Timeline



04/29/14:

14:57 Changeset in rtems [0832ca7]4.115 by Ralf Kirchner <ralf.kirchner@…>
doc: Extend documentation for unlimited objects Mark POSIX Keys and POSIX Key Value Pairs as supported. Add list of unsupported object classes. Add hint to unified work areas. Add example.
14:09 Changeset in rtems [e239760]4.115 by Sebastian Huber <sebastian.huber@…>
score: SMP_FATAL_SCHEDULER_WITHOUT_PROCESSORS Avoid the SMP_FATAL_SCHEDULER_WITHOUT_PROCESSORS fatal error and make it a run-time error in rtems_scheduler_ident() and _Scheduler_Get_by_id().
11:16 Changeset in rtems [dabf423]4.115 by Sebastian Huber <sebastian.huber@…>
score: Typo
07:39 Changeset in rtems [a16af0b3]4.115 by Sebastian Huber <sebastian.huber@…>
bsps/mips: Delete unused files The MIPS port defines CPU_SIMPLE_VECTORED_INTERRUPTS to FALSE.
06:53 Changeset in rtems [0b344f34]4.115 by Sebastian Huber <sebastian.huber@…>
bsps/m32r: Fix bsp_specs
06:43 Changeset in rtems [ef26454]4.115 by Sebastian Huber <sebastian.huber@…>
bsps/bfin: Fix bsp_specs
05:48 Changeset in rtems [99be750]4.115 by Sebastian Huber <sebastian.huber@…>
sapi: Report profiling only if enabled for tests

04/28/14:

23:18 Changeset in rtems-tools [4efea40]4.104.115 by Chris Johns <chrisj@…>
bsp: Clean up the BBxM BSP configuration.
23:10 Changeset in rtems-tools [bd0fbd6]4.104.115 by Chris Johns <chrisj@…>
bsp: Break on the terminate halt to get fatal handlers run.
14:55 Changeset in rtems [6741427a]4.115 by Sebastian Huber <sebastian.huber@…>
bsp/h8sim: Fix linker command file
08:51 Changeset in rtems-source-builder [527515c]4.104.114.95 by Chris Johns <chrisj@…>
sb:Use cc and c++ on FreeBSD 10 and higher.
07:56 Changeset in rtems [a336d51]4.115 by Sebastian Huber <sebastian.huber@…>
score: Avoid copy and paste
06:53 Changeset in rtems-source-builder [491d6b9]4.104.114.95 by Chris Johns <chrisj@…>
4.11/rtems: Sparc port change to gdb-7.7.
02:18 Changeset in rtems-source-builder [6fe63b3]4.104.114.95 by Chris Johns <chrisj@…>
config: Remove the POSIX thread model patch. Switch back the RTEMS thread model now it is fixed for SMP. This also works for some tests that where failing.
00:44 Projects/GSoC/OpenRISC created by Hesham
Created page with " [[TOC(...)]] Mentors: Ben Gras, Chris Johns, Christian Svensson Students: Hesham ALMatary Status: The project has just started. It's currently in design ..."

04/27/14:

17:35 Changeset in rtems-tools [803b63d]4.104.115 by Ben Gras <beng@…>
add --filter to specify the set of selected tests. . parameter is a glob . default is *.exe as it was . it is a convenient way to select a particular test to run over and over again while debugging it, without laboriously manipulating the .exe's that are present (i.e. moving/deleting them)
08:11 Changeset in rtems [eae0863]4.115 by Chris Johns <chrisj@…>
rtems: Fix sp2038 test. Avoid using newlib's gmtime_r call which fails with a max signed int. Add an RTEMS specific version for 1/1/1988 to 31/12/2100. Update sp2038 to test every day from 1/1/1988 to 31/12/2100. Only days need be tested as the code splits the seconds based on days.

