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Message-ID: <52080B35.5040106@jsbc.cc>
Date: Sun, 11 Aug 2013 15:07:49 -0700
From: Jim Burwell <jimb AT jsbc DOT cc>
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To: The Cygwin Mailing List <cygwin AT cygwin DOT com>
Subject: [64-bit]  egrep core dumps when it opens binary files
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64 bit egrep gets a segfault and dumps core when it opens binary files:

    {jimb AT T510jimb/pty1}~> egrep -vil blarg *
    egrep: archive: Is a directory
    argle
    b.pyc
    bahz
    baktmp
    bargle
    baz
    bbcase
    Segmentation fault (core dumped)

    {jimb AT T510jimb/pty1}~> ls -1 * | head -15
    argle
    b.pyc
    bahz
    baktmp
    bargle
    baz
    bbcase
    bigcaps.pcf.gz
    ^^^ dumps when it hits this file

    Core dump file:
    {jimb AT T510jimb/pty1}~> cat egrep.exe.stackdump
    Exception: STATUS_ACCESS_VIOLATION at rip=00077C72F7E
    rax=00000006000743BA rbx=00000006000743BA rcx=0000000600090000
    rdx=0000000000000000 rsi=0000000600073F79 rdi=00000000000000E9
    r8 =0000000000000039 r9 =03FFFFFFFFFFF90E r10=000000000000019D
    r11=0000000000000002 r12=000000000022A120 r13=000000060005062C
    r14=0000000000000003 r15=0000000000000000
    rbp=0000000600050976 rsp=000000000022A058
    program=C:\cygwin64\bin\egrep.exe, pid 9056, thread main
    cs=0033 ds=002B es=002B fs=0053 gs=002B ss=002B
    Stack trace:
    Frame        Function    Args
    00600050976  00077C72F7E (0000022A028, 001801CADC0, 0000022A120,
    006000743BA)
    00600050976  00077B4B6C6 (000000000E9, 00600050976, 0000022A120,
    006000743B9)
    00600050976  001800C4D27 (00000000000, 00000000000, 00000000000,
    0000022A11E)
    00600050976  00100405900 (00000000000, 00600050000, 0000022A128,
    00000010000)
    00600050540  00100404298 (00000000436, 00600050000, 001801130CB,
    00000010000)
    0000022A2F8  0010040277C (0000022A5B0, 000FFFFFFFE, 00000000000,
    00000000002)
    00000000003  00100402E62 (005EE2D8180, 00077BA003C, 00077B05670,
    00000000000)
    0000022A6C0  00100425A9D (7FEFDB6DC4A, 000002AFB40, 00180041C76,
    00000000000)
    0000022AB80  0018004835B (00000000000, 00000000000, 00000000000,
    00000000000)
    00000000000  001800461BB (00000000000, 00000000000, 00000000000,
    00000000000)
    00000000000  0018004637F (00000000000, 00000000000, 00000000000,
    00000000000)
    00000000000  001004243E1 (00000000000, 00000000000, 00000000000,
    00000000000)
    00000000000  00100401010 (00000000000, 00000000000, 00000000000,
    00000000000)
    00000000000  00077B1652D (00000000000, 00000000000, 00000000000,
    00077B99300)
    00000000000  00077C4C521 (00000000000, 00000000000, 00000000000,
    00077B99300)
    End of stack trace


- Jim


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