11:3:1':
> >>>> File name too long

Ok, it looks like the way that udev handles it's internal "database"
can't handle paths that are larger than a single filename size.

Kay, I think this is all yours :)

thanks,

greg k-h