From owner-freebsd-bugs@freebsd.org Tue Dec 29 03:45:26 2015 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id ED290A5413E for ; Tue, 29 Dec 2015 03:45:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C4B041506 for ; Tue, 29 Dec 2015 03:45:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id tBT3jQ50088457 for ; Tue, 29 Dec 2015 03:45:26 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 205684] putc function coredump Date: Tue, 29 Dec 2015 03:45:26 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: gnu X-Bugzilla-Version: 10.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: snrtcel@126.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cc attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Dec 2015 03:45:27 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D205684 Bug ID: 205684 Summary: putc function coredump Product: Base System Version: 10.2-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: gnu Assignee: freebsd-bugs@FreeBSD.org Reporter: snrtcel@126.com CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org Created attachment 164798 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D164798&action= =3Dedit code, coredump files mine system infomation as below: FreeBSD y2ghost.bsd 10.2-RELEASE FreeBSD 10.2-RELEASE #0 r286666: Wed Aug 12 15:26:37 UTC 2015 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GEN= ERIC amd64 mine code as beblow: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D #include int main(int ac, char *av[]) { int c =3D 0; while (1) { c =3D getc(stdin); if (EOF =3D=3D c) { break; } c =3D putc(c, stdout); if (EOF =3D=3D c) { break; } } if (0 !=3D ferror(stdin)) { printf("%s\n", "input error"); } return 0; } =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D then cc -g xx.c ./a.out=20 asdfkaasdfds^\[1] 1485 quit (core dumped) ./a.out I press ctrl+\, then a.out coredump, the frame infomation as beblow Loaded symbols for /libexec/ld-elf.so.1 #0 0x0000000800964f08 in _read () from /lib/libc.so.7 (gdb) bt #0 0x0000000800964f08 in _read () from /lib/libc.so.7 #1 0x0000000800964840 in memmove () from /lib/libc.so.7 #2 0x000000080094be47 in __srget () from /lib/libc.so.7 #3 0x000000080094bcfe in __srget () from /lib/libc.so.7 #4 0x00000000004009db in main (ac=3D1, av=3D0x7fffffffeb68) at y.c:7 (gdb) l 7 c =3D getc(stdin); 8 if (EOF =3D=3D c) { 9 break; 10 } 11=20=20=20=20=20=20 12 c =3D putc(c, stdout); 13 if (EOF =3D=3D c) { 14 break; 15 } 16 } --=20 You are receiving this mail because: You are the assignee for the bug.=