https://github.com/rocm/rocr_debug_agent
The ROCdebug-agent is a library that can be loaded by ROCm Platform Runtime to provide some debugging functionality.
https://github.com/rocm/rocr_debug_agent
Last synced: 6 months ago
JSON representation
The ROCdebug-agent is a library that can be loaded by ROCm Platform Runtime to provide some debugging functionality.
- Host: GitHub
- URL: https://github.com/rocm/rocr_debug_agent
- Owner: ROCm
- License: other
- Created: 2017-11-11T15:58:41.000Z (over 8 years ago)
- Default Branch: amd-staging
- Last Pushed: 2026-01-15T12:47:26.000Z (6 months ago)
- Last Synced: 2026-01-15T16:57:24.133Z (6 months ago)
- Language: C++
- Homepage: https://rocm.docs.amd.com/projects/rocr_debug_agent/en/latest/
- Size: 365 KB
- Stars: 32
- Watchers: 28
- Forks: 10
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE.txt
- Codeowners: CODEOWNERS
Awesome Lists containing this project
README
AMD ROCm Debug Agent Library (ROCdebug-agent)
=============================================
> [!NOTE]
> The published documentation is available at [ROCR Debug
> Agent](https://rocm.docs.amd.com/projects/rocr_debug_agent/en/latest/index.html)
> in an organized, easy-to-read format, with search and a table of contents.
> The documentation source files reside in the `rocr_debug_agent/docs` folder
> of this repository. As with all ROCm projects, the documentation is open
> source. For more information on contributing to the documentation, see
> [Contribute to ROCm
> documentation](https://rocm.docs.amd.com/en/latest/contribute/contributing.html).
Introduction
------------
The AMD ROCm Debug Agent (ROCdebug-agent) is a library that can be loaded by the
ROCm Platform Runtime (ROCr) to provide the following functionality:
- Print the state of all AMD GPU wavefronts that caused a queue error (for
example, causing a memory violation, executing an ``s_trap 2``, or executing
an illegal instruction).
- Print the state of all AMD GPU wavefronts by sending a SIGQUIT signal to the
process (for example, by pressing ``Ctrl-\``) while the program is executing.
This functionality is provided for all AMD GPUs supported by the ROCm Debugger
API Library (ROCdbgapi).
Usage
-----
To display the source text location with the machine code instructions around
the wavefronts' pc, compile the AMD GPU code objects with ``-ggdb``. In
addition, ``-O0``, while not required, will help the source text location
displayed to be more intuitive as higher optimization levels can reorder
machine code instructions. If ``-ggdb`` is not used, source line information
will not be available and only machine code instructions starting at the
wavefronts' pc will be printed. For example:
````sh
/opt/rocm/bin/hipcc -O0 -ggdb -o my_program my_program.cpp
````
To use the ROCdebug-agent set the ``HSA_TOOLS_LIB`` environment variable to the
file name or path of the library. For example:
````sh
HSA_TOOLS_LIB=/opt/rocm/lib/librocm-debug-agent.so.2 ./my_program
````
If the application encounters a triggering event, it will print the state of
some or all AMD GPU wavefronts. For example, a sample print out is:
````console
Queue error (HSA_STATUS_ERROR_EXCEPTION: An HSAIL operation resulted in a hardware exception.)
