Bug 704236 - segfault of alt-ergo.opt during build
segfault of alt-ergo.opt during build
Product: Fedora
Classification: Fedora
Component: alt-ergo (Show other bugs)
powerpc Unspecified
unspecified Severity unspecified
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Assigned To: Alan Dunn
Fedora Extras Quality Assurance
Depends On:
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Reported: 2011-05-12 10:06 EDT by Karsten Hopp
Modified: 2012-08-07 10:48 EDT (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2012-08-07 10:48:44 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:

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Description Karsten Hopp 2011-05-12 10:06:02 EDT
Description of problem:
http://ppc.koji.fedoraproject.org/koji/taskinfo?taskID=215829 failed with a segmentation fault.
I've disabled stripping of alt-ergo.opt to get a gdb trace:

Core was generated by `./alt-ergo.opt -arrays swap0_why.why '.
Program terminated with signal 11, Segmentation fault.
#0  0x000000001012eba4 in .bng_generic_mult_add_digit ()
(gdb) bt
#0  0x000000001012eba4 in .bng_generic_mult_add_digit ()
#1  0x000000001012edf4 in .bng_generic_mult_add ()
#2  0x000000001012e07c in .mult_nat_native ()
#3  0x0000000010147e68 in .caml_c_call ()
#4  0x00000000100e27e4 in .camlBig_int__mult_big_int_1111 ()
#5  0x000000001006194c in .camlPolynome__ppmc_bi_1276 ()
#6  0x0000000010060254 in .camlPolynome__fun_1470 ()
#7  0x00000000100060f0 in .caml_apply3 ()
#8  0x0000000010105d40 in .camlMap__fold_1196 ()
#9  0x00000000100619f8 in .camlPolynome__ppmc_denominators_1279 ()
#10 0x0000000010061b5c in .camlPolynome__normal_form_1291 ()
#11 0x000000001004ce10 in .camlFm__add_equality_1884 ()
#12 0x0000000010048c64 in .camlFm__fun_2871 ()
#13 0x00000000100061b4 in .caml_apply2 ()
#14 0x00000000100f9394 in .camlList__fold_left_1078 ()
#15 0x000000001004dc9c in .camlFm__assume_1940 ()
#16 0x000000001002c4a4 in .camlCombine__assume_1874 ()
#17 0x00000000100061b4 in .caml_apply2 ()
#18 0x0000000010027768 in .camlCc__replay_atom_r_1644 ()
#19 0x0000000010027968 in .camlCc__replay_atom_1643 ()
#20 0x00000000100257d0 in .camlCc__fun_2150 ()
#21 0x00000000100061b4 in .caml_apply2 ()
#22 0x00000000100f9394 in .camlList__fold_left_1078 ()
#23 0x0000000010027b18 in .camlCc__close_up_r_1641 ()
#24 0x0000000010027c70 in .camlCc__close_up_1640 ()
#25 0x000000001002684c in .camlCc__assume_rec_1650 ()
#26 0x0000000010026780 in .camlCc__assume_1651 ()
#27 0x00000000100282e0 in .camlCc__assume_1838 ()
#28 0x0000000010009c74 in .camlSat__assume_1404 ()
#29 0x000000001000ad3c in .camlSat__assume_1496 ()
#30 0x0000000010006ecc in .camlFrontend__process_decl_1450 ()
#31 0x0000000010005814 in .caml_curry3_2 ()
#32 0x000000001000620c in .caml_apply2 ()
#33 0x000000001010787c in .camlQueue__fold_1087 ()
#34 0x0000000010107ef8 in .camlQueue__fold_1082 ()
#35 0x0000000010006ad0 in .camlFrontend__fun_1527 ()
#36 0x00000000100f9325 in .camlList__iter_1074 ()
#37 0x00000000100058bd in .caml_curry2_1 ()
#38 0x00000000100f9325 in .camlList__iter_1074 ()
#39 0x0000000010007685 in .camlFrontend__processing_1483 ()
---Type <return> to continue, or q <return> to quit---
#40 0x00000000100068e5 in .camlMain__main_1179 ()
#41 0x000000001000698d in .camlMain__entry ()
#42 0x00000000100047e5 in caml_startup__code_begin ()
#43 0x0000000010147fed in .caml_start_program ()
#44 0x000000001012fcbc in .caml_main ()
#45 0x00000000100030bc in .main ()

Version-Release number of selected component (if applicable):
Comment 1 Jerry James 2011-05-13 00:02:50 EDT
The alt-ergo 0.93 release notes mention "bug fixes" without saying what kind of fixes.  Given the backtrace, I expect this to turn out to be an ocaml bug (or a gcc bug that affects the ocaml binaries), but just in case, can you try alt-ergo-0.93.1-fc15 when it hits the updates-testing repository?
Comment 2 Fedora End Of Life 2012-08-07 10:48:46 EDT
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