pe2970 slow boot with cdrom and 2.6.18 kernel

John McMonagle johnm at advocap.org
Fri Apr 30 10:01:12 CDT 2010


I'm running xen  with the xen 2.6.18 kernel on a pe2970.

The problem is it takes almost 5 minutes to deal with the cdrom at boot.
It one by one tries different dma methods.
Pretty sure the times are bogus as the root partition was not mounted yet.
The cd is ata2.

At the moment I have disabled the cdrom in bios.

I thinking of trying libata.dma=1  for the kernel in grub.
Any suggestions?

John



Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: ATAPI, max UDMA/100
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/100
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/100
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/100
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/100
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: limiting speed to UDMA/66
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/66
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: limiting speed to UDMA/44
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/44
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: limiting speed to UDMA/33
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/33
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: limiting speed to UDMA/25
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/25
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: limiting speed to UDMA/16
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz                                                                 
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for UDMA/16
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: limiting speed to PIO4
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 
0x40000000 action 0x2 froz                                                                 
en
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: (BMDMA stat 0x1)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: tag 0 cmd 0xa0 Emask 0x4 stat 0x40 
err 0x0 (timeout)
Apr 24 15:42:43 fdlxen5 kernel: ata2: soft resetting port
Apr 24 15:42:43 fdlxen5 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
Apr 24 15:42:43 fdlxen5 kernel: ata2.00: configured for PIO4
Apr 24 15:42:43 fdlxen5 kernel: ata2: EH complete



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