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NEWS
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Release 3.14.0 (9 October 2018)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.14.0 is a feature release with many improvements and the usual collection of
bug fixes.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,
X86/Solaris, AMD64/Solaris and AMD64/MacOSX 10.12. There is also preliminary
support for X86/macOS 10.13, AMD64/macOS 10.13.
* ==================== CORE CHANGES ===================
* The new option --keep-debuginfo=no|yes (default no) can be used to retain
debug info for unloaded code. This allows saved stack traces (e.g. for
memory leaks) to include file/line info for code that has been dlclose'd (or
similar). See the user manual for more information and known limitations.
* Ability to specify suppressions based on source file name and line number.
* Majorly overhauled register allocator. No end-user changes, but the JIT
generates code a bit more quickly now.
* ================== PLATFORM CHANGES =================
* Preliminary support for macOS 10.13 has been added.
* mips: support for MIPS32/MIPS64 Revision 6 has been added.
* mips: support for MIPS SIMD architecture (MSA) has been added.
* mips: support for MIPS N32 ABI has been added.
* s390: partial support for vector instructions (integer and string) has been
added.
* ==================== TOOL CHANGES ====================
* Helgrind: Addition of a flag
--delta-stacktrace=no|yes [yes on linux amd64/x86]
which specifies how full history stack traces should be computed.
Setting this to =yes can speed up Helgrind by 25% when using
--history-level=full.
* Memcheck: reduced false positive rate for optimised code created by Clang 6
/ LLVM 6 on x86, amd64 and arm64. In particular, Memcheck analyses code
blocks more carefully to determine where it can avoid expensive definedness
checks without loss of precision. This is controlled by the flag
--expensive-definedness-checks=no|auto|yes [auto].
* ==================== OTHER CHANGES ====================
* Valgrind is now buildable with link-time optimisation (LTO). A new
configure option --enable-lto=yes allows building Valgrind with LTO. If the
toolchain supports it, this produces a smaller/faster Valgrind (up to 10%).
Note that if you are doing Valgrind development, --enable-lto=yes massively
slows down the build process.
* ==================== FIXED BUGS ====================
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
79362 Debug info is lost for .so files when they are dlclose'd
208052 strlcpy error when n = 0
255603 exp-sgcheck Assertion '!already_present' failed
338252 building valgrind with -flto (link time optimisation) fails
345763 MIPS N32 ABI support
368913 WARNING: unhandled arm64-linux syscall: 117 (ptrace)
== 388664 unhandled arm64-linux syscall: 117 (ptrace)
372347 Replacement problem of the additional c++14/c++17 new/delete operators
373069 memcheck/tests/leak_cpp_interior fails with GCC 5.1+
376257 helgrind history full speed up using a cached stack
379373 Fix syscall param msg->desc.port.name points to uninitialised byte(s)
on macOS 10.12
379748 Fix missing pselect syscall (OS X 10.11)
379754 Fix missing syscall ulock_wait (OS X 10.12)
380397 s390x: __GI_strcspn() replacemenet needed
381162 possible array overrun in VEX register allocator
381272 ppc64 doesn't compile test_isa_2_06_partx.c without VSX support
381274 powerpc too chatty even with --sigill-diagnostics=no
381289 epoll_pwait can have a NULL sigmask
381553 VEX register allocator v3
381556 arm64: Handle feature registers access on 4.11 Linux kernel or later
381769 Use ucontext_t instead of struct ucontext
381805 arm32 needs ld.so index hardwire for new glibc security fixes
382256 gz compiler flag test doesn't work for gold
382407 vg_perf needs "--terse" command line option
382515 "Assertion 'di->have_dinfo' failed." on wine's dlls/mscoree/tests/[..]
382563 MIPS MSA ASE support
382998 xml-socket doesn't work
383275 massif: m_xarray.c:162 (ensureSpaceXA): Assertion '!xa->arr' failed
383723 Fix missing kevent_qos syscall (macOS 10.11)
== 385604 illegal hardware instruction (OpenCV cv::namedWindow)
384096 Mention AddrCheck at Memcheck's command line option [..]
384230 vex x86->IR: 0x67 0xE8 0xAB 0x68
== 384156 vex x86->IR: 0x67 0xE8 0x6B 0x6A
== 386115 vex x86->IR: 0x67 0xE8 0xD3 0x8B any program
== 388407 vex x86->IR: 0x67 0xE8 0xAB 0x29
== 394903 vex x86->IR: 0x67 0xE8 0x1B 0xDA
384337 performance improvements to VEX register allocator v2 and v3
384526 reduce number of spill insns generated by VEX register allocator v3
384584 Callee saved regs listed first for AMD64, X86, and PPC architectures
384631 Sanitise client args as printed with -v
384633 Add a simple progress-reporting facility
384987 VEX regalloc: allocate caller-save registers for short lived vregs
385055 PPC VEX temporary storage exhausted
385182 PPC64 is missing support for the DSCR
385183 PPC64, Add support for xscmpeqdp, xscmpgtdp, xscmpgedp, xsmincdp
385207 PPC64, generate_store_FPRF() generates too many Iops
385208 PPC64, xxperm instruction exhausts temporary memory
385210 PPC64, vpermr instruction could exhaust temporary memory
385279 unhandled syscall: mach:43 (mach_generate_activity_id)
== 395136 valgrind: m_syswrap/syswrap-main.c:438 (Bool eq_Syscall[..]
== 387045 Valgrind crashing on High Sierra when testing any newly [..]
385334 PPC64, fix vpermr, xxperm, xxpermr mask value.
385408 s390x: z13 vector "support" instructions not implemented
385409 s390x: z13 vector integer instructions not implemented
385410 s390x: z13 vector string instructions not implemented
385412 s390x: new non-vector z13 instructions not implemented
385868 glibc ld.so _dl_runtime_resolve_avx_slow conditional jump warning.
385912 none/tests/rlimit_nofile fails on newer glibc/kernel.
