terminate called after throwing an instance of 'std::ios_base::failure'
  what():  basic_filebuf::underflow error reading the file

Program received signal SIGABRT, Aborted.
0x00007ffff4e392a8 in raise () from /lib64/libc.so.6
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(gdb) bt
#0  0x00007ffff4e392a8 in raise () from /lib64/libc.so.6
#1  0x00007ffff4e3a72a in abort () from /lib64/libc.so.6
#2  0x00007fffebffd72d in __gnu_cxx::__verbose_terminate_handler() ()
   from /usr/lib64/libstdc++.so.6
#3  0x00007fffebffb796 in ?? () from /usr/lib64/libstdc++.so.6
#4  0x00007fffebffb7e1 in std::terminate() () from /usr/lib64/libstdc++.so.6
#5  0x00007fffebffb9f8 in __cxa_throw () from /usr/lib64/libstdc++.so.6
#6  0x00007fffec0238b6 in std::__throw_ios_failure(char const*) ()
   from /usr/lib64/libstdc++.so.6
#7  0x00007fffec056958 in std::basic_filebuf<char, std::char_traits<char> >::underflow() () from /usr/lib64/libstdc++.so.6
#8  0x00007fffec061b59 in std::istream::sentry::sentry(std::istream&, bool) ()
   from /usr/lib64/libstdc++.so.6
#9  0x00007fffec061d1f in std::istream::operator>>(int&) ()
   from /usr/lib64/libstdc++.so.6
#10 0x00007fffec2f3305 in sysfs_status::update() ()
   from /usr/lib64/gkrellm2/plugins/ibam-krell.so
#11 0x00007fffec2eec92 in update_plugin ()
   from /usr/lib64/gkrellm2/plugins/ibam-krell.so
#12 0x000000000041748d in ?? ()
#13 0x00007ffff6654963 in ?? () from /lib64/libglib-2.0.so.0
#14 0x00007ffff6653f2a in g_main_context_dispatch ()
   from /lib64/libglib-2.0.so.0
#15 0x00007ffff66542a8 in ?? () from /lib64/libglib-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#16 0x00007ffff66545c2 in g_main_loop_run () from /lib64/libglib-2.0.so.0
#17 0x00007ffff78cabd7 in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
#18 0x00000000004195b3 in main ()