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</header>
<p>This document describes the changes made to the ERTS application.</p>

<section><title>Erts 5.9.2</title>

<section><title>Fixed Bugs and Malfunctions</title>
<list>
<item>
<p>
Fix erl_prim_loader errors in handling of primary
archive. The following errors have been corrected:</p>
<p>
<list> <item> If primary archive was named "xxx", then a
file in the same directory named "xxxyyy" would be
interpreted as a file named "yyy" inside the archive.
</item> <item> erl_prim_loader did not correctly create
and normalize absolute paths for primary archive and
files inside it, so unless given with exact same path
files inside the archive would not be found. E.g. if
escript was started as /full/path/to/xxx then
"./xxx/file" would not be found since erl_prim_loader
would try to match /full/path/to/xxx with
/full/path/to/./xxx. Same problem with ../. </item>
<item> Depending on how the primary archive was built,
erl_prim_loader:list_dir/1 would sometimes return an
empty string inside the file list. This was a virtual
element representing the top directory of the archive.
This has been removed. </item> </list></p>
<p>
Thanks to Tuncer Ayaz and Shunichi Shinohara for
reporting and co-authoring corrections.</p>
<p>
Own Id: OTP-10071</p>
</item>
<item>
<p>Fix: Add port-I/O statistics for active once and true
and not only active false.</p>
<p>
Own Id: OTP-10073</p>
</item>
<item>
<p>
The 64-bit windows installer did not look in the right
directories for 64-bit version of Microsoft Visual C++
2010 Redistibutable Package and hence took the wrong
decision about having to install the redistributable
package if the 32-bit version was installed but not the
64-bit and vice versa. This bug has now been fixed
Furthermore the sub-installer for the redistributable
package is now run in silent mode if the erlang installer
is.</p>
<p>
Own Id: OTP-10096</p>
</item>
<item>
<p>
epmd would fail to start automatically when starting a
distributed erlang node installed in a location with a
whitespace in the path.</p>
<p>
Own Id: OTP-10106</p>
</item>
<item>
<p>
A more or less harmless bug that sometimes caused memory
deallocations to be delayed longer than intended has been
fixed.</p>
<p>
Own Id: OTP-10116</p>
</item>
<item>
<p>
Fix bug causing emulator crash when running HiPE on ARM.
Bug has existed since R15B.</p>
<p>
Own Id: OTP-10137</p>
</item>
<item>
<p> A bug regarding spaces in C function prototypes has
been fixed. (Thanks to Richard O'Keefe.) </p>
<p>
Own Id: OTP-10138</p>
</item>
<item>
<p>
Corrected dtrace pid length in message related probes.
(Thanks to Zheng Siyao)</p>
<p>
Own Id: OTP-10142</p>
</item>
<item>
<p>
Correct formating in exit error messages</p>
<p>
Ensure displayed sizes are not negative. (Thanks to
Michael Santos)</p>
<p>
Own Id: OTP-10148</p>
</item>
<item>
<p>
fix escript/primary archive reloading</p>
<p>
If the mtime of an escript/primary archive file changes
after being added to the code path, correctly reload the
archive and update the cache. (Thanks to Tuncer Ayaz)</p>
<p>
Own Id: OTP-10151</p>
</item>
<item>
<p>
Doc fix: link from erlang:now/0 to os:timestamp/0</p>
<p>
Sometimes os:timestamp/0 is more appropriate than
erlang:now/0. The documentation for the former has a link
to the latter; this patch adds a link in the other
direction to make os:timestamp/0 more visible. Thanks to
Magnus Henoch</p>
<p>
Own Id: OTP-10180</p>
</item>
<item>
<p>
The caret in the werl window (on Windows) could appear at
the wrong place after regaining focus. This is now
corrected.</p>
<p>
Own Id: OTP-10181</p>
</item>
<item>
<p>
Fix bug that in some cases could cause corrupted binaries
in ETS tables with <c>compressed</c> option.</p>
<p>
Own Id: OTP-10182</p>
</item>
<item>
<p>
Fix use of "clever" mktime</p>
<p>
Commit 1eef765 introduced regression (conditional
_always_ evaluates to true) in which
erlang:localtime_to_universaltime/2 stopped working on
systems configured with timezone without DST (i.e. UTC)
on *BSD platforms: 1>
erlang:localtime_to_universaltime({{2012,1,1},{0,0,0}},
true). ** exception error: bad argument Thanks to Piotr
Sikora</p>
<p>
Own Id: OTP-10187</p>
</item>
<item>
<p>
Relocate bodies of DTrace probes to the statically-linked
VM.</p>
<p>
Due to various operating systems (in both the DTrace and
SystemTap worlds) not fully supporting DTrace probes (or
SystemTap-compatibility mode probes) in shared libraries,
we relocate those probes to the statically-linked virtual
machine. This could be seen as pollution of the pristine
VM by a (yet) experimental feature. However:</p>
<p>
1. This code can be eliminated completely by the C
preprocessor. 2. Leaving the probes in the dyntrace NIF
shared library simply does not work correctly on too many
platforms. *Many* thanks to Macneil Shonle at Basho for
assisting when my RSI-injured fingers gave out. (note:
Solaris 10 and FreeBSD 9.0-RELEASE can take a long time
to compile)</p>
<p>
Own Id: OTP-10189</p>
</item>
<item>
<p>
Fix bug in <c>ets:test_ms/2</c> that could cause emulator
crash when using <c>'$_'</c> in match spec.</p>
<p>
Own Id: OTP-10190</p>
</item>
<item>
<p>
Supplying a filename longer than the operating system
MAX_PATH to file:read_link/1 would cause a crash
(Segemntation fault/Critical Error) on all platforms.
This is now corrected.</p>
<p>
Own Id: OTP-10200</p>
</item>
<item>
<p>
If Perl was configured to interpret files as being
encoded in UTF-8, the build would crash in
<c>make_preload</c>. (Thanks to Aaron Harnly for noticing
this issue.)</p>
<p>
Own Id: OTP-10201</p>
</item>
<item>
<p>
Fix the erlc -MP flag</p>
<p>
Because of a copy-and-paste error in erlc.c, the -MP flag
had the same effect as -MG. As a workaround, you had to
pass +makedep_phony to enable the MP option. This patch
makes -MP work as intended.</p>
<p>
Own Id: OTP-10211</p>
</item>
<item>
<p>
Allow mixed IPv4 and IPv6 addresses to sctp_bindx</p>
<p>
Also allow mixed address families to bind, since the
first address on a multihomed sctp socket must be bound
with bind, while the rest are to be bound using
sctp_bindx. At least Linux supports adding address of
mixing families. Make inet_set_faddress function
available also when HAVE_SCTP is not defined, since we
use it to find an address for bind to be able to mix ipv4
and ipv6 addresses. Thanks to Tomas Abrahamsson</p>
<p>
Own Id: OTP-10217</p>
</item>
<item>
<p>
Fix support for leap seconds-aware timezones</p>
<p>
erlang:universaltime_to_localtime is leap seconds-aware
(since 2008), however erlang:localtime_to_universaltime
is not, which gives surprising results on systems
configured with leap seconds-aware timezones: 1>
erlang:universaltime_to_localtime({{2012,1,1},{0,0,0}}).
{{2012,1,1},{0,0,0}} 2>
erlang:localtime_to_universaltime({{2012,1,1},{0,0,0}}).
{{2012,1,1},{0,0,24}} and completely breaks
calendar:local_time_to_universal_time_dst: 3>
calendar:local_time_to_universal_time_dst({{2011,1,1},{0,0,0}}).
[] Thanks to Piotr Sikora</p>
<p>
Own Id: OTP-10227</p>
</item>
<item>
<p>
erlsrv: gracefully stop emulator on Windows shutdown</p>
<p>
Windows will send the SERVICE_CONTROL_SHUTDOWN event to
the service control handler when shutting down the
system. Instead of ignoring the event, erlsrv will now
invoke the stop action. Likewise, the Erlang emulator
(and it's po drivers) must not quit upon reception of the
CTRL_SHUTDOWN_EVENT event in th console control handler.
Thanks to Jan Kloetzke</p>
<p>
Own Id: OTP-10228</p>
</item>
<item>
<p>
Fix dtrace bug in file rename operation.</p>
<p>
Own Id: OTP-10234</p>
</item>
<item>
<p>
Fix bug in memory management of driver port data locks
(PDL). In some cases PDLs could be deallocated before
<c>ready_async</c> or <c>async_free</c> callback was
called.</p>
<p>
Own Id: OTP-10249</p>
</item>
</list>
</section>


