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Date:      Sat, 13 Jul 2019 09:49:06 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 239182] acpidb issues
Message-ID:  <bug-239182-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239182

            Bug ID: 239182
           Summary: acpidb issues
           Product: Base System
           Version: 12.0-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: d8zNeCFG@aon.at

Scenario:
- Laptop Lenovo W520 (ca. 2011)
- Trying to use and learn /usr/sbin/acpidb

Results when executing the following commands (the three sections show the
display at various stage of execution):

- Initial double prompt:
------------------------------------------------------------------
[0]# acpidump -o /tmp/dsdt=20=20
[0]# acpidb /tmp/dsdt
Input file /tmp/dsdt, Length 0x105F6 (67062) bytes

-=20
-=20
------------------------------------------------------------------

- First character eaten & command ignored, second command ignored entirely,
third command accepted, thereafter the prompt is missing:
------------------------------------------------------------------
[0]# acpidb /tmp/dsdt
Input file /tmp/dsdt, Length 0x105F6 (67062) bytes

-=20
- Methods
ETHODS: unknown command
- Methods
- Methods
Objects of type [Method] defined in the current ACPI Namespace:
                           \_OSI Method       0x8006ea5f0 00 Args 1 Len 0000
Aml 0x0

Found 2 objects of type [Method] in the current ACPI Namespace

------------------------------------------------------------------

- Evaluating the \OSI method crashes the program:
------------------------------------------------------------------
[0]# acpidb /tmp/dsdt
Input file /tmp/dsdt, Length 0x105F6 (67062) bytes

-=20
- Methods
ETHODS: unknown command
- Methods
- Methods
Objects of type [Method] defined in the current ACPI Namespace:
                           \_OSI Method       0x8006ea5f0 00 Args 1 Len 0000
Aml 0x0

Found 2 objects of type [Method] in the current ACPI Namespace
- Evaluate \_OSI "FreeBSD"
Evaluating \_OSI
zsh: segmentation fault (core dumped)  acpidb /tmp/dsdt
[139]# \rm acpidb.core
[0]#=20
------------------------------------------------------------------

Expected results:
- The command starts with two consecutive prompts. Expected would be one.
- Starting the command seems to eat the first character input. This should =
not
happen.
- The prompting is strange: The prompt appears after entering the first
character. Expected is that the prompt is displayed when the debugger is re=
ady
to accept another command.
- Executing the \_OSI method crashes the program.

Question:
- Why do I not see any other methods?
- How could I execute the other methods shown in "acpidump -dt"?


-- Martin

--=20
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