1234370SjasoneFollowing are change highlights associated with official releases. Important 2234370Sjasonebug fixes are all mentioned, but internal enhancements are omitted here for 3234370Sjasonebrevity (even though they are more fun to write about). Much more detail can be 4234370Sjasonefound in the git revision history: 5234370Sjasone 6234370Sjasone http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git 7234370Sjasone git://canonware.com/jemalloc.git 8234370Sjasone 9251300Sjasone* 3.4.0 (June 2, 2013) 10251300Sjasone 11251300Sjasone This version is essentially a small bugfix release, but the addition of 12251300Sjasone aarch64 support requires that the minor version be incremented. 13251300Sjasone 14251300Sjasone Bug fixes: 15251300Sjasone - Fix race-triggered deadlocks in chunk_record(). These deadlocks were 16251300Sjasone typically triggered by multiple threads concurrently deallocating huge 17251300Sjasone objects. 18251300Sjasone 19251300Sjasone New features: 20251300Sjasone - Add support for the aarch64 architecture. 21251300Sjasone 22251300Sjasone* 3.3.1 (March 6, 2013) 23251300Sjasone 24251300Sjasone This version fixes bugs that are typically encountered only when utilizing 25251300Sjasone custom run-time options. 26251300Sjasone 27251300Sjasone Bug fixes: 28251300Sjasone - Fix a locking order bug that could cause deadlock during fork if heap 29251300Sjasone profiling were enabled. 30251300Sjasone - Fix a chunk recycling bug that could cause the allocator to lose track of 31251300Sjasone whether a chunk was zeroed. On FreeBSD, NetBSD, and OS X, it could cause 32251300Sjasone corruption if allocating via sbrk(2) (unlikely unless running with the 33251300Sjasone "dss:primary" option specified). This was completely harmless on Linux 34251300Sjasone unless using mlockall(2) (and unlikely even then, unless the 35251300Sjasone --disable-munmap configure option or the "dss:primary" option was 36251300Sjasone specified). This regression was introduced in 3.1.0 by the 37251300Sjasone mlockall(2)/madvise(2) interaction fix. 38251300Sjasone - Fix TLS-related memory corruption that could occur during thread exit if the 39251300Sjasone thread never allocated memory. Only the quarantine and prof facilities were 40251300Sjasone susceptible. 41251300Sjasone - Fix two quarantine bugs: 42251300Sjasone + Internal reallocation of the quarantined object array leaked the old 43251300Sjasone array. 44251300Sjasone + Reallocation failure for internal reallocation of the quarantined object 45251300Sjasone array (very unlikely) resulted in memory corruption. 46251300Sjasone - Fix Valgrind integration to annotate all internally allocated memory in a 47251300Sjasone way that keeps Valgrind happy about internal data structure access. 48251300Sjasone - Fix building for s390 systems. 49251300Sjasone 50245868Sjasone* 3.3.0 (January 23, 2013) 51245868Sjasone 52245868Sjasone This version includes a few minor performance improvements in addition to the 53245868Sjasone listed new features and bug fixes. 54245868Sjasone 55245868Sjasone New features: 56245868Sjasone - Add clipping support to lg_chunk option processing. 57245868Sjasone - Add the --enable-ivsalloc option. 58245868Sjasone - Add the --without-export option. 59245868Sjasone - Add the --disable-zone-allocator option. 60245868Sjasone 61245868Sjasone Bug fixes: 62245868Sjasone - Fix "arenas.extend" mallctl to output the number of arenas. 63245868Sjasone - Fix chunk_recycyle() to unconditionally inform Valgrind that returned memory 64245868Sjasone is undefined. 65245868Sjasone - Fix build break on FreeBSD related to alloca.h. 66245868Sjasone 67242844Sjasone* 3.2.0 (November 9, 2012) 68242844Sjasone 69242844Sjasone In addition to a couple of bug fixes, this version modifies page run 70242844Sjasone allocation and dirty page purging algorithms in order to better control 71242844Sjasone page-level virtual memory fragmentation. 72242844Sjasone 73242844Sjasone Incompatible changes: 74242844Sjasone - Change the "opt.lg_dirty_mult" default from 5 to 3 (32:1 to 8:1). 75242844Sjasone 76242844Sjasone Bug fixes: 77242844Sjasone - Fix dss/mmap allocation precedence code to use recyclable mmap memory only 78242844Sjasone after primary dss allocation fails. 