27 May
2017
27 May
'17
2:44 p.m.
Hello,
On Sat, 27 May 2017 10:51:22 +0200, Waldemar Brodkorb wrote:
Buildroot and OpenADK have samples to create a Linux
system to be
bootup in Qemu system emulation for microblaze architecture.
With gcc 6.3 and 7.1 the samples are not working anymore,
because the Linux system userland does not boot.
Qemu 2.9.0:
Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
(with glibc, musl and uClibc-ng toolchains)
I bisected gcc source code and found the bad commit:
6dcad60c0ef48af584395a40feeb256fb82986a8
Nice, great work!
When reverting the change, gcc 6.3 and 7.1 produces
working
Linux rootfs again.
What can we do about it?
1. Add a revert of this commit in Buildroot for gcc 6.x and 7.x
2. Report the bug upstream, pointing to the problematic commit
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com