Ceph » RADOS

Is Jenkins using Fedora? If not I'd suggest we create a bug against the appropriate OS and component. I suspect this is developer-toolset 7 on CentOS? If so I'd suggest a bug against it and the corresponding rhel also if rhel is similarly afflicted. This is just a tracker bug to track the compiler issue. I have no insight into the build system Jenkins uses I'm afraid.

# cat /etc/os-release
NAME="CentOS Linux" 
VERSION="7 (Core)" 
ID="centos" 
ID_LIKE="rhel fedora" 
VERSION_ID="7" 
PRETTY_NAME="CentOS Linux 7 (Core)" 
ANSI_COLOR="0;31" 
CPE_NAME="cpe:/o:centos:centos:7" 
HOME_URL="https://www.centos.org/" 
BUG_REPORT_URL="https://bugs.centos.org/" 

CENTOS_MANTISBT_PROJECT="CentOS-7" 
CENTOS_MANTISBT_PROJECT_VERSION="7" 
REDHAT_SUPPORT_PRODUCT="centos" 
REDHAT_SUPPORT_PRODUCT_VERSION="7" 

# g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-7/root/usr/libexec/gcc/x86_64-redhat-linux/7/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,lto --prefix=/opt/rh/devtoolset-7/root/usr --mandir=/opt/rh/devtoolset-7/root/usr/share/man --infodir=/opt/rh/devtoolset-7/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --enable-plugin --with-linker-hash-style=gnu --enable-initfini-array --with-default-libstdcxx-abi=gcc4-compatible --with-isl=/builddir/build/BUILD/gcc-7.2.1-20170829/obj-x86_64-redhat-linux/isl-install --enable-libmpx --enable-gnu-indirect-function --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 7.2.1 20170829 (Red Hat 7.2.1-1) (GCC)

# rpm -qa devtoolset-7-gcc-c++
devtoolset-7-gcc-c++-7.2.1-1.el7.x86_64

# cat << EOF >reproducer.ii
template <typename a> struct b { a c; };
template <typename d> struct e { d *operator->(); };
template <typename d> class f {
public:
  typedef e<d> g;
};
class h {
protected:
  h(int);
};
class j {
public:
  virtual ~j();
  struct k : h {
    int l;
    k() : h(l) {
      struct m : j {
        m() {}
      };
    }
  };
};
struct n {
  n() {
    for (f<b<b<j *>>>::g i;;)
      delete i->c.c;
  }
};
void o() { n(); }
EOF

#  g++ -c -O2 -g reproducer.ii
reproducer.ii: In destructor ‘virtual j::k::k()::m::~m()’:
reproducer.ii:17:14: internal compiler error: in force_type_die, at dwarf2out.c:25099
       struct m : j {
              ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/cc9yXqgf.out file, please attach this to your bugreport.

Confirmed on CentOS with latest devtoolset. Checking RHEL.

# cat /etc/os-release
NAME="Red Hat Enterprise Linux Server" 
VERSION="7.4 (Maipo)" 
ID="rhel" 
ID_LIKE="fedora" 
VARIANT="Server" 
VARIANT_ID="server" 
VERSION_ID="7.4" 
PRETTY_NAME="Employee SKU" 
ANSI_COLOR="0;31" 
CPE_NAME="cpe:/o:redhat:enterprise_linux:7.4:GA:server" 
HOME_URL="https://www.redhat.com/" 
BUG_REPORT_URL="https://bugzilla.redhat.com/" 

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 7" 
REDHAT_BUGZILLA_PRODUCT_VERSION=7.4
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux" 
REDHAT_SUPPORT_PRODUCT_VERSION="7.4" 

# g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-7/root/usr/libexec/gcc/x86_64-redhat-linux/7/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,lto --prefix=/opt/rh/devtoolset-7/root/usr --mandir=/opt/rh/devtoolset-7/root/usr/share/man --infodir=/opt/rh/devtoolset-7/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --enable-plugin --with-linker-hash-style=gnu --enable-initfini-array --with-default-libstdcxx-abi=gcc4-compatible --with-isl=/builddir/build/BUILD/gcc-7.2.1-20170829/obj-x86_64-redhat-linux/isl-install --enable-libmpx --enable-gnu-indirect-function --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 7.2.1 20170829 (Red Hat 7.2.1-1) (GCC)

# rpm -qa devtoolset-7-gcc-c++
devtoolset-7-gcc-c++-7.2.1-1.el7.x86_64

# cat << EOF >reproducer.ii
template <typename a> struct b { a c; };
template <typename d> struct e { d *operator->(); };
template <typename d> class f {
public:
  typedef e<d> g;
};
class h {
protected:
  h(int);
};
class j {
public:
  virtual ~j();
  struct k : h {
    int l;
    k() : h(l) {
      struct m : j {
        m() {}
      };
    }
  };
};
struct n {
  n() {
    for (f<b<b<j *>>>::g i;;)
      delete i->c.c;
  }
};
void o() { n(); }
EOF

# g++ -c -O2 -g reproducer.ii
reproducer.ii: In destructor ‘virtual j::k::k()::m::~m()’:
reproducer.ii:17:14: internal compiler error: in force_type_die, at dwarf2out.c:25099
       struct m : j {
              ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccrRQS6V.out file, please attach this to your bugreport.

Confirmed on RHEL 7.4 and new bug created against Red Hat Developer Toolset https://bugzilla.redhat.com/show_bug.cgi?id=1525304

please see https://github.com/ceph/ceph/pull/19426. that's why it popped up recently.

Nathan, to downgrade the GCC in building servers is an option, but it complicates our complicated building process, to be specific, the xenial building servers are shared by master (mimic-dev1) and jewel, the latter requires an older GCC, but the former wants GCC-7. so we need to revert the change i made in install-deps.sh for master after the building process completes. that's a pain.

i'd suggest just work around this issue in jewel.

will prepare a patch.

The build in https://github.com/ceph/ceph/pull/19457 was done on Ubuntu :(

@Kefu Chai: thanks for the quick fix!

How does https://github.com/ceph/ceph/pull/19461 fix the bug in gcc7?

For DTS this should be fixed in the 7.1 release.

Fixed by gcc-7.3.1-2.fc26 gcc-7.3.1-2.fc27 in fc27

https://access.redhat.com/errata/RHBA-2018:1293