FreeBSD bigback.housenet.jrv 8.0-CURRENT FreeBSD 8.0-CURRENT #0 r190917: Sat Apr 11 19:48:25 CDT 2009 james_at_bigback.housenet.jrv:/usr/obj/usr/src/sys/GENERIC amd64 I am getting many FLUSHCACHE timeout errors during "zfs recv" operations. kernel: ata3: reiniting channel .. kernel: ata3: channel HW reset time=0ms kernel: ata3: SATA connect time=0ms status=00000113 kernel: ata3: siiprb_issue_cmd time=504ms status=00050000 kernel: ata3: SIGNATURE=00000101 kernel: ata3: siiprb_reset devices=00000001 kernel: ata3: reinit done .. kernel: ad6: TIMEOUT - FLUSHCACHE48 retrying (1 retry left) The "disk" is a SATA hardware RAID with 256 MB of write-back cache. Looking at the ATA code is appears that the timeout for a FLUSHCACHE operation is five seconds (unless the disk is known to be spun down). Five seconds seems much too short in any case - I think the ATA spec allows the device to take 30 seconds. Has anyone seen this or looked into ATA timeouts?Received on Tue Apr 14 2009 - 15:59:02 UTC
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