385939 Optionally exit on the first error
386318 valgrind.org/info/tools.html is missing SGCheck
386425 running valgrind + wine on armv7l gives illegal opcode
386397 PPC64, valgrind truncates powerpc timebase to 32-bits.
387410 MIPSr6 support
387664 Memcheck: make expensive-definedness-checks be the default
387712 s390x cgijnl reports Conditional jump depends on uninitialised value
387766 asm shifts cause false positive "Conditional jump or move depends
on uninitialised value"
387773 .gnu_debugaltlink paths resolve relative to .debug file, not symlink
388174 valgrind with Wine quits with "Assertion 'cfsi_fits' failed"
388786 Support bpf syscall in amd64 Linux
388862 Add replacements for wmemchr and wcsnlen on Linux
389065 valgrind meets gcc flag -Wlogical-op
389373 exp-sgcheck the 'impossible' happened as Ist_LoadG is not instrumented
390471 suppression by specification of source-file line number
390723 make xtree dump files world wide readable, similar to log files
391164 constraint bug in tests/ppc64/test_isa_2_07_part1.c for mtfprwa
391861 Massif Assertion 'n_ips >= 1 && n_ips <= VG_(clo_backtrace_size)'
392118 unhandled amd64-linux syscall: 332 (statx)
392449 callgrind not clearing the number of calls properly
393017 Add missing support for xsmaxcdp instruction, bug fixes for xsmincdp,
lxssp, stxssp and stxvl instructions.
393023 callgrind_control risks using the wrong vgdb
393062 build-id ELF phdrs read causes "debuginfo reader: ensure_valid failed"
393099 posix_memalign() invalid write if alignment == 0
393146 failing assert "is_DebugInfo_active(di)"
395709 PPC64 is missing support for the xvnegsp instruction
395682 Accept read-only PT_LOAD segments and .rodata by ld -z separate-code
== 384727
396475 valgrind OS-X build: config.h not found (out-of-tree macOS builds)
395991 arm-linux: wine's unit tests enter a signal delivery loop [..]
396839 s390x: Trap instructions not implemented
396887 arch_prctl should return EINVAL on unknown option
== 397286 crash before launching binary (Unsupported arch_prctl option)
== 397393 valgrind: the 'impossible' happened: (Archlinux)
== 397521 valgrind: the 'impossible' happened: Unsupported [..]
396906 compile tests failure on mips32-linux: broken inline asm in tests on
mips32-linux
397012 glibc ld.so uses arch_prctl on i386
397089 amd64: Incorrect decoding of three-register vmovss/vmovsd opcode 11h
397354 utimensat should ignore timespec tv_sec if tv_nsec is UTIME_NOW/OMIT
397424 glibc 2.27 and gdb_server tests
398028 Assertion `cfsi_fits` failing in simple C program
398066 s390x: cgijl dep1, 0 reports false unitialised values warning
n-i-bz Fix missing workq_ops operations (macOS)
n-i-bz fix bug in strspn replacement
n-i-bz Add support for the Linux BLKFLSBUF ioctl
n-i-bz Add support for the Linux BLKREPORTZONE and BLKRESETZONE ioctls
n-i-bz Fix possible stack trashing by semctl syscall wrapping
n-i-bz Add support for the Linux membarrier() system call
n-i-bz x86 front end: recognise and handle UD2 correctly
n-i-bz Signal delivery for x86-linux: ensure that the stack pointer is
correctly aligned before entering the handler.
(3.14.0.RC1: 30 September 2018, git c2aeea2d28acb0639bcc8cc1e4ab115067db1eae)
(3.14.0.RC2: 3 October 2018, git 3e214c4858a6fdd5697e767543a0c19e30505582)
(3.14.0: 9 October 2018, git 353a3587bb0e2757411f9138f5e936728ed6cc4f)
Release 3.13.0 (15 June 2017)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.13.0 is a feature release with many improvements and the usual collection of
bug fixes.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,
MIPS64/Linux, ARM/Android, ARM64/Android, MIPS32/Android, X86/Android,
X86/Solaris, AMD64/Solaris and AMD64/MacOSX 10.12.
* ==================== CORE CHANGES ===================
* The translation cache size has been increased to keep up with the demands of
large applications. The maximum number of sectors has increased from 24 to
48. The default number of sectors has increased from 16 to 32 on all
targets except Android, where the increase is from 6 to 12.
* The amount of memory that Valgrind can use has been increased from 64GB to
128GB. In particular this means your application can allocate up to about
60GB when running on Memcheck.
* Valgrind's default load address has been changed from 0x3800'0000 to
0x5800'0000, so as to make it possible to load larger executables. This
should make it possible to load executables of size at least 1200MB.
* A massive spaceleak caused by reading compressed debuginfo files has been
fixed. Valgrind should now be entirely usable with gcc-7.0 "-gz" created
debuginfo.
* The C++ demangler has been updated.
* Support for demangling Rust symbols has been added.
* A new representation of stack traces, the "XTree", has been added. An XTree
is a tree of stacktraces with data associated with the stacktraces. This is
used by various tools (Memcheck, Helgrind, Massif) to report on the heap
consumption of your program. Reporting is controlled by the new options
--xtree-memory=none|allocs|full and --xtree-memory-file=<file>.
A report can also be produced on demand using the gdbserver monitor command
'xtmemory [<filename>]>'. The XTree can be output in 2 formats: 'callgrind
format' and 'massif format. The existing visualisers for these formats (e.g.
callgrind_annotate, KCachegrind, ms_print) can be used to visualise and
analyse these reports.
Memcheck can also produce XTree leak reports using the Callgrind file
format. For more details, see the user manual.
* ================== PLATFORM CHANGES =================
* ppc64: support for ISA 3.0B and various fixes for existing 3.0 support
* amd64: fixes for JIT failure problems on long AVX2 code blocks
* amd64 and x86: support for CET prefixes has been added
* arm32: a few missing ARMv8 instructions have been implemented
* arm64, mips64, mips32: an alternative implementation of Load-Linked and
Store-Conditional instructions has been added. This is to deal with
processor implementations that implement the LL/SC specifications strictly
and as a result cause Valgrind to hang in certain situations. The
alternative implementation is automatically enabled at startup, as required.