--------------------------------------------------------
wave_1: pc=0x7fd4f100d0e8 (stopped, reason: ASSERT_TRAP)
system registers:
m0: 00000000 status: 00012461 trapsts: 20000000 mode: 000003c0
ttmp4: 00000001 ttmp5: 00000000 ttmp6: f51a0080 ttmp7: 000000d5
ttmp8: 00000000 ttmp9: 00000000 ttmp10: 00000000 ttmp11: 000000c0
ttmp13: 00000000
exec: 0000000000000001 vcc: 0000000000000000
xnack_mask: 0000000000012460 flat_scratch: 00807fac01000000
scalar registers:
s0: f520c000 s1: 00007fd5 s2: 00000000 s3: 00ea4fac
s4: f51a0080 s5: 00007fd5 s6: f520c000 s7: 00007fd5
s8: f1002000 s9: 00007fd4 s10: 00000000 s11: 00000000
s12: f1000000 s13: 00007fd4 s14: f1001000 s15: 00007fd4
s16: f5186070 s17: 00007fd5 s18: f100e070 s19: 00007fd4
s20: f5186070 s21: 00007fd5 s22: f100e070 s23: 00007fd4
s24: 00004000 s25: 00010000
vector registers:
v0: [0] 00000000 [1] f1002004 [2] f1002008 [3] f100200c [4] f1002010 [5] f1002014 [6] f1002018 [7] f100201c [8] f1002020 [9] f1002024 [10] f1002028 [11] f100202c [12] f1002030 [13] f1002034 [14] f1002038 [15] f100203c [16] f1002040 [17] f1002044 [18] f1002048 [19] f100204c [20] f1002050 [21] f1002054 [22] f1002058 [23] f100205c [24] f1002060 [25] f1002064 [26] f1002068 [27] f100206c [28] f1002070 [29] f1002074 [30] f1002078 [31] f100207c [32] f1002080 [33] f1002084 [34] f1002088 [35] f100208c [36] f1002090 [37] f1002094 [38] f1002098 [39] f100209c [40] f10020a0 [41] f10020a4 [42] f10020a8 [43] f10020ac [44] f10020b0 [45] f10020b4 [46] f10020b8 [47] f10020bc [48] f10020c0 [49] f10020c4 [50] f10020c8 [51] f10020cc [52] f10020d0 [53] f10020d4 [54] f10020d8 [55] f10020dc [56] f10020e0 [57] f10020e4 [58] f10020e8 [59] f10020ec [60] f10020f0 [61] f10020f4 [62] f10020f8 [63] f10020fc
v1: [0] 00000000 [1] 00007fd4 [2] 00007fd4 [3] 00007fd4 [4] 00007fd4 [5] 00007fd4 [6] 00007fd4 [7] 00007fd4 [8] 00007fd4 [9] 00007fd4 [10] 00007fd4 [11] 00007fd4 [12] 00007fd4 [13] 00007fd4 [14] 00007fd4 [15] 00007fd4 [16] 00007fd4 [17] 00007fd4 [18] 00007fd4 [19] 00007fd4 [20] 00007fd4 [21] 00007fd4 [22] 00007fd4 [23] 00007fd4 [24] 00007fd4 [25] 00007fd4 [26] 00007fd4 [27] 00007fd4 [28] 00007fd4 [29] 00007fd4 [30] 00007fd4 [31] 00007fd4 [32] 00007fd4 [33] 00007fd4 [34] 00007fd4 [35] 00007fd4 [36] 00007fd4 [37] 00007fd4 [38] 00007fd4 [39] 00007fd4 [40] 00007fd4 [41] 00007fd4 [42] 00007fd4 [43] 00007fd4 [44] 00007fd4 [45] 00007fd4 [46] 00007fd4 [47] 00007fd4 [48] 00007fd4 [49] 00007fd4 [50] 00007fd4 [51] 00007fd4 [52] 00007fd4 [53] 00007fd4 [54] 00007fd4 [55] 00007fd4 [56] 00007fd4 [57] 00007fd4 [58] 00007fd4 [59] 00007fd4 [60] 00007fd4 [61] 00007fd4 [62] 00007fd4 [63] 00007fd4
v2: [0] 22222222 [1] 11111125 [2] 1111111b [3] 11111123 [4] 1111111d [5] 1111111c [6] 1111111a [7] 1111111d [8] 1111111a [9] 1111111b [10] 1111111c [11] 11111118 [12] 11111123 [13] 1111111c [14] 11111119 [15] 11111117 [16] 1111111d [17] 11111114 [18] 1111111b [19] 11111117 [20] 1111111a [21] 1111111d [22] 11111118 [23] 11111120 [24] 11111118 [25] 1111111c [26] 1111111d [27] 1111111e [28] 1111111a [29] 11111122 [30] 1111111e [31] 11111120 [32] 11111123 [33] 11111119 [34] 1111111c [35] 1111111d [36] 11111116 [37] 1111111a [38] 1111111d [39] 1111111c [40] 11111113 [41] 11111115 [42] 1111111d [43] 1111111f [44] 1111111e [45] 1111111c [46] 1111111f [47] 1111111e [48] 11111117 [49] 11111115 [50] 1111111a [51] 11111121 [52] 1111111f [53] 1111111b [54] 1111111b [55] 11111124 [56] 11111116 [57] 11111125 [58] 11111123 [59] 1111111b [60] 1111111a [61] 11111119 [62] 11111118 [63] 11111123
