cam(scsi): silence "Medium not present" SCSI sense logging for removable media
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Authored by guest-seuros on Feb 14 2026, 8:07 PM.

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imp
emaste

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cam

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rG3d218b6289cf: cam (scsi): silence "Medium not present" SCSI sense logging for removable media

Summary

Change SS_FATAL to SS_FAIL for SCSI sense code 0x3A (Medium not present) to suppress console spam when card readers or other removable media devices
have no media inserted.

The error is still returned to callers (ENXIO), but no longer prints to dmesg during boot/probe.

Verified with Apple SD Card Reader - reduced boot messages from 4 to 2.

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

guest-seuros created this revision.Feb 14 2026, 8:07 PM

guest-seuros held this revision as a draft.

Herald added a reviewer: cam. · View Herald TranscriptFeb 14 2026, 8:07 PM

Herald added a subscriber: imp. · View Herald Transcript

Harbormaster completed remote builds in B70674: Diff 171903.Feb 14 2026, 8:07 PM

guest-seuros published this revision for review.Feb 14 2026, 8:11 PM

guest-seuros edited the summary of this revision. (Show Details)

guest-seuros added a reviewer: imp.

This is likely a good change. 3a/0 is definitely right, not sure about the other two.

This revision is now accepted and ready to land.Feb 15 2026, 4:47 AM

In D55287#1264434, @imp wrote:

not sure about the other two.

This change is about semantics. An ejected CD, empty tray, or missing tape is a transient media state, not a fatal device condition. Marking it as SS_FAIL better reflects that distinction.

Only 3A/00 was tested with an SD reader. i can follow up with additional testing on optical media and can amend or reopen a diff if needed.

The first bit of the commit message (subject) should be the general subsystem, I imagine it could be cam: here

I'm happy to land this. Abdelkader Boudih <freebsd@seuros.com> as the Git author info?

Yes.

guest-seuros retitled this revision from cam: silence "Medium not present" SCSI sense logging for removable media to cam(scsi): silence "Medium not present" SCSI sense logging for removable media.Thu, Mar 19, 8:35 PM

Author: Abdelkader Boudih <freebsd@seuros.com>

Is the author that used last time. Since that matches, it's good.

Closed by commit rG3d218b6289cf: cam (scsi): silence "Medium not present" SCSI sense logging for removable media (authored by guest-seuros, committed by emaste). · Explain WhyFri, Mar 20, 3:30 PM

This revision was automatically updated to reflect the committed changes.

emaste added a commit: rG3d218b6289cf: cam (scsi): silence "Medium not present" SCSI sense logging for removable media.