On 2018-01-02 12:56:11 [+0100], Daniel Wagner wrote:

The release is based on the Linux 4.4.75-rt88 version. That is I
applied the -rt88 patch on the 4.4.75-cip6 kernel and merged in all
CIP releases.

what is cip6?

https://ci-rt.linutronix.de/RT-Test/kbuild.jsp?id=112

Some of the builds are failing (allmodconfig), though it
doesn't look cip-rt specific, eg:

kernel/utilities/compiletest-runner@2/build/../include/linux/compiler.h:484 call to ‘__compiletime_assert_150’ declared with attribute error: BUILD_BUG_ON failed: hw_