v3: [0] 11111111 [1] 11111111 [2] 11111111 [3] 11111111 [4] 11111111 [5] 11111111 [6] 11111111 [7] 11111111 [8] 11111111 [9] 11111111 [10] 11111111 [11] 11111111 [12] 11111111 [13] 11111111 [14] 11111111 [15] 11111111 [16] 11111111 [17] 11111111 [18] 11111111 [19] 11111111 [20] 11111111 [21] 11111111 [22] 11111111 [23] 11111111 [24] 11111111 [25] 11111111 [26] 11111111 [27] 11111111 [28] 11111111 [29] 11111111 [30] 11111111 [31] 11111111 [32] 11111111 [33] 11111111 [34] 11111111 [35] 11111111 [36] 11111111 [37] 11111111 [38] 11111111 [39] 11111111 [40] 11111111 [41] 11111111 [42] 11111111 [43] 11111111 [44] 11111111 [45] 11111111 [46] 11111111 [47] 11111111 [48] 11111111 [49] 11111111 [50] 11111111 [51] 11111111 [52] 11111111 [53] 11111111 [54] 11111111 [55] 11111111 [56] 11111111 [57] 11111111 [58] 11111111 [59] 11111111 [60] 11111111 [61] 11111111 [62] 11111111 [63] 11111111
v4: [0] f10115b0 [1] 0000000a [2] 00000005 [3] 00000009 [4] 00000004 [5] 00000001 [6] 00000001 [7] 0000000a [8] 00000004 [9] 00000005 [10] 00000008 [11] 00000002 [12] 00000008 [13] 00000001 [14] 00000006 [15] 00000005 [16] 00000005 [17] 00000001 [18] 00000001 [19] 00000002 [20] 00000006 [21] 00000006 [22] 00000002 [23] 0000000a [24] 00000001 [25] 00000001 [26] 0000000a [27] 00000006 [28] 00000001 [29] 00000008 [30] 0000000a [31] 00000009 [32] 00000009 [33] 00000007 [34] 0000000a [35] 00000007 [36] 00000003 [37] 00000003 [38] 00000008 [39] 00000001 [40] 00000001 [41] 00000002 [42] 00000005 [43] 00000009 [44] 00000005 [45] 00000005 [46] 0000000a [47] 00000003 [48] 00000004 [49] 00000001 [50] 00000002 [51] 0000000a [52] 0000000a [53] 00000001 [54] 00000007 [55] 0000000a [56] 00000004 [57] 0000000a [58] 00000008 [59] 00000006 [60] 00000008 [61] 00000001 [62] 00000004 [63] 00000009
v5: [0] 00007fd4 [1] 00007fd4 [2] 00007fd4 [3] 00007fd4 [4] 00007fd4 [5] 00007fd4 [6] 00007fd4 [7] 00007fd4 [8] 00007fd4 [9] 00007fd4 [10] 00007fd4 [11] 00007fd4 [12] 00007fd4 [13] 00007fd4 [14] 00007fd4 [15] 00007fd4 [16] 00007fd4 [17] 00007fd4 [18] 00007fd4 [19] 00007fd4 [20] 00007fd4 [21] 00007fd4 [22] 00007fd4 [23] 00007fd4 [24] 00007fd4 [25] 00007fd4 [26] 00007fd4 [27] 00007fd4 [28] 00007fd4 [29] 00007fd4 [30] 00007fd4 [31] 00007fd4 [32] 00007fd4 [33] 00007fd4 [34] 00007fd4 [35] 00007fd4 [36] 00007fd4 [37] 00007fd4 [38] 00007fd4 [39] 00007fd4 [40] 00007fd4 [41] 00007fd4 [42] 00007fd4 [43] 00007fd4 [44] 00007fd4 [45] 00007fd4 [46] 00007fd4 [47] 00007fd4 [48] 00007fd4 [49] 00007fd4 [50] 00007fd4 [51] 00007fd4 [52] 00007fd4 [53] 00007fd4 [54] 00007fd4 [55] 00007fd4 [56] 00007fd4 [57] 00007fd4 [58] 00007fd4 [59] 00007fd4 [60] 00007fd4 [61] 00007fd4 [62] 00007fd4 [63] 00007fd4
