Bug 81071

Summary:	Queued Trim not disabled for all versions of Crucial M550
Product:	IO/Storage	Reporter:	Charles Reiss (woggling)
Component:	Serial ATA	Assignee:	Tejun Heo (tj)
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	woggling
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	>= 3.14	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	crucial-m550-match.patch

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.