Re: ATA, SATA Disk Problems

[Tejun Heo <htejun@gmail.com>]

Hello,

rgheck wrote:
> Hi, and sorry if this turns out to be a known issue. Actually, I'll be
> thrilled if this turns out to be a known issue. But I've searched on it
> forever, and although I've found some information, I've not found a
> definite fix. Possibly my fault, but this is driving me nuts.
> 
> System: Asus P5N32E MB, Intel Quad Core; on SATA: two HDs, SATA Pioneer
> DVD-RW; on PATA: Plextor CDRW, one HD. (Can send more info of course.)
> Kernel is 2.6.23.9 on Fedora 8.
> [root@rghquad lyxsvn]# lsmod | grep ata
> pata_amd               20293  2
> pata_pdc2027x          17477  0
> sata_nv                25157  6
> ata_generic            14405  0
> libata                114673  4 pata_amd,pata_pdc2027x,sata_nv,ata_generic
> scsi_mod              145657  5 sr_mod,sg,usb_storage,libata,sd_mod
> 
> The issue concerns locks ups and other errors that seem to be focused on
> the optical drives. I'm getting this kind of error:
> Jan 16 01:33:19 rghquad kernel: ata7.01: exception Emask 0x0 SAct 0x0
> SErr 0x0 action 0x2 frozen
> Jan 16 01:33:19 rghquad kernel: ata7.01: cmd
> a0/00:00:00:00:20/00:00:00:00:00/b0 tag 0 cdb 0x0 data 0
> Jan 16 01:33:19 rghquad kernel: ata7: soft resetting port
> Jan 16 01:33:19 rghquad kernel: ata7.01: configured for MWDMA2
> Jan 16 01:33:19 rghquad kernel: ata7: EH complete
> repeatedly, sometimes with the Plextor, sometimes with the Pioneer. But
> then things sometimes get worse:
> Jan 16 01:36:22 rghquad kernel: sr1: CDROM (ioctl) error, command:
> <6>ata7: EH complete
> Jan 16 01:36:22 rghquad kernel: __journal_remove_journal_head: freeing
> b_committed_data
> Jan 16 01:36:22 rghquad kernel: __journal_remove_journal_head: freeing
> b_frozen_data
> Jan 16 01:36:22 rghquad kernel: __journal_remove_journal_head: freeing
> b_committed_data
> and it seems as if the whole ATA system locks up. The main drive gets
> reset to read-only, and, well, things are not then good.
> 
> The fact that this sometimes happens on SATA and sometimes on PATA
> suggests its not a cable issue. (That particular case was the Plextor.)
> 
> Is it worth trying a larger PS? I believe I have 450W in this system.
> 
> Any help or suggestions more than welcome.

* Please post full kernel log including boot messages and error messages.

* If you have an extra power supply lying around, connecting some of
SATA devices to a separate PSU (don't do it for PATA) and seeing whether
the problem continues and on which devices is a great way to rule out
power problem.  You can power up a PSU without connecting it to a system
by...

  http://modtown.co.uk/mt/article2.php?id=psumod

-- 
tejun