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Date:      Mon, 7 Feb 2022 01:31:40 -0500
From:      grarpamp <grarpamp@gmail.com>
To:        freebsd-current@freebsd.org
Subject:   Re: USB Disk Stalls on -current
Message-ID:  <CAD2Ti2_WP8y9tADUYjH5PykPm8oJyqRjrj-%2Bk_xHU99kFbWNxw@mail.gmail.com>
In-Reply-To: <60ebd011-c2b8-3524-1476-123f11128ffe@freebsd.org>
References:  <7e8459e4-d708-7750-402c-cda2adf6199f@freebsd.org> <CANCZdfqG-%2B9dfFz-%2BeezZaqbPQN5-mQpw%2B214CkiKC%2B_kmW2ig@mail.gmail.com> <60ebd011-c2b8-3524-1476-123f11128ffe@freebsd.org>

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> Feb  6 11:56:43 alice kernel: (da0:umass-sim1:1:0:0): READ(10). CDB: 28
> 00 36 69 02 6e 00 00 80 00
> Feb  6 11:56:43 alice kernel: (da0:umass-sim1:1:0:0): CAM status: CCB
> request completed with an error
> Feb  6 11:56:43 alice kernel: (da0:umass-sim1:1:0:0): Retrying command,
> 2 more tries remain

Isn't there mechanism for kernel/cam/driver to issue a
sense request to fetch and print the actual error...
assuming, which is fine, that the bus or devices aren't
already locked up, in reset, etc such that a sense
would go unfulfilled or already be cleared.



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