Harmless (?!) code leads to illegal instruction #29066
Labels
bug
Indicates an unexpected problem or unintended behavior
compiler:optimizer
Optimization passes (mostly in base/compiler/ssair/)
Comments
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Worked for me. Maybe a stupid question, but should the |
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No, I don't think so - at least it wasn't in the origin example, and it didn't need to in the MWE. (the error comes when pressing enter) if record_reference_images
cd(homedir()) do
isdir(dirname(recordpath)) || run(`git clone git@github.com:SimonDanisch/ReferenceImages.git`)
isdir(recordpath) && rm(recordpath)
end
end
Cloning into 'ReferenceImages'...
Enter passphrase for key '/c/Users/sdani/.ssh/id_rsa':
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
Unreachable reached at 00000000290D0F94
Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
Exception: EXCEPTION_ILLEGAL_INSTRUCTION at 0x290d0f94 -- cd at .\file.jl:85
in expression starting at no file:0
cd at .\file.jl:87
unknown function (ip: 00000000290D0FBB)
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1829
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2182
do_call at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:324
eval_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:428
eval_stmt_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:363 [inlined]
eval_body at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:682
jl_interpret_toplevel_thunk_callback at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:799
unknown function (ip: FFFFFFFFFFFFFFFE)
unknown function (ip: 00000000106AEDAF)
unknown function (ip: 0000000000000009)
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:787
jl_toplevel_eval_in at /home/Administrator/buildbot/worker/package_win64/build/src\builtins.c:622
eval at .\boot.jl:319
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2182
eval_user_input at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\REPL\src\REPL.jl:85
macro expansion at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\REPL\src\REPL.jl:117 [inlined]
#28 at .\task.jl:259
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1829
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2182
jl_apply at /home/Administrator/buildbot/worker/package_win64/build/src\julia.h:1536 [inlined]
start_task at /home/Administrator/buildbot/worker/package_win64/build/src\task.c:268
Allocations: 2684473 (Pool: 2683974; Big: 499); GC: 5And then just the command alone: |
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I just run into the same error in some other unrelated, but also harmless looking code: Unreachable reached at 0x7fe1fe6630fb
signal (4): Illegal instruction
in expression starting at cell:1
check_top_bit at ./boot.jl:581 [inlined]
toUInt64 at ./boot.jl:692 [inlined]
Type at ./boot.jl:722 [inlined]
convert at ./number.jl:7 [inlined]
cconvert at ./essentials.jl:344 [inlined]
== at ./strings/string.jl:102 [inlined]
#84 at /root/.julia/packages/WebIO/myl19/src/providers/generic_http.jl:116The code in generic_http is: Seems like #25430 is unrelated?! |
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Tested with latest master, which fixes #29468 but still fails with the issue here: julia> cd(homedir()) do
run(`blah`)
rand(Bool) && nothing
end
Unreachable reached at 0x7f5ee4334d73
signal (4): Illegal instruction
in expression starting at no file:0
cd at ./file.jl:99
unknown function (ip: 0x7f5ee4334d95)
jl_fptr_trampoline at /home/sd/juliastuff/julia/src/gf.c:1843
jl_apply_generic at /home/sd/juliastuff/julia/src/gf.c:2198
do_call at /home/sd/juliastuff/julia/src/interpreter.c:323
eval_value at /home/sd/juliastuff/julia/src/interpreter.c:411
eval_stmt_value at /home/sd/juliastuff/julia/src/interpreter.c:362 [inlined]
eval_body at /home/sd/juliastuff/julia/src/interpreter.c:768
jl_interpret_toplevel_thunk_callback at /home/sd/juliastuff/julia/src/interpreter.c:880
unknown function (ip: 0xfffffffffffffffe)
unknown function (ip: 0x7f5ef1d5b57f)
unknown function (ip: 0x7)
jl_interpret_toplevel_thunk at /home/sd/juliastuff/julia/src/interpreter.c:889
jl_toplevel_eval_flex at /home/sd/juliastuff/julia/src/toplevel.c:818
jl_toplevel_eval_in at /home/sd/juliastuff/julia/src/builtins.c:622
eval at ./boot.jl:319
jl_apply_generic at /home/sd/juliastuff/julia/src/gf.c:2198
eval_user_input at /home/sd/juliastuff/julia/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:85
macro expansion at /home/sd/juliastuff/julia/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:117 [inlined]
#26 at ./task.jl:259
jl_apply_generic at /home/sd/juliastuff/julia/src/gf.c:2198
jl_apply at /home/sd/juliastuff/julia/src/julia.h:1562 [inlined]
start_task at /home/sd/juliastuff/julia/src/task.c:504
unknown function (ip: 0xffffffffffffffff)
Allocations: 1138948 (Pool: 1138767; Big: 181); GC: 1
Illegal instruction (core dumped)As you can see I reduced the example a bit... Right hand of short circuit doesn't matter - just seems to be important that the compiler can't infer whether it's true or false! |
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Yeah, there's many cases where we can't handle errors with |
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Oh wow^^ Well, seems like #29158 fixes this :) |
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Is this crash related (segmentation violation)? |
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It's hard to say. If you haven't filed it yet, please file an issue with instructions for reproducing it. If it turns out to be a duplicate of something else we'll figure that out eventually. |
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I think it's related... I can reproduce it on julia 1.0, while i get an error on @Keno branch: julia> c = h5open("mydata.h5", "r") do file
read(file, "A")
end
HDF5-DIAG: Error detected in HDF5 (1.10.0-patch1) thread 139890977341632:
#000: ../../../src/H5O.c line 257 in H5Oopen(): unable to open object
major: Object header
minor: Can't open object
#001: ../../../src/H5O.c line 1499 in H5O_open_name(): object not found
major: Object header
minor: Object not found
#002: ../../../src/H5Gloc.c line 430 in H5G_loc_find(): can't find object
major: Symbol table
minor: Object not found
#003: ../../../src/H5Gtraverse.c line 869 in H5G_traverse(): internal path traversal failed
major: Symbol table
minor: Object not found
#004: ../../../src/H5Gtraverse.c line 641 in H5G_traverse_real(): traversal operator failed
major: Symbol table
minor: Callback failed
#005: ../../../src/H5Gloc.c line 385 in H5G_loc_find_cb(): object 'A' doesn't exist
major: Symbol table
minor: Object not found |
JeffBezanson
added
compiler:optimizer
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Appears to be fixed after #29158. |
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