Commit Graph

196 Commits

Author SHA1 Message Date
Norman Feske
8bafb9d41b Adapt low-level components to new parent interface
This patch adjusts the components of the os repository as well as device
drivers to the new parent interface.

Issue #2120
2016-11-25 16:06:42 +01:00
Christian Helmuth
ff5d28822c bomb: limit generations on Linux
Limit the number of generations to 4 to prevent hitting the
socket-descriptor limit on Linux. Also, all possible configuration
parameters for bomb our now customizable in the run script and the
current config is logged by bomb master.
2016-11-25 15:27:29 +01:00
Norman Feske
82107bef9b base: buffer session args in 'Connection'
This patch is a preparation of the forthcoming async parent interface.
Note that this patch increases the size of connection objects.
Furthermore it adds a diagnostic message whenever a connection fails.

Issue #2166
2016-11-25 15:27:28 +01:00
Norman Feske
6dd695f788 update report_rom configs to fix warning
Several run scripts still used the outdated '<rom>' sub node in the
report_rom configuration.
2016-11-08 15:26:33 +01:00
Stefan Kalkowski
2a2e5c2df4 base-*: remove usage of printf
base generic code:
  * Remove unused verbosity code from mmio framework
  * Remove escape sequence end heuristic from LOG
  * replace Core_console with Core_log (no format specifiers)
  * move test/printf to test/log
  * remove `printf()` tests from the log test
  * check for exact match of the log test output
base-fiasco:
  * remove unused Fiasco::print_l4_threadid function
base-nova:
  * remove unused hexdump utility from core
base-hw:
  * remove unused Kernel::Thread::_print_* debug utilities
  * always print resource summary of core during startup
  * remove Kernel::Ipc_node::pd_label (not used anymore)
base*:
  * Turn `printf`,`PWRN`, etc. calls into their log equivalents

Ref #1987
Fix #2119
2016-10-21 12:39:36 +02:00
Stefan Kalkowski
f1535b2481 uart_drv: transition to new base API
* Unify uart drivers of different hardware drivers
* Remove deprecated IRQ activations
* Remove additional timer thread in Fiasco* KDB driver
* Move more generic UART definitions to specific supported
  platforms (e.g.: pl011 -> pbxa9)
* Move internal definitions from global to local headers

Ref #1987
Fix #2071
2016-08-29 17:29:35 +02:00
Emery Hemingway
482576fabb server/fs_log: improve client isolation
Use a seperate handle at each session.
Use SEEK_TAIL to append messages to files.
Increase packet buffer.
Refactor to component framework.

Fixes #1777
Issue #2060
2016-08-29 17:29:34 +02:00
Norman Feske
17c79a9e23 base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.

While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).

To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.

Issue #1987
2016-08-29 17:27:10 +02:00
Stefan Kalkowski
7f8f0f50ea block layer: transition to new API
Ref #1987
Fix #2058
2016-08-29 17:23:20 +02:00
Alexander Boettcher
1b895484d9 sel4: adjust qemu memory in same basic run scripts
Core on seL4 is configured to run on native hardware, so some static
allocators are bit over dimensioned. Some run scripts fail on qemu because
solely 64M are available in the system - adjust the affected scripts.

Issue #2044
2016-08-10 11:07:57 +02:00
Christian Helmuth
9839e833f2 Enable linux in input run script 2016-08-10 11:07:56 +02:00
Christian Helmuth
e95d7a8fa2 report_rom: fix warning message
Fix #2036
2016-07-20 13:51:27 +02:00
Emery Hemingway
d0e7cc35fa Adjust run scripts for loss of ROM filename argument
Issue #1787
2016-07-11 13:31:36 +02:00
Emery Hemingway
51e8f05fb6 Ajdust run scenarios for strict policy matching
Issue #1901
2016-06-22 12:21:41 +02:00
Christian Helmuth
cf771c10d6 Improve tokenizing to support XML comments
The whole XML comment has to be parsed as one XML tag to support strange
but valid combinations like