79242844Sjasone - Fix deadlock in the "arenas.purge" mallctl. This regression was introduced 80242844Sjasone in 3.1.0 by the addition of the "arena.<i>.purge" mallctl. 81242844Sjasone 82242844Sjasone* 3.1.0 (October 16, 2012) 83242844Sjasone 84242844Sjasone New features: 85242844Sjasone - Auto-detect whether running inside Valgrind, thus removing the need to 86242844Sjasone manually specify MALLOC_CONF=valgrind:true. 87242844Sjasone - Add the "arenas.extend" mallctl, which allows applications to create 88242844Sjasone manually managed arenas. 89242844Sjasone - Add the ALLOCM_ARENA() flag for {,r,d}allocm(). 90242844Sjasone - Add the "opt.dss", "arena.<i>.dss", and "stats.arenas.<i>.dss" mallctls, 91242844Sjasone which provide control over dss/mmap precedence. 92242844Sjasone - Add the "arena.<i>.purge" mallctl, which obsoletes "arenas.purge". 93242844Sjasone - Define LG_QUANTUM for hppa. 94242844Sjasone 95242844Sjasone Incompatible changes: 96242844Sjasone - Disable tcache by default if running inside Valgrind, in order to avoid 97242844Sjasone making unallocated objects appear reachable to Valgrind. 98242844Sjasone - Drop const from malloc_usable_size() argument on Linux. 99242844Sjasone 100242844Sjasone Bug fixes: 101242844Sjasone - Fix heap profiling crash if sampled object is freed via realloc(p, 0). 102242844Sjasone - Remove const from __*_hook variable declarations, so that glibc can modify 103242844Sjasone them during process forking. 104242844Sjasone - Fix mlockall(2)/madvise(2) interaction. 105242844Sjasone - Fix fork(2)-related deadlocks. 106242844Sjasone - Fix error return value for "thread.tcache.enabled" mallctl. 107242844Sjasone 108235322Sjasone* 3.0.0 (May 11, 2012) 109234370Sjasone 110234370Sjasone Although this version adds some major new features, the primary focus is on 111234370Sjasone internal code cleanup that facilitates maintainability and portability, most 112234370Sjasone of which is not reflected in the ChangeLog. This is the first release to 113234370Sjasone incorporate substantial contributions from numerous other developers, and the 114234370Sjasone result is a more broadly useful allocator (see the git revision history for 115234370Sjasone contribution details). Note that the license has been unified, thanks to 116234370Sjasone Facebook granting a license under the same terms as the other copyright 117234370Sjasone holders (see COPYING). 118234370Sjasone 119234370Sjasone New features: 120234370Sjasone - Implement Valgrind support, redzones, and quarantine. 121235238Sjasone - Add support for additional platforms: 122234370Sjasone + FreeBSD 123234370Sjasone + Mac OS X Lion 124235238Sjasone + MinGW 125235322Sjasone + Windows (no support yet for replacing the system malloc) 126234370Sjasone - Add support for additional architectures: 127234370Sjasone + MIPS 128234370Sjasone + SH4 129234370Sjasone + Tilera 130234370Sjasone - Add support for cross compiling. 131234370Sjasone - Add nallocm(), which rounds a request size up to the nearest size class 132234370Sjasone without actually allocating. 133234370Sjasone - Implement aligned_alloc() (blame C11). 134234370Sjasone - Add the "thread.tcache.enabled" mallctl. 135234543Sjasone - Add the "opt.prof_final" mallctl. 136234543Sjasone - Update pprof (from gperftools 2.0). 137235322Sjasone - Add the --with-mangling option. 138235322Sjasone - Add the --disable-experimental option. 139235322Sjasone - Add the --disable-munmap option, and make it the default on Linux. 140235322Sjasone - Add the --enable-mremap option, which disables use of mremap(2) by default. 141234370Sjasone 142234370Sjasone Incompatible changes: 143234370Sjasone - Enable stats by default. 144234370Sjasone - Enable fill by default. 145234370Sjasone - Disable lazy locking by default. 146234370Sjasone - Rename the "tcache.flush" mallctl to "thread.tcache.flush". 147234370Sjasone - Rename the "arenas.pagesize" mallctl to "arenas.page". 148234543Sjasone - Change the "opt.lg_prof_sample" default from 0 to 19 (1 B to 512 KiB). 149234543Sjasone - Change the "opt.prof_accum" default from true to false. 