Package: libc6 Version: 2.10.2-6 Severity: normal Here's a stack-trace: <quote src="gdb">
(gdb) run Starting program: /disk/home/eddy/work/mine/toys/sscanferange Program received signal SIGSEGV, Segmentation fault. 0xb7ee1d2d in _IO_vfscanf_internal (s=0xbfdff2dc, format=0x8048540 "%llu", argptr=0xbfdff3a8 "žóÿ¿", errp=0x0) at vfscanf.c:1760 1760 vfscanf.c: No such file or directory. in vfscanf.c (gdb) bt #0 0xb7ee1d2d in _IO_vfscanf_internal (s=0xbfdff2dc, format=0x8048540 "%llu", argptr=0xbfdff3a8 "žóÿ¿", errp=0x0) at vfscanf.c:1760 #1 0xb7ee79c5 in *__GI___isoc99_vsscanf (string=0xbfdff3b7 '9' <repeats 200 times>..., format=0x8048540 "%llu", args=0xbfdff3a8 "žóÿ¿") at isoc99_vsscanf.c:44 #2 0xb7ee791f in __isoc99_sscanf (s=0xbfdff3b7 '9' <repeats 200 times>..., format=0x8048540 "%llu") at isoc99_sscanf.c:33 #3 0x08048474 in main () at sscanferange.c:11 </quote> produced by this source <file name="sscanferange.c"> #include <stdio.h> #include <string.h> #include <errno.h> #define SIZE 0x200000 // crashes; 0x1fffff is ok int main() { unsigned long long val; char buf[SIZE + 1]; memset(buf, '9', SIZE); buf[SIZE] = '\0'; errno = 0; return 1 != sscanf(buf, "%llu", &val) || errno != ERANGE; } </file> There appears to be a two megabyte limit on endurable length of the string of digits. -- System Information: Debian Release: squeeze/sid APT prefers testing APT policy: (500, 'testing'), (500, 'stable') Architecture: i386 (i686) Kernel: Linux 2.6.30-2-686 (SMP w/2 CPU cores) Locale: LANG=en_GB.ISO-8859-15, LC_CTYPE=en_GB.ISO-8859-15 (charmap=ISO-8859-15) Shell: /bin/sh linked to /bin/bash Versions of packages libc6 depends on: ii libc-bin 2.10.2-6 Embedded GNU C Library: Binaries ii libgcc1 1:4.4.2-9 GCC support library Versions of packages libc6 recommends: ii libc6-i686 2.10.2-6 GNU C Library: Shared libraries [i Versions of packages libc6 suggests: ii debconf [debconf-2.0] 1.5.28 Debian configuration management sy ii glibc-doc 2.10.2-6 Embedded GNU C Library: Documentat ii locales 2.10.2-6 Embedded GNU C Library: National L -- debconf information: * glibc/upgrade: true * glibc/disable-screensaver: glibc/restart-failed: * glibc/restart-services: rsync openbsd-inetd nis exim4 cups cron atd xdm -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100309153906.19947.42081.report...@whorl