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1<?xml version="1.0" encoding="UTF-8"?>
2<!--
3 manpage, user manual, usage: VBoxManage debugvm
4-->
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26<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
27 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"[
28<!ENTITY % all.entities SYSTEM "all-entities.ent">
29%all.entities;
30]>
31<refentry id="vboxmanage-debugvm" lang="en">
32 <refentryinfo>
33 <pubdate>$Date: 2023-01-17 14:15:46 +0000 (Tue, 17 Jan 2023) $</pubdate>
34 <title>VBoxManage debugvm</title>
35 </refentryinfo>
36
37 <refmeta>
38 <refentrytitle>VBoxManage-debugvm</refentrytitle>
39 <manvolnum>1</manvolnum>
40 </refmeta>
41
42 <refnamediv>
43 <refname>VBoxManage-debugvm</refname>
44 <refpurpose>introspection and guest debugging</refpurpose>
45 <refclass>&product-name;</refclass>
46 </refnamediv>
47
48 <refsynopsisdiv>
49 <cmdsynopsis id="synopsis-vboxmanage-debugvm-dumpvmcore">
50 <command>VBoxManage debugvm</command>
51 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
52 <arg choice="plain">dumpvmcore</arg>
53 <arg>--filename=<replaceable>name</replaceable></arg>
54 </cmdsynopsis>
55 <cmdsynopsis id="synopsis-vboxmanage-debugvm-info">
56 <command>VBoxManage debugvm</command>
57 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
58 <arg choice="plain">info</arg>
59 <arg choice="req"><replaceable>item</replaceable></arg>
60 <arg rep="repeat"><replaceable>args</replaceable></arg>
61 </cmdsynopsis>
62 <cmdsynopsis id="synopsis-vboxmanage-debugvm-injectnmi">
63 <command>VBoxManage debugvm</command>
64 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
65 <arg choice="plain">injectnmi</arg>
66 </cmdsynopsis>
67 <cmdsynopsis id="synopsis-vboxmanage-debugvm-log">
68 <command>VBoxManage debugvm</command>
69 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
70 <arg choice="plain">log</arg>
71 <group><arg>--release</arg><arg>--debug</arg></group>
72 <arg rep="repeat"><replaceable>group-settings</replaceable></arg>
73 </cmdsynopsis>
74 <cmdsynopsis id="synopsis-vboxmanage-debugvm-logdest">
75 <command>VBoxManage debugvm</command>
76 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
77 <arg choice="plain">logdest</arg>
78 <group><arg>--release</arg><arg>--debug</arg></group>
79 <arg rep="repeat"><replaceable>destinations</replaceable></arg>
80 </cmdsynopsis>
81 <cmdsynopsis id="synopsis-vboxmanage-debugvm-logflags">
82 <command>VBoxManage debugvm</command>
83 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
84 <arg choice="plain">logflags</arg>
85 <group><arg>--release</arg><arg>--debug</arg></group>
86 <arg rep="repeat"><replaceable>flags</replaceable></arg>
87 </cmdsynopsis>
88 <cmdsynopsis id="synopsis-vboxmanage-debugvm-osdetect">
89 <command>VBoxManage debugvm</command>
90 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
91 <arg choice="plain">osdetect</arg>
92 </cmdsynopsis>
93 <cmdsynopsis id="synopsis-vboxmanage-debugvm-osinfo">
94 <command>VBoxManage debugvm</command>
95 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
96 <arg choice="plain">osinfo</arg>
97 </cmdsynopsis>
98 <cmdsynopsis id="synopsis-vboxmanage-debugvm-osdmesg">
99 <command>VBoxManage debugvm</command>
100 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
101 <arg choice="plain">osdmesg</arg>
102 <arg>--lines=<replaceable>lines</replaceable></arg>
103 </cmdsynopsis>
104 <cmdsynopsis id="synopsis-vboxmanage-debugvm-getregisters">
105 <command>VBoxManage debugvm</command>
106 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
107 <arg choice="plain">getregisters</arg>
108 <arg>--cpu=<replaceable>id</replaceable></arg>
