Source: linux Version: 4.9.82-1+deb9u2 Severity: critical Justification: causes serious data corruption
DSA has installed the latest security kernel (4.9.82-1+deb9u2) on the Debian POWER8 machines running ppc64el. While they boot correctly, then programs segfault randomly (apt, sbuild, systemd, etc...). Passing no_rfi_flush to the command line does not change anything. Looking more in details, things looks scarying as some code actually get wrongly executed. Here are some build logs examples: - https://buildd.debian.org/status/fetch.php?pkg=python-msgpack&arch=ppc64el&ver=0.5.1-1&stamp=1519399908&raw=0 - https://buildd.debian.org/status/fetch.php?pkg=python-msgpack&arch=ppc64el&ver=0.5.1-1&stamp=1519396907&raw=0 - https://buildd.debian.org/status/fetch.php?pkg=tk8.5&arch=ppc64el&ver=8.5.19-3&stamp=1519362938&raw=0 While in the above case the packages fail to build from source, I guess there are also some cases of undetected corruptions. I'll try to run the 4.9.80-2 kernel at some point to narrow down the issue.