#445: [bug] Darwin string buffering segfault in examples/shootout/revcomp.pir
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Reporter: allison | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: none | Version:
Severity: medium | Keywords:
Lang: | Patch:
Platform: |
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examples/shootout/revcomp.pir (which is also t/examples/shootout_17.pir)
is failing with a segfault on MacOS 10.5.6. I would assume that this is
just a broken XCode install on this machine, but it appears that jkeenan
was failing the same test in TT #438. So, I'm skipping this test on darwin
for now. You can duplicate the failure with:
{{{
./parrot examples/shootout/revcomp.pir <
examples/shootout/revcomp.pir_input
}}}
gcc installed with XCode 3.0 gives the following error:
{{{
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x002df3bc
0xffff07c2 in ___memcpy () at
/System/Library/Frameworks/System.framework/PrivateHeaders/i386/cpu_capabilities.h:246
246
/System/Library/Frameworks/System.framework/PrivateHeaders/i386/cpu_capabilities.h:
No such file or directory.
in
/System/Library/Frameworks/System.framework/PrivateHeaders/i386/cpu_capabilities.h
(gdb) bt
#0 0xffff07c2 in ___memcpy () at
/System/Library/Frameworks/System.framework/PrivateHeaders/i386/cpu_capabilities.h:246
#1 0x007ad57b in Parrot_io_write_buffer (interp=0xd01760,
filehandle=0x2a9008, s=0x2ce17c) at src/io/buffer.c:638
#2 0x008723a1 in Parrot_FileHandle_nci_puts (interp=0xd01760,
pmc=0x1e8a0) at filehandle.pmc:518
#3 0x007e540a in Parrot_NCI_invoke (interp=0xd01760, pmc=0x1e8a0,
next=0x0) at nci.pmc:330
#4 0x006c5c0d in Parrot_PCCINVOKE (interp=0xd01760, pmc=0x2a9008,
method_name=0x1006e18, signature=0x9355fc "S->I") at src/call/pcc.c:2848
#5 0x007ab1c9 in Parrot_io_putps (interp=0xd01760, pmc=0x2a9008,
s=0x2ce17c) at src/io/api.c:458
#6 0x0064b19e in Parrot_print_s (cur_opcode=0x104d468, interp=0xd01760)
at io.ops:194
#7 0x00716464 in runops_slow_core (interp=0xd01760, pc=0x104d468) at
src/runops_cores.c:461
#8 0x006c9726 in runops_int (interp=0xd01760, offset=39) at
src/interpreter.c:980
#9 0x006ca1b0 in runops (interp=0xd01760, offs=39) at src/call/ops.c:107
#10 0x006ca469 in runops_args (interp=0xd01760, sub=0x2a8ba0,
obj=0x103a2b0, meth_unused=0x0, sig=0x930ab4 "vP", ap=0xbfffecac "p�*") at
src/call/ops.c:254
#11 0x006cb2ba in Parrot_runops_fromc_args (interp=0xd01760, sub=0x2a8ba0,
sig=0x930ab4 "vP") at src/call/ops.c:321
#12 0x006a764e in Parrot_runcode (interp=0xd01760, argc=1,
argv=0xbfffedc0) at src/embed.c:1011
}}}
On some research, the missing cpu_capabilities.h appears to be a problem
with an (incompletely or badly) upgraded XCode install. Upgrading to XCode
3.1.2 changes the error in gdb to a more obscure and less useful:
{{{
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x002df3f8
0xffff07c2 in ?? ()
(gdb) bt
#0 0xffff07c2 in ?? ()
#1 0xbfffea68 in ?? ()
}}}
Creating a ticket to refer to in the skip.
--
Ticket URL: <https://trac.parrot.org/parrot/ticket/445>
Parrot <https://trac.parrot.org/parrot/>
Parrot Development
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