ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen

[Nestor Waldyd Alvarez Villa]

Hello...

I am having a problem with my TSSTcorp CD-RW/DVD-ROM TSL462D. The error  
below is causing a parallel application to fail. Here is the relevant  
output of my system log (dmesg command)


ata5.00: ATAPI: TSSTcorpCD-RW/DVD-ROM TSL462D, DE01, max UDMA/33

...


ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata5.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0
          res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x3 (HSM violation)
ata5: soft resetting port
ata5.00: configured for UDMA/33
ata5: EH pending after completion, repeating EH (cnt=4)
ata5: EH complete
ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata5.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0
          res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x3 (HSM violation)
ata5: soft resetting port
ata5.00: configured for UDMA/33
ata5: EH pending after completion, repeating EH (cnt=4)
ata5: EH complete

I have noticed that when i run a parallel MPI application with more than  
one thread per node, the problem is triggered... I also have noticed that  
the prompt above comes from the HAL daemon because when i disable the hal  
daemon, this is not prompted anymore but the problem persists. Using the  
acpi=off kernel option, the system tends to be more stable but the problem  
does not solve...

Here is my system info (uname -a):

[waldyd at nodo5 ~]$ uname -a
Linux nodo5.gialea 2.6.23.14 #1 SMP Mon Feb 4 16:12:24 COT 2008 x86_64  
x86_64 x86_64 GNU/Linux

Any ideas about why is this happening? How can i solve this?

Best regards,

Nestor Waldyd


-- 

Nestor Waldyd Alvarez Villa | Ingeniero Investigador | Grupo de  
Investigaciones Ambientales (GIA)
Universidad Pontificia Bolivariana | Circular 1 No. 70-01, Bloque 8. Piso  
2. | Medellín, COLOMBIA
Tel: (57) (4) 4159015 Ext. 9841 | (57) (4) 415 90 84 | Fax: (57) (4)  
4159082
mailto:nestor.alvarez at upb.edu.co | www.upb.edu.co |  
http://convena.upb.edu.co/~gialea/