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Subjectspurious completions during NCQ?
From
Hello,

I was working on a I/O heavy workload (parsing 100K spam messages to
extract certain structures) when I got this in the kernel log:

[ 2320.132893] ata1.00: exception Emask 0x2 SAct 0x701fffff SErr 0x0 action 0x2 frozen
[ 2320.132899] ata1.00: (spurious completions during NCQ issue=0x0 SAct=0x701fffff FIS=005040a1:08000000)
[ 2320.132905] ata1.00: cmd 61/10:00:59:fc:d0/00:00:07:00:00/40 tag 0 cdb 0x0 data 8192 out
[ 2320.132906] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132911] ata1.00: cmd 61/10:08:69:fc:d0/00:00:07:00:00/40 tag 1 cdb 0x0 data 8192 out
[ 2320.132913] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132918] ata1.00: cmd 61/08:10:19:4c:d1/00:00:07:00:00/40 tag 2 cdb 0x0 data 4096 out
[ 2320.132919] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132924] ata1.00: cmd 61/01:18:fb:27:0f/00:00:08:00:00/40 tag 3 cdb 0x0 data 512 out
[ 2320.132925] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132930] ata1.00: cmd 61/08:20:11:28:0f/00:00:08:00:00/40 tag 4 cdb 0x0 data 4096 out
[ 2320.132932] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132937] ata1.00: cmd 61/08:28:91:92:17/00:00:08:00:00/40 tag 5 cdb 0x0 data 4096 out
[ 2320.132938] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132943] ata1.00: cmd 61/08:30:99:b3:17/00:00:08:00:00/40 tag 6 cdb 0x0 data 4096 out
[ 2320.132944] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132949] ata1.00: cmd 61/01:38:5b:56:4b/00:00:05:00:00/40 tag 7 cdb 0x0 data 512 out
[ 2320.132950] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132956] ata1.00: cmd 61/08:40:71:56:4b/00:00:05:00:00/40 tag 8 cdb 0x0 data 4096 out
[ 2320.132957] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132962] ata1.00: cmd 61/08:48:09:cf:5a/00:00:05:00:00/40 tag 9 cdb 0x0 data 4096 out
[ 2320.132963] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132968] ata1.00: cmd 61/01:50:3b:af:8b/00:00:05:00:00/40 tag 10 cdb 0x0 data 512 out
[ 2320.132969] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132974] ata1.00: cmd 61/08:58:51:af:8b/00:00:05:00:00/40 tag 11 cdb 0x0 data 4096 out
[ 2320.132976] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132981] ata1.00: cmd 61/08:60:d9:f1:8d/00:00:05:00:00/40 tag 12 cdb 0x0 data 4096 out
[ 2320.132982] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132987] ata1.00: cmd 61/08:68:49:bd:8e/00:00:05:00:00/40 tag 13 cdb 0x0 data 4096 out
[ 2320.132988] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.132993] ata1.00: cmd 61/08:70:d9:63:d1/00:00:05:00:00/40 tag 14 cdb 0x0 data 4096 out
[ 2320.132995] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133000] ata1.00: cmd 61/08:78:91:39:0f/00:00:06:00:00/40 tag 15 cdb 0x0 data 4096 out
[ 2320.133001] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133006] ata1.00: cmd 61/08:80:49:30:97/00:00:06:00:00/40 tag 16 cdb 0x0 data 4096 out
[ 2320.133007] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133013] ata1.00: cmd 61/08:88:41:c0:d0/00:00:06:00:00/40 tag 17 cdb 0x0 data 4096 out
[ 2320.133014] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133019] ata1.00: cmd 61/08:90:b9:8c:d1/00:00:06:00:00/40 tag 18 cdb 0x0 data 4096 out
[ 2320.133020] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133025] ata1.00: cmd 61/01:98:1b:cf:ce/00:00:07:00:00/40 tag 19 cdb 0x0 data 512 out
[ 2320.133027] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133032] ata1.00: cmd 61/08:a0:31:cf:ce/00:00:07:00:00/40 tag 20 cdb 0x0 data 4096 out
[ 2320.133033] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133038] ata1.00: cmd 61/10:e0:41:af:8b/00:00:05:00:00/40 tag 28 cdb 0x0 data 8192 out
[ 2320.133039] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133044] ata1.00: cmd 61/01:e8:ba:12:8d/00:00:06:00:00/40 tag 29 cdb 0x0 data 512 out
[ 2320.133046] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.133051] ata1.00: cmd 61/10:f0:c1:12:8d/00:00:06:00:00/40 tag 30 cdb 0x0 data 8192 out
[ 2320.133052] res 50/00:08:31:cf:ce/00:00:07:00:00/40 Emask 0x2 (HSM violation)
[ 2320.378387] ata1: soft resetting port
[ 2320.442169] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 2320.460012] ata1.00: ata_hpa_resize 1: sectors = 156301488, hpa_sectors = 156301488
[ 2320.461395] ata1.00: ata_hpa_resize 1: sectors = 156301488, hpa_sectors = 156301488
[ 2320.461402] ata1.00: configured for UDMA/100
[ 2320.461460] ata1: EH complete
[ 2320.461868] SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
[ 2320.462012] sda: Write Protect is off
[ 2320.462016] sda: Mode Sense: 00 3a 00 00
[ 2320.462203] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
This is on a Thinkpad T60 with 2 GB RAM, running Ubuntu 7.04 (kernel
2.6.20-16-generic). No proprietary drivers (ok, maybe the Intel
Wi-Fi - but that should not count).

The laptop came with Windows but I blew that away - did I mess some
thing up regarding HPA and its ilk?

Thanks,
florin

--
Bruce Schneier expects the Spanish Inquisition.
http://geekz.co.uk/schneierfacts/fact/163
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