[Bug fortran/47296] New: I/O Segfault when running out of file descriptors
burnus at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Jan 14 16:48:00 GMT 2011
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47296
Summary: I/O Segfault when running out of file descriptors
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: burnus@gcc.gnu.org
CC: jvdelisle@gcc.gnu.org
Found at
http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/8843f2317cb565cd#
On Linux, I need to use either much higher numbers (> 1024) or set the number
of file descriptors down using, e.g. ulimit -S -n 20
Valgrind then shows:
Begin assignment unit
** try to connect chosen unit = 27
==26968== Warning: invalid file descriptor 25 in syscall open()
==26968== Use of uninitialised value of size 8
==26968== at 0x4EFC6BF: _gfortrani_new_unit (open.c:509)
==26968== by 0x4EFC994: _gfortran_st_open (open.c:702)
==26968== by 0x400BF5: assignunit.1532 (hj4.f90:38)
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