109 <arg rep="repeat"><replaceable>reg-set.reg-name</replaceable></arg>
110 </cmdsynopsis>
111 <cmdsynopsis id="synopsis-vboxmanage-debugvm-setregisters">
112 <command>VBoxManage debugvm</command>
113 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
114 <arg choice="plain">setregisters</arg>
115 <arg>--cpu=<replaceable>id</replaceable></arg>
116 <arg rep="repeat"><replaceable>reg-set.reg-name</replaceable>=<replaceable>value</replaceable></arg>
117 </cmdsynopsis>
118 <cmdsynopsis id="synopsis-vboxmanage-debugvm-show">
119 <command>VBoxManage debugvm</command>
120 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
121 <arg choice="plain">show</arg>
122 <group><arg>--human-readable</arg><arg>--sh-export</arg><arg>--sh-eval</arg><arg>--cmd-set</arg></group>
123 <arg rep="repeat"><replaceable>settings-item</replaceable></arg>
124 </cmdsynopsis>
125 <cmdsynopsis id="synopsis-vboxmanage-debugvm-stack">
126 <command>VBoxManage debugvm</command>
127 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
128 <arg choice="plain">stack</arg>
129 <arg>--cpu=<replaceable>id</replaceable></arg>
130 </cmdsynopsis>
131 <cmdsynopsis id="synopsis-vboxmanage-debugvm-statistics">
132 <command>VBoxManage debugvm</command>
133 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
134 <arg choice="plain">statistics</arg>
135 <arg>--reset</arg>
136 <arg>--descriptions</arg>
137 <arg>--pattern=<replaceable>pattern</replaceable></arg>
138 </cmdsynopsis>
139 <cmdsynopsis id="synopsis-vboxmanage-debugvm-guestsample">
140 <command>VBoxManage debugvm</command>
141 <arg choice="req"><replaceable>uuid|vmname</replaceable></arg>
142 <arg choice="plain">guestsample</arg>
143 <arg>--filename=<replaceable>filename</replaceable></arg>
144 <arg>--sample-interval-us=<replaceable>interval</replaceable></arg>
145 <arg>--sample-time-us=<replaceable>time</replaceable></arg>
146 </cmdsynopsis>
147 </refsynopsisdiv>
148 <refsect1>
149 <title>Description</title>
150
151 <para>The "debugvm" commands are for experts who want to tinker with the
152 exact details of virtual machine execution. Like the VM debugger
153 described in <xref linkend="ts_debugger" />, these commands are only useful if you are
154 very familiar with the details of the PC architecture and how to debug
155 software.</para>
156
157 <refsect2 id="vboxmanage-debugvm-common-options">
158 <title>Common options</title>
159 <remark role="help-scope" condition="GLOBAL"/>
160 <para>The subcommands of <command>debugvm</command> all operate on a running virtual
161 machine:</para>
162 <variablelist>
163 <varlistentry>
164 <term><replaceable>uuid|vmname</replaceable></term>
165 <listitem><para>Either the UUID or the name (case sensitive) of a VM.</para></listitem>
166 </varlistentry>
167 </variablelist>
168 </refsect2>
169
170 <refsect2 id="vboxmanage-debugvm-dumpvmcore">
171 <title>debugvm dumpvmcore</title>
172 <remark role="help-copy-synopsis"/>
173 <para>
174 Creates a system dump file of the specified VM. This file will have
175 the standard ELF core format (with custom sections); see
176 <xref linkend="ts_guest-core-format" />.
177 </para>
178 <para>
179 This corresponds to the <command>writecore</command> command in the debugger.
180 </para>
181 <variablelist>
182 <varlistentry>
183 <term><option>--filename=<replaceable>filename</replaceable></option></term>
184 <listitem><para>The name of the output file.</para></listitem>
185 </varlistentry>
186 </variablelist>
187 </refsect2>
188
189 <refsect2 id="vboxmanage-debugvm-info">
190 <title>debugvm info</title>
191 <remark role="help-copy-synopsis"/>
192 <para>
193 Displays info items relating to the VMM, device emulations and
194 associated drivers.