v6: [0] 00007ffe [1] 00007ffe [2] 00007ffe [3] 00007ffe [4] 00007ffe [5] 00007ffe [6] 00007ffe [7] 00007ffe [8] 00007ffe [9] 00007ffe [10] 00007ffe [11] 00007ffe [12] 00007ffe [13] 00007ffe [14] 00007ffe [15] 00007ffe [16] 00007ffe [17] 00007ffe [18] 00007ffe [19] 00007ffe [20] 00007ffe [21] 00007ffe [22] 00007ffe [23] 00007ffe [24] 00007ffe [25] 00007ffe [26] 00007ffe [27] 00007ffe [28] 00007ffe [29] 00007ffe [30] 00007ffe [31] 00007ffe [32] 00007ffe [33] 00007ffe [34] 00007ffe [35] 00007ffe [36] 00007ffe [37] 00007ffe [38] 00007ffe [39] 00007ffe [40] 00007ffe [41] 00007ffe [42] 00007ffe [43] 00007ffe [44] 00007ffe [45] 00007ffe [46] 00007ffe [47] 00007ffe [48] 00007ffe [49] 00007ffe [50] 00007ffe [51] 00007ffe [52] 00007ffe [53] 00007ffe [54] 00007ffe [55] 00007ffe [56] 00007ffe [57] 00007ffe [58] 00007ffe [59] 00007ffe [60] 00007ffe [61] 00007ffe [62] 00007ffe [63] 00007ffe
v7: [0] 3d3495ac [1] bd0dfb7a [2] bcc1143a [3] bca64d59 [4] bc112d79 [5] 3cbcc8c8 [6] 3ce69f7c [7] 3de967fe [8] bdee8d4d [9] 3c9e426b [10] bc6d380f [11] 3c18495c [12] be38843f [13] bd5a1da8 [14] 3d80c7e4 [15] bc978798 [16] 3cd52d8d [17] bd58d230 [18] 3e2e91ac [19] bca54a71 [20] 3c3cea13 [21] 3c888a4b [22] 3de0a868 [23] 3d220de3 [24] 3ce4d6f8 [25] bc033ce0 [26] bb38519f [27] b9a4b621 [28] bd800802 [29] bdb04d27 [30] bc826d02 [31] bd4aa05d [32] 3dae9483 [33] b921dac8 [34] 3d194f79 [35] bd1ccbd9 [36] bd45f9c5 [37] bc1b4cb0 [38] 3db1ab4b [39] 3e0487ab [40] 3d37f334 [41] 3b983eb8 [42] 3caba2a4 [43] bd8944ea [44] be01bee7 [45] bbbf22d8 [46] 3d076472 [47] bd2eb34c [48] 3c3da426 [49] 3d754b6d [50] 3c08a069 [51] bcdeca32 [52] be12e2e4 [53] 3c92d0e2 [54] 3d1480e4 [55] 3d817751 [56] 3db0072c [57] 3d6fc70b [58] bd6a67a1 [59] 3da0f9ed [60] 3b67b5e6 [61] bdb8002e [62] 3cd0a9b9 [63] 386eee2b
Local memory content:
0x0000: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0020: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0040: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0060: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0080: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x00a0: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x00c0: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x00e0: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0100: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0120: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0140: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0160: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x0180: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x01a0: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x01c0: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
0x01e0: 22222222 11111111 22222222 11111111 22222222 11111111 22222222 11111111
Disassembly for function vector_add_assert_trap(int*, int*, int*):
code object: file:////rocm-debug-agent/build/test/rocm-debug-agent-test#offset=14309&size=31336
loaded at: [0x7fd4f100c000-0x7fd4f100e070]
/rocm-debug-agent/test/vector_add_assert_trap.cpp:
55 c[gid] = a[gid] + b[gid] + (lds_check[0] >> 32);
0x7fd4f100d0c4 <+196>: s_waitcnt vmcnt(0) lgkmcnt(0)
0x7fd4f100d0c8 <+200>: v_add3_u32 v2, v2, v4, v3
0x7fd4f100d0d0 <+208>: global_store_dword v[0:1], v2, off
0x7fd4f100d0d8 <+216>: s_or_saveexec_b64 s[0:1], s[0:1]
0x7fd4f100d0dc <+220>: s_xor_b64 exec, exec, s[0:1]
0x7fd4f100d0e0 <+224>: s_cbranch_execz 65503 # 0x7fd4f100d060
53 __builtin_trap ();
0x7fd4f100d0e4 <+228>: s_mov_b64 s[0:1], s[6:7]
=> 0x7fd4f100d0e8 <+232>: s_trap 2
0x7fd4f100d0ec <+236>: s_endpgm
End of disassembly.
