Bug 8730
| Summary: | spurious completions during NCQ | ||
|---|---|---|---|
| Product: | IO/Storage | Reporter: | Serge van Thillo (nulleke) |
| Component: | Serial ATA | Assignee: | Tejun Heo (htejun) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | ||
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.21.5 | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
Yeah, that's the same problem. Will forward patch upstream. Thanks. |
Most recent kernel where this bug did not occur: 2.6.21.5 Distribution: LFS Hardware Environment: Thinkpad R60 Software Environment: Problem Description: In the system log file I noticed the following sequences ----- Jul 9 11:38:07 localhost kernel: ata1.00: exception Emask 0x2 SAct 0x7ffffff8 SErr 0x0 action 0x2 frozen Jul 9 11:38:07 localhost kernel: ata1.00: (spurious completions during NCQ issue=0x0 SAct=0x7ffffff8 FIS=004040a1:00000004) Jul 9 11:38:07 localhost kernel: ata1.00: cmd 61/08:18:6f:c3:58/00:00:00:00:00/40 tag 3 cdb 0x0 data 4096 out Jul 9 11:38:07 localhost kernel: res 40/00:f0:47:c4:58/00:00:00:00:00/40 Emask 0x2 (HSM violation) . . Jul 9 11:38:07 localhost kernel: ata1.00: cmd 61/08:f0:47:c4:58/00:00:00:00:00/40 tag 30 cdb 0x0 data 4096 out Jul 9 11:38:07 localhost kernel: res 40/00:f0:47:c4:58/00:00:00:00:00/40 Emask 0x2 (HSM violation) Jul 9 11:38:07 localhost kernel: ata1: soft resetting port Jul 9 11:38:07 localhost kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jul 9 11:38:07 localhost kernel: ata1.00: configured for UDMA/100 Jul 9 11:38:07 localhost kernel: ata1: EH complete Jul 9 11:38:07 localhost kernel: SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB) Jul 9 11:38:07 localhost kernel: sda: Write Protect is off Jul 9 11:38:07 localhost kernel: SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA ----- The harddisk that is in my laptop is : ATA device, with non-removable media Model Number: FUJITSU MHV2080BH Serial Number: NW05T6827L0T Firmware Revision: 00840028 Which I included in the ncq blacklist in libata-core.c. This doesn't show the error anymore, and I don't notice any speed differences. What I do not know if this harddrive has the same problem as hitachi drives that I see a lot more about when I search for th the above error. Steps to reproduce: irregular. (Downloading-, Copying files)