150234370Sjasone 151234370Sjasone Removed features: 152234370Sjasone - Remove the swap feature, including the "config.swap", "swap.avail", 153234370Sjasone "swap.prezeroed", "swap.nfds", and "swap.fds" mallctls. 154234370Sjasone - Remove highruns statistics, including the 155234370Sjasone "stats.arenas.<i>.bins.<j>.highruns" and 156234370Sjasone "stats.arenas.<i>.lruns.<j>.highruns" mallctls. 157234370Sjasone - As part of small size class refactoring, remove the "opt.lg_[qc]space_max", 158234370Sjasone "arenas.cacheline", "arenas.subpage", "arenas.[tqcs]space_{min,max}", and 159234370Sjasone "arenas.[tqcs]bins" mallctls. 160234370Sjasone - Remove the "arenas.chunksize" mallctl. 161234370Sjasone - Remove the "opt.lg_prof_tcmax" option. 162234370Sjasone - Remove the "opt.lg_prof_bt_max" option. 163234370Sjasone - Remove the "opt.lg_tcache_gc_sweep" option. 164234370Sjasone - Remove the --disable-tiny option, including the "config.tiny" mallctl. 165234370Sjasone - Remove the --enable-dynamic-page-shift configure option. 166234370Sjasone - Remove the --enable-sysv configure option. 167234370Sjasone 168234370Sjasone Bug fixes: 169234370Sjasone - Fix a statistics-related bug in the "thread.arena" mallctl that could cause 170234370Sjasone invalid statistics and crashes. 171235238Sjasone - Work around TLS deallocation via free() on Linux. This bug could cause 172234370Sjasone write-after-free memory corruption. 173235238Sjasone - Fix a potential deadlock that could occur during interval- and 174235238Sjasone growth-triggered heap profile dumps. 175235322Sjasone - Fix large calloc() zeroing bugs due to dropping chunk map unzeroed flags. 176234569Sjasone - Fix chunk_alloc_dss() to stop claiming memory is zeroed. This bug could 177234569Sjasone cause memory corruption and crashes with --enable-dss specified. 178235238Sjasone - Fix fork-related bugs that could cause deadlock in children between fork 179235238Sjasone and exec. 180234370Sjasone - Fix malloc_stats_print() to honor 'b' and 'l' in the opts parameter. 181234370Sjasone - Fix realloc(p, 0) to act like free(p). 182234370Sjasone - Do not enforce minimum alignment in memalign(). 183234370Sjasone - Check for NULL pointer in malloc_usable_size(). 184235238Sjasone - Fix an off-by-one heap profile statistics bug that could be observed in 185235238Sjasone interval- and growth-triggered heap profiles. 186235238Sjasone - Fix the "epoch" mallctl to update cached stats even if the passed in epoch 187235238Sjasone is 0. 188234370Sjasone - Fix bin->runcur management to fix a layout policy bug. This bug did not 189234370Sjasone affect correctness. 190234370Sjasone - Fix a bug in choose_arena_hard() that potentially caused more arenas to be 191234370Sjasone initialized than necessary. 192234370Sjasone - Add missing "opt.lg_tcache_max" mallctl implementation. 193234370Sjasone - Use glibc allocator hooks to make mixed allocator usage less likely. 194234370Sjasone - Fix build issues for --disable-tcache. 195234543Sjasone - Don't mangle pthread_create() when --with-private-namespace is specified. 196234370Sjasone 197234370Sjasone* 2.2.5 (November 14, 2011) 198234370Sjasone 199234370Sjasone Bug fixes: 200234370Sjasone - Fix huge_ralloc() race when using mremap(2). This is a serious bug that 201234370Sjasone could cause memory corruption and/or crashes. 202234370Sjasone - Fix huge_ralloc() to maintain chunk statistics. 203234370Sjasone - Fix malloc_stats_print(..., "a") output. 204234370Sjasone 205234370Sjasone* 2.2.4 (November 5, 2011) 206234370Sjasone 207234370Sjasone Bug fixes: 208234370Sjasone - Initialize arenas_tsd before using it. This bug existed for 2.2.[0-3], as 209234370Sjasone well as for --disable-tls builds in earlier releases. 210234370Sjasone - Do not assume a 4 KiB page size in test/rallocm.c. 211234370Sjasone 212234370Sjasone* 2.2.3 (August 31, 2011) 213234370Sjasone 214234370Sjasone This version fixes numerous bugs related to heap profiling. 215234370Sjasone 216234370Sjasone Bug fixes: 217234370Sjasone - Fix a prof-related race condition. This bug could cause memory corruption, 218234370Sjasone but only occurred in non-default configurations (prof_accum:false). 