[Bug other/124137] New: [16 Regression] build doesn't finish after 4h+

[doko at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124137

            Bug ID: 124137
           Summary: [16 Regression] build doesn't finish after 4h+
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

Created attachment 63684
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63684&action=edit
build script

seen with trunk 20260210 while looking at an ICE while building the onednn
package (PR124136).  At least two processes don't terminate, the package works
fine with GCC 15.


Configured with: -v
        
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2,rust,cobol,algol68
         --prefix=/usr
         --with-gcc-major-version-only
         --program-suffix=-16
         --program-prefix=x86_64-linux-gnu-
         --enable-shared
         --enable-linker-build-id
         --libexecdir=/usr/libexec
         --without-included-gettext
         --enable-threads=posix
         --libdir=/usr/lib
         --enable-nls
         --enable-bootstrap
         --enable-clocale=gnu
         --enable-libstdcxx-debug
         --enable-libstdcxx-time=yes
         --with-default-libstdcxx-abi=new
         --enable-libstdcxx-backtrace
         --enable-gnu-unique-object
         --disable-vtable-verify
         --enable-plugin
         --enable-default-pie
         --with-system-zlib
         --enable-libphobos-checking=release
         --with-target-system-zlib=auto
         --enable-objc-gc=auto
         --enable-multiarch
         --disable-werror
         --enable-cet
         --with-arch-32=i686
         --with-abi=m64
         --with-multilib-list=m32,m64,mx32
         --enable-multilib
         --with-tune=generic
        
--enable-offload-targets=nvptx-none=/<<PKGBUILDDIR>>/debian/tmp-nvptx/usr,amdgcn-amdhsa=/<<PKGBUILDDIR>>/debian/tmp-gcn/usr
         --enable-offload-defaulted
         --without-cuda-driver
         --enable-checking=yes,extra,rtl
         --build=x86_64-linux-gnu
         --host=x86_64-linux-gnu
         --target=x86_64-linux-gnu
         --with-build-config=bootstrap-lto-lean
         --enable-link-serialization=2