                    Writing FreeBSD Problem Reports

  Dag-Erling Smo/rgrav

  Mark Linimon

   $FreeBSD: doc/zh_TW.Big5/articles/problem-reports/article.sgml,v
   1.1 2006/06/17 10:22:43 vanilla Exp $

   FreeBSD NOTO FreeBSDDEGo-a-:.|-a-ouuYENUDEGO 1/4D-

   CVSup NOTO John D. Polstra -a-ouuYENUDEGO 1/4D-!C

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   '(TM)' (c)I '(R)' ^2AA,^1"O 1/4D-uu!C

   This article describes how to best formulate and submit a problem
   report to the FreeBSD Project.

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

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

1. Introduction

   One of the most frustrating experiences one can have as a software
   user is to submit a problem report only to have it summarily
   closed with a terse and unhelpful explanation like !S:not a bug!"
   or !S:bogus PR!". Similarly, one of the most frustrating
   experiences as a software developer is to be flooded with problem
   reports that are not really problem reports but requests for
   support, or that contain little or no information about what the
   problem is and how to reproduce it.

   This document attempts to describe how to write good problem
   reports. What, you ask, is a good problem report? Well, to go
   straight to the bottom line, a good problem report is one that can
   be analyzed and dealt with swiftly, to the mutual satisfaction of
   both user and developer.

   Although the primary focus of this article is on FreeBSD problem
   reports, most of it should apply quite well to other software
   projects.

   Note that this article is organized thematically, not
   chronologically, so you should read through the entire document
   before submitting a problem report, rather than treat it as a
   step-by-step tutorial.

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

2. When to submit a problem report

   There are many types of problems, and not all of them should
   engender a problem report. Of course, nobody is perfect, and there
   will be times when you are convinced you have found a bug in a
   program when in fact you have misunderstood the syntax for a
   command or made a typographical error in a configuration file
   (though that in itself may sometimes be indicative of poor
   documentation or poor error handling in the application). There
   are still many cases where submitting a problem report is clearly
   not the right course of action, and will only serve to frustrate
   you and the developers. Conversely, there are cases where it might
   be appropriate to submit a problem report about something else
   than a bug!X!Xan enhancement or a feature request, for instance.

   So how do you determine what is a bug and what is not? As a simple
   rule of thumb your problem is not a bug if it can be expressed as
   a question (usually of the form !S:How do I do X?!" or !S:Where
   can I find Y?!"). It is not always quite so black and white, but
   the question rule covers a large majority of cases. If you are
   looking for an answer, consider posing your question to the
   FreeBSD general questions P:l>> 1/4 1/2 * 3/4A.

   Some cases where it may be appropriate to submit a problem report
   about something that is not a bug are:

     * Requests for feature enhancements. It is generally a good idea
       to air these on the mailing lists before submitting a problem
       report.

     * Notification of updates to externally maintained software
       (mainly ports, but also externally maintained base system
       components such as BIND or various GNU utilities).

       For unmaintained ports (MAINTAINER contains
       ports@FreeBSD.org), such update notifications might get picked
       up by an interested committer, or you might be asked to
       provide a patch to update the port; providing it upfront will
       greatly improve your chances that the port will get updated in
       a timely manner.

       If the port is maintained, PRs announcing new upstream
       releases are usually not very useful since they generate
       supplementary work for the committers, and the maintainer
       likely knows already there is a new version, they have
       probably worked with the developers on it, they are probably
       testing to see there is no regression, etc.

       In either case, following the process described in Porter's
       Handbook will yield the best results.

   A bug that can not be reproduced can rarely be fixed. If the bug
   only occurred once and you can not reproduce it, and it does not
   seem to happen to anybody else, chances are none of the developers
   will be able to reproduce it or figure out what is wrong. That
   does not mean it did not happen, but it does mean that the chances
   of your problem report ever leading to a bug fix are very slim. To
   make matters worse, often these kinds of bugs are actually caused
   by failing hard drives or overheating processors !X!X you should
   always try to rule out these causes, whenever possible, before
   submitting a PR.