219234370Sjasone - Fix off-by-one backtracing issues (make sure that prof_alloc_prep() is 220234370Sjasone excluded from backtraces). 221234370Sjasone - Fix a prof-related bug in realloc() (only triggered by OOM errors). 222234370Sjasone - Fix prof-related bugs in allocm() and rallocm(). 223234370Sjasone - Fix prof_tdata_cleanup() for --disable-tls builds. 224234370Sjasone - Fix a relative include path, to fix objdir builds. 225234370Sjasone 226234370Sjasone* 2.2.2 (July 30, 2011) 227234370Sjasone 228234370Sjasone Bug fixes: 229234370Sjasone - Fix a build error for --disable-tcache. 230234370Sjasone - Fix assertions in arena_purge() (for real this time). 231234370Sjasone - Add the --with-private-namespace option. This is a workaround for symbol 232234370Sjasone conflicts that can inadvertently arise when using static libraries. 233234370Sjasone 234234370Sjasone* 2.2.1 (March 30, 2011) 235234370Sjasone 236234370Sjasone Bug fixes: 237234370Sjasone - Implement atomic operations for x86/x64. This fixes compilation failures 238234370Sjasone for versions of gcc that are still in wide use. 239234370Sjasone - Fix an assertion in arena_purge(). 240234370Sjasone 241234370Sjasone* 2.2.0 (March 22, 2011) 242234370Sjasone 243234370Sjasone This version incorporates several improvements to algorithms and data 244234370Sjasone structures that tend to reduce fragmentation and increase speed. 245234370Sjasone 246234370Sjasone New features: 247234370Sjasone - Add the "stats.cactive" mallctl. 248234370Sjasone - Update pprof (from google-perftools 1.7). 249234370Sjasone - Improve backtracing-related configuration logic, and add the 250234370Sjasone --disable-prof-libgcc option. 251234370Sjasone 252234370Sjasone Bug fixes: 253234370Sjasone - Change default symbol visibility from "internal", to "hidden", which 254234370Sjasone decreases the overhead of library-internal function calls. 255234370Sjasone - Fix symbol visibility so that it is also set on OS X. 256234370Sjasone - Fix a build dependency regression caused by the introduction of the .pic.o 257234370Sjasone suffix for PIC object files. 258234370Sjasone - Add missing checks for mutex initialization failures. 259234370Sjasone - Don't use libgcc-based backtracing except on x64, where it is known to work. 260234370Sjasone - Fix deadlocks on OS X that were due to memory allocation in 261234370Sjasone pthread_mutex_lock(). 262234370Sjasone - Heap profiling-specific fixes: 263234370Sjasone + Fix memory corruption due to integer overflow in small region index 264234370Sjasone computation, when using a small enough sample interval that profiling 265234370Sjasone context pointers are stored in small run headers. 266234370Sjasone + Fix a bootstrap ordering bug that only occurred with TLS disabled. 267234370Sjasone + Fix a rallocm() rsize bug. 268234370Sjasone + Fix error detection bugs for aligned memory allocation. 269234370Sjasone 270234370Sjasone* 2.1.3 (March 14, 2011) 271234370Sjasone 272234370Sjasone Bug fixes: 273234370Sjasone - Fix a cpp logic regression (due to the "thread.{de,}allocatedp" mallctl fix 274234370Sjasone for OS X in 2.1.2). 275234370Sjasone - Fix a "thread.arena" mallctl bug. 276234370Sjasone - Fix a thread cache stats merging bug. 277234370Sjasone 278234370Sjasone* 2.1.2 (March 2, 2011) 279234370Sjasone 280234370Sjasone Bug fixes: 281234370Sjasone - Fix "thread.{de,}allocatedp" mallctl for OS X. 282234370Sjasone - Add missing jemalloc.a to build system. 283234370Sjasone 284234370Sjasone* 2.1.1 (January 31, 2011) 285234370Sjasone 286234370Sjasone Bug fixes: 287234370Sjasone - Fix aligned huge reallocation (affected allocm()). 288234370Sjasone - Fix the ALLOCM_LG_ALIGN macro definition. 289234370Sjasone - Fix a heap dumping deadlock. 290234370Sjasone - Fix a "thread.arena" mallctl bug. 291234370Sjasone 292234370Sjasone* 2.1.0 (December 3, 2010) 293234370Sjasone 294234370Sjasone This version incorporates some optimizations that can't quite be considered 295234370Sjasone bug fixes. 296234370Sjasone 297234370Sjasone New features: 298234370Sjasone - Use Linux's mremap(2) for huge object reallocation when possible. 299234370Sjasone - Avoid locking in mallctl*() when possible. 