04/26/14:

23:32 Changeset in rtems [0c5beb8e]4.115 by Chris Johns <chrisj@…>
rtems: Account for the network semaphore.
14:52 TBR/BSP/Beagleboard edited by Beng
(diff)
13:09 Changeset in rtems [03b7789]4.115 by Sebastian Huber <sebastian.huber@…>
score: Statically initialize _ISR_Vector_table
02:15 GSoC edited by André Marques
/* Students' Summer of Code Tracking Table */ (diff)

04/25/14:

17:56 Changeset in rtems [e306f3df]4.115 by Jennifer Averett <jennifer.averett@…>
sapi: Fix condef.h compile error for disabled network configuration. Added define for CONFIGURE_SEMAPHORES_FOR_NFS when networking disabled.
07:30 Changeset in rtems [5d2ae6e2]4.115 by Chris Johns <chrisj@…>
libfs/rfs: Fix the fstime failures for the RFS file system.
06:14 Changeset in rtems [c9a0a10]4.115 by Chris Johns <chrisj@…>
rtems: Account for file system semaphores. Add support to account for the semaphores used by the file systems.
05:46 TBR/BSP/Beagleboard edited by ChrisJohns
/* Ben and Chris's Big Beagleboard Adventure */ (diff)
05:30 TBR/BSP/Beagleboard edited by ChrisJohns
Add how to track rtems.master and Ben's WIP (diff)
04:24 Ticket #2178 (Classic API semaphore counts are wrong in confdefs.h) created by Chris Johns
The beagleboardmx BSP fails fsdosfsformat01 while it passes with the …

04/24/14:

15:53 TBR/BSP/Beagleboard edited by Beng
added test report (diff)
13:21 Changeset in rtems [f412e12]4.115 by Joel Sherrill <joel.sherrill@…>
mcf52235/configure.ac: Delete junk line
07:52 Changeset in rtems-tools [4e8f984]4.104.115 by Chris Johns <chrisj@…>
bsp: Add Beagleboard xM support.
02:39 TBR/BSP/Beagleboard edited by Beng
(diff)

04/23/14:

23:38 Changeset in rtems [053abcda]4.115 by Joel Sherrill <joel.sherrill@…>
multiple BSPs: Remove BSP_SMALL_MEMORY
23:20 TBR/BSP/Beagleboard edited by Beng
added info about rtems tester config and first test report (diff)
20:08 Changeset in rtems [82d137ae]4.115 by Jennifer Averett <jennifer.averett@…>
capture01: New non-interactive test for capture engine.
04:31 Changeset in rtems [b74c9cf]4.115 by Chris Johns <chrisj@…>
bootstrap: Sort the contents of the prinstall.am files. Sorting removed the variations across different host operating systems and file systems.
02:38 GSoC edited by Hesham
/* Students' Summer of Code Tracking Table */ (diff)

04/22/14:

18:10 Changeset in rtems [1450de0]4.115 by Joel Sherrill <joel.sherrill@…>
shsim: Correct linking for C++
18:08 Changeset in rtems [25c3208a]4.115 by Joel Sherrill <joel.sherrill@…>
gensh4: Correct linking for C++
18:07 Changeset in rtems [851e643]4.115 by Joel Sherrill <joel.sherrill@…>
gensh2: Correct linking for C++
18:07 Changeset in rtems [3191b42]4.115 by Joel Sherrill <joel.sherrill@…>
gensh1: Correct linking for C++
18:07 Changeset in rtems [b6a2e57b]4.115 by Joel Sherrill <joel.sherrill@…>
score603e: Add rtems_crti
18:06 Changeset in rtems [77737ad]4.115 by Joel Sherrill <joel.sherrill@…>
ss555: Add rtems_crti/n
15:44 Changeset in rtems [812c9d6]4.115 by Joel Sherrill <joel.sherrill@…>
sim68000/bsp_specs: Add crtbegin/end, crt[in]
15:36 Changeset in rtems [2f36f5a5]4.115 by Joel Sherrill <joel.sherrill@…>
mpc8260ads: Add rtems_crti/n
14:45 Changeset in rtems [8c18adde]4.115 by Joel Sherrill <joel.sherrill@…>
h8sim/bsp_specs: Add crtbegin/end, crt[in]
09:50 Changeset in rtems [aea93fb4]4.115 by Sebastian Huber <sebastian.huber@…>
sapi: Add profiling done message
09:46 Changeset in rtems [8365ad1]4.115 by Sebastian Huber <sebastian.huber@…>
sapi: Add arithmetic means to XML profiling report
08:40 Changeset in rtems [3fe1e43]4.115 by Sebastian Huber <sebastian.huber@…>
sparc: Document register g7 usage
08:15 Changeset in rtems [7c0bd74]4.115 by Sebastian Huber <sebastian.huber@…>
sparc: Add _CPU_Get_current_per_CPU_control() Use register g6 for the per-CPU control of the current processor. The register g6 is reserved for the operating system by the SPARC ABI. On Linux register g6 is used for a similar purpose with the same method since 1996. The register g6 must be initialized during system startup and then must remain unchanged. Since the per-CPU control is used in all critical sections of the operating system, this is a performance optimization for the operating system core procedures. An additional benefit is that the low-level context switch and interrupt processing code is now identical on non-SMP and SMP configurations.
08:10 Changeset in rtems [e5120a5]4.115 by Sebastian Huber <sebastian.huber@…>
score: Add _CPU_Get_current_per_CPU_control() Add optional method _CPU_Get_current_per_CPU_control() to obtain the per-CPU control of the current processor. This is optional. Not every CPU port needs this. It is only an optional optimization variant. In case this macro is undefined, the default implementation using the current processor index will be used.
07:45 Changeset in rtems [d60e760]4.115 by Sebastian Huber <sebastian.huber@…>
bsps: Fix TLS support in linker command files The TLS section symbols had wrong values in case of an empty TLS data section and a nonempty TLS BSS section.
07:32 Changeset in rtems [e2782684]4.115 by Sebastian Huber <sebastian.huber@…>
bsp/mbx8xx: Fix Makefile.am and bsp_specs
06:32 Changeset in rtems [e10574a]4.115 by Sebastian Huber <sebastian.huber@…>
bsps/powerpc: Fix linker command files
05:46 Changeset in rtems [b2ec2d15]4.115 by Sebastian Huber <sebastian.huber@…>
sparc: Optimize context switch The registers g2 through g4 are reserved for applications. GCC uses them as volatile registers by default. So they are treated like volatile registers in RTEMS as well.
05:46 Changeset in rtems [3380ee8]4.115 by Sebastian Huber <sebastian.huber@…>
score: Use common names for per-CPU variables Use "cpu" for an arbitrary Per_CPU_Control variable. Use "cpu_self" for the Per_CPU_Control of the current processor. Use "cpu_index" for an arbitrary processor index. Use "cpu_index_self" for the processor index of the current processor. Use "cpu_count" for the processor count obtained via _SMP_Get_processor_count(). Use "cpu_max" for the processor maximum obtained by rtems_configuration_get_maximum_processors().
05:46 Changeset in rtems [f17e171]4.115 by Sebastian Huber <sebastian.huber@…>
score: Fix warning
05:46 Changeset in rtems [861346d1]4.115 by Sebastian Huber <sebastian.huber@…>
score: Delete superfluous assignments These values are already zero initialized by C run-time setup.
05:46 Changeset in rtems [4c23fa4]4.115 by Sebastian Huber <sebastian.huber@…>
score: Simplify Giant lock
05:46 Changeset in rtems [774edf2c]4.115 by Sebastian Huber <sebastian.huber@…>
score: Use _Per_CPU_Get_snapshot()
04:43 Developer/OpenProjects edited by Hesham
/* Board Support Package (BSP) */ (diff)

04/21/14:

23:04 Developer/SMP edited by Mayes
/* Status of Effort */ (diff)
22:58 Developer/SMP edited by Mayes
/* Termios Framework */ (diff)
22:58 Developer/SMP edited by Mayes
/* Low-Level Broadcasts */ (diff)
22:57 Developer/SMP edited by Mayes
/* Barrier Synchronization */ (diff)
22:57 Developer/SMP edited by Mayes
/* Thread Delete/Restart? */ (diff)
22:56 Developer/SMP edited by Mayes
/* Post-Switch Actions */ (diff)
22:55 Developer/SMP edited by Mayes
/* Fine Grained Locking */ (diff)
22:55 Developer/SMP edited by Mayes
/* Multiprocessor Resource Sharing Protocol - MrsP */ (diff)
22:53 Developer/SMP edited by Mayes
/* Clustered Scheduling */ (diff)
22:52 Developer/SMP edited by Mayes
/* Interrupt Support */ (diff)
22:49 Developer/SMP edited by Mayes
/* Profiling */ (diff)
18:08 Changeset in rtems [1ed8762e]4.115 by Joel Sherrill <joel.sherrill@…>
mpci.c: Now compiles again
18:08 Changeset in rtems [d47904f]4.115 by Joel Sherrill <joel.sherrill@…>
niagara/Makefile.am: Fix rule for start.o
15:08 Ticket #2164 (RFS file system : error in rtems_rfs_bitmap_create_search in ...) closed by Gedare Bloom
fixed: http://git.rtems.org/rtems/commit/?id=a9619f3cb6b181f781aaf1f77931b32d0137145f
15:08 Ticket #2163 (RFS file system : error in rtems_rfs_group_bitmap_alloc group search ...) closed by Gedare Bloom
fixed: http://git.rtems.org/rtems/commit/?id=e60b7b1b4f19894dda0096b116bb0a21a5c51101
15:08 Ticket #2162 (RFS file system : statvfs will report 1 block free when all blocks are used) closed by Gedare Bloom
fixed: http://git.rtems.org/rtems/commit/?id=9b48dc67ed57f31c00b2e4351a30fac947472899
14:08 Changeset in rtems [a44fa5a7]4.115 by Joel Sherrill <joel.sherrill@…>
utf8proc01: Honor BSP_SMALL_MEMORY
14:08 Changeset in rtems [faa4e4c0]4.115 by Joel Sherrill <joel.sherrill@…>
flashdisk01: Honor BSP_SMALL_MEMORY
14:08 Changeset in rtems [2bea494]4.115 by Joel Sherrill <joel.sherrill@…>
fsdosfsname01: Honor BSP_SMALL_MEMORY
14:07 Changeset in rtems [97ae79d7]4.115 by Joel Sherrill <joel.sherrill@…>
fsdosfsformat01: Honor BSP_SMALL_MEMORY
14:07 Changeset in rtems [90bc4d03]4.115 by Joel Sherrill <joel.sherrill@…>
libcpu/sh: Build cache stubs so apps usign cache API link

04/18/14:

18:21 Developer/SMP edited by Mayes
/* Status of Effort */ (diff)
18:20 Developer/SMP edited by Mayes
/* Implementation Status */ (diff)
18:18 Developer/SMP edited by Mayes
/* Status of Effort*/ (diff)
18:04 Developer/SMP edited by Mayes
/* Implementation Status */ (diff)
16:05 Changeset in rtems [614fefe]4.115 by Joel Sherrill <joel.sherrill@…>
dummy_printk_support.c: Comment clean up
15:52 Changeset in rtems [a531683]4.115 by Joel Sherrill <joel.sherrill@…>
shsim: Add printk() support and move all code to console subdirectory
00:30 Developer/SMP edited by Mayes
(diff)

04/17/14:

19:56 Developer/SMP edited by JoelSherrill
Update affinity status (diff)
18:48 Developer/OpenProjects edited by JoelSherrill
Add ESA SOCIS 2014 info (diff)
18:41 Developer/OpenProjects edited by JoelSherrill
(diff)
18:09 Developer/SMP edited by Sh
/* SMP Locks */ (diff)
09:27 Changeset in rtems [d98eea0]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Cleanup L2 cache handling
09:22 Changeset in rtems [127634c]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Correct L2 cache enable method
09:19 Changeset in rtems [62fa1ea]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Add cache size methods Add new methods which deliver the cache sizes of for supported cache levels.
09:11 Changeset in rtems [1c62f74d]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Add L2 cache locking This level 2 cache is a shared data and instruction cache and thus needs locking.
09:03 Changeset in rtems [bebcfa57]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Remove unused cache store methods
08:59 Changeset in rtems [db5a84d]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Correct cache misalignment handling Correct misalignment handling and prepare for locking.
08:37 Changeset in rtems [92e2757]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Correct L2 cache flushing Correct misalignment handling and prepare for locking.
08:30 Changeset in rtems [cbd9e63]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Remove arm erratum 764369 from L2 cache Arm erratum 764369 only applies to the level 1 cache.
07:45 Changeset in rtems-libbsd [7100108]4.1155-freebsd-126-freebsd-12freebsd-9.3 by Sebastian Huber <sebastian.huber@…>
Update due to workspace allocation changes
07:45 Changeset in rtems-libbsd [9219a29]4.1155-freebsd-126-freebsd-12freebsd-9.3 by Sebastian Huber <sebastian.huber@…>
Update due to shell API changes
07:45 Changeset in rtems-libbsd [a271e91]4.1155-freebsd-126-freebsd-12freebsd-9.3 by Sebastian Huber <sebastian.huber@…>
Update due to chain API changes
07:44 Changeset in rtems-libbsd [772eff7]4.1155-freebsd-126-freebsd-12freebsd-9.3 by Sebastian Huber <sebastian.huber@…>
Update due to CORE mutex API changes
07:43 Changeset in rtems [9ee2ec5]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Consistenly same handling for flushing It is importeant to consistently apply the same handling for flushing within level 2 and level 1 cache handling. In this case now both handling use clean and invalidate.
07:21 Changeset in rtems [924b47a]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Cleanup L1 cache
06:02 Changeset in rtems [0e98970]4.115 by Sebastian Huber <sebastian.huber@…>
sapi: Fix CONFIGURE_UNLIMITED_OBJECTS POSIX keys and key value pairs support now the unlimited option.
05:57 Changeset in rtems [320faf8e]4.115 by Sebastian Huber <sebastian.huber@…>
score: Clarify TLS support
05:42 Changeset in rtems [fab2f188]4.115 by Sebastian Huber <sebastian.huber@…>
doc: Setting Affinity to a Single Processor
05:39 TBR/BSP/Beagleboard edited by ChrisJohns
/* Building U-Boot */ (diff)
05:38 TBR/BSP/Beagleboard edited by ChrisJohns
/* JTAG */ (diff)
04:56 TBR/BSP/Beagleboard edited by Beng
added qemu trace method (diff)

04/16/14:

18:54 Changeset in rtems [d20b029]4.115 by Sebastian Huber <sebastian.huber@…>
doc: Add SMP glossary
18:54 Changeset in rtems [10e613ba]4.115 by Sebastian Huber <sebastian.huber@…>
doc: Typo
18:05 Changeset in rtems-source-builder [d812ad5]4.104.114.95 by Joel Sherrill <joel.sherrill@…>
4.11/rtems-m32c.bset: Enable building gcc again
14:42 Changeset in rtems [463de59]4.115 by Jennifer Averett <jennifer.averett@…>
capture: Fix capture engine to handle new extensions.
14:07 Changeset in rtems [e331e69]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: RTEMS_SMP to arm erratum 764369 detection Move the RTEMS_SMP conditional compilation to the detection method of arm erratum 764369
14:06 Changeset in rtems [f830029]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_task_set_scheduler()
14:04 Changeset in rtems [707b6172]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Erratum 764369 after enabling SCU Execute the SCU part of the workaround of arm erratum 764368 after the SCU was enabled.
14:02 Changeset in rtems [babb1a2c]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_task_get_scheduler()
13:59 Changeset in rtems [d1f2f22]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_scheduler_get_processor_set()
13:52 Changeset in rtems [89c1a21f]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_scheduler_ident()
13:39 Changeset in rtems [ed859d51]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_task_set_affinity()
13:34 Changeset in rtems [561c7b2]4.115 by Sebastian Huber <sebastian.huber@…>
rtems: Add const qualifier
13:25 Changeset in rtems [2be51cc]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_task_get_affinity()
13:17 Changeset in rtems [4a93980]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_get_current_processor()
13:10 Changeset in rtems [6809383d]4.115 by Sebastian Huber <sebastian.huber@…>
doc: rtems_get_processor_count()
12:51 Developer/SMP edited by Sh
/* Clustered Scheduling */ (diff)
12:27 Changeset in rtems [d9e7d1e]4.115 by Ralf Kirchner <ralf.kirchner@…>
bsp/arm: Correct detection of arm erratum 764368
12:22 Changeset in rtems [a38d4a37]4.115 by Ralf Kirchner <ralf.kirchner@…>
libchip: Correct error handling in dwmac driver By fault an rtems_status_code has been expected instead of an errno error number.
10:34 Changeset in rtems [b3613c3a]4.115 by Sebastian Huber <sebastian.huber@…>
smptests/smpload01: Reduce timeout value Use events instead of suspend/resume.
08:27 TBR/BSP/Beagleboard edited by ChrisJohns
/* Building U-Boot */ (diff)
08:23 TBR/BSP/Beagleboard edited by ChrisJohns
/* Debugging */ (diff)
07:36 TBR/BSP/Beagleboard edited by ChrisJohns
/* Building U-Boot */ (diff)
07:35 TBR/BSP/Beagleboard edited by ChrisJohns
/* References */ (diff)
07:35 TBR/BSP/Beagleboard edited by ChrisJohns
Add xM porting log (diff)
07:10 Changeset in rtems [2e06be4]4.115 by Sebastian Huber <sebastian.huber@…>
score: Documentation
06:26 Ticket #2177 (libtests/heapwalk fails with RTEMS_DEBUG enabled) created by Sebastian Huber
There are two options to fix this: 1. Fix the test so that it can …
04:03 Changeset in rtems-source-builder [9d61bc9]4.104.114.95 by Chris Johns <chrisj@…>
rtems/4.11: moxie switch to gdb-7.7. Remove the binutils patches as these have been merged upstream.
03:57 Changeset in rtems-source-builder [3c514b2]4.104.114.95 by Chris Johns <chrisj@…>
rtems/4.11: i386 switch to gdb-7.7.

04/15/14:

20:06 Developer/SMP edited by Mayes
/* Status */ (diff)
19:54 Developer/SMP edited by Mayes
/* Status */ (diff)
19:54 Developer/SMP edited by Mayes
/* Status */ (diff)
16:38 Ticket #2176 (fishy behavior in termios tx task mode) created by Jeffrey Hill
I have a look around in the drivers in the various BSPs and I notice …
14:20 Changeset in rtems [33d0666]4.115 by Sebastian Huber <sebastian.huber@…>
score: Critical fix for SMP The _Scheduler_SMP_Allocate_processor() and _Thread_Dispatch() exchange information without locks. Make sure we use the right load/store ordering.
11:36 Changeset in rtems [b80f920]4.115 by Sebastian Huber <sebastian.huber@…>
bsp/qoriq: SMP support for IRQ support
11:34 Changeset in rtems [487b94e7]4.115 by Sebastian Huber <sebastian.huber@…>
bsps/powerpc: SMP support for SPR functions These registers are local to a processor, there is no need to use SMP locks here.
11:33 Changeset in rtems [598f39cd]4.115 by Sebastian Huber <sebastian.huber@…>
libchip: SMP support for NS16550
11:32 Changeset in rtems [2c1e7ff]4.115 by Sebastian Huber <sebastian.huber@…>
sapi: Error case for CONFIGURE_UNLIMITED_OBJECTS
08:48 Ticket #2112 (<sys/queue.h> is broken) closed by Sebastian Huber
fixed: Fixed with Newlib 2.1.0.
08:46 Ticket #1808 (PerCore SMP Scheduler) closed by Sebastian Huber
fixed: Clustered/partitioned scheduling is now supported: http://git.rtems.org/rtems/commit/?id=c5831a3f9af11228dbdaabaf01f69d37e55684ef
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