Package: gcc-6 Version: 6.2.1-5 Severity: normal Dear Maintainer,
while testing latest 4.9-rc6+ git kernels, I noticed that the kernel failed to boot very early (only Booting the kernel was displayed) on multiple machines. Not that this is not about passing the pie flags to gcc or stack protector options breaking compilation. That one was worked around in current development version of the kernel, and for bisecting I had to patch the kernel by hand. The patterns so far: 6.2.0-9 is creating working kernels on all computers. 6.2.1-3 and 6.2.1-5 are OK on at least two 32-bit x86 machines tested so far (Pentium 4 and Athlon MP). 6.2.1-4 and 6.2.1-5 create nonbootable kernels on all x86-64 machines tested so far (P4 era 64-bit Xeons, 51xx era Xeons, Opteron 2xx, i5 660 at least). Kernel configurations vary - they are available when I go to the machines physically to restart them to working kernels (maybe Monday) but differ a lot between the machines (all are optimized for specific CPU and hardware set for test coverage) so the configuration does nto seem to be too important. -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-rc6-00157-g16ae16c (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages gcc-6 depends on: ii binutils 2.27.51.20161124-1 ii cpp-6 6.2.1-5 ii gcc-6-base 6.2.1-5 ii libc6 2.24-6 ii libcc1-0 6.2.1-5 ii libgcc-6-dev 6.2.1-5 ii libgcc1 1:6.2.1-5 ii libgmp10 2:6.1.1+dfsg-1 ii libisl15 0.17.1-1 ii libmpc3 1.0.3-1 ii libmpfr4 3.1.5-1 ii libstdc++6 6.2.1-5 ii zlib1g 1:1.2.8.dfsg-2+b3 Versions of packages gcc-6 recommends: ii libc6-dev 2.24-6 Versions of packages gcc-6 suggests: pn gcc-6-doc <none> pn gcc-6-locales <none> pn gcc-6-multilib <none> pn libasan3-dbg <none> pn libatomic1-dbg <none> pn libcilkrts5-dbg <none> pn libgcc1-dbg <none> pn libgomp1-dbg <none> pn libitm1-dbg <none> pn liblsan0-dbg <none> pn libmpx2-dbg <none> pn libquadmath0-dbg <none> pn libtsan0-dbg <none> pn libubsan0-dbg <none> -- no debconf information