   Next, to decide to whom you should file your problem report, you
   need to understand that the software that makes up FreeBSD is
   composed of several different elements:

     * Code in the base system that is written and maintained by
       FreeBSD contributors, such as the kernel, the C library, and
       the device drivers (categorized as kern); the binary utilities
       (bin); the manual pages and documentation (docs); and the web
       pages (www). All bugs in these areas should be reported to the
       FreeBSD developers.

     * Code in the base system that is written and maintained by
       others, and imported into FreeBSD and adapted. Examples
       include bind, gcc(1), and sendmail(8). Most bugs in these
       areas should be reported to the FreeBSD developers; but in
       some cases they may need to be reported to the original
       authors instead if the problems are not FreeBSD-specific.
       Usually these bugs will fall under either the bin or gnu
       categories.

     * Individual applications that are not in the base system but
       are instead part of the FreeBSD Ports Collection (category
       ports). Most of these applications are not written by FreeBSD
       developers; what FreeBSD provides is merely a framework for
       installing the application. Therefore, you should only report
       a problem to the FreeBSD developers when you believe the
       problem is FreeBSD-specific; otherwise, you should report it
       to the authors of the software.

   Then you should ascertain whether or not the problem is timely.
   There are few things that will annoy a developer more than
   receiving a problem report about a bug she has already fixed.

   If the problem is in the base system, you should first read the
   FAQ section on FreeBSD versions, if you are not already familiar
   with the topic. It is not possible for FreeBSD to fix problems in
   anything other than certain recent branches of the base system, so
   filing a bug report about an older version will probably only
   result in a developer advising you to upgrade to a supported
   version to see if the problem still recurs. The Security Officer
   team maintains the list of supported versions.

   If the problem is in a port, note that you must first upgrade to
   the latest version of the Ports Collection and see if the problem
   still applies. Due to the rapid pace of changes in these
   applications, it is infeasible for FreeBSD to support anything
   other than the absolute latest versions, and problems with older
   version of applications simply cannot be fixed.

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

3. Preparations

   A good rule to follow is to always do a background search before
   submitting a problem report. Maybe your problem has already been
   reported; maybe it is being discussed on the mailing lists, or
   recently was; it may even already be fixed in a newer version than
   what you are running. You should therefore check all the obvious
   places before submitting your problem report. For FreeBSD, this
   means:

     * The FreeBSD Frequently Asked Questions (FAQ) list. The FAQ
       attempts to provide answers for a wide range of questions,
       such as those concerning hardware compatibility, user
       applications, and kernel configuration.

     * The mailing lists!X!Xif you are not subscribed, use the
       searchable archives on the FreeBSD web site. If your problem
       has not been discussed on the lists, you might try posting a
       message about it and waiting a few days to see if someone can
       spot something you have overlooked.

     * Optionally, the entire web!X!Xuse your favorite search engine
       to locate any references to your problem. You may even get
       hits from archived mailing lists or newsgroups you did not
       know of or had not thought to search through.

     * Next, the searchable FreeBSD PR database (GNATS). Unless your
       problem is recent or obscure, there is a fair chance it has
       already been reported.

     * Most importantly, you should attempt to see if existing
       documentation in the source base addresses your problem.

       For the base FreeBSD code, you should carefully study the
       contents of the /usr/src/UPDATING file on your system or its
       latest version at
       http://www.FreeBSD.org/cgi/cvsweb.cgi/src/UPDATING. (This is
       vital information if you are upgrading from one version to
       another!X!Xespecially if you are upgrading to the
       FreeBSD-CURRENT branch).

       However, if the problem is in something that was installed as
       a part of the FreeBSD Ports Collection, you should refer to
       /usr/ports/UPDATING (for individual ports) or
       /usr/ports/CHANGES (for changes that affect the entire Ports
       Collection).
       http://www.FreeBSD.org/cgi/cvsweb.cgi/ports/UPDATING and
       http://www.FreeBSD.org/cgi/cvsweb.cgi/ports/CHANGES are also
       available via CVSweb.

