Log panic/oops to a block device

modulename: pstore_blk.ko

configname: CONFIG_PSTORE_BLK

Linux Kernel Configuration
└─>File systems
└─>Miscellaneous filesystems
└─>Log panic/oops to a block device
In linux kernel since version 5.1 (release Date: 2019-05-05)  
This enables panic and oops message to be logged to a block dev
where it can be read back at some later point.

For more information, see Documentation/admin-guide/pstore-blk.rst

If unsure, say N.

source code: