Comment 0 for bug 1920874

Ubuntu version: 20.10
Kernel: 5.10.0-1013-oem

Card reader: Realtek Card Reader (0bda:0328 and 0bda:0158)

Summary
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After upgrading to kernel 5.9.0-rc3 or later, the device node for the partitions on the memory cards will not disappear after removing the memory cards. This is confusing to the user level applications like File Browser since the partition label will remain there for a long time.

Steps to reproduce
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1. Upgrade to kernel later than 5.9.0-rc3
2. Plug the external card reader and insert the formatted memory card
3. Verify if the memory card mounted and visible on File Browser
4. Remove the memory card from the card reader
5. Verify if the mounted memory card removed from the File Browser

Expected results
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The mounted memory card identifier should be disappear after remove the memory card

Actual results
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The partition label of the memory card exists for a long time.