195 </para>
196 <para>
197 This corresponds to the <command>info</command> command in the debugger.
198 </para>
199 <variablelist>
200 <varlistentry>
201 <term><replaceable>item</replaceable></term>
202 <listitem>
203 <para>Name of the info item to display. The special name
204 <option>help</option> will list all the available info items and
205 hints about optional arguments.</para>
206 </listitem>
207 </varlistentry>
208 <varlistentry>
209 <term><replaceable>args</replaceable></term>
210 <listitem>
211 <para>Optional argument string for the info item handler. Most info items
212 does not take any extra arguments. Arguments not recognized are generally
213 ignored.</para>
214 </listitem>
215 </varlistentry>
216 </variablelist>
217 </refsect2>
218
219 <refsect2 id="vboxmanage-debugvm-injectnmi">
220 <title>debugvm injectnmi</title>
221 <remark role="help-copy-synopsis"/>
222 <para>
223 Causes a non-maskable interrupt (NMI) to be injected into the guest. This
224 might be useful for certain debugging scenarios. What happens exactly is
225 dependent on the guest operating system, but an NMI can crash the whole
226 guest operating system. Do not use unless you know what you're doing.
227 </para>
228 </refsect2>
229
230 <refsect2 id="vboxmanage-debugvm-log">
231 <title>debugvm log</title>
232 <remark role="help-copy-synopsis"/>
233 <para>
234 Changes the group settings for either debug (<option>--debug</option>)
235 or release (<option>--release</option>) logger of the VM process.
236 </para>
237 <para>
238 The <replaceable>group-settings</replaceable> are typically strings on the form
239 <computeroutput>em.e.f.l</computeroutput>, <computeroutput>hm=~0</computeroutput>
240 and <computeroutput>-em.f</computeroutput>. Basic wildcards are supported for
241 group matching. The <computeroutput>all</computeroutput> group is an alias for
242 all the groups.
243 </para>
244 <para>
245 Please do keep in mind that the group settings are applied as modifications
246 to the current ones.
247 </para>
248 <para>
249 This corresponds to the <command>log</command> command in the debugger.
250 </para>
251 </refsect2>
252
253 <refsect2 id="vboxmanage-debugvm-logdest">
254 <title>debugvm logdest</title>
255 <remark role="help-copy-synopsis"/>
256 <para>
257 Changes the destination settings for either debug (<option>--debug</option>)
258 or release (<option>--release</option>) logger of the VM process. For details
259 on the destination format, the best source is src/VBox/Runtime/common/log/log.cpp.
260 </para>
261 <para>
262 The <replaceable>destinations</replaceable> is one or more mnemonics, optionally
263 prefixed by "no" to disable them. Some of them take values after a ":" or "="
264 separator. Multiple mnemonics can be separated by space or given as separate
265 arguments on the command line.
266 </para>
267 <para>
268 List of available destination:
269 </para>
270 <variablelist>
271 <varlistentry>
272 <term><option>file[=<replaceable>file</replaceable>], nofile</option></term>
273 <listitem><para>Specifies a log file. If no filename is given, one will be
274 generated based on the current UTC time and VM process name and placed in
275 the current directory of the VM process. Note that this will currently not
276 have any effect if the log file has already been opened.
277 </para></listitem>
278 </varlistentry>
279 <varlistentry>
280 <term><option>dir=<replaceable>directory</replaceable>, nodir</option></term>
281 <listitem><para>Specifies the output directory for log files. Note that this
282 will currently not have any effect if the log file has already been opened.
283 </para></listitem>
284 </varlistentry>
285 <varlistentry>
286 <term><option>history=<replaceable>count</replaceable>, nohistory</option></term>
287 <listitem><para>A non-zero value enables log historization, with the value
288 specifying how many old log files to keep.
289 </para></listitem>
290 </varlistentry>
291 <varlistentry>
292 <term><option>histsize=<replaceable>bytes</replaceable></option></term>
293 <listitem><para>The max size of a log file before it is historized. Default is infinite.</para></listitem>
294 </varlistentry>
295 <varlistentry>
296 <term><option>histtime=<replaceable>seconds</replaceable></option></term>
297 <listitem><para>The max age (in seconds) of a log file before it is historized. Default is infinite.</para></listitem>
298 </varlistentry>
299 <varlistentry>
300 <term><option>ringbuffer, noringbuffer</option></term>
301 <listitem><para>Only log to the log buffer until an explicit flush (e.g. via an assertion)
302 occurs. This is fast and saves diskspace.</para></listitem>
303 </varlistentry>
304 <varlistentry>
305 <term><option>stdout, nostdout</option></term>
306 <listitem><para>Write the log content to standard output.</para></listitem>
307 </varlistentry>
308 <varlistentry>
309 <term><option>stdout, nostdout</option></term>
310 <listitem><para>Write the log content to standard error.</para></listitem>
311 </varlistentry>
312 <varlistentry>
313 <term><option>debugger, nodebugger</option></term>
314 <listitem><para>Write the log content to the debugger, if supported by the host OS.</para></listitem>
315 </varlistentry>
316 <varlistentry>
317 <term><option>com, nocom</option></term>
318 <listitem><para>Writes logging to the COM port. This is only applicable for raw-mode and ring-0 logging.</para></listitem>
319 </varlistentry>
320 <varlistentry>
321 <term><option>user, nouser</option></term>
322 <listitem><para>Custom destination which has no meaning to VM processes..</para></listitem>
323 </varlistentry>
324 </variablelist>
325 <para>
326 This corresponds to the <command>logdest</command> command in the debugger.
327 </para>
328 </refsect2>
329
330 <refsect2 id="vboxmanage-debugvm-logflags">
331 <title>debugvm logflags</title>
332 <remark role="help-copy-synopsis"/>
333 <para>
334 Changes the flags on either debug (<option>--debug</option>) or release
335 (<option>--release</option>) logger of the VM process. Please note that the
336 modifications are applied onto the existing changes, they are not replacing them.
337 </para>
338 <para>
339 The <replaceable>flags</replaceable> are a list of flag mnemonics, optionally
340 prefixed by a "no", "!", "~" or "-" to negate their meaning. The "+" prefix
341 can be used to undo previous negation or use as a separator, though better use
342 whitespace or separate arguments for that.
343 </para>
344 <para>
345 List of log flag mnemonics, with their counter form where applicable
346 (asterisk indicates defaults):
347 </para>
348 <variablelist>
349 <varlistentry>
350 <term><option>enabled*, disabled</option></term>
351 <listitem><para>Enables or disables logging.</para></listitem>
352 </varlistentry>
353 <varlistentry>
354 <term><option>buffered, unbuffered*</option></term>
355 <listitem><para>Enabling buffering of log output before it hits the destinations.</para></listitem>
356 </varlistentry>
357 <varlistentry>
358 <term><option>writethrough(/writethru)</option></term>
359 <listitem><para>Whether to open the destination file with writethru buffering settings or not.</para></listitem>
360 </varlistentry>
361 <varlistentry>
362 <term><option>flush</option></term>
363 <listitem><para>Enables flushing of the output file (to disk) after each log statement.</para></listitem>
364 </varlistentry>
365 <!-- Prefixes -->
366 <varlistentry>
367 <term><option>lockcnts</option></term>
368 <listitem><para>Prefix each log line with lock counts for the current thread.</para></listitem>
369 </varlistentry>
370 <varlistentry>
371 <term><option>cpuid</option></term>
372 <listitem><para>Prefix each log line with the ID of the current CPU.</para></listitem>
373 </varlistentry>
374 <varlistentry>
375 <term><option>pid</option></term>
376 <listitem><para>Prefix each log line with the current process ID.</para></listitem>
377 </varlistentry>
378 <varlistentry>
379 <term><option>flagno</option></term>
