[Bug 37382] Re: ata timeout freezes system partly

[Michael Boyle]

Acer 5612 Intel Core Duo Feisty.

The freeze occurred as follows

May 29 07:10:53 
May 29 07:19:50 
May 29 07:30:36 
May 29 07:33:51 
May 29 07:42:37 
May 29 12:02:15 
May 29 12:05:00 
May 29 12:07:08 
May 29 12:12:30 
May 29 12:17:58 
May 29 12:43:27 
May 29 13:12:50 
May 29 13:20:44 
May 29 13:46:54 
May 29 13:49:30 
May 29 13:50:37 
May 29 13:57:28 
May 29 15:54:45 
May 29 15:59:23 
May 29 16:02:45 
May 29 16:09:03 
May 29 16:12:00 
May 29 16:17:57 
May 29 16:30:20 
May 29 16:47:33 
May 29 16:51:26 
May 29 17:03:53 
May 29 17:15:57 
May 29 17:21:48 
May 29 17:28:55 
May 29 18:01:36 
May 29 18:12:07 
May 29 18:13:18 

Full dump of one incident. (typical)

May 29 18:13:18 mb-server kernel: [40529.799911] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
May 29 18:13:18 mb-server kernel: [40529.799927] ata1.01: cmd a0/00:00:00:00:20/00:00:00:00:00/b0 tag 0 cdb 0x1e data 0 
May 29 18:13:18 mb-server kernel: [40529.799930]          res 40/00:03:00:00:00/00:00:00:00:00/b0 Emask 0x4 (timeout)
May 29 18:13:25 mb-server kernel: [40536.793812] ata1: port is slow to respond, please be patient (Status 0xd0)
May 29 18:13:48 mb-server kernel: [40559.776592] ata1: port failed to respond (30 secs, Status 0xd0)
May 29 18:13:48 mb-server kernel: [40559.776603] ata1: soft resetting port
May 29 18:13:49 mb-server kernel: [40560.120794] ata1.00: ata_hpa_resize 1: sectors = 117210240, hpa_sectors = 117210240
May 29 18:13:49 mb-server kernel: [40560.128781] ata1.00: ata_hpa_resize 1: sectors = 117210240, hpa_sectors = 117210240
May 29 18:13:49 mb-server kernel: [40560.128788] ata1.00: configured for UDMA/100
May 29 18:13:49 mb-server kernel: [40560.308249] ata1.01: configured for UDMA/33
May 29 18:13:49 mb-server kernel: [40560.308265] ata1: EH complete
May 29 18:13:49 mb-server kernel: [40560.316298] SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
May 29 18:13:49 mb-server kernel: [40560.316524] sda: Write Protect is off
May 29 18:13:49 mb-server kernel: [40560.316530] sda: Mode Sense: 00 3a 00 00
May 29 18:13:49 mb-server kernel: [40560.316861] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
May 29 18:13:49 mb-server kernel: [40560.317241] SCSI device sda: 117210240 512-byte hdwr sectors (60012 MB)
May 29 18:13:49 mb-server kernel: [40560.317483] sda: Write Protect is off
May 29 18:13:49 mb-server kernel: [40560.317489] sda: Mode Sense: 00 3a 00 00
May 29 18:13:49 mb-server kernel: [40560.317973] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA

-- 
ata timeout freezes system partly
https://bugs.launchpad.net/bugs/37382
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