Ric Wheeler wrote:
Jeff Garzik wrote:
TESTING:
* Although most drivers by count received few operational changes, the
common probe path was updated, so all drivers need fresh "yes, it sees
all my disks" regression testing.
* ahci and sata_sil24 were touched a lot, and so need additional
testing.
* sata_sil and ata_piix also need healthy re-testing of all basic
functionality.
I have been running a moderate write workload on this (built using
linux-2.6.17-rc4 with your patch applied on top). Last night, I ran on
a set of clean AHCI based boxes (no bad drives) and got a serious of
occasional spurious interrupts logged:
May 15 21:24:38 centera kernel: ReiserFS: sdd14: Using r5 hash to sort
names
May 15 21:52:44 centera kernel: ata1: spurious interrupt (irq_stat 0x8
active_tag -84148995 sactive 0x800)
May 15 22:00:02 centera run-crons[26837]: logrotate returned 1
May 15 22:16:00 centera kernel: ata1: spurious interrupt (irq_stat 0x8
active_tag -84148995 sactive 0x4)
May 15 22:29:14 centera kernel: ata1: spurious interrupt (irq_stat 0x8
active_tag -84148995 sactive 0x7e007fff)
May 15 22:35:04 centera kernel: ata3: spurious interrupt (irq_stat 0x8
active_tag -84148995 sactive 0x4fffffff)
Full messages file and lspci below, but note that this hardware has been
running ahci with this config in production for over a year now.
Definitely new behavior. In each case you have irq_stat == 0x8, which
indicates a Set Device Bits FIS has been received.
Jeff
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