  <!---->
  <!--invisible-tag></invisible-tag-->

Fixes #1424
2016-06-06 09:37:47 +02:00
Norman Feske
807be83b1b Remove inconsistent use of 'is_' prefix
Fixes #1963
2016-05-23 15:52:39 +02:00
Norman Feske
3bceefc9cf Omit superfluous use of "CAP"/"SIGNAL" services
The functionality of the former "CAP" and "SIGNAL" services is now
provided by core's "PD" service.
2016-05-09 13:24:51 +02:00
Norman Feske
511acad507 Consolidate RM service into PD session
This patch integrates three region maps into each PD session to
reduce the session overhead and to simplify the PD creation procedure.
Please refer to the issue cited below for an elaborative discussion.

Note the API change:

With this patch, the semantics of core's RM service have changed. Now,
the service is merely a tool for creating and destroying managed
dataspaces, which are rarely needed. Regular components no longer need a
RM session. For this reason, the corresponding argument for the
'Process' and 'Child' constructors has been removed.

The former interface of the 'Rm_session' is not named 'Region_map'. As a
minor refinement, the 'Fault_type' enum values are now part of the
'Region_map::State' struct.

Issue #1938
2016-05-09 13:10:51 +02:00
Martin Stein
ab9fe9cc6c tz_vmm usb_armory: update binary URIs
The binaries were moved to the genode.org webserver as free bandwidth of the
previous Github LFS was depleted.

Fixes #1902
2016-04-25 11:12:38 +02:00
Johannes Schlatow
0709340788 Component writing a ROM into a file-system session
Fixes #1917
2016-04-25 10:47:59 +02:00
Emery Hemingway
4a58154e07 server/vfs: refactor for client isolation
VFS handles are allocated from per-session heaps.

Fixes #1751
2016-04-25 10:47:53 +02:00
Christian Helmuth
02f84f98c3 Explicitly set Qemu disk-image format to raw
Prevents the annoying warning about

  WARNING: Image format was not specified for 'bin/test.img' and probing guessed raw.
           Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
           Specify the 'raw' format explicitly to remove the restrictions.
2016-04-11 11:51:44 +02:00
Norman Feske
cf6f3f46f8 Test for the XML parser
Issue #1424
2016-03-10 17:08:52 +01:00
Norman Feske
9a3185f8ed base-linux: remove chroot support
Fixes #1903
2016-03-08 17:00:54 +01:00
Josef Söntgen
6d1d8afa57 usb_block_drv: USB mass storage bulk-only driver
This driver uses the Usb session interface and provides a Block session
to its client. See _repos/os/src/drivers/usb_block/README' for more
information.

Fixes #1885.
2016-02-16 14:03:38 +01:00
Martin Stein
f9ccfe3a04 tz_vmm usb_armory: document guest login data
The login data is otherwise only indirectly documented through the command that configures it in the rootfs tutorial [1].

[1] https://github.com/inversepath/usbarmory/wiki/Preparing-a-bootable-microSD-image#root-file-system

Fixes #1856
2016-01-26 16:20:38 +01:00
Martin Stein
6deb80f66d ahci_bench: fix condition for test end
Fixes #1824
2015-12-17 10:41:09 +01:00
Christian Helmuth
14c8380507 xml_generator: support bool and integer types
The Xml_generator is extended by overloads for bool as well as signed
and unsigned int, long, and long long.

Fixes #1819
2015-12-17 10:38:19 +01:00
Emery Hemingway
6e9fa10e65 server/report_rom: partial ROM label matching
Fixes #1801
2015-12-17 10:38:18 +01:00
Christian Helmuth
e387d2098d demo: adapt nested nitpicker config 2015-12-10 13:16:27 +01:00
Martin Stein
01643ccd94 cpu_quota hw exynos5: raise error tolerance
From our observations we can tell that the error should not exceed 4%.
However, there is no reasonable explanation by now why the test results
are less stable on these platforms. We have tried several things that
did not lead to an explanation or improvement:

  * changing the timing parameters of the scheduler
  * switching off SMP
  * double-checking the speed of userland and kernel timers

Ref #1805
2015-12-10 13:16:26 +01:00
Martin Stein
227b539193 cpu_quota x86_64: fix RAM quota and stack size
The test threads previously used a stack size independent from the machine
word width. Qemu was previously configured to provide 64Mb of RAM which isn't
sufficient for x86_64.