You can use the option --sim-hints=fallback-llsc to force-enable it if you
want.
* Support for OSX 10.12 has been improved.
* On Linux, clone handling has been improved to honour CLONE_VFORK that
involves a child stack. Note however that CLONE_VFORK | CLONE_VM is handled
like CLONE_VFORK (by removing CLONE_VM), so applications that depend on
CLONE_VM exact semantics will (still) not work.
* The TileGX/Linux port has been removed because it appears to be both unused
and unsupported.
* ==================== TOOL CHANGES ====================
* Memcheck:
- Memcheck should give fewer false positives when running optimised
Clang/LLVM generated code.
- Support for --xtree-memory and 'xtmemory [<filename>]>'.
- New command line options --xtree-leak=no|yes and --xtree-leak-file=<file>
to produce the end of execution leak report in a xtree callgrind format
file.
- New option 'xtleak' in the memcheck leak_check monitor command, to produce
the leak report in an xtree file.
* Massif:
- Support for --xtree-memory and 'xtmemory [<filename>]>'.
- For some workloads (typically, for big applications), Massif memory
consumption and CPU consumption has decreased significantly.
* Helgrind:
- Support for --xtree-memory and 'xtmemory [<filename>]>'.
- addition of client request VALGRIND_HG_GNAT_DEPENDENT_MASTER_JOIN, useful
for Ada gnat compiled applications.
* ==================== OTHER CHANGES ====================
* For Valgrind developers: in an outer/inner setup, the outer Valgrind will
append the inner guest stacktrace to the inner host stacktrace. This helps
to investigate the errors reported by the outer, when they are caused by the
inner guest program (such as an inner regtest). See README_DEVELOPERS for
more info.
* To allow fast detection of callgrind files by desktop environments and file
managers, the format was extended to have an optional first line that
uniquely identifies the format ("# callgrind format"). Callgrind creates
this line now, as does the new xtree functionality.
* File name template arguments (such as --log-file, --xtree-memory-file, ...)
have a new %n format letter that is replaced by a sequence number.
* "--version -v" now shows the SVN revision numbers from which Valgrind was
built.
* ==================== FIXED BUGS ====================
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
162848 --log-file output isn't split when a program forks
340777 Illegal instruction on mips (ar71xx)
341481 MIPS64: Iop_CmpNE32 triggers false warning on MIPS64 platforms
342040 Valgrind mishandles clone with CLONE_VFORK | CLONE_VM that clones
to a different stack.
344139 x86 stack-seg overrides, needed by the Wine people
344524 store conditional of guest applications always fail - observed on
Octeon3(MIPS)
348616 Wine/valgrind: noted but unhandled ioctl 0x5390 [..] (DVD_READ_STRUCT)
352395 Please provide SVN revision info in --version -v
352767 Wine/valgrind: noted but unhandled ioctl 0x5307 [..] (CDROMSTOP)
356374 Assertion 'DRD_(g_threadinfo)[tid].pt_threadid !=
INVALID_POSIX_THREADID' failed
358213 helgrind/drd bar_bad testcase hangs or crashes with new glibc pthread
barrier implementation
358697 valgrind.h: Some code remains even when defining NVALGRIND
359202 Add musl libc configure/compile
360415 amd64 instructions ADCX and ADOX are not implemented in VEX
== 372828 (vex amd64->IR: 0x66 0xF 0x3A 0x62 0x4A 0x10)
360429 unhandled ioctl 0x530d with no size/direction hints (CDROMREADMODE1)
362223 assertion failed when .valgrindrc is a directory instead of a file
367543 bt/btc/btr/bts x86/x86_64 instructions are poorly-handled wrt flags
367942 Segfault vgPlain_do_sys_sigaction (m_signals.c:1138)
368507 can't malloc chunks larger than about 34GB
368529 Android arm target link error, missing atexit and pthread_atfork
368863 WARNING: unhandled arm64-linux syscall: 100 (get_robust_list)
368865 WARNING: unhandled arm64-linux syscall: 272 (kcmp)
368868 disInstr(arm64): unhandled instruction 0xD53BE000 = cntfrq_el0 (ARMv8)
368917 WARNING: unhandled arm64-linux syscall: 218 (request_key)
368918 WARNING: unhandled arm64-linux syscall: 127 (sched_rr_get_interval)
368922 WARNING: unhandled arm64-linux syscall: 161 (sethostname)
368924 WARNING: unhandled arm64-linux syscall: 84 (sync_file_range)
368925 WARNING: unhandled arm64-linux syscall: 130 (tkill)
368926 WARNING: unhandled arm64-linux syscall: 97 (unshare)
369459 valgrind on arm64 violates the ARMv8 spec (ldxr/stxr)
370028 Reduce the number of compiler warnings on MIPS platforms
370635 arm64 missing syscall getcpu
371225 Fix order of timer_{gettime,getoverrun,settime} syscalls on arm64
371227 Clean AArch64 syscall table
371412 Rename wrap_sys_shmat to sys_shmat like other wrappers
371471 Valgrind complains about non legit memory leaks on placement new (C++)
371491 handleAddrOverrides() is [incorrect] when ASO prefix is used
371503 disInstr(arm64): unhandled instruction 0xF89F0000
371869 support '%' in symbol Z-encoding
371916 execution tree xtree concept
372120 c++ demangler demangles symbols which are not c++
372185 Support of valgrind on ARMv8 with 32 bit executable
372188 vex amd64->IR: 0x66 0xF 0x3A 0x62 0x4A 0x10 0x10 0x48 (PCMPxSTRx $0x10)
