Bug 81071 - Queued Trim not disabled for all versions of Crucial M550
Summary: Queued Trim not disabled for all versions of Crucial M550
Status: RESOLVED CODE_FIX
Alias: None
Product: IO/Storage
Classification: Unclassified
Component: Serial ATA (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Tejun Heo
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-07-24 21:22 UTC by Charles Reiss
Modified: 2014-08-18 21:43 UTC (History)
1 user (show)

See Also:
Kernel Version: >= 3.14
Subsystem:
Regression: No
Bisected commit-id:

Attachments
crucial-m550-match.patch (1.16 KB, patch)
2014-08-18 21:43 UTC, Tejun Heo 		Details | Diff
Add an attachment (proposed patch, testcase, etc.)

Description Charles Reiss 2014-07-24 21:22:55 UTC 
The ATA device blacklist checks model numbers (in libata-core.c) against the glob pattern "Crucial_CT???M550SSD*" to blacklist queued trim for buggy firmware on the Crucial M550 SSD, but the 1TB model will have a model number like "Crucial_CT1024M550SSD1", which won't match. Presumably, it shares the firmware bug and should also be blacklisted.
Comment 1 Tejun Heo 2014-08-18 21:43:12 UTC 
Created attachment 147171 [details]
crucial-m550-match.patch

Patch applied to libata/for-3.17-fixes w/ stable cc'd.

Thanks.
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