Hi!

> Not block, but it seems scsi subsystem is:

commit 21e6ba3f0e0257cce1a226c1f15e0a8ba4338ca3
Author: Bart Van Assche <bvanassche@acm.org>
Date:   Wed Mar 20 13:09:19 2019 -0700

    scsi: sd: Rely on the driver core for asynchronous probing

    As explained during the 2018 LSF/MM session about increasing SCSI
    disk
        probing concurrency, the problems with the current probing
    approach are as

Seems to be responsible. Full log attached.

								Pavel
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