372195 Power PC, xxsel instruction is not always recognized.
372504 Hanging on exit_group
372600 process loops forever when fatal signals are arriving quickly
372794 LibVEX (arm32 front end): 'Assertion szBlg2 <= 3' failed
373046 Stacks registered by core are never deregistered
373069 memcheck/tests/leak_cpp_interior fails with GCC 5.1+
373086 Implement additional Xen hypercalls
373192 Calling posix_spawn in glibc 2.24 completely broken
373488 Support for fanotify API on ARM64 architecture
== 368864 WARNING: unhandled arm64-linux syscall: 262 (fanotify_init)
373555 Rename BBPTR to GSPTR as it denotes guest state pointer only
373938 const IRExpr arguments for matchIRExpr()
374719 some spelling fixes
374963 increase valgrind's load address to prevent mmap failure
375514 valgrind_get_tls_addr() does not work in case of static TLS
375772 +1 error in get_elf_symbol_info() when computing value of 'hi' address
for ML_(find_rx_mapping)()
375806 Test helgrind/tests/tc22_exit_w_lock fails with glibc 2.24
375839 Temporary storage exhausted, with long sequence of vfmadd231ps insns
== 377159 "vex: the `impossible' happened" still present
== 375150 Assertion 'tres.status == VexTransOK' failed
== 378068 valgrind crashes on AVX2 function in FFmpeg
376142 Segfaults on MIPS Cavium Octeon boards
376279 disInstr(arm64): unhandled instruction 0xD50320FF
376455 Solaris: unhandled syscall lgrpsys(180)
376518 Solaris: unhandled fast trap getlgrp(6)
376611 ppc64 and arm64 don't know about prlimit64 syscall
376729 PPC64, remove R2 from the clobber list
== 371668
376956 syswrap of SNDDRV and DRM_IOCTL_VERSION causing some addresses
to be wrongly marked as addressable
377066 Some Valgrind unit tests fail to compile on Ubuntu 16.10 with
PIE enabled by default
377376 memcheck/tests/linux/getregset fails with glibc2.24
377427 PPC64, lxv instruction failing on odd destination register
377478 PPC64: ISA 3.0 setup fixes
377698 Missing memory check for futex() uaddr arg for FUTEX_WAKE
and FUTEX_WAKE_BITSET, check only 4 args for FUTEX_WAKE_BITSET,
and 2 args for FUTEX_TRYLOCK_PI
377717 Fix massive space leak when reading compressed debuginfo sections
377891 Update Xen 4.6 domctl wrappers
377930 fcntl syscall wrapper is missing flock structure check
378524 libvexmultiarch_test regression on s390x and ppc64
378535 Valgrind reports INTERNAL ERROR in execve syscall wrapper
378673 Update libiberty demangler
378931 Add ISA 3.0B additional isnstructions, add OV32, CA32 setting support
379039 syscall wrapper for prctl(PR_SET_NAME) must not check more than 16 bytes
379094 Valgrind reports INTERNAL ERROR in rt_sigsuspend syscall wrapper
379371 UNKNOWN task message [id 3444, to mach_task_self(), reply 0x603]
(task_register_dyld_image_infos)
379372 UNKNOWN task message [id 3447, to mach_task_self(), reply 0x603]
(task_register_dyld_shared_cache_image_info)
379390 unhandled syscall: mach:70 (host_create_mach_voucher_trap)
379473 MIPS: add support for rdhwr cycle counter register
379504 remove TileGX/Linux port
379525 Support more x86 nop opcodes
379838 disAMode(x86): not an addr!
379703 PC ISA 3.0 fixes: stxvx, stxv, xscmpexpdp instructions
379890 arm: unhandled instruction: 0xEBAD 0x1B05 (sub.w fp, sp, r5, lsl #4)
379895 clock_gettime does not execute POST syscall wrapper
379925 PPC64, mtffs does not set the FPCC and C bits in the FPSCR correctly
379966 WARNING: unhandled amd64-linux syscall: 313 (finit_module)
380200 xtree generated callgrind files refer to files without directory name
380202 Assertion failure for cache line size (cls == 64) on aarch64.
380397 s390x: __GI_strcspn() replacement needed
n-i-bz Fix pub_tool_basics.h build issue with g++ 4.4.7.
(3.13.0.RC1: 2 June 2017, vex r3386, valgrind r16434)
(3.13.0.RC2: 9 June 2017, vex r3389, valgrind r16443)
(3.13.0: 14 June 2017, vex r3396, valgrind r16446)
Release 3.12.0 (20 October 2016)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.12.0 is a feature release with many improvements and the usual
collection of bug fixes.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux,
ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux,
MIPS32/Linux, MIPS64/Linux, ARM/Android, ARM64/Android,
MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/MacOSX
10.10 and AMD64/MacOSX 10.10. There is also preliminary support for
X86/MacOSX 10.11/12, AMD64/MacOSX 10.11/12 and TILEGX/Linux.
* ================== PLATFORM CHANGES =================
* POWER: Support for ISA 3.0 has been added
* mips: support for O32 FPXX ABI has been added.
* mips: improved recognition of different processors
* mips: determination of page size now done at run time
* amd64: Partial support for AMD FMA4 instructions.
* arm, arm64: Support for v8 crypto and CRC instructions.
* Improvements and robustification of the Solaris port.
* Preliminary support for MacOS 10.12 (Sierra) has been added.
Whilst 3.12.0 continues to support the 32-bit x86 instruction set, we
would prefer users to migrate to 64-bit x86 (a.k.a amd64 or x86_64)
where possible. Valgrind's support for 32-bit x86 has stagnated in
recent years and has fallen far behind that for 64-bit x86
instructions. By contrast 64-bit x86 is well supported, up to and
including AVX2.
* ==================== TOOL CHANGES ====================
* Memcheck:
- Added meta mempool support for describing a custom allocator which:
- Auto-frees all chunks assuming that destroying a pool destroys all
objects in the pool
- Uses itself to allocate other memory blocks
- New flag --ignore-range-below-sp to ignore memory accesses below
the stack pointer, if you really have to. The related flag
--workaround-gcc296-bugs=yes is now deprecated. Use
--ignore-range-below-sp=1024-1 as a replacement.
* DRD:
- Improved thread startup time significantly on non-Linux platforms.
* DHAT
- Added collection of the metric "tot-blocks-allocd"
* ==================== OTHER CHANGES ====================
* Replacement/wrapping of malloc/new related functions is now done not just
for system libraries by default, but for any globally defined malloc/new
related function (both in shared libraries and statically linked alternative
malloc implementations). The dynamic (runtime) linker is excluded, though.
To only intercept malloc/new related functions in
system libraries use --soname-synonyms=somalloc=nouserintercepts (where
"nouserintercepts" can be any non-existing library name).
This new functionality is not implemented for MacOS X.
* The maximum number of callers in a suppression entry is now equal to
the maximum size for --num-callers (500).
Note that --gen-suppressions=yes|all similarly generates suppressions
containing up to --num-callers frames.
* New and modified GDB server monitor features:
- Valgrind's gdbserver now accepts the command 'catch syscall'.
Note that you must have GDB >= 7.11 to use 'catch syscall' with
gdbserver.
* New option --run-cxx-freeres=<yes|no> can be used to change whether
__gnu_cxx::__freeres() cleanup function is called or not. Default is
'yes'.
* Valgrind is able to read compressed debuginfo sections in two formats:
- zlib ELF gABI format with SHF_COMPRESSED flag (gcc option -gz=zlib)
- zlib GNU format with .zdebug sections (gcc option -gz=zlib-gnu)
* Modest JIT-cost improvements: the cost of instrumenting code blocks
for the most common use case (x86_64-linux, Memcheck) has been
reduced by 10%-15%.
* Improved performance for programs that do a lot of discarding of
instruction address ranges of 8KB or less.
* The C++ symbol demangler has been updated.
* More robustness against invalid syscall parameters on Linux.
* ==================== FIXED BUGS ====================
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
191069 Exiting due to signal not reported in XML output
199468 Suppressions: stack size limited to 25
while --num-callers allows more frames
212352 vex amd64 unhandled opc_aux = 0x 2, first_opcode == 0xDC (FCOM)
278744 cvtps2pd with redundant RexW
303877 valgrind doesn't support compressed debuginfo sections.
345307 Warning about "still reachable" memory when using libstdc++ from gcc 5
348345 Assertion fails for negative lineno
348924 MIPS: Load doubles through memory so the code compiles with the FPXX ABI
351282 V 3.10.1 MIPS softfloat build broken with GCC 4.9.3 / binutils 2.25.1
351692 Dumps created by valgrind are not readable by gdb (mips32 specific)
351804 Crash on generating suppressions for "printf" call on OS X 10.10
352197 mips: mmap2() not wrapped correctly for page size > 4096
353083 arm64 doesn't implement various xattr system calls
353084 arm64 doesn't support sigpending system call
353137 www: update info for Supported Platforms
353138 www: update "The Valgrind Developers" page
353370 don't advertise RDRAND in cpuid for Core-i7-4910-like avx2 machine
== 365325
== 357873
353384 amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x62 (pcmpXstrX $0x62)
353398 WARNING: unhandled amd64-solaris syscall: 207
353660 XML in auxwhat tag not escaping reserved symbols properly
353680 s390x: Crash with certain glibc versions due to non-implemented TBEGIN
353727 amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x72 (pcmpXstrX $0x72)
353802 ELF debug info reader confused with multiple .rodata sections
353891 Assert 'bad_scanned_addr < VG_ROUNDDN(start+len, sizeof(Addr))' failed
353917 unhandled amd64-solaris syscall fchdir(120)
353920 unhandled amd64-solaris syscall: 170
354274 arm: unhandled instruction: 0xEBAD 0x0AC1 (sub.w sl, sp, r1, lsl #3)
354392 unhandled amd64-solaris syscall: 171
354797 Vbit test does not include Iops for Power 8 instruction support
354883 tst->os_state.pthread - magic_delta assertion failure on OSX 10.11
== 361351
== 362920
== 366222
354933 Fix documentation of --kernel-variant=android-no-hw-tls option
355188 valgrind should intercept all malloc related global functions
355454 do not intercept malloc related symbols from the runtime linker
355455 stderr.exp of test cases wrapmalloc and wrapmallocstatic overconstrained
356044 Dwarf line info reader misinterprets is_stmt register
356112 mips: replace addi with addiu
356393 valgrind (vex) crashes because isZeroU happened
== 363497
== 364497
356676 arm64-linux: unhandled syscalls 125, 126 (sched_get_priority_max/min)
356678 arm64-linux: unhandled syscall 232 (mincore)
356817 valgrind.h triggers compiler errors on MSVC when defining NVALGRIND
356823 Unsupported ARM instruction: stlex
357059 x86/amd64: SSE cvtpi2ps with memory source does transition to MMX state
357338 Unhandled instruction for SHA instructions libcrypto Boring SSL
357673 crash if I try to run valgrind with a binary link with libcurl
357833 Setting RLIMIT_DATA to zero breaks with linux 4.5+
357871 pthread_spin_destroy not properly wrapped
357887 Calls to VG_(fclose) do not close the file descriptor
357932 amd64->IR: accept redundant REX prefixes for {minsd,maxsd} m128, xmm.
358030 support direct socket calls on x86 32bit (new in linux 4.3)
358478 drd/tests/std_thread.cpp doesn't build with GCC6
359133 Assertion 'eltSzB <= ddpa->poolSzB' failed
359181 Buffer Overflow during Demangling
359201 futex syscall "skips" argument 5 if op is FUTEX_WAIT_BITSET
359289 s390x: popcnt (B9E1) not implemented
359472 The Power PC vsubuqm instruction doesn't always give the correct result
359503 Add missing syscalls for aarch64 (arm64)
359645 "You need libc6-dbg" help message could be more helpful
359703 s390: wire up separate socketcalls system calls
359724 getsockname might crash - deref_UInt should call safe_to_deref
359733 amd64 implement ld.so strchr/index override like x86
359767 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 1/5
359829 Power PC test suite none/tests/ppc64/test_isa_2_07.c uses
uninitialized data
359838 arm64: Unhandled instruction 0xD5033F5F (clrex)
359871 Incorrect mask handling in ppoll
359952 Unrecognised PCMPESTRM variants (0x70, 0x19)
360008 Contents of Power vr registers contents is not printed correctly when
the --vgdb-shadow-registers=yes option is used
360035 POWER PC instruction bcdadd and bcdsubtract generate result with
non-zero shadow bits
360378 arm64: Unhandled instruction 0x5E280844 (sha1h s4, s2)
360425 arm64 unsupported instruction ldpsw
== 364435
360519 none/tests/arm64/memory.vgtest might fail with newer gcc
360571 Error about the Android Runtime reading below the stack pointer on ARM
360574 Wrong parameter type for an ashmem ioctl() call on Android and ARM64
360749 kludge for multiple .rodata sections on Solaris no longer needed
360752 raise the number of reserved fds in m_main.c from 10 to 12
361207 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 2/5
361226 s390x: risbgn (EC59) not implemented
361253 [s390x] ex_clone.c:42: undefined reference to `pthread_create'
361354 ppc64[le]: wire up separate socketcalls system calls
361615 Inconsistent termination for multithreaded process terminated by signal
361926 Unhandled Solaris syscall: sysfs(84)
362009 V dumps core on unimplemented functionality before threads are created
362329 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 3/5
362894 missing (broken) support for wbit field on mtfsfi instruction (ppc64)
362935 [AsusWRT] Assertion 'sizeof(TTEntryC) <= 88' failed
362953 Request for an update to the Valgrind Developers page
363680 add renameat2() support
363705 arm64 missing syscall name_to_handle_at and open_by_handle_at
363714 ppc64 missing syscalls sync, waitid and name_to/open_by_handle_at
363858 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 4/5
364058 clarify in manual limitations of array overruns detections
364413 pselect sycallwrapper mishandles NULL sigmask
364728 Power PC, missing support for several HW registers in
get_otrack_shadow_offset_wrk()
364948 Valgrind does not support the IBM POWER ISA 3.0 instructions, part 5/5
365273 Invalid write to stack location reported after signal handler runs
365912 ppc64BE segfault during jm-insns test (RELRO)
366079 FPXX Support for MIPS32 Valgrind
366138 Fix configure errors out when using Xcode 8 (clang 8.0.0)
366344 Multiple unhandled instruction for Aarch64
(0x0EE0E020, 0x1AC15800, 0x4E284801, 0x5E040023, 0x5E056060)
367995 Integration of memcheck with custom memory allocator
368120 x86_linux asm _start functions do not keep 16-byte aligned stack pointer
368412 False positive result for altivec capability check
368416 Add tc06_two_races_xml.exp output for ppc64
368419 Perf Events ioctls not implemented
368461 mmapunmap test fails on ppc64
368823 run_a_thread_NORETURN assembly code typo for VGP_arm64_linux target
369000 AMD64 fma4 instructions unsupported.
369169 ppc64 fails jm_int_isa_2_07 test
369175 jm_vec_isa_2_07 test crashes on ppc64
369209 valgrind loops and eats up all memory if cwd doesn't exist.
369356 pre_mem_read_sockaddr syscall wrapper can crash with bad sockaddr
369359 msghdr_foreachfield can crash when handling bad iovec
369360 Bad sigprocmask old or new sets can crash valgrind
369361 vmsplice syscall wrapper crashes on bad iovec
369362 Bad sigaction arguments crash valgrind
369383 x86 sys_modify_ldt wrapper crashes on bad ptr
369402 Bad set/get_thread_area pointer crashes valgrind
369441 bad lvec argument crashes process_vm_readv/writev syscall wrappers
369446 valgrind crashes on unknown fcntl command
369439 S390x: Unhandled insns RISBLG/RISBHG and LDE/LDER
369468 Remove quadratic metapool algorithm using VG_(HT_remove_at_Iter)
370265 ISA 3.0 HW cap stuff needs updating
371128 BCD add and subtract instructions on Power BE in 32-bit mode do not work
372195 Power PC, xxsel instruction is not always recognized
n-i-bz Fix incorrect (or infinite loop) unwind on RHEL7 x86 and amd64
n-i-bz massif --pages-as-heap=yes does not report peak caused by mmap+munmap
n-i-bz false positive leaks due to aspacemgr merging heap & non heap segments
n-i-bz Fix ppoll_alarm exclusion on OS X
n-i-bz Document brk segment limitation, reference manual in limit reached msg.
n-i-bz Fix clobber list in none/tests/amd64/xacq_xrel.c [valgrind r15737]
n-i-bz Bump allowed shift value for "add.w reg, sp, reg, lsl #N" [vex r3206]
n-i-bz amd64: memcheck false positive with shr %edx
n-i-bz arm3: Allow early writeback of SP base register in "strd rD, [sp, #-16]"
n-i-bz ppc: Fix two cases of PPCAvFpOp vs PPCFpOp enum confusion
n-i-bz arm: Fix incorrect register-number constraint check for LDAEX{,B,H,D}
n-i-bz DHAT: added collection of the metric "tot-blocks-allocd"
(3.12.0.RC1: 20 October 2016, vex r3282, valgrind r16094)
(3.12.0.RC2: 20 October 2016, vex r3282, valgrind r16096)
(3.12.0: 21 October 2016, vex r3282, valgrind r16098)
Release 3.11.0 (22 September 2015)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3.11.0 is a feature release with many improvements and the usual
collection of bug fixes.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux,
ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux,
MIPS32/Linux, MIPS64/Linux, ARM/Android, ARM64/Android,
MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/MacOSX
10.10 and AMD64/MacOSX 10.10. There is also preliminary support for
X86/MacOSX 10.11, AMD64/MacOSX 10.11 and TILEGX/Linux.
* ================== PLATFORM CHANGES =================
* Support for Solaris/x86 and Solaris/amd64 has been added.
* Preliminary support for Mac OS X 10.11 (El Capitan) has been added.
* Preliminary support for the Tilera TileGX architecture has been added.
* s390x: It is now required for the host to have the "long displacement"
facility. The oldest supported machine model is z990.
* x86: on an SSE2 only host, Valgrind in 32 bit mode now claims to be a
Pentium 4. 3.10.1 wrongly claimed to be a Core 2, which is SSSE3.
* The JIT's register allocator is significantly faster, making the JIT
as a whole somewhat faster, so JIT-intensive activities, for example
program startup, are modestly faster, around 5%.
* There have been changes to the default settings of several command
line flags, as detailed below.
* Intel AVX2 support is more complete (64 bit targets only). On AVX2
capable hosts, the simulated CPUID will now indicate AVX2 support.
* ==================== TOOL CHANGES ====================
* Memcheck:
- The default value for --leak-check-heuristics has been changed from
"none" to "all". This helps to reduce the number of possibly
lost blocks, in particular for C++ applications.
- The default value for --keep-stacktraces has been changed from
"malloc-then-free" to "malloc-and-free". This has a small cost in
memory (one word per malloc-ed block) but allows Memcheck to show the
3 stacktraces of a dangling reference: where the block was allocated,
where it was freed, and where it is acccessed after being freed.
- The default value for --partial-loads-ok has been changed from "no" to
"yes", so as to avoid false positive errors resulting from some kinds
of vectorised loops.
- A new monitor command 'xb <addr> <len>' shows the validity bits of
<len> bytes at <addr>. The monitor command 'xb' is easier to use
than get_vbits when you need to associate byte data value with
their corresponding validity bits.
- The 'block_list' monitor command has been enhanced:
o it can print a range of loss records
o it now accepts an optional argument 'limited <max_blocks>'
to control the number of blocks printed.
o if a block has been found using a heuristic, then
'block_list' now shows the heuristic after the block size.
o the loss records/blocks to print can be limited to the blocks
found via specified heuristics.
- The C helper functions used to instrument loads on
x86-{linux,solaris} and arm-linux (both 32-bit only) have been
replaced by handwritten assembly sequences. This gives speedups
in the region of 0% to 7% for those targets only.
- A new command line option, --expensive-definedness-checks=yes|no,
has been added. This is useful for avoiding occasional invalid
uninitialised-value errors in optimised code. Watch out for
runtime degradation, as this can be up to 25%. As always, though,
the slowdown is highly application specific. The default setting
is "no".
* Massif:
- A new monitor command 'all_snapshots <filename>' dumps all
snapshots taken so far.
* Helgrind:
- Significant memory reduction and moderate speedups for
--history-level=full for applications accessing a lot of memory
with many different stacktraces.
- The default value for --conflict-cache-size=N has been doubled to
2000000. Users that were not using the default value should
preferably also double the value they give.
The default was changed due to the changes in the "full history"
implementation. Doubling the value gives on average a slightly more
complete history and uses similar memory (or significantly less memory
in the worst case) than the previous implementation.
- The Helgrind monitor command 'info locks' now accepts an optional
argument 'lock_addr', which shows information about the lock at the
given address only.
- When using --history-level=full, the new Helgrind monitor command
'accesshistory <addr> [<len>]' will show the recorded accesses for
<len> (or 1) bytes at <addr>.
* ==================== OTHER CHANGES ====================
* The default value for the --smc-check option has been changed from
"stack" to "all-non-file" on targets that provide automatic D-I
cache coherence (x86, amd64 and s390x). The result is to provide,
by default, transparent support for JIT generated and self-modifying
code on all targets.
* Mac OS X only: the default value for the --dsymutil option has been
changed from "no" to "yes", since any serious usage on Mac OS X
always required it to be "yes".
* The command line options --db-attach and --db-command have been removed.
They were deprecated in 3.10.0.
* When a process dies due to a signal, Valgrind now shows the signal
and the stacktrace at default verbosity (i.e. verbosity 1).
* The address description logic used by Memcheck and Helgrind now
describes addresses in anonymous segments, file mmap-ed segments,
shared memory segments and the brk data segment.
* The new option --error-markers=<begin>,<end> can be used to mark the
begin/end of errors in textual output mode, to facilitate
searching/extracting errors in output files that mix valgrind errors
with program output.
* The new option --max-threads=<number> can be used to change the number
of threads valgrind can handle. The default is 500 threads which
should be more than enough for most applications.
* The new option --valgrind-stacksize=<number> can be used to change the
size of the private thread stacks used by Valgrind. This is useful
for reducing memory use or increasing the stack size if Valgrind
segfaults due to stack overflow.
* The new option --avg-transtab-entry-size=<number> can be used to specify
the expected instrumented block size, either to reduce memory use or
to avoid excessive retranslation.
* Valgrind can be built with Intel's ICC compiler, version 14.0 or later.
* New and modified GDB server monitor features:
- When a signal is reported in GDB, you can now use the GDB convenience
variable $_siginfo to examine detailed signal information.
- Valgrind's gdbserver now allows the user to change the signal
to deliver to the process. So, use 'signal SIGNAL' to continue execution
with SIGNAL instead of the signal reported to GDB. Use 'signal 0' to
continue without passing the signal to the process.
- With GDB >= 7.10, the command 'target remote'
will automatically load the executable file of the process running
under Valgrind. This means you do not need to specify the executable
file yourself, GDB will discover it itself. See GDB documentation about
'qXfer:exec-file:read' packet for more info.
* ==================== FIXED BUGS ====================
The following bugs have been fixed or resolved. Note that "n-i-bz"
stands for "not in bugzilla" -- that is, a bug that was reported to us
but never got a bugzilla entry. We encourage you to file bugs in
bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
than mailing the developers (or mailing lists) directly -- bugs that
are not entered into bugzilla tend to get forgotten about or ignored.
To see details of a given bug, visit
https://bugs.kde.org/show_bug.cgi?id=XXXXXX
where XXXXXX is the bug number as listed below.
116002 VG_(printf): Problems with justification of strings and integers
155125 avoid cutting away file:lineno after long function name
197259 Unsupported arch_prtctl PR_SET_GS option
201152 ppc64: Assertion in ppc32g_dirtyhelper_MFSPR_268_269
201216 Fix Valgrind does not support pthread_sigmask() on OS X
201435 Fix Darwin: -v does not show kernel version
208217 "Warning: noted but unhandled ioctl 0x2000747b" on Mac OS X
211256 Fixed an outdated comment regarding the default platform.
211529 Incomplete call stacks for code compiled by newer versions of MSVC
211926 Avoid compilation warnings in valgrind.h with -pedantic
212291 Fix unhandled syscall: unix:132 (mkfifo) on OS X
== 263119
226609 Crediting upstream authors in man page
231257 Valgrind omits path when executing script from shebang line
254164 OS X task_info: UNKNOWN task message [id 3405, to mach_task_self() [..]
294065 Improve the pdb file reader by avoiding hardwired absolute pathnames
269360 s390x: Fix addressing mode selection for compare-and-swap
302630 Memcheck: Assertion failed: 'sizeof(UWord) == sizeof(UInt)'
== 326797
312989 ioctl handling needs to do POST handling on generic ioctls and [..]
319274 Fix unhandled syscall: unix:410 (sigsuspend_nocancel) on OS X
324181 mmap does not handle MAP_32BIT (handle it now, rather than fail it)
327745 Fix valgrind 3.9.0 build fails on Mac OS X 10.6.8
330147 libmpiwrap PMPI_Get_count returns undefined value
333051 mmap of huge pages fails due to incorrect alignment
== 339163
334802 valgrind does not always explain why a given option is bad
335618 mov.w rN, pc/sp (ARM32)
335785 amd64->IR 0xC4 0xE2 0x75 0x2F (vmaskmovpd)
== 307399
== 343175
== 342740
== 346912
335907 segfault when running wine's ddrawex/tests/surface.c under valgrind
338602 AVX2 bit in CPUID missing
338606 Strange message for scripts with invalid interpreter
338731 ppc: Fix testuite build for toolchains not supporting -maltivec
338995 shmat with hugepages (SHM_HUGETLB) fails with EINVAL
339045 Getting valgrind to compile and run on OS X Yosemite (10.10)
== 340252
339156 gdbsrv not called for fatal signal
339215 Valgrind 3.10.0 contain 2013 in copyrights notice
339288 support Cavium Octeon MIPS specific BBIT*32 instructions
339636 Use fxsave64 and fxrstor64 mnemonics instead of old-school rex64 prefix
339442 Fix testsuite build failure on OS X 10.9
339542 Enable compilation with Intel's ICC compiler
339563 The DVB demux DMX_STOP ioctl doesn't have a wrapper
339688 Mac-specific ASM does not support .version directive (cpuid,
tronical and pushfpopf tests)
339745 Valgrind crash when check Marmalade app (partial fix)
339755 Fix known deliberate memory leak in setenv() on Mac OS X 10.9
339778 Linux/TileGx platform support for Valgrind
339780 Fix known uninitialised read in pthread_rwlock_init() on Mac OS X 10.9
339789 Fix none/tests/execve test on Mac OS X 10.9
339808 Fix none/tests/rlimit64_nofile test on Mac OS X 10.9
339820 vex amd64->IR: 0x66 0xF 0x3A 0x63 0xA 0x42 0x74 0x9 (pcmpistri $0x42)
340115 Fix none/tests/cmdline[1|2] tests on systems which define TMPDIR
340392 Allow user to select more accurate definedness checking in memcheck
to avoid invalid complaints on optimised code
340430 Fix some grammatical weirdness in the manual.
341238 Recognize GCC5/DWARFv5 DW_LANG constants (Go, C11, C++11, C++14)
341419 Signal handler ucontext_t not filled out correctly on OS X
341539 VG_(describe_addr) should not describe address as belonging to client
segment if it is past the heap end
341613 Enable building of manythreads and thread-exits tests on Mac OS X
341615 Fix none/tests/darwin/access_extended test on Mac OS X
341698 Valgrind's AESKEYGENASSIST gives wrong result in words 0 and 2 [..]
341789 aarch64: shmat fails with valgrind on ARMv8
341997 MIPS64: Cavium OCTEON insns - immediate operand handled incorrectly
342008 valgrind.h needs type cast [..] for clang/llvm in 64-bit mode
342038 Unhandled syscalls on aarch64 (mbind/get/set_mempolicy)
342063 wrong format specifier for test mcblocklistsearch in gdbserver_tests
342117 Hang when loading PDB file for MSVC compiled Firefox under Wine
342221 socket connect false positive uninit memory for unknown af family
342353 Allow dumping full massif output while valgrind is still running
342571 Valgrind chokes on AVX compare intrinsic with _CMP_GE_QS
== 346476
== 348387
== 350593
342603 Add I2C_SMBUS ioctl support
342635 OS X 10.10 (Yosemite) - missing system calls and fcntl code
342683 Mark memory past the initial brk limit as unaddressable
342783 arm: unhandled instruction 0xEEFE1ACA = "vcvt.s32.f32 s3, s3, #12"
342795 Internal glibc __GI_mempcpy call should be intercepted
342841 s390x: Support instructions fiebr(a) and fidbr(a)
343012 Unhandled syscall 319 (memfd_create)
343069 Patch updating v4l2 API support
343173 helgrind crash during stack unwind
343219 fix GET_STARTREGS for arm
343303 Fix known deliberate memory leak in setenv() on Mac OS X 10.10
343306 OS X 10.10: UNKNOWN mach_msg unhandled MACH_SEND_TRAILER option
343332 Unhandled instruction 0x9E310021 (fcvtmu) on aarch64
343335 unhandled instruction 0x1E638400 (fccmp) aarch64
343523 OS X mach_ports_register: UNKNOWN task message [id 3403, to [..]
343525 OS X host_get_special_port: UNKNOWN host message [id 412, to [..]
343597 ppc64le: incorrect use of offseof macro
343649 OS X host_create_mach_voucher: UNKNOWN host message [id 222, to [..]
343663 OS X 10.10 Memchecj always reports a leak regardless of [..]