<p dir="auto">I see this failure with Fedora nightlies with LLVM 3.4. It has been introduced over the last two or three weeks. See also <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="89482517" data-permission-text="Title is private" data-url="https://github.com/JuliaLang/julia/issues/11760" data-hovercard-type="issue" data-hovercard-url="/JuliaLang/julia/issues/11760/hovercard" href="https://github.com/JuliaLang/julia/issues/11760">#11760</a> : I'm not sure when one or the other happens, but these are on two different distro versions.</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content=" /builddir/build/BUILD/julia/build/usr/bin/julia --check-bounds=yes --startup-file=no ./runtests.jl all
    From worker 3:       * linalg2              in  85.89 seconds
    From worker 3:       * linalg3              in  41.05 seconds
    From worker 2:       * linalg1              in 143.13 seconds
    From worker 3:       * linalg4              in  22.66 seconds
    From worker 2:       * linalg/lapack        in  37.76 seconds
    From worker 2:       * linalg/tridiag       in  22.18 seconds
    From worker 2:       * linalg/bidiag        in  28.83 seconds
    From worker 2:       * linalg/diagonal      in  32.03 seconds
    From worker 2:       * linalg/pinv          in  13.75 seconds
    From worker 2:       * linalg/givens        in   2.80 seconds
    From worker 2:       * linalg/cholesky      in  23.20 seconds
    From worker 2:       * linalg/lu            in  34.96 seconds
    From worker 2:       * linalg/symmetric     in  45.59 seconds
    From worker 2:       * linalg/arnoldi       in  37.17 seconds
    From worker 2:       * core                 in 101.81 seconds
    From worker 2:       * keywordargs          in  18.00 seconds
    From worker 3:       * linalg/triangular    in 782.28 seconds
    From worker 2:       * numbers              in 562.26 seconds
    From worker 3:       * strings              in 334.97 seconds
    From worker 3:       * dict                 in 101.83 seconds
    From worker 3:       * hashing              in 250.45 seconds
    From worker 3:       * remote               in   3.56 seconds
    From worker 3:       * iobuffer             in  23.88 seconds
    From worker 3:       * staged               in  24.35 seconds
    From worker 2:       * dates                in 571.13 seconds
    From worker 2:       * tuple                in  39.55 seconds
    From worker 3:       * arrayops             in 601.16 seconds
    From worker 3:       * reduce               in  78.05 seconds
    From worker 3:       * reducedim            in 190.54 seconds
    From worker 3:       * random               in 328.46 seconds
    From worker 3:       * intfuncs             in  36.57 seconds
    From worker 3:       * simdloop             in  23.35 seconds
    From worker 3:       * blas                 in  95.02 seconds
    From worker 3:       * sparse               in 642.17 seconds
    From worker 2:       * subarray             in 2389.31 seconds
    From worker 2:       * copy                 in  36.57 seconds
    From worker 2:       * math                 in 236.53 seconds
    From worker 3:       * bitarray             in 744.55 seconds
    From worker 3:       * functional           in  27.87 seconds
    From worker 3:       * operators            in   7.31 seconds
    From worker 3:       * path                 in  18.64 seconds
signal (11): Segmentation fault
sub_fast at ./fastmath.jl:214
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
do_call at /builddir/build/BUILD/julia/src/interpreter.c:66
eval at /builddir/build/BUILD/julia/src/interpreter.c:212
jl_interpret_toplevel_expr at /builddir/build/BUILD/julia/src/interpreter.c:28
jl_toplevel_eval_flex at /builddir/build/BUILD/julia/src/toplevel.c:525
jl_eh_restore_state at /builddir/build/BUILD/julia/src/julia.h:1388
jl_f_top_eval at /builddir/build/BUILD/julia/src/builtins.c:569
anonymous at ./test.jl:91
do_test at ./test.jl:49
anonymous at ./no file:156
jl_trampoline at /builddir/build/BUILD/julia/src/builtins.c:965
jl_toplevel_eval_flex at /builddir/build/BUILD/julia/src/toplevel.c:540
jl_toplevel_eval_flex at /builddir/build/BUILD/julia/src/toplevel.c:569
jl_load at /builddir/build/BUILD/julia/src/toplevel.c:616
jl_load_ at /builddir/build/BUILD/julia/src/toplevel.c:622
include at ./boot.jl:254
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
runtests at /builddir/build/BUILD/julia/test/testdefs.jl:198
unknown function (ip: -816032829)
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
jl_f_apply at /builddir/build/BUILD/julia/src/builtins.c:473
anonymous at ./multi.jl:822
run_work_thunk at ./multi.jl:575
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
anonymous at ./multi.jl:822
start_task at /builddir/build/BUILD/julia/src/task.c:234
    From worker 2:       * fastmath            Worker 2 terminated.
