Bug 201941 - Errors with SanDisk and Samsung 64GB micro SD cards on ThinkPad E485
Summary: Errors with SanDisk and Samsung 64GB micro SD cards on ThinkPad E485
Status: NEW
Alias: None
Product: IO/Storage
Classification: Unclassified
Component: SCSI (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: linux-scsi@vger.kernel.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-12-09 12:59 UTC by alexander.reimelt
Modified: 2018-12-09 13:02 UTC (History)
0 users

See Also:
Kernel Version: 4.19.4
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmesg -l err | grep mmc (23.23 KB, text/plain)
2018-12-09 12:59 UTC, alexander.reimelt 		Details
lspci -vvs 03:00.0 (3.35 KB, text/plain)
2018-12-09 13:02 UTC, alexander.reimelt 		Details
Add an attachment (proposed patch, testcase, etc.)

Description alexander.reimelt 2018-12-09 12:59:19 UTC 
Created attachment 279909 [details]
dmesg -l err | grep mmc

The kernel detects the card and I can see it with lsblk but I can't read or write to it. The cards works under Windows (not tested on this pc) and on my Android phone with kernel 3.10.108. I have an other old 2GB card that works on my Thinkpad E485 without any issues with linux. Seems to be a issue with the card reader (D Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)).
Comment 1 alexander.reimelt 2018-12-09 13:02:37 UTC 
Created attachment 279911 [details]
lspci -vvs 03:00.0
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