380 <listitem><para>Prefix each log line with the numberic flags corresponding to the log statement.</para></listitem>
381 </varlistentry>
382 <varlistentry>
383 <term><option>flag</option></term>
384 <listitem><para>Prefix each log line with the flag mnemonics corresponding to the log statement.</para></listitem>
385 </varlistentry>
386 <varlistentry>
387 <term><option>groupno</option></term>
388 <listitem><para>Prefix each log line with the log group number for the log statement producing it.</para></listitem>
389 </varlistentry>
390 <varlistentry>
391 <term><option>group</option></term>
392 <listitem><para>Prefix each log line with the log group name for the log statement producing it.</para></listitem>
393 </varlistentry>
394 <varlistentry>
395 <term><option>tid</option></term>
396 <listitem><para>Prefix each log line with the current thread identifier.</para></listitem>
397 </varlistentry>
398 <varlistentry>
399 <term><option>thread</option></term>
400 <listitem><para>Prefix each log line with the current thread name.</para></listitem>
401 </varlistentry>
402 <varlistentry>
403 <term><option>time</option></term>
404 <listitem><para>Prefix each log line with the current UTC wall time.</para></listitem>
405 </varlistentry>
406 <varlistentry>
407 <term><option>timeprog</option></term>
408 <listitem><para>Prefix each log line with the current monotonic time since the start of the program.</para></listitem>
409 </varlistentry>
410 <varlistentry>
411 <term><option>msprog</option></term>
412 <listitem><para>Prefix each log line with the current monotonic timestamp value in milliseconds since the start of the program.</para></listitem>
413 </varlistentry>
414 <varlistentry>
415 <term><option>ts</option></term>
416 <listitem><para>Prefix each log line with the current monotonic timestamp value in nanoseconds.</para></listitem>
417 </varlistentry>
418 <varlistentry>
419 <term><option>tsc</option></term>
420 <listitem><para>Prefix each log line with the current CPU timestamp counter (TSC) value.</para></listitem>
421 </varlistentry>
422 <varlistentry>
423 <term><option>rel, abs*</option></term>
424 <listitem><para>Selects the whether <computeroutput>ts</computeroutput> and
425 <computeroutput>tsc</computeroutput> prefixes should be displayed as relative to the
426 previous log line or as absolute time.</para></listitem>
427 </varlistentry>
428 <varlistentry>
429 <term><option>hex*, dec</option></term>
430 <listitem><para>Selects the whether the <computeroutput>ts</computeroutput> and
431 <computeroutput>tsc</computeroutput> prefixes should be formatted as hexadecimal
432 or decimal.</para></listitem>
433 </varlistentry>
434
435 <!-- Suffixes and weird stuff. -->
436 <varlistentry>
437 <term><option>custom</option></term>
438 <listitem><para>Custom log prefix, has by default no meaning for VM processes.</para></listitem>
439 </varlistentry>
440
441 <varlistentry>
442 <term><option>usecrlf, uself*</option></term>
443 <listitem><para>Output with DOS style (CRLF) or just UNIX style (LF) line endings.</para></listitem>
444 </varlistentry>
445 <varlistentry>
446 <term><option>overwrite*, append</option></term>
447 <listitem><para>Overwrite the destination file or append to it.</para></listitem>
448 </varlistentry>
449 </variablelist>
450
451 <para>
452 This corresponds to the <command>logflags</command> command in the debugger.
453 </para>
454 </refsect2>
455
456 <refsect2 id="vboxmanage-debugvm-osdetect">
457 <title>debugvm osdetect</title>
458 <remark role="help-copy-synopsis"/>
459 <para>
460 Make the VMM's debugger facility (re)-detect the guest operating system (OS).
461 This will first load all debugger plug-ins.
462 </para>
463 <para>
464 This corresponds to the <command>detect</command> command in the debugger.
465 </para>
466 </refsect2>
467
468 <refsect2 id="vboxmanage-debugvm-osinfo">
469 <title>debugvm osinfo</title>
470 <remark role="help-copy-synopsis"/>
471 <para>
472 Displays information about the guest operating system (OS) previously
473 detected by the VMM's debugger facility.