Ref #1805
2015-12-10 13:16:26 +01:00
Martin Stein
a3a8978d77 cpu_quota zynq_qemu: raise error tolerance
On Qemu, the test results for Xilinx Zynq-7000 are less stable than usual.

Ref #1805
2015-12-10 13:16:26 +01:00
Martin Stein
6410bd7261 cpu_quota.run: more info and simpler calculations
Print result error and error tolerance per test result. Use TCL commands
'format' and 'abs'to simplify calculations in the conclusion part of the run
script.

Ref #1805
2015-12-10 13:16:26 +01:00
Emery Hemingway
d0ebdfba4b server/fs_log: merge labels using 'label_prefix'
Policies are no longer partially matched against 'label' attributes.
New test at run/fs_log.

Issue #1766
2015-11-29 18:17:09 +01:00
Johannes Schlatow
50c809dfe5 os: remove deprecated os/run/network_test_nic*
The network_test_nic tests seem to be outdated. They don't work anymore for
several reasons.

Ref #1667
2015-11-29 18:17:08 +01:00
Timo Wischer
9f4b77c5c2 nic: support Zynq-7000
Ref #1667
2015-11-29 18:17:07 +01:00
Emery Hemingway
20dc750d6a Update run scenarios for policy label matching
Issue #1766
2015-11-29 18:17:06 +01:00
Martin Stein
59d2a83f30 TZ VMM & USB Armory: Demo
* Provide paravirtualized block API for accessing the second partition
  of the block device that is provided by the ESDHC driver.

* Provide paravirtualized serial API for sending log-output over Genodes
  serial port.

* Use the latest Linux suggested in the USB Armory Wiki [1] when on USB Armory
  while still using the older vendor Linux when on i.MX53 QSB. I.e.,
  provide a device tree through RAM and a rootfs through the paravirtualized
  block device when on USB Armory while providing ATAGs and Initrd when on
  i.MX53 QSB.

* Switch on the LED on the USB Armory when the VMM catches a VM-exception
  and switch it off again when as soon as the exception is handled. This
  merely show-cases the ability to instrument the LED for such purposes. In an
  ideal world, the LED is switched on as long as we're on the "Secure Side"
  and switched off as long as we're not.

* For further information see repos/os/run/tz_vmm.run

[1] https://github.com/inversepath/usbarmory/wiki/Preparing-a-bootable-microSD-image

Fixes #1497
2015-11-29 18:17:04 +01:00
Alexander Boettcher
2b6795df78 ps2: support verbose config parameter
Fixes #7
2015-11-27 12:18:51 +01:00
Josef Söntgen
7a70833ba1 mixer: add reporting and config handling
Fixes #1770.
2015-11-18 12:22:07 +01:00
Norman Feske
7c968d4c60 nitpicker: externalize xray policy
This patch removes the policy for controlling the X-Ray mode from
nitpicker to the separate component os/app/xray_trigger.

Fixes #1690
2015-11-04 14:09:28 +01:00
Emery Hemingway
1b4f894e2d VFS stress test
Issue #1648
2015-11-04 14:09:24 +01:00
Norman Feske
59014a50f1 os: new clipboard component and test
Fixes #1712
2015-10-06 12:18:54 +02:00
Norman Feske
02d07655ce os: make internal report_rom classes reusable
This patch moves the formerly internal classes of the report-ROM service
to the public location os/include/report_rom/ so that they can be reused
by other components such as the upcoming clipboard.
2015-10-06 12:18:53 +02:00
Norman Feske
702646a4a3 os: new ROM filter component
Related to #1690
2015-10-06 12:18:53 +02:00
Stefan Kalkowski
ed52d5a211 Introduce 'spec' subdirectories to outline aspects
Instead of holding SPEC-variable dependent files and directories inline
within the repository structure, move them into 'spec' subdirectories
at the corresponding levels, e.g.:

  repos/base/include/spec
  repos/base/mk/spec
  repos/base/lib/mk/spec
  repos/base/src/core/spec
  ...