ERROR (unhandled task failure): EOFError: read end of file
 in yieldto at ./task.jl:21
 in wait at ./task.jl:309
 in wait at ./task.jl:225
 in wait_full at ./multi.jl:558
 in remotecall_fetch at ./multi.jl:658
 in remotecall_fetch at ./multi.jl:663
 in anonymous at ./task.jl:1372
    From worker 3:       * ccall                in  76.12 seconds
ERROR: LoadError: ProcessExitedException()
 in yieldto at ./task.jl:21
 in wait at ./task.jl:309
 in wait at ./task.jl:225
 in wait_full at ./multi.jl:558
 in remotecall_fetch at ./multi.jl:658
 in remotecall_fetch at ./multi.jl:663
 in anonymous at ./task.jl:1372
while loading /builddir/build/BUILD/julia/test/runtests.jl, in expression starting on line 5
WARNING: Forcibly interrupting busy workers
WARNING: Unable to terminate all workers
Makefile:9: recipe for target 'all' failed
make[1]: *** [all] Error 1
make[1]: Leaving directory '/builddir/build/BUILD/julia/test'
Makefile:508: recipe for target 'test' failed
make: *** [test] Error 2"><pre class="notranslate"><code class="notranslate"> /builddir/build/BUILD/julia/build/usr/bin/julia --check-bounds=yes --startup-file=no ./runtests.jl all
    From worker 3:       * linalg2              in  85.89 seconds
    From worker 3:       * linalg3              in  41.05 seconds
    From worker 2:       * linalg1              in 143.13 seconds
    From worker 3:       * linalg4              in  22.66 seconds
    From worker 2:       * linalg/lapack        in  37.76 seconds
    From worker 2:       * linalg/tridiag       in  22.18 seconds
    From worker 2:       * linalg/bidiag        in  28.83 seconds
    From worker 2:       * linalg/diagonal      in  32.03 seconds
    From worker 2:       * linalg/pinv          in  13.75 seconds
    From worker 2:       * linalg/givens        in   2.80 seconds
    From worker 2:       * linalg/cholesky      in  23.20 seconds
    From worker 2:       * linalg/lu            in  34.96 seconds
    From worker 2:       * linalg/symmetric     in  45.59 seconds
    From worker 2:       * linalg/arnoldi       in  37.17 seconds
    From worker 2:       * core                 in 101.81 seconds
    From worker 2:       * keywordargs          in  18.00 seconds
    From worker 3:       * linalg/triangular    in 782.28 seconds
    From worker 2:       * numbers              in 562.26 seconds
    From worker 3:       * strings              in 334.97 seconds
    From worker 3:       * dict                 in 101.83 seconds
    From worker 3:       * hashing              in 250.45 seconds
    From worker 3:       * remote               in   3.56 seconds
    From worker 3:       * iobuffer             in  23.88 seconds
    From worker 3:       * staged               in  24.35 seconds
    From worker 2:       * dates                in 571.13 seconds
    From worker 2:       * tuple                in  39.55 seconds
    From worker 3:       * arrayops             in 601.16 seconds
    From worker 3:       * reduce               in  78.05 seconds
    From worker 3:       * reducedim            in 190.54 seconds
    From worker 3:       * random               in 328.46 seconds
    From worker 3:       * intfuncs             in  36.57 seconds
    From worker 3:       * simdloop             in  23.35 seconds
    From worker 3:       * blas                 in  95.02 seconds
    From worker 3:       * sparse               in 642.17 seconds
    From worker 2:       * subarray             in 2389.31 seconds
    From worker 2:       * copy                 in  36.57 seconds
    From worker 2:       * math                 in 236.53 seconds
    From worker 3:       * bitarray             in 744.55 seconds
    From worker 3:       * functional           in  27.87 seconds
    From worker 3:       * operators            in   7.31 seconds
    From worker 3:       * path                 in  18.64 seconds
signal (11): Segmentation fault
sub_fast at ./fastmath.jl:214
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
do_call at /builddir/build/BUILD/julia/src/interpreter.c:66
eval at /builddir/build/BUILD/julia/src/interpreter.c:212
jl_interpret_toplevel_expr at /builddir/build/BUILD/julia/src/interpreter.c:28
jl_toplevel_eval_flex at /builddir/build/BUILD/julia/src/toplevel.c:525
jl_eh_restore_state at /builddir/build/BUILD/julia/src/julia.h:1388
jl_f_top_eval at /builddir/build/BUILD/julia/src/builtins.c:569
anonymous at ./test.jl:91
do_test at ./test.jl:49
anonymous at ./no file:156
jl_trampoline at /builddir/build/BUILD/julia/src/builtins.c:965
jl_toplevel_eval_flex at /builddir/build/BUILD/julia/src/toplevel.c:540
jl_toplevel_eval_flex at /builddir/build/BUILD/julia/src/toplevel.c:569
jl_load at /builddir/build/BUILD/julia/src/toplevel.c:616
jl_load_ at /builddir/build/BUILD/julia/src/toplevel.c:622
include at ./boot.jl:254
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
runtests at /builddir/build/BUILD/julia/test/testdefs.jl:198
unknown function (ip: -816032829)
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
jl_f_apply at /builddir/build/BUILD/julia/src/builtins.c:473
anonymous at ./multi.jl:822
run_work_thunk at ./multi.jl:575
jl_apply at /builddir/build/BUILD/julia/src/julia.h:1298
anonymous at ./multi.jl:822
start_task at /builddir/build/BUILD/julia/src/task.c:234
    From worker 2:       * fastmath            Worker 2 terminated.