474 </para>
475 </refsect2>
476
477 <refsect2 id="vboxmanage-debugvm-osdmesg">
478 <title>debugvm osdmesg</title>
479 <remark role="help-copy-synopsis"/>
480 <para>
481 Displays the guest OS kernel log, if detected and supported.
482 </para>
483 <variablelist>
484 <varlistentry>
485 <term><option>--lines=<replaceable>lines</replaceable></option></term>
486 <listitem><para>Number of lines of the log to display, counting from
487 the end. The default is infinite.</para></listitem>
488 </varlistentry>
489 </variablelist>
490 </refsect2>
491
492 <refsect2 id="vboxmanage-debugvm-getregisters">
493 <title>debugvm getregisters</title>
494 <remark role="help-copy-synopsis"/>
495 <para>
496 Retrieves register values for guest CPUs and emulated devices.
497 </para>
498 <variablelist>
499 <varlistentry>
500 <term><replaceable>reg-set.reg-name</replaceable></term>
501 <listitem>
502 <para>One of more registers, each having one of the following forms:</para>
503 <orderedlist>
504 <listitem><para>register-set.register-name.sub-field</para></listitem>
505 <listitem><para>register-set.register-name</para></listitem>
506 <listitem><para>cpu-register-name.sub-field</para></listitem>
507 <listitem><para>cpu-register-name</para></listitem>
508 <listitem><para>all</para></listitem>
509 </orderedlist>
510 <para>The <replaceable>all</replaceable> form will cause all registers
511 to be shown (no sub-fields). The registers names are case-insensitive.
512 </para>
513 </listitem>
514 </varlistentry>
515 <varlistentry>
516 <term><option>--cpu=<replaceable>id</replaceable></option></term>
517 <listitem><para>Selects the CPU register set when specifying just a
518 CPU register (3rd and 4th form). The default is 0.</para>
519 </listitem>
520 </varlistentry>
521 </variablelist>
522 </refsect2>
523
524 <refsect2 id="vboxmanage-debugvm-setregisters">
525 <title>debugvm setregisters</title>
526 <remark role="help-copy-synopsis"/>
527 <para>
528 Changes register values for guest CPUs and emulated devices.
529 </para>
530 <variablelist>
531 <varlistentry>
532 <term><replaceable>reg-set.reg-name=value</replaceable></term>
533 <listitem>
534 <para>One of more register assignment, each having one of the following forms:</para>