Moreover, this commit removes the 'platform' directories. That term was
used in an overloaded sense. All SPEC-relative 'platform' directories are
now named 'spec'. Other files, like for instance those related to the
kernel/architecture specific startup library, where moved from 'platform'
directories to explicit, more meaningful places like e.g.: 'src/lib/startup'.

Fix #1673
2015-09-16 13:58:50 +02:00
Josef Söntgen
7898113f99 os: add sporadic sound test
This scripts starts two Audio_out session clients. These clients
access the soundcard via the mixer. The first client simply streams
a sample file in a loop while the second client generates a click
sound when any key is pressed.

Issue #1666.
2015-09-09 15:14:29 +02:00
Reinier Millo Sánchez
750b10b957 gpio: examples for GPIO driver 2015-08-31 09:09:23 +02:00
Norman Feske
e304bd926e Framebuffer throughput test
Issue #1566
2015-08-31 09:09:22 +02:00
Christian Helmuth
e2f2ac567e report_rom: deny requests for existing reports
If a requested report already exists the request is denied with
Invalid_args.

Further, I dusted the report_rom test and added it to the
autopilot list.
2015-08-21 11:00:58 +02:00
Josef Söntgen
4992903233 Rename audio_out_drv to audio_drv
With the introducation of the Audio_in session interface it makes
sense to rename the current available audio drivers. At the moment
only the dde_bsd audio_drv supports Audio_out as well as Audio_in.
The Linux audio_drv only supports Audio_out (there is no demand for
Audio_in support currently) but is renamed nonetheless to make it
easiert to write generic run scripts.

Issue #1644.
2015-08-21 10:59:46 +02:00
Alexander Boettcher
4cf319a9d7 os: avoid blocking on resource request in bomb.run
that are caused by bomb clients.

Issue #1632
2015-07-21 09:36:46 +02:00
Martin Stein
eaf4150c7b cpu_quota.run: support X86
The timer driver on X86 needs CPU quota with highest priority as it
frequently has to interrupt the counters to update the PIT.
On ARM this makes no difference in the test results as ARM timer
drivers, once configured, can sleep until the end of the timeouts.
On X86 we raise the error tolerance to 2% (default 1%) to compensate
the error caused by the timer.

Fixes #1621
2015-07-21 09:28:25 +02:00
Martin Stein
53e742fb02 cpu_quota.run: don't get stuck on zero counters
The test previously complained about divide-by-zero if the counters were all
zero.

Fixes #1616
2015-07-21 09:28:25 +02:00
Martin Stein
413741e58c cpu_quota.run: print all errors
Printing all errors and the goal values instead of exiting at the first
error allows for faster analysis of problems with the CPU-quota
mechanism.

Ref #1616
2015-07-21 09:28:25 +02:00
Martin Stein
5189055396 cpu_quota.run: fix bug in error detection
The test always succeeded because I forgot to set the error tolerance from
my debugging value 1 back to the correct value 0.01 before commiting the
test.

Ref #1616
2015-07-21 09:28:25 +02:00
Alexander Boettcher
cb1e0711ec bomb.run: support configuration of many parameters
Adjust bomb to specify the various hard-coded parameters and set up bomb.run
this way that it manages at our test machine to succeed in the given time.

Issue #1615
2015-07-07 19:48:07 +02:00
Stefan Kalkowski
c951c30d8a base: extend weak pointer test (Ref #1607)
Add a test where a locked pointer shall be taken during object destruction.
Moreover, extend the run-script so it runs on different platforms with
"real" timers.
2015-07-07 19:48:06 +02:00
Norman Feske
ed88d3aa13 Rename "failsafe" test to "fault_detection"
The name "failsafe" will be used for the upcoming failsafe server
wrapper.