ERROR (unhandled task failure): EOFError: read end of file
 in yieldto at ./task.jl:21
 in wait at ./task.jl:309
 in wait at ./task.jl:225
 in wait_full at ./multi.jl:558
 in remotecall_fetch at ./multi.jl:658
 in remotecall_fetch at ./multi.jl:663
 in anonymous at ./task.jl:1372
    From worker 3:       * ccall                in  76.12 seconds
ERROR: LoadError: ProcessExitedException()
 in yieldto at ./task.jl:21
 in wait at ./task.jl:309
 in wait at ./task.jl:225
 in wait_full at ./multi.jl:558
 in remotecall_fetch at ./multi.jl:658
 in remotecall_fetch at ./multi.jl:663
 in anonymous at ./task.jl:1372
while loading /builddir/build/BUILD/julia/test/runtests.jl, in expression starting on line 5
WARNING: Forcibly interrupting busy workers
WARNING: Unable to terminate all workers
Makefile:9: recipe for target 'all' failed
make[1]: *** [all] Error 1
make[1]: Leaving directory '/builddir/build/BUILD/julia/test'
Makefile:508: recipe for target 'test' failed
make: *** [test] Error 2
</code></pre></div>
<p dir="auto"><a href="https://copr-be.cloud.fedoraproject.org/results/nalimilan/julia-nightlies/fedora-21-i386/julia-0.4.0-0.20150618.fc21/build.log.gz" rel="nofollow">https://copr-be.cloud.fedoraproject.org/results/nalimilan/julia-nightlies/fedora-21-i386/julia-0.4.0-0.20150618.fc21/build.log.gz</a></p>
<p dir="auto">On my (Broadwell) machine, using the latest rc:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="julia&gt; versioninfo()
Julia Version 0.5.0-rc2+0
Commit 0350e57 (2016-08-12 11:25 UTC)
Platform Info:
  System: Darwin (x86_64-apple-darwin13.4.0)
  CPU: Intel(R) Core(TM) i5-5287U CPU @ 2.90GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.7.1 (ORCJIT, broadwell)

julia&gt; @code_native muladd(1.0,2.0,3.0)
    .section    __TEXT,__text,regular,pure_instructions
Filename: float.jl
    pushq   %rbp
    movq    %rsp, %rbp
Source line: 247
    mulsd   %xmm1, %xmm0
    addsd   %xmm2, %xmm0
    popq    %rbp
    retq
Source line: 247
    nop"><pre class="notranslate"><code class="notranslate">julia&gt; versioninfo()
Julia Version 0.5.0-rc2+0
Commit 0350e57 (2016-08-12 11:25 UTC)
Platform Info:
  System: Darwin (x86_64-apple-darwin13.4.0)
  CPU: Intel(R) Core(TM) i5-5287U CPU @ 2.90GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.7.1 (ORCJIT, broadwell)

julia&gt; @code_native muladd(1.0,2.0,3.0)
    .section    __TEXT,__text,regular,pure_instructions
Filename: float.jl
    pushq   %rbp
    movq    %rsp, %rbp
Source line: 247
    mulsd   %xmm1, %xmm0
    addsd   %xmm2, %xmm0
    popq    %rbp
    retq
Source line: 247
    nop
</code></pre></div>
<p dir="auto">The same version built from scratch on my machine:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="julia&gt; versioninfo()
Julia Version 0.5.0-rc2+0
Commit 0350e57 (2016-08-12 11:25 UTC)
Platform Info:
  System: Darwin (x86_64-apple-darwin15.6.0)
  CPU: Intel(R) Core(TM) i5-5287U CPU @ 2.90GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.7.1 (ORCJIT, broadwell)

julia&gt; @code_native muladd(1.0,2.0,3.0)
    .section    __TEXT,__text,regular,pure_instructions
Filename: float.jl
    pushq   %rbp
    movq    %rsp, %rbp
Source line: 247
    vfmadd213sd %xmm2, %xmm1, %xmm0
    popq    %rbp
    retq
Source line: 247
    nopl    (%rax,%rax)"><pre class="notranslate"><code class="notranslate">julia&gt; versioninfo()
Julia Version 0.5.0-rc2+0
Commit 0350e57 (2016-08-12 11:25 UTC)
Platform Info:
  System: Darwin (x86_64-apple-darwin15.6.0)
  CPU: Intel(R) Core(TM) i5-5287U CPU @ 2.90GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.7.1 (ORCJIT, broadwell)

julia&gt; @code_native muladd(1.0,2.0,3.0)
    .section    __TEXT,__text,regular,pure_instructions
Filename: float.jl
    pushq   %rbp
    movq    %rsp, %rbp
Source line: 247
    vfmadd213sd %xmm2, %xmm1, %xmm0
    popq    %rbp
    retq
Source line: 247
    nopl    (%rax,%rax)
</code></pre></div>