Messages in this thread | | | Date | Fri, 25 Jul 2008 00:33:21 -0600 | From | Robert Hancock <> | Subject | Re: 2.6.24 + ICH8M + high SATA load == death |
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Jeffrey Baker wrote: > On 2.6.24 with a SATA controller: Intel Corporation 82801HBM/HEM > (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03) and a Vendor: ATA > Model: SAMSUNG MCBQE32G Rev: PS10 flash disk, I get this error when > doing 32 parallel runs of pgbench: > > ata1.00: exception Emask 0x10 SAct 0x0 SErr 0x50000 action 0xa frozen > ata1.00: irq_stat 0x00400001, PHY RDY changed > ata1: SError: { PHYRdyChg CommWake } > ata1.00: cmd c8/00:10:67:38:97/00:00:00:00:00/e1 tag 0 dma 8192 in > res 50/00:00:76:38:97/00:00:00:00:00/e1 Emask 0x10 (ATA bus error) > ata1.00: status: { DRDY } > > Afterwards the machine was in some kind of bad state where it would do > only about 1MB/s to the disk, and I had to power it off. > > Basically I have no idea what any of that gibberish means. Note that > this device is about 80 times faster than the spinning disk it > replaced, so it may be stressing parts of the software that are not > normally stressed. Note also that it could just be crap hardware. I > don't really know. However, I do note that someone recently posted a > very similar error using Western Digital disks and the same SATA > controller. I don't think the problem is cables, since this is a > laptop. Any advice welcome.
PHYRdyChg in SError basically means that the controller detected that the drive disconnected or lost communication with it. Almost certainly a hardware problem of some sort. Power issue, perhaps?
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