Date: Tue, 13 Aug 2013 13:50:01 GMT From: "Rafal W." <kenorb@gmail.com> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/181263: grep crashes at memchr/__sfvwrite when using colors Message-ID: <201308131350.r7DDo13u022460@freefall.freebsd.org>
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The following reply was made to PR bin/181263; it has been noted by GNATS.
From: "Rafal W." <kenorb@gmail.com>
To: bug-followup@freebsd.org
Cc: Rafal Wieczorek <kenorb@gmail.com>
Subject: Re: bin/181263: grep crashes at memchr/__sfvwrite when using colors
Date: Tue, 13 Aug 2013 14:46:58 +0100
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Backtraces:
Unix:
Program received signal SIGSEGV, Segmentation fault.
0x0000000801007ff2 in memchr (s=0x61167a, c=10, n=18446744073707490297)
at /usr/src/lib/libc/string/memchr.c:48
48 if (*p++ == (unsigned char)c)
(gdb) bt
#0 0x0000000801007ff2 in memchr (s=0x61167a, c=10,
n=18446744073707490297) at /usr/src/lib/libc/string/memchr.c:48
#1 0x0000000801007b03 in __sfvwrite (fp=0x801247770, uio=0x7fffffffd8f0)
at /usr/src/lib/libc/stdio/fvwrite.c:170
#2 0x0000000801007698 in fwrite (buf=0x608c03,
size=18446744073709551606, count=1, fp=0x801247770)
at /usr/src/lib/libc/stdio/fwrite.c:95
#3 0x0000000000405498 in printline (line=0x7fffffffdb70, sep=58,
matches=0x7fffffffd990, m=9)
at /usr/src/usr.bin/grep/util.c:500
#4 0x0000000000404f51 in procline (l=0x7fffffffdb70, nottext=0) at
/usr/src/usr.bin/grep/util.c:381
OSX:
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_c.dylib 0x00007fff8a8da1b3 memchr + 15
1 libsystem_c.dylib 0x00007fff8a90b45a __sfvwrite + 578
2 libsystem_c.dylib 0x00007fff8a90b861 fwrite + 114
3 grep 0x000000010a4a3138 0x10a4a0000 + 12600
4 grep 0x000000010a4a2988 0x10a4a0000 + 10632
5 grep 0x000000010a4a1c28 0x10a4a0000 + 7208
6 libdyld.dylib 0x00007fff8daf77e1 start + 1
--bcaec520f4d5be5d4e04e3d47ac5
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<div dir=3D"ltr">Backtraces:<br><br>Unix:<br><br><font face=3D"courier new,=
monospace">Program received signal SIGSEGV, Segmentation fault.<br>=A0 0x0=
000000801007ff2 in memchr (s=3D0x61167a, c=3D10, n=3D18446744073707490297) =
at /usr/src/lib/libc/string/memchr.c:48<br>
=A0 48 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0if (*p++ =
=3D=3D (unsigned char)c)<br>=A0 (gdb) bt<br>=A0 #0 =A00x0000000801007ff2 in=
memchr (s=3D0x61167a, c=3D10, n=3D18446744073707490297) at /usr/src/lib/li=
bc/string/memchr.c:48<br>=A0 #1 =A00x0000000801007b03 in __sfvwrite (fp=3D0=
x801247770, uio=3D0x7fffffffd8f0) at /usr/src/lib/libc/stdio/fvwrite.c:170<=
br>
=A0 #2 =A00x0000000801007698 in fwrite (buf=3D0x608c03, size=3D184467440737=
09551606, count=3D1, fp=3D0x801247770)<br>=A0 =A0 =A0 at /usr/src/lib/libc/=
stdio/fwrite.c:95<br>=A0 #3 =A00x0000000000405498 in printline (line=3D0x7f=
ffffffdb70, sep=3D58, matches=3D0x7fffffffd990, m=3D9)<br>
=A0 =A0 =A0 at /usr/src/usr.bin/grep/util.c:500<br>=A0 #4 =A00x000000000040=
4f51 in procline (l=3D0x7fffffffdb70, nottext=3D0) at /usr/src/usr.bin/grep=
/util.c:381</font><div><br>OSX:<br><font face=3D"courier new, monospace">Th=
read 0 Crashed:: Dispatch queue: com.apple.main-thread<br>
0 =A0 libsystem_c.dylib =A0 =A0 =A0 =A0 =A0 =A0 =A0 0x00007fff8a8da1b3 memc=
hr + 15<br>1 =A0 libsystem_c.dylib =A0 =A0 =A0 =A0 =A0 =A0 =A0 0x00007fff8a=
90b45a __sfvwrite + 578<br>2 =A0 libsystem_c.dylib =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 0x00007fff8a90b861 fwrite + 114<br>3 =A0 grep =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A00x000000010a4a3138 0x10a4a0000 + 12600<br>
4 =A0 grep =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A00x0000000=
10a4a2988 0x10a4a0000 + 10632<br>5 =A0 grep =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=
=A0 =A0 =A0 =A0 =A0 =A00x000000010a4a1c28 0x10a4a0000 + 7208<br>6 =A0 libd=
yld.dylib =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 0x00007fff8daf77e1 start + 1<=
/font></div>
</div>
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