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

4. Writing the problem report

   Now that you have decided that your issue merits a problem report,
   and that it is a FreeBSD problem, it is time to write the actual
   problem report. Before we get into the mechanics of the program
   used to generate and submit PRs, here are some tips and tricks to
   help make sure that your PR will be most effective.

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

  4.1. Tips and tricks for writing a good problem report

     * Do not leave the !S:Synopsis!" line empty. The PRs go both
       onto a mailing list that goes all over the world (where the
       !S:Synopsis!" is used for the Subject: line), but also into a
       database. Anyone who comes along later and browses the
       database by synopsis, and finds a PR with a blank subject
       line, tends just to skip over it. Remember that PRs stay in
       this database until they are closed by someone; an anonymous
       one will usually just disappear in the noise.

     * Avoid using a weak !S:Synopsis!" line. You should not assume
       that anyone reading your PR has any context for your
       submission, so the more you provide, the better. For instance,
       what part of the system does the problem apply to? Do you only
       see the problem while installing, or while running? To
       illustrate, instead of Synopsis: portupgrade is broken, see
       how much more informative this seems: Synopsis: port
       sysutils/portupgrade coredumps on -current. (In the case of
       ports, it is especially helpful to have both the category and
       portname in the !S:Synopsis!" line.)

     * If you have a patch, say so. A PR with a patch included is
       much more likely to be looked at than one without. If you are
       including one, put the string [patch] at the beginning of the
       !S:Synopsis!". (Although it is not mandatory to use that exact
       string, by convention, that is the one that is used.)

     * If you are a maintainer, say so. If you are maintaining a part
       of the source code (for instance, a port), you might consider
       adding the string [maintainer update] at the beginning of your
       synopsis line, and you definitely should set the !S:Class!" of
       your PR to maintainer-update. This way any committer that
       handles your PR will not have to check.

     * Be specific. The more information you supply about what
       problem you are having, the better your chance of getting a
       response.

          * Include the version of FreeBSD you are running (there is
            a place to put that, see below) and on which
            architecture. You should include whether you are running
            from a release (e.g. from a CDROM or download), or from a
            system maintained by cvsup(1) (and, if so, how recently
            you updated). If you are tracking the FreeBSD-CURRENT
            branch, that is the very first thing someone will ask,
            because fixes (especially for high-profile problems) tend
            to get committed very quickly, and FreeBSD-CURRENT users
            are expected to keep up.

          * Include which global options you have specified in your
            make.conf. Note: specifying -O2 and above to gcc(1) is
            known to be buggy in many situations. While the FreeBSD
            developers will accept patches, they are generally
            unwilling to investigate such issues due to simple lack
            of time and volunteers, and may instead respond that this
            just is not supported.

          * If this is a kernel problem, then be prepared to supply
            the following information. (You do not have to include
            these by default, which only tends to fill up the
            database, but you should include excerpts that you think
            might be relevant):

               * your kernel configuration (including which hardware
                 devices you have installed)

               * whether or not you have debugging options enabled
                 (such as WITNESS), and if so, whether the problem
                 persists when you change the sense of that option

               * a backtrace, if one was generated

               * the fact that you have read src/UPDATING and that
                 your problem is not listed there (someone is
                 guaranteed to ask)

               * whether or not you can run any other kernel as a
                 fallback (this is to rule out hardware-related
                 issues such as failing disks and overheating CPUs,
                 which can masquerade as kernel problems)

          * If this is a ports problem, then be prepared to supply
            the following information. (You do not have to include
            these by default, which only tends to fill up the
            database, but you should include excerpts that you think
            might be relevant):

               * which ports you have installed

               * any environment variables that override the defaults
                 in bsd.port.mk, such as PORTSDIR

               * the fact that you have read ports/UPDATING and that
                 your problem is not listed there (someone is
                 guaranteed to ask)

     * Avoid vague requests for features. PRs of the form !S:someone
       should really implement something that does so-and-so!" are
       less likely to get results than very specific requests.
       Remember, the source is available to everyone, so if you want
       a feature, the best way to ensure it being included is to get
       to work! Also consider the fact that many things like this
       would make a better topic for discussion on freebsd-questions
       than an entry in the PR database, as discussed above.