Aborted (core dumped)
````
The supported triggering events are:
- __Memory fault__
A memory fault happens when an AMD GPU accesses a page that is not
accessible. The information about the memory fault is printed. For example:
````console
System event (HSA_AMD_GPU_MEMORY_FAULT_EVENT: page not present or supervisor privilege, write access to a read-only page)
Faulting page: 0x7fbe4cc01000
````
There could be multiple memory faults, but the information about only one is
printed.
A memory fault does not specify the wavefront that caused it. However, the
stop reason for each wavefront is available. For example:
````console
wave_0: pc=0x7fbe4cc0d0b4 (stopped, reason: MEMORY_VIOLATION)
````
- __Assert trap__
This occurs when an ``s_trap 2`` instruction is executed. The
``__builtin_trap()`` language builtin, or ``llvm.trap`` LLVM IR instruction,
can be used to generate this AMD GPU instruction.
- __Illegal instruction__
This occurs when the hardware detects an illegal instruction.
- __SIGQUIT ``(Ctrl-\)``__
A SIGQUIT signal can be sent to a process with the ``kill -s SIGQUIT ``
command or by pressing ``Ctrl-\``. See the ``--disable-linux-signals``
option for more information.
Options
-------
Options are passed through the ``ROCM_DEBUG_AGENT_OPTIONS`` environment
variable. For example:
````shell
ROCM_DEBUG_AGENT_OPTIONS="--all --save-code-objects" \
HSA_TOOLS_LIB=librocm-debug-agent.so.2 ./my_program
````
The supported options are:
- __``-a``, ``--all``__
Prints all wavefronts.
If not specified, only wavefronts that have a triggering event are printed.
- __``-p``, ``--precise-memory``__
Enables precise memory operations if supported by the devices.
When an exception occurs, precise memory ensures that the PC points to the
instruction immediately following the one causing the exception.
- __``-e``, ``--precise-alu-exceptions``__
Enables precise ALU exceptions reporting if supported by the devices.
When an exception occurs, precise ALU exceptions reporting ensures that the
PC points to the instruction immediately following the one causing the
exception.
- __``-s [DIR]``, ``--save-code-objects[=DIR]``__
Saves all loaded code objects. If the directory is not specified, the code
objects are saved in the current directory.
The file name in which the code object is saved is the same as the code
object URI with special characters replaced by ``'_'``, prefixed with a
unique code object ID. For example, the code object URI:
````
file:///rocm-debug-agent/rocm-debug-agent-test#offset=14309&size=31336
````
is saved in a file with the name:
````
1_file____rocm-debug-agent_rocm-debug-agent-test_offset_14309_size_31336
````
- __``-o ``, ``--output=``__
Saves the output produced by the ROCdebug-agent in the specified file.
By default, the output is redirected to ``stderr``.
- __``-d``, ``--disable-linux-signals``__
Disables installing a SIGQUIT signal handler, so that the default Linux
handler may dump a core file.
By default, the ROCdebug-agent installs a SIGQUIT handler to print the state of
all wavefronts when a SIGQUIT signal is sent to the process.
- __``-l ``, ``--log-level=``__
Changes the ROCdebug-agent and ROCdbgapi log level. The log level can be
`none`, `info`, `warning`, or `error`.