Issue #1592
2015-06-22 14:43:40 +02:00
Norman Feske
712875ade4 os: use the server API in server/nic_loopback
This patch also introduces a run script for testing the component.
2015-06-22 14:43:40 +02:00
Norman Feske
6f167b449c Let XML generator append a trailing newline
By appending a newline to the generated XML data, we prevent the output
from messing with the command prompt when using 'cat' on a shell.
Futhermore, when using line-buffered output, the trailing newline
ensures that the output gets gets properly flushed.
2015-06-22 14:43:35 +02:00
Alexander Boettcher
1f40d9de6a pci: convert to platform_drv
Fixes #1542
2015-06-22 14:43:34 +02:00
Alexander Boettcher
1c38d4903b x86: use report_rom for acpi and pci driver
Issue #1542
2015-06-09 11:00:12 +02:00
Christian Helmuth
4004a3a9ca cpu_quota: pre-define variables in run script
If a regexp does not match but the variable is used later, the script
exits with an error like

  can't read "slow_quota_sp": no such variable
2015-06-09 11:00:11 +02:00
Alexander Boettcher
e1896e3b44 run: add platform_drv include for usage by scripts
Related to #765 and used for issue #1542
2015-06-09 11:00:10 +02:00
Norman Feske
bf031b174a demo.run: start scout at startup
To be consistent with the documentation, we have to start scout instead
of launchpad right at the start of the default demo scenario.
2015-05-26 09:40:05 +02:00
Sebastian Sumpf
9d4f410988 test: block benchmarking 2015-05-20 17:52:58 +02:00
Sebastian Sumpf
ff12ea01d5 blk_cli: add support for test size
'test_size' can be set as parameter in <config> node.
2015-05-20 17:52:58 +02:00
Alexander Boettcher
df50d1b29d run: adjust autopilot run scripts to pci changes
Issue #1486
2015-05-06 10:55:19 +02:00
Alexander Boettcher
e527f6e5ac ps2: use irqs via device interface
Issue #1486 and #1471
2015-05-06 10:55:19 +02:00
Martin Stein
c9272937e7 CPU session: apply quota via relative weightings
Physical CPU quota was previously given to a thread on construction only
by directly specifying a percentage of the quota of the according CPU
session. Now, a new thread is given a weighting that can be any value.
The physical counter-value of such a weighting depends on the weightings
of the other threads at the CPU session. Thus, the physical quota of all
threads of a CPU session must be updated when a weighting is added or
removed. This is each time the session creates or destroys a thread.

This commit also adapts the "cpu_quota" test in base-hw accordingly.

Ref #1464
2015-05-06 10:55:16 +02:00
Norman Feske
8fd30b13ac Consider Raspberry Pi in sd_card.run
Issue #1475
2015-04-09 16:04:47 +02:00
Martin Stein
c78efd4428 odroid_xu: prevent tests with sd/platform/ahci/fb
Drivers like SD-Card, platform, AHCI, and framebuffer are specified as Exynos5
compliant. But they are at least not compliant with Odroid-XU although this is
Exynos5. Thus, prevent tests that rely on such drivers when building for
hw_odoid_xu. Furthermore, make previous Arndale regulator/consts.h,
uart_defs.h, and some Board_base enums available to all Exynos5 builds to
enable at least building the drivers.

Fixes #1419
2015-02-27 11:48:36 +01:00
Martin Stein
9737b5d966 tz_vmm: support USB-Armory board
For the USB-Armory, we use a newer version of Linux (3.18) as for the
i.MX53-QSB. The main difference is, that the newer Linux uses a DTB instead of
ATAGs.

Fixes #1422
2015-02-27 11:48:35 +01:00
Martin Stein
be392b3bf9 hw: support USB-Armory board
The USB Armory is almost the same as the i.MX53-QSB but it uses only
one of the two RAM banks available in i.MX53. Furthermore we use the USB
Armory only with Trustzone enabled.

Ref #1422
2015-02-27 11:48:35 +01:00
Stefan Kalkowski
c176fc24a1 tz_vmm: make script success detection more robust 2015-02-27 11:48:08 +01:00
Stefan Kalkowski
7582396e9c hw_arndale: enable ARM virtualization extensions
* enables world-switch using ARM virtualization extensions
* split TrustZone and virtualization extensions hardly from platforms,
  where it is not used
* extend 'Vm_session' interface to enable configuration of guest-physical memory
* introduce VM destruction syscall
* add virtual machine monitor for hw_arndale that emulates a simplified version
  of ARM's Versatile Express Cortex A15 board for a Linux guest OS

Fixes #1405
2015-02-27 11:48:05 +01:00
Alexander Boettcher
2e1686558c run: constrain physical memory for pci/acpi driver
Permit pci/acpi driver to constrain physical memory allocation to needs of
the driver it serves.

