Loss of SCSI tape reliability with 2.4 kernel

[Kenneth E. Lussier]

Have you considered not running a RH distribution kernel? I am running
2.4.18 that I downloaded from kernel.org, and my tape changer (an HP
dat40x6) and Amanda work great. 

C-Ya,
Kenny
   
On Thu, 2002-08-08 at 12:08, Bill Freeman wrote:
> 	Does anyone know of issues with SCSI and/or st with 2.4
> kernels, and, hopefully, what to do about it?
> 
> 	I've got a box set up to back up the machines on our network
> to DAT using Amanda.  It's a RH6.2 system (from an GNHLUG labeled CD).
> 
> 	But this box is also my workstation, and I have RH7.1
> installed in other partitions for normal daily life.  Rather than boot
> into 6.2 to do backups, I have configured Amanda on the 7.1
> partitions, and after fixing security problems (on 6.2 the server
> identifies to the client on the same box as localhost... where in the
> 7.1 world it uses the configured machine and domain, so .amandahosts
> had to be different), Amanda shows signs of life.
> 
> 	In fact, if I mess up and put the wrong tape in the drive,
> Amanda happily stuffs backups on my tape buffer partition (so called
> degraded mode).  But when it runs the tape drive, whether as part of
> amdump of as part of a subsequent amflush (copies the degraded mode
> disk copies of the dump to the tape), in a reasonably short time, the
> machine hangs totally (reset required to recover).
> 
> 	I was thinking that maybe my SCSI controller was failing and
> wedging the bus during DMA, or some such, but things work fine if I
> boot back into the 6.2 system (2.2 kernel), including doing the amflush
> for the degraded mode dumps made under 7.1 (2.4 kernel).
> 
> 	The problem occurs with both the 2.4.9-34 and 2.4.9-12 i686
> kernels from RH (the two that I've tried).  The -34 is the latest
> update.
> 
> 	Any thoughts?
> 
> 							Bill
> 
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