Gaston, Jason D wrote:
Hello,
I am seeing the follow messages in dmesg, when running in AHCI mode with
a SATA ATAPI device connected, on an Intel Tolapai SoC. If I just use
HD's, I don't see this problem. If I swith it to SATA IDE mode,
everything seems to work fine. I also noticed that while in AHCI mode,
that booting hangs out on Starting udev for several minutes. I don't
see this in IDE mode. This was using the 2.6.25 kernel.
Any ideas what may be going on or how to fix it? Please let me know
what I can try and what other information will help.
ata1.00: limiting speed to PIO4
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
cdb 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata1.00: configured for PIO4
ata1: EH complete
ata1.00: limiting speed to PIO3
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
cdb 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: soft resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata1.00: configured for PIO3
ata1: EH complete
ata1.00: limiting speed to PIO0
ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata1.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
cdb 1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
Hmm.. these look like media presence polling commands from haldaemon. I
have no idea why it's failing on ahci tho. All polling failures I've
seen till now was device dependent, not controller. You can disable
media presence polling using hal-disable-polling /dev/sr0. If you
disabling polling, does the device work correctly? ie. can you read and
record using it?
--
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
