[Bug 43191] Syslog fills with messages about assuming drive cache when SD card not present

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https://bugzilla.kernel.org/show_bug.cgi?id=43191





--- Comment #4 from Christian Kujau <lists@nerdbynature.de>  2012-05-03 06:55:27 ---
Noticed this on a "Lenovo Ideapad S10" as well. Ubuntu #925760 has a workaround
for this:

$ rmmod ums_realtek

 usbcore: deregistering interface driver ums-realtek

And the messages stop. As soon as the module is loaded again, the messages
resume and repeat every 52 seconds:

$ modprobe ums_realtek

May  2 23:50:46 scsi5 : usb-storage 1-5:1.0
May  2 23:50:46 usbcore: registered new interface driver ums-realtek
May  2 23:50:47 scsi 5:0:0:0: Direct-Access Generic- Multi-Card 1.00 PQ: 0
ANSI: 0 CCS
May  2 23:50:47 sd 5:0:0:0: Attached scsi generic sg1 type 0
May  2 23:50:47 sd 5:0:0:0: [sdb] Attached SCSI removable disk

May  2 23:51:38 sd 5:0:0:0: [sdb] Test WP failed, assume Write Enabled
May  2 23:51:38 sd 5:0:0:0: [sdb] Asking for cache data failed
May  2 23:51:38 sd 5:0:0:0: [sdb] Assuming drive cache: write through
May  2 23:52:30 sd 5:0:0:0: [sdb] Test WP failed, assume Write Enabled
May  2 23:52:30 sd 5:0:0:0: [sdb] Asking for cache data failed
May  2 23:52:30 sd 5:0:0:0: [sdb] Assuming drive cache: write through

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