Fixes #1045
2015-02-16 13:40:38 +01:00
Stefan Kalkowski
b69deec067 autopilot: adapt runscripts to run new tool
Related to #1372.
2015-02-16 13:40:35 +01:00
Josef Söntgen
0a835e4ce9 os: structured timestamp in Rtc session
Instead of returning an uint64_t value, return a structured time stamp.
This change is only visible to components using Rtc_session directly.

Fixes #1381.
2015-02-16 13:40:34 +01:00
Josef Söntgen
88f62b0988 autopilot: adapt runscripts to new run tool
Related to #1372.
2015-01-26 12:28:41 +01:00
Christian Helmuth
febca1b827 rtc: pseudo driver for linux + server framework
The commit also includes a test program incl. run script.

Fixes #1344.
2015-01-26 12:28:40 +01:00
Christian Helmuth
59d26e040e ahci: enable benchmark on x86 2014-12-19 13:58:48 +01:00
Sebastian Sumpf
5a821d4c92 base: Genode's dynamic linker
Issue #1280
2014-11-12 14:44:15 +01:00
Christian Helmuth
2350eac251 xml_generator: timer not needed for test 2014-10-10 13:02:45 +02:00
Christian Helmuth
0b5f901e58 Log name of exiting child from Child::exit()
Fixes #1243.
2014-09-11 10:23:39 +02:00
Norman Feske
1cddf05070 demo.run: adapt nested nitpicker to config changes 2014-08-26 11:00:36 +02:00
Norman Feske
d3eac95ac5 Adapt run scripts to nitpicker config changes 2014-08-13 12:07:55 +02:00
Norman Feske
b5b1dd03bd nitpicker: Move status bar to separate program 2014-08-11 15:55:34 +02:00
Norman Feske
1745453315 nitpicker: Layers and client-side mouse cursor
This patch introduces a mandatory layer attribute to domains. The layer
ordering is superimposed on the stacking order of the views. The
top-most layer can be assigned to a pointer-managing client. An example
for such a pointer is located at os/src/app/pointer. It replaces the
formerly built-in nitpicker mouse cursor.

The new layering mechanism replaces the former "stay-top" session
argument. So the Nitpicker::Connection no longer takes the stay-top flag
as the first argument.
2014-08-11 15:55:33 +02:00
Norman Feske
295b4241aa nitpicker: Remove <global-keys> compound node 2014-08-11 15:55:32 +02:00
Norman Feske
dbebfd624e nitpicker: Domain configuration
This patch introduces the notion of a "domain" to the nitpicker
configuration concept. Session policies always refer to a domain where
multiple session policies can refer to the same domain. Thereby a domain
provides a way to express the grouping of sessions. This is useful for
applications that open multiple nitpicker sessions (such as Qt5 apps that
use one nitpicker session per window, menu, etc.). We want to assign all
those sessions to a single domain.

The configuration looks as follows:

<config>
  ...
  <domain name="default" color="#ffffff"/>
  <policy label="" domain="default"/>
  ...
</config>
2014-08-11 15:55:32 +02:00
Norman Feske
0be6817226 Add 'Weak_ptr' to the public Genode API
So far, the lifetime-management utilities 'Weak_ptr' and 'Locked_ptr'
had been preserved for core-internal use only. However, the utilities
are handy for many use cases outside of core where object lifetimes
must be managed. So we promote them to the public API.
2014-08-11 15:55:32 +02:00
Stefan Kalkowski
b93a58066f trustzone: automate run script for nightly tests
Ref #1182
2014-06-26 10:57:27 +02:00
Norman Feske
ca971bbfd8 Move repositories to 'repos/' subdirectory
This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue #1082
2014-05-14 16:08:00 +02:00