The default log level is ``none``.
- __``-h``, ``--help``__
Displays a usage message and aborts the process.
Build the ROCdebug-agent library
---------------------------------
The ROCdebug-agent library can be built on Ubuntu 18.04, Ubuntu 20.04, Centos
8.1, RHEL 8.1, and SLES 15 Service Pack 1.
Building the ROCdebug-agent library has the following prerequisites:
1. A C++17 compiler such as GCC 7 or Clang 5.
2. The AMD ROCm software stack which can be installed as part of the AMD ROCm
release by the ``rocm-dev`` package.
3. For Ubuntu 22.04 and Ubuntu 24.04 the following adds the needed packages:
````shell
apt install gcc g++ make cmake libelf-dev libdw-dev
````
4. For CentOS 8 and RHEL 8/9 the following adds the needed packages:
````shell
yum install gcc gcc-c++ make cmake elfutils-libelf-devel elfutils-devel
````
5. For SLES 15 the following adds the needed packages:
````shell
zypper install gcc gcc-c++ make cmake libelf-devel libdw-devel
````
6. Python version 3.6 or later is required to run the tests.
An example command-line to build and install the ROCdebug-agent library on
Linux is:
````shell
cd rocm-debug-agent
mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../install ..
make
````
Use the ``CMAKE_INSTALL_PREFIX`` to specify where the ROCdebug-agent library
should be installed. The default location is `/usr`.
Use ``CMAKE_MODULE_PATH`` to specify a ``';'`` separated list of paths that
will be used to locate cmake modules. It is used to locate the HIP cmake
modules required to build the tests. The default is ``/opt/rocm/hip/cmake``
The built ROCdebug-agent library will be placed in:
- ``build/librocm-debug-agent.so.2*``
To install the ROCdebug-agent library:
````shell
make install
````
The installed ROCdebug-agent library and tests will be placed in:
- ``/lib/librocm-debug-agent.so.2*``
- ``/share/rocm-debug-agent/LICENSE.txt``
- ``/share/rocm-debug-agent/README.md``
- ``/src/rocm-debug-agent-test/*``
To use the ROCdebug-agent library, the ROCdbgapi library must be installed.
This can be installed as part of the ROCm release by the ``rocm-dbgapi``
package.
Test the ROCdebug-agent library
--------------------------------
To test the ROCdebug-agent library:
````shell
make test
````
The output should be:
````console
Running tests...
Test project /rocm-debug-agent/build
Start 1: rocm-debug-agent-test
1/1 Test #1: rocm-debug-agent-test ............ Passed 1.59 sec
100% tests passed, 0 tests failed out of 1
Total Test time (real) = 1.59 sec
````
Tests can be run individually outside of the CTest harness. For example:
````shell
HSA_TOOLS_LIB=librocm-debug-agent.so.2 test/rocm-debug-agent-test 0
HSA_TOOLS_LIB=librocm-debug-agent.so.2 test/rocm-debug-agent-test 1
HSA_TOOLS_LIB=librocm-debug-agent.so.2 test/rocm-debug-agent-test 2
````
Known Limitations and Restrictions
----------------------------------
- A disassembly of the wavefront faulting PC is only provided if it is within a
code object.
- A disassembly of the wavefront faulting PC only includes source text
correlation and surrounding context if the ``libdw.so`` library included with
the distribution supports the DWARF present in the code object. Otherwise,
the disassembly may only shows the instructions immediately after the
faulting PC.
Disclaimer
----------
The information contained herein is for informational purposes only and is
subject to change without notice. While every precaution has been taken in the
preparation of this document, it may contain technical inaccuracies, omissions
and typographical errors, and AMD is under no obligation to update or otherwise
correct this information. Advanced Micro Devices, Inc. makes no
representations or warranties with respect to the accuracy or completeness of
the contents of this document, and assumes no liability of any kind, including
the implied warranties of noninfringement, merchantability or fitness for
particular purposes, with respect to the operation or use of AMD hardware,
software or other products described herein. No license, including implied or
arising by estoppel, to any intellectual property rights is granted by this
document. Terms and limitations applicable to the purchase or use of AMD’s
products are as set forth in a signed agreement between the parties or in AMD’s
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