     * Make sure no one else has already submitted a similar PR.
       Although this has already been mentioned above, it bears
       repeating here. It only take a minute or two to use the
       web-based search engine at
       http://www.FreeBSD.org/cgi/query-pr-summary.cgi?query. (Of
       course, everyone is guilty of forgetting to do this now and
       then.)

     * Avoid controversial requests. If your PR addresses an area
       that has been controversial in the past, you should probably
       be prepared to not only offer patches, but also justification
       for why the patches are !S:The Right Thing To Do!". As noted
       above, a careful search of the mailing lists using the
       archives at
       http://www.FreeBSD.org/search/search.html#mailinglists is
       always good preparation.

     * Be polite. Almost anyone who would potentially work on your PR
       is a volunteer. No one likes to be told that they have to do
       something when they are already doing it for some motivation
       other than monetary gain. This is a good thing to keep in mind
       at all times on Open Source projects.

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

  4.2. Before you begin

   If you are using the send-pr(1) program, make sure your VISUAL (or
   EDITOR if VISUAL is not set) environment variable is set to
   something sensible.

   You should also make sure that mail delivery works fine.
   send-pr(1) uses mail messages for the submission and tracking of
   problem reports. If you cannot post mail messages from the machine
   you are running send-pr(1) on, your problem report will not reach
   the GNATS database. For details on the setup of mail on FreeBSD,
   see the !S:Electronic Mail!" chapter of the FreeBSD Handbook at
   http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/mail.html.

   Make sure that your mailer will not mangle the message on its way
   to GNATS. In particular, if your mailer automatically breaks
   lines, changes tabs to spaces, or escapes newline characters, any
   patch that you submit will be rendered unusable. For the text
   sections, however, we request that you insert manual linebreaks
   somewhere around 70 characters, so that the web display of the PR
   will be readable.

   Similar considerations apply if you are using the web-based PR
   submittal form instead of send-pr(1). Note that cut-and-paste
   operations can have their own side-effects on text formatting. In
   certain cases it may be necessary to use uuencode(1) to ensure
   that patches arrive unmodified.

   Finally, if your submission will be lengthy, you should to prepare
   your work offline so that nothing will be lost in case there is a
   problem submitting it. This can be an especial problem with the
   web form.

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

  4.3. Attaching patches or files

   The following applies to submitting PRs via email:

   The send-pr(1) program has provisions for attaching files to a
   problem report. You can attach as many files as you want provided
   that each has a unique base name (i.e. the name of the file
   proper, without the path). Just use the -a command-line option to
   specify the names of the files you wish to attach:

 % send-pr -a /var/run/dmesg -a /tmp/errors

   Do not worry about binary files, they will be automatically
   encoded so as not to upset your mail agent.

   If you attach a patch, make sure you use the -c or -u option to
   diff(1) to create a context or unified diff (unified is
   preferred), and make sure to specify the exact CVS revision
   numbers of the files you modified so the developers who read your
   report will be able to apply them easily. For problems with the
   kernel or the base utilities, a patch against FreeBSD-CURRENT (the
   HEAD CVS branch) is preferred since all new code should be applied
   and tested there first. After appropriate or substantial testing
   has been done, the code will be merged/migrated to the
   FreeBSD-STABLE branch.

   If you attach a patch inline, instead of as an attachment, note
   that the most common problem by far is the tendency of some email
   programs to render tabs as spaces, which will completely ruin
   anything intended to be part of a Makefile.

   Do not send patches as attachments using
   Content-Transfer-Encoding: quoted-printable. These will perform
   character escaping and the entire patch will be useless.

   Also note that while including small patches in a PR is generally
   all right!X!Xparticularly when they fix the problem described in
   the PR!X!Xlarge patches and especially new code which may require
   substantial review before committing should be placed on a web or
   ftp server, and the URL should be included in the PR instead of
   the patch. Patches in email tend to get mangled, especially when
   GNATS is involved, and the larger the patch, the harder it will be
   for interested parties to unmangle it. Also, posting a patch on
   the web allows you to modify it without having to resubmit the
   entire patch in a followup to the original PR. Finally, large
   patches simply increase the size of the database, since closed PRs
   are not actually deleted but instead kept and simply marked as
   closed.

   You should also take note that unless you explicitly specify
   otherwise in your PR or in the patch itself, any patches you
   submit will be assumed to be licensed under the same terms as the
   original file you modified.

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

  4.4. Filling out the template

   The next section applies to the email method only:

   When you run send-pr(1), you are presented with a template. The
   template consists of a list of fields, some of which are
   pre-filled, and some of which have comments explaining their
   purpose or listing acceptable values. Do not worry about the
   comments; they will be removed automatically if you do not modify
   them or remove them yourself.

   At the top of the template, below the SEND-PR: lines, are the
   email headers. You do not normally need to modify these, unless
   you are sending the problem report from a machine or account that
   can send but not receive mail, in which case you will want to set
   the From: and Reply-To: to your real email address. You may also
   want to send yourself (or someone else) a carbon copy of the
   problem report by adding one or more email addresses to the Cc:
   header.

   In the email template you will find the following two single-line
   fields:

     * Submitter-Id: Do not change this. The default value of
       current-users is correct, even if you run FreeBSD-STABLE.

     * Confidential: This is prefilled to no. Changing it makes no
       sense as there is no such thing as a confidential FreeBSD
       problem report!X!Xthe PR database is distributed worldwide by
       CVSup.

   The next section describes fields that are common to both the
   email interface and the web interface:

     * Originator: Please specify your real name, optionally followed
       by your email address in angle brackets. In the email
       interface, this is normally prefilled with the gecos field of
       the currently logged-in user.

         Note: The email address you use will become public
         information and may become available to spammers. You should
         either have spam handling procedures in place, or use a
         temporary email account. However, please note that if you do
         not use a valid email account at all, we will not be able to
         ask you questions about your PR.

     * Organization: Whatever you feel like. This field is not used
       for anything significant.

     * Synopsis: Fill this out with a short and accurate description
       of the problem. The synopsis is used as the subject of the
       problem report email, and is used in problem report listings
       and summaries; problem reports with obscure synopses tend to
       get ignored.

       As noted above, if your problem report includes a patch,
       please have the synopsis start with [patch]; if this is a
       ports PR and you are the maintainer, you may consider adding
       [maintainer update] and set the !S:Class!" of your PR to
       maintainer-update.

     * Severity: One of non-critical, serious or critical. Do not
       overreact; refrain from labeling your problem critical unless
       it really is (e.g. data corruption issues, serious regression
       from previous functionality in -CURRENT) or serious unless it
       is something that will affect many users (kernel panics or
       freezes; problems with particular device drivers or system
       utilities). FreeBSD developers will not necessarily work on
       your problem faster if you inflate its importance since there
       are so many other people who have done exactly that !X!X in
       fact, some developers pay little attention to this field
       because of this.

         Note: Major security problems should not be filed in GNATS,
         because all GNATS information is public knowledge. Please
         send such problems in private email to Security Officer Team
         <security-officer@FreeBSD.org>.

     * Priority: One of low, medium or high. high should be reserved
       for problems that will affect practically every user of
       FreeBSD and medium for something that will affect many users.

         Note: This field has become so widely abused that it is
         almost completely meaningless.

     * Category: Choose an appropriate category.

         Note: There are a number of "platform" categories into which
         bugs in the base system that are specific to one particular
         hardware architecture should be filed. Problems that are
         generic all across versions of FreeBSD should probably be
         filed as kern or bin; see discussion of those categories
         below.

         Example: you have a common PC-based machine, and think you
         have encountered a problem specific to a particular chipset
         or a particular motherboard: i386 is the right category.

         Example: You are having a problem with an add-in peripheral
         card on a commonly seen bus, or a problem with a particular
         type of hard disk drive: in this case, it probably applies
         to more than one architecture, and kern is the right
         category.

       Here is the current list of categories (taken from
       http://www.FreeBSD.org/cgi/cvsweb.cgi/src/gnu/usr.bin/send-pr/categories):

          * advocacy: problems relating to FreeBSD's public image.
            Rarely used.

          * alpha: problems specific to the Alpha platform.

          * amd64: problems specific to the AMD64 platform.

          * bin: problems with userland programs in the base system.
            If running whereis(1) shows /bin, /usr/sbin, or something
            similar, then this is probably the right category. (A few
            contributed programs might instead need to be in gnu; see
            below.)

          * conf: problems with configuration files, default values,
            and so forth. Things that affect /usr/share or /etc/rc*
            belong here.

          * docs: problems with manual pages or on-line
            documentation.

          * gnu: problems with imported GNU software such as gcc(1)
            or grep(1).

          * i386: problems specific to the i386(TM) platform.

          * ia64: problems specific to the ia64 platform.

          * java: problems related to the Java(TM) Virtual Machine.
            (Ports that merely depend on Java to run should be filed
            under ports.)

          * kern: problems with the kernel, (non-platform-specific)
            device drivers, or the base libraries.

          * misc: anything that does not fit in any of the other
            categories. (Note that there is almost nothing that truly
            belongs in this category, except for problems with the
            release and build infrastructure. Temporary build
            failures on HEAD do not belong here. Also note that it is
            easy for things to get lost in this category).

          * ports: problems relating to the ports tree.

          * powerpc: problems specific to the PowerPC(R) platform.

          * sparc64: problems specific to the Sparc64(R) platform.

          * standards: Standards conformance issues.

          * threads: problems related to the FreeBSD threads
            implementation (especially on FreeBSD-CURRENT).

          * usb: problems related to the FreeBSD USB implementation.

          * www: Changes or enhancements to the FreeBSD website.
            Problems with code found in /usr/ports/www do not belong
            here, they belong in ports instead.

     * Class: Choose one of the following:

          * sw-bug: software bugs.

          * doc-bug: errors in documentation.

          * change-request: requests for additional features or
            changes in existing features.

          * update: updates to ports or other contributed software.

          * maintainer-update: updates to ports for which you are the
            maintainer.

     * Release: The version of FreeBSD that you are running. This is
       filled out automatically if you are using send-pr(1) and need
       only be changed if you are sending a problem report from a
       different system than the one that exhibits the problem.

   Finally, there is a series of multi-line fields:

     * Environment: This should describe, as accurately as possible,
       the environment in which the problem has been observed. This
       includes the operating system version, the version of the
       specific program or file that contains the problem, and any
       other relevant items such as system configuration, other
       installed software that influences the problem, etc.!X!Xquite
       simply everything a developer needs to know to reconstruct the
       environment in which the problem occurs.

     * Description: A complete and accurate description of the
       problem you are experiencing. Try to avoid speculating about
       the causes of the problem unless you are certain that you are
       on the right track, as it may mislead a developer into making
       incorrect assumptions about the problem.

     * How-To-Repeat: A summary of the actions you need to take to
       reproduce the problem.

     * Fix: Preferably a patch, or at least a workaround (which not
       only helps other people with the same problem work around it,
       but may also help a developer understand the cause for the
       problem), but if you do not have any firm ideas for either, it
       is better to leave this field blank than to speculate.

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

  4.5. Sending off the problem report

   If you are using send-pr(1):

   Once you are done filling out the template, have saved it, and
   exit your editor, send-pr(1) will prompt you with s)end, e)dit or
   a)bort?. You can then hit s to go ahead and submit the problem
   report, e to restart the editor and make further modifications, or
   a to abort. If you choose the latter, your problem report will
   remain on disk (send-pr(1) will tell you the filename before it
   terminates), so you can edit it at your leisure, or maybe transfer
   it to a system with better net connectivity, before sending it
   with the -f to send-pr(1):

 % send-pr -f ~/my-problem-report

   This will read the specified file, validate the contents, strip
   comments and send it off.

   If you are using the web form:

   Before you hit submit, you will need to fill in a field containing
   text that is represented in image form on the page. This
   unfortunate measure has had to be adopted due to misuse by
   automated systems and a few misguided individuals. It is a
   necessary evil that no one likes; please do not ask us to remove
   it.

   Note that you are strongly advised to save your work somewhere
   before hitting submit. A common problem for users is to have their
   web browser displaying a stale image from its cache. If this
   happens to you, your submission will be rejected and you may lose
   your work.

   If you are unable to view images for any reason, and are also
   unable to use send-pr(1), please accept our apologies for the
   inconvenience and email your problem report to the bugbuster team
   at <freebsd-bugbusters@FreeBSD.org>.

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

5. Follow-up

   Once your problem report has been filed, you will receive a
   confirmation by email which will include the tracking number that
   was assigned to your problem report and a URL you can use to check
   its status. With a little luck, someone will take an interest in
   your problem and try to address it, or, as the case may be,
   explain why it is not a problem. You will be automatically
   notified of any change of status, and you will receive copies of
   any comments or patches someone may attach to your problem
   report's audit trail.

   If someone requests additional information from you, or you
   remember or discover something you did not mention in the initial
   report, please use one of two methods to submit your followup:

     * The easiest way is to use the followup link on the individual
       PR's web page, which you can reach from the PR search page.
       Clicking on this link will bring up an an email window with
       the correct To: and Subject: lines filled in (if your browser
       is configured to do this).

     * Alternatively, you can just mail it to
       <bug-followup@FreeBSD.org>, making sure that the tracking
       number is included in the subject so the bug tracking system
       will know what problem report to attach it to.

         Note: If you do not include the tracking number, GNATS will
         become confused and create an entirely new PR which it then
         assigns to the GNATS administrator, and then your followup
         will become lost until someone comes in to clean up the
         mess, which could be days or weeks afterwards.

         Wrong way:

 Subject: that PR I sent

         Right way:

 Subject: Re: ports/12345: compilation problem with foo/bar

   If the problem report remains open after the problem has gone
   away, just send a follow-up (in the manner prescribed above)
   saying that the problem report can be closed, and, if possible,
   explaining how or when the problem was fixed.

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

6. If you are having problems

   Most PRs go through the system and are accepted quickly; however,
   at times GNATS runs behind and you may not get your email
   confirmation for 10 minutes or even longer. Please try to be
   patient.

   In addition, because GNATS receives all its input via email, it is
   absolutely vital that FreeBSD runs all its submissions through
   spam filters. If you do not get a response within an hour or two,
   you may have fallen afoul of them; if so, please contact the GNATS
   administrators at <bugmeister@FreeBSD.org> and ask for help.

     Note: Among the anti-spam measures is one that weighs against
     many common abuses seen HTML-based email (although not
     necessarily the mere inclusion of HTML in a PR). We strongly
     recommend against the use of HTML-based email when sending PRs:
     not only is it more likely to fall afoul of the filters, it also
     tends to merely clutter up the database. Plain old email is
     strongly preferred.

   On rare occasions you will encounter a GNATS bug where a PR is
   accepted and assigned a tracking number but it does not show up on
   the list of PRs on any of the web query pages. What may have
   happened is that the database index has gotten out of
   synchronization with the database itself. The way that you can
   test whether this has happened is to pull up the view a single PR
   page and see whether the PR shows up. If it does, please notify
   the GNATS administrators at <bugmeister@FreeBSD.org>. Note that
   there is a cron job that periodically rebuilds the database, so
   unless you are in a hurry, no action needs to be taken.

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

7. Further Reading

   This is a list of resources relevant to the proper writing and
   processing of problem reports. It is by no means complete.

     * How to Report Bugs Effectively!X!Xan excellent essay by Simon
       G. Tatham on composing useful (non-FreeBSD-specific) problem
       reports.

     * Problem Report Handling Guidelines!X!Xvaluable insight into
       how problem reports are handled by the FreeBSD developers.

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

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