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DescriptionCedric Buissart
2017-06-29 11:52:49 UTC
Description of problem:
Looking at the 2 fmt functions cmd_output() and cmd_foreach(), they don't seem to close their file descriptor, and references to these descriptors seem to be loss.
I am unsure if it is expected or not.
Version-Release number of selected component (if applicable): jose-8-1.el7.x86_64, but upstream doesn't seem to have a fix yet either.
How reproducible: 100%
Steps to Reproduce:
$ valgrind --track-fds=yes jose fmt -j- -O -o foo.file -o bar.file -f baz.txt -f qux.file <<< '{ "pin": "tang", "url": "http://localhost" }'
[...]
==26757== FILE DESCRIPTORS: 8 open at exit.
==26757== Open file descriptor 7: qux.file
==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81)
==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229)
==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339)
==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90)
==26757== by 0x408D79: cmd_foreach (fmt.c:101)
==26757== by 0x408D79: jcmd_fmt (fmt.c:665)
==26757== by 0x402760: main (jose.c:500)
==26757==
==26757== Open file descriptor 6: baz.txt
==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81)
==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229)
==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339)
==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90)
==26757== by 0x408D79: cmd_foreach (fmt.c:101)
==26757== by 0x408D79: jcmd_fmt (fmt.c:665)
==26757== by 0x402760: main (jose.c:500)
==26757==
==26757== Open file descriptor 5: bar.file
==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81)
==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229)
==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339)
==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90)
==26757== by 0x408EE4: cmd_output (fmt.c:69)
==26757== by 0x408EE4: jcmd_fmt (fmt.c:664)
==26757== by 0x402760: main (jose.c:500)
==26757==
==26757== Open file descriptor 4: foo.file
==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81)
==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229)
==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339)
==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90)
==26757== by 0x408EE4: cmd_output (fmt.c:69)
==26757== by 0x408EE4: jcmd_fmt (fmt.c:664)
==26757== by 0x402760: main (jose.c:500)
[...]
Actual results: the fd 4 to 8 (foo, bar, baz & qux) are still opened at exit.
Expected results: jose to keep its fd table clean ☺
Comment 2Nathaniel McCallum
2017-06-29 13:13:16 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:0819
Description of problem: Looking at the 2 fmt functions cmd_output() and cmd_foreach(), they don't seem to close their file descriptor, and references to these descriptors seem to be loss. I am unsure if it is expected or not. Version-Release number of selected component (if applicable): jose-8-1.el7.x86_64, but upstream doesn't seem to have a fix yet either. How reproducible: 100% Steps to Reproduce: $ valgrind --track-fds=yes jose fmt -j- -O -o foo.file -o bar.file -f baz.txt -f qux.file <<< '{ "pin": "tang", "url": "http://localhost" }' [...] ==26757== FILE DESCRIPTORS: 8 open at exit. ==26757== Open file descriptor 7: qux.file ==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81) ==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229) ==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339) ==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90) ==26757== by 0x408D79: cmd_foreach (fmt.c:101) ==26757== by 0x408D79: jcmd_fmt (fmt.c:665) ==26757== by 0x402760: main (jose.c:500) ==26757== ==26757== Open file descriptor 6: baz.txt ==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81) ==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229) ==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339) ==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90) ==26757== by 0x408D79: cmd_foreach (fmt.c:101) ==26757== by 0x408D79: jcmd_fmt (fmt.c:665) ==26757== by 0x402760: main (jose.c:500) ==26757== ==26757== Open file descriptor 5: bar.file ==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81) ==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229) ==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339) ==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90) ==26757== by 0x408EE4: cmd_output (fmt.c:69) ==26757== by 0x408EE4: jcmd_fmt (fmt.c:664) ==26757== by 0x402760: main (jose.c:500) ==26757== ==26757== Open file descriptor 4: foo.file ==26757== at 0x5D78790: __open_nocancel (syscall-template.S:81) ==26757== by 0x5D08DDF: _IO_file_open (fileops.c:229) ==26757== by 0x5D08DDF: _IO_file_fopen@@GLIBC_2.2.5 (fileops.c:339) ==26757== by 0x5CFD4B3: __fopen_internal (iofopen.c:90) ==26757== by 0x408EE4: cmd_output (fmt.c:69) ==26757== by 0x408EE4: jcmd_fmt (fmt.c:664) ==26757== by 0x402760: main (jose.c:500) [...] Actual results: the fd 4 to 8 (foo, bar, baz & qux) are still opened at exit. Expected results: jose to keep its fd table clean ☺