535 <orderedlist>
536 <listitem><para>register-set.register-name.sub-field=value</para></listitem>
537 <listitem><para>register-set.register-name=value</para></listitem>
538 <listitem><para>cpu-register-name.sub-field=value</para></listitem>
539 <listitem><para>cpu-register-name=value</para></listitem>
540 </orderedlist>
541 <para>The value format should be in the same style as what
542 <command>getregisters</command> displays, with the exception that
543 both octal and decimal can be used instead of hexadecimal.</para>
544 </listitem>
545 </varlistentry>
546 <varlistentry>
547 <term><option>--cpu=<replaceable>id</replaceable></option></term>
548 <listitem><para>Selects the CPU register set when specifying just a
549 CPU register (3rd and 4th form). The default is 0.</para>
550 </listitem>
551 </varlistentry>
552 </variablelist>
553 </refsect2>
554
555 <refsect2 id="vboxmanage-debugvm-show">
556 <title>debugvm show</title>
557 <remark role="help-copy-synopsis"/>
558 <para>
559 Shows logging settings for the VM.
560 </para>
561 <variablelist>
562 <varlistentry>
563 <term><option>--human-readable</option></term>
564 <listitem><para>Selects human readable output.</para></listitem>
565 </varlistentry>
566 <varlistentry>
567 <term><option>--sh-export</option></term>
568 <listitem><para>Selects output format as bourne shell style <command>export</command> commands.</para></listitem>
569 </varlistentry>
570 <varlistentry>
571 <term><option>--sh-eval</option></term>
572 <listitem><para>Selects output format as bourne shell style <command>eval</command> command input.</para></listitem>
573 </varlistentry>
574 <varlistentry>
575 <term><option>--cmd-set</option></term>
576 <listitem><para>Selects output format as DOS style <command>SET</command> commands.</para></listitem>
577 </varlistentry>
578 <varlistentry>
579 <term><replaceable>settings-item</replaceable></term>
580 <listitem>
581 <para>What to display. One or more of the following:</para>
582 <itemizedlist>
583 <listitem><para>logdbg-settings - debug log settings.</para></listitem>
584 <listitem><para>logrel-settings - release log settings.</para></listitem>
585 <listitem><para>log-settings - alias for both debug and release log settings.</para></listitem>
586 </itemizedlist>
587 </listitem>
588 </varlistentry>
589 </variablelist>
590
591 </refsect2>
592
593 <refsect2 id="vboxmanage-debugvm-stack">
594 <title>debugvm stack</title>
595 <remark role="help-copy-synopsis"/>
596 <para>
597 Unwinds the guest CPU stacks to the best of our ability. It is
598 recommended to first run the <command>osdetect</command> command, as this
599 gives both symbols and perhaps unwind information.
600 </para>
601 <variablelist>
602 <varlistentry>
603 <term><option>--cpu=<replaceable>id</replaceable></option></term>
604 <listitem><para>Selects a single guest CPU to display the stack for. The default is all CPUs.</para> </listitem>
605 </varlistentry>
606 </variablelist>
607
608 </refsect2>
609
610 <refsect2 id="vboxmanage-debugvm-statistics">
611 <title>debugvm statistics</title>
612 <remark role="help-copy-synopsis"/>
613 <para>
614 Displays or resets VMM statistics.
615 </para>
616 <para>
617 Retrieves register values for guest CPUs and emulated devices.
618 </para>
619 <variablelist>
620 <varlistentry>
621 <term><option>--pattern=<replaceable>pattern</replaceable></option></term>
622 <listitem><para>DOS/NT-style wildcards patterns for selecting statistics. Multiple
623 patterns can be specified by using the '|' (pipe) character as separator.</para>
624 </listitem>
625 </varlistentry>
626 <varlistentry>
627 <term><option>--reset</option></term>
628 <listitem><para>Select reset instead of display mode.</para></listitem>
629 </varlistentry>
630 </variablelist>
631
632 </refsect2>
633
634 <refsect2 id="vboxmanage-debugvm-guestsample">
635 <title>debugvm guestsample</title>
636 <remark role="help-copy-synopsis"/>
637 <para>
638 Creates a sample report of the guest activity.
639 </para>
640 <para>
641 Retrieves the filename to dump the report to.
642 </para>
643 <variablelist>
644 <varlistentry>
645 <term><option>--filename=<replaceable>filename</replaceable></option></term>
646 <listitem><para>The filename to dump the sample report to.</para>
647 </listitem>
648 </varlistentry>
649 <varlistentry>
650 <term><option>--sample-interval-us=<replaceable>interval</replaceable></option></term>
651 <listitem><para>The interval in microseconds between guest samples.</para>
652 </listitem>
653 </varlistentry>
654 <varlistentry>
655 <term><option>--sample-time-us=<replaceable>time</replaceable></option></term>
656 <listitem><para>The amount of microseconds to take guest samples.</para>
657 </listitem>
658 </varlistentry>
659 </variablelist>
660
661 </refsect2>
662
663 </refsect1>
664
665</refentry>
666
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