300234370Sjasone - Add the "thread.[de]allocatedp" mallctl's. 301234370Sjasone - Convert the manual page source from roff to DocBook, and generate both roff 302234370Sjasone and HTML manuals. 303234370Sjasone 304234370Sjasone Bug fixes: 305234370Sjasone - Fix a crash due to incorrect bootstrap ordering. This only impacted 306234370Sjasone --enable-debug --enable-dss configurations. 307234370Sjasone - Fix a minor statistics bug for mallctl("swap.avail", ...). 308234370Sjasone 309234370Sjasone* 2.0.1 (October 29, 2010) 310234370Sjasone 311234370Sjasone Bug fixes: 312234370Sjasone - Fix a race condition in heap profiling that could cause undefined behavior 313234370Sjasone if "opt.prof_accum" were disabled. 314234370Sjasone - Add missing mutex unlocks for some OOM error paths in the heap profiling 315234370Sjasone code. 316234370Sjasone - Fix a compilation error for non-C99 builds. 317234370Sjasone 318234370Sjasone* 2.0.0 (October 24, 2010) 319234370Sjasone 320234370Sjasone This version focuses on the experimental *allocm() API, and on improved 321234370Sjasone run-time configuration/introspection. Nonetheless, numerous performance 322234370Sjasone improvements are also included. 323234370Sjasone 324234370Sjasone New features: 325234370Sjasone - Implement the experimental {,r,s,d}allocm() API, which provides a superset 326234370Sjasone of the functionality available via malloc(), calloc(), posix_memalign(), 327234370Sjasone realloc(), malloc_usable_size(), and free(). These functions can be used to 328234370Sjasone allocate/reallocate aligned zeroed memory, ask for optional extra memory 329234370Sjasone during reallocation, prevent object movement during reallocation, etc. 330234370Sjasone - Replace JEMALLOC_OPTIONS/JEMALLOC_PROF_PREFIX with MALLOC_CONF, which is 331234370Sjasone more human-readable, and more flexible. For example: 332234370Sjasone JEMALLOC_OPTIONS=AJP 333234370Sjasone is now: 334234370Sjasone MALLOC_CONF=abort:true,fill:true,stats_print:true 335234370Sjasone - Port to Apple OS X. Sponsored by Mozilla. 336234370Sjasone - Make it possible for the application to control thread-->arena mappings via 337234370Sjasone the "thread.arena" mallctl. 338234370Sjasone - Add compile-time support for all TLS-related functionality via pthreads TSD. 339234370Sjasone This is mainly of interest for OS X, which does not support TLS, but has a 340234370Sjasone TSD implementation with similar performance. 341234370Sjasone - Override memalign() and valloc() if they are provided by the system. 342234370Sjasone - Add the "arenas.purge" mallctl, which can be used to synchronously purge all 343234370Sjasone dirty unused pages. 344234370Sjasone - Make cumulative heap profiling data optional, so that it is possible to 345234370Sjasone limit the amount of memory consumed by heap profiling data structures. 346234370Sjasone - Add per thread allocation counters that can be accessed via the 347234370Sjasone "thread.allocated" and "thread.deallocated" mallctls. 348234370Sjasone 349234370Sjasone Incompatible changes: 350234370Sjasone - Remove JEMALLOC_OPTIONS and malloc_options (see MALLOC_CONF above). 351234370Sjasone - Increase default backtrace depth from 4 to 128 for heap profiling. 352234370Sjasone - Disable interval-based profile dumps by default. 353234370Sjasone 354234370Sjasone Bug fixes: 355234370Sjasone - Remove bad assertions in fork handler functions. These assertions could 356234370Sjasone cause aborts for some combinations of configure settings. 357234370Sjasone - Fix strerror_r() usage to deal with non-standard semantics in GNU libc. 358234370Sjasone - Fix leak context reporting. This bug tended to cause the number of contexts 359234370Sjasone to be underreported (though the reported number of objects and bytes were 360234370Sjasone correct). 361234370Sjasone - Fix a realloc() bug for large in-place growing reallocation. This bug could 362234370Sjasone cause memory corruption, but it was hard to trigger. 363234370Sjasone - Fix an allocation bug for small allocations that could be triggered if 364234370Sjasone multiple threads raced to create a new run of backing pages. 365234370Sjasone - Enhance the heap profiler to trigger samples based on usable size, rather 366234370Sjasone than request size. 367234370Sjasone - Fix a heap profiling bug due to sometimes losing track of requested object 368234370Sjasone size for sampled objects. 369234370Sjasone 370234370Sjasone* 1.0.3 (August 12, 2010) 371234370Sjasone 372234370Sjasone Bug fixes: 373234370Sjasone - Fix the libunwind-based implementation of stack backtracing (used for heap 374234370Sjasone profiling). This bug could cause zero-length backtraces to be reported. 375234370Sjasone - Add a missing mutex unlock in library initialization code. If multiple 376234370Sjasone threads raced to initialize malloc, some of them could end up permanently 377234370Sjasone blocked. 378234370Sjasone 379234370Sjasone* 1.0.2 (May 11, 2010) 380234370Sjasone 381234370Sjasone Bug fixes: 382234370Sjasone - Fix junk filling of large objects, which could cause memory corruption. 383234370Sjasone - Add MAP_NORESERVE support for chunk mapping, because otherwise virtual 384234370Sjasone memory limits could cause swap file configuration to fail. Contributed by 385234370Sjasone Jordan DeLong. 386234370Sjasone 387234370Sjasone* 1.0.1 (April 14, 2010) 388234370Sjasone 389234370Sjasone Bug fixes: 390234370Sjasone - Fix compilation when --enable-fill is specified. 391234370Sjasone - Fix threads-related profiling bugs that affected accuracy and caused memory 392234370Sjasone to be leaked during thread exit. 393234370Sjasone - Fix dirty page purging race conditions that could cause crashes. 394234370Sjasone - Fix crash in tcache flushing code during thread destruction. 395234370Sjasone 396234370Sjasone* 1.0.0 (April 11, 2010) 397234370Sjasone 398234370Sjasone This release focuses on speed and run-time introspection. Numerous 399234370Sjasone algorithmic improvements make this release substantially faster than its 400234370Sjasone predecessors. 401234370Sjasone 402234370Sjasone New features: 403234370Sjasone - Implement autoconf-based configuration system. 404234370Sjasone - Add mallctl*(), for the purposes of introspection and run-time 405234370Sjasone configuration. 406234370Sjasone - Make it possible for the application to manually flush a thread's cache, via 407234370Sjasone the "tcache.flush" mallctl. 408234370Sjasone - Base maximum dirty page count on proportion of active memory. 409234370Sjasone - Compute various addtional run-time statistics, including per size class 410234370Sjasone statistics for large objects. 411234370Sjasone - Expose malloc_stats_print(), which can be called repeatedly by the 412234370Sjasone application. 413234370Sjasone - Simplify the malloc_message() signature to only take one string argument, 414234370Sjasone and incorporate an opaque data pointer argument for use by the application 415234370Sjasone in combination with malloc_stats_print(). 416234370Sjasone - Add support for allocation backed by one or more swap files, and allow the 417234370Sjasone application to disable over-commit if swap files are in use. 418234370Sjasone - Implement allocation profiling and leak checking. 419234370Sjasone 420234370Sjasone Removed features: 421234370Sjasone - Remove the dynamic arena rebalancing code, since thread-specific caching 422234370Sjasone reduces its utility. 423234370Sjasone 424234370Sjasone Bug fixes: 425234370Sjasone - Modify chunk allocation to work when address space layout randomization 426234370Sjasone (ASLR) is in use. 427234370Sjasone - Fix thread cleanup bugs related to TLS destruction. 428234370Sjasone - Handle 0-size allocation requests in posix_memalign(). 429234370Sjasone - Fix a chunk leak. The leaked chunks were never touched, so this impacted 430234370Sjasone virtual memory usage, but not physical memory usage. 431234370Sjasone 432234370Sjasone* linux_2008082[78]a (August 27/28, 2008) 433234370Sjasone 434234370Sjasone These snapshot releases are the simple result of incorporating Linux-specific 435234370Sjasone support into the FreeBSD malloc sources. 436234370Sjasone 437234370Sjasone-------------------------------------------------------------------------------- 438234370Sjasonevim:filetype=text:textwidth=80 439