GNU bug report logs - #25149
md5sum fails with message "Invalid argument" on 4,294,967,295-byte files in FAT32

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Package: coreutils;

Reported by: Jaime Gaspar <mail <at> jaimegaspar.com>

Date: Fri, 9 Dec 2016 17:56:01 UTC

Severity: normal

Tags: notabug

Done: Assaf Gordon <assafgordon <at> gmail.com>

Bug is archived. No further changes may be made.

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From: Jaime Gaspar <mail <at> jaimegaspar.com>
To: Pádraig Brady <p <at> draigbrady.com>, 25149 <at> debbugs.gnu.org
Subject: bug#25149: md5sum fails with message "Invalid argument" on 4, 294, 967, 295-byte files in FAT32
Date: Fri, 9 Dec 2016 10:28:38 -0800

> Can you strace -o /tmp/md5sum.strace md5sum file_2,
> and look towards the end of the strace file to identify the syscall
> returning EINVAL?

It is the seventh and eighth lines below:

      ...
   read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
   read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
   read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
   read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
   read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32767
   read(3, 0x25c12b0, 8192)                = -1 EINVAL (Invalid argument)
   read(3, 0x25c12b0, 8192)                = -1 EINVAL (Invalid argument)
   write(2, "md5sum: ", 8)                 = 8
   write(2, "file_2", 6)                   = 6
   open("/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 4
   fstat(4, {st_mode=S_IFREG|0644, st_size=2995, ...}) = 0
   read(4, "# Locale name alias data base.\n#"..., 4096) = 2995
   read(4, "", 4096)                       = 0
   close(4)                                = 0
   open("/usr/share/locale/en_GB/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
   open("/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
   open("/usr/share/locale-langpack/en_GB/LC_MESSAGES/libc.mo", O_RDONLY) = 4
   fstat(4, {st_mode=S_IFREG|0644, st_size=3537, ...}) = 0
   mmap(NULL, 3537, PROT_READ, MAP_PRIVATE, 4, 0) = 0x7f53d8d0a000
   close(4)                                = 0
   open("/usr/share/locale-langpack/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
   write(2, ": Invalid argument", 18)      = 18
   write(2, "\n", 1)                       = 1
   lseek(3, 0, SEEK_CUR)                   = 4294967295
   close(3)                                = 0
   close(1)                                = 0
   close(2)                                = 0
   exit_group(1)                           = ?
   +++ exited with 1 +++
This bug report was last modified 6 years and 207 days ago.

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