From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031015 Firebird/0.7 Description of problem: This problem was encountered on a RH9 system running glibc-2.3.2-27.9 Intel processor. In a sample C++ application a call to access followed by a call to <fstream object>::open fails. An strace demonstrates that the open call is never executed. The same code executed on a RH7.3 system running glibc-2.2.5-43 performs as expected. Refer to the attached code that was executed on both systems: After building on RH9, the output looks like: [sbyrne@sbyrne1 glibctest]$ strace -e trace=file ./test dummy.txt execve("./test", ["./test", "dummy.txt"], [/* 35 vars */]) = 0 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=64967, ...}) = 0 open("/usr/lib/libstdc++.so.5", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=710608, ...}) = 0 open("/lib/tls/libm.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=212020, ...}) = 0 open("/lib/libgcc_s.so.1", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=30324, ...}) = 0 open("/lib/tls/libc.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=1536292, ...}) = 0 access("dummy.txt", F_OK) = 0 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 7), ...}) = 0 fd good after open: 0 fd good after clear: 1 fd good after seek to end: 0 ./test: bad input: dummy.txt After building on RH7.3 the output looks like: [sbyrne@sam glibctest]$ strace -e trace=file ./test dummy.txt execve("./test", ["./test", "dummy.txt"], [/* 29 vars */]) = 0 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=109048, ...}) = 0 open("/usr/lib/libstdc++-libc6.2-2.so.3", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0555, st_size=426442, ...}) = 0 open("/lib/i686/libm.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=173359, ...}) = 0 open("/lib/i686/libc.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=1402035, ...}) = 0 access("dummy.txt", F_OK) = 0 open("dummy.txt", O_RDWR|O_APPEND|O_CREAT|O_LARGEFILE, 0664) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=16, ...}) = 0 fstat64(3, {st_mode=S_IFREG|0644, st_size=16, ...}) = 0 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0 fd good after open: 1 fd good after clear: 1 fstat64(3, {st_mode=S_IFREG|0644, st_size=16, ...}) = 0 fd good after seek to end: 1 Version-Release number of selected component (if applicable): glibc-2.3.2-27.9 How reproducible: Always Steps to Reproduce: 1.compile the attached file on a system running glibc-2.2.5-43 2.compile the attached file on a system running glibc-2.3.2-27.9 3.run the produced binary on both systems passing in a file containing a couple lines of text. 4.the system using glibc-2.3.2-27.9 will fail to execute the code properly. Actual Results: [sbyrne@sbyrne1 glibctest]$ strace -e trace=file ./test dummy.txt execve("./test", ["./test", "dummy.txt"], [/* 35 vars */]) = 0 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=64967, ...}) = 0 open("/usr/lib/libstdc++.so.5", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=710608, ...}) = 0 open("/lib/tls/libm.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=212020, ...}) = 0 open("/lib/libgcc_s.so.1", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=30324, ...}) = 0 open("/lib/tls/libc.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=1536292, ...}) = 0 access("dummy.txt", F_OK) = 0 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 7), ...}) = 0 fd good after open: 0 fd good after clear: 1 fd good after seek to end: 0 ./test: bad input: dummy.txt Expected Results: [sbyrne@sam glibctest]$ strace -e trace=file ./test dummy.txt execve("./test", ["./test", "dummy.txt"], [/* 29 vars */]) = 0 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=109048, ...}) = 0 open("/usr/lib/libstdc++-libc6.2-2.so.3", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0555, st_size=426442, ...}) = 0 open("/lib/i686/libm.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=173359, ...}) = 0 open("/lib/i686/libc.so.6", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0755, st_size=1402035, ...}) = 0 access("dummy.txt", F_OK) = 0 open("dummy.txt", O_RDWR|O_APPEND|O_CREAT|O_LARGEFILE, 0664) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=16, ...}) = 0 fstat64(3, {st_mode=S_IFREG|0644, st_size=16, ...}) = 0 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0 fd good after open: 1 fd good after clear: 1 fstat64(3, {st_mode=S_IFREG|0644, st_size=16, ...}) = 0 fd good after seek to end: 1 Additional info:
Created attachment 96069 [details] a simple test C++ application
This has nothing to do with glibc, but with different libstdc++.
Red Hat apologizes that these issues have not been resolved yet. We do want to make sure that no important bugs slip through the cracks. Red Hat Linux 7.3 and Red Hat Linux 9 are no longer supported by Red Hat, Inc. They are maintained by the Fedora Legacy project (http://www.fedoralegacy.org/) for security updates only. If this is a security issue, please reassign to the 'Fedora Legacy' product in bugzilla. Please note that Legacy security update support for these products will stop on December 31st, 2006. If this is not a security issue, please check if this issue is still present in a current Fedora Core release. If so, please change the product and version to match, and check the box indicating that the requested information has been provided. If you are currently still running Red Hat Linux 7.3 or 9, please note that Fedora Legacy security update support for these products will stop on December 31st, 2006. You are strongly advised to upgrade to a current Fedora Core release or Red Hat Enterprise Linux or comparable. Some information on which option may be right for you is available at http://www.redhat.com/rhel/migrate/redhatlinux/. Any bug still open against Red Hat Linux 7.3 or 9 at the end of 2006 will be closed 'CANTFIX'. Again, if this bug still exists in a current release, or is a security issue, please change the product as necessary. We thank you for your help, and apologize again that we haven't handled these issues to this point.
Red Hat Linux 7.3 and Red Hat Linux 9 are no longer supported by Red Hat, Inc. f you are currently still running Red Hat Linux 7.3 or 9, you are strongly advised to upgrade to a current Fedora Core release or Red Hat Enterprise Linux or comparable. Some information on which option may be right for you is available at http://www.redhat.com/rhel/migrate/redhatlinux/. Closing as CANTFIX.