Hello,

Paul Rolland wrote:
> Hello,
> 
> Applied this on top of 2.6.21-rc1 and your previous patch (see my previous
> mail). 
> Still booting, no more the weird error I've reported minutes ago.
> 
> pata_jmicron still unable to detect my DVD-RW :
> scsi8 : pata_jmicron
> ata9.00: ATAPI, max UDMA/66
> ata9.00: qc timeout (cmd 0xef)
> ata9.00: failed to set xfermode (err_mask=0x4)
> ata9.00: limiting speed to UDMA/44
> ata9: failed to recover some devices, retrying in 5 secs
> ata9.00: qc timeout (cmd 0xef)
> ata9.00: failed to set xfermode (err_mask=0x4)
> ata9.00: limiting speed to PIO0
> ata9: failed to recover some devices, retrying in 5 secs
> ata9.00: qc timeout (cmd 0xef)
> ata9.00: failed to set xfermode (err_mask=0x4)
> ata9.00: disabled
> scsi9 : pata_jmicron
> ATA: abnormal status 0x7F on port 0x0000000000019807

1. Has it ever worked with the previous kernels?

2. If you connect a harddisk to pata_jmicron, does it work?

3. Does applying the attached patch fix your problem?

-- 
tejun