<section><title>Improvements and New Features</title>
<list>
<item>
<p>Add port and suspend options to lock-counter
profiling. (Thanks to Rick Reed)</p>
<p>
Own Id: OTP-10051</p>
</item>
<item>
<p>
Latency when using the active_once option in gen_tcp
communication is reduced.</p>
<p>
Own Id: OTP-10055 Aux Id: sto139 </p>
</item>
<item>
<p>Remove bit8 option support from inet</p>
<p>
Own Id: OTP-10056</p>
</item>
<item>
<p>
The OS Pid of a port program is now available by calling
erlang:port_info(Port,os_pid), Thanks to Matthias Lang
for the original patch.</p>
<p>
Own Id: OTP-10057</p>
</item>
<item>
<p>
Fix openpty usage in run_erl. </p>
<p>
Reopening a slave file descriptor which was closed
earlier could lead to a misbehaving connection. This has
now been remedied.</p>
<p>
Own Id: OTP-10076</p>
</item>
<item>
<p>
Remove all code, documentation, options and diagnostic
functions which were related to the experimental hybrid
heap implementation.</p>
<p>
Own Id: OTP-10105</p>
</item>
<item>
<p>
Optimizations of memory deallocations.</p>
<p>
Own Id: OTP-10162 Aux Id: OTP-7775 </p>
</item>
<item>
<p>
Optimization of process locking.</p>
<p>
Own Id: OTP-10163</p>
</item>
<item>
<p>
Added a xcomp example file for powerpc-dso-linux-gnu</p>
<p>
Own Id: OTP-10198</p>
</item>
<item>
<p>
Detect when middle endian doubles are used by a platform
and account for it when decoding floats. (Thanks to Mike
Sperber)</p>
<p>
Own Id: OTP-10209</p>
</item>
</list>
</section>

</section>

<section><title>Erts 5.9.1.2</title>

<section><title>Fixed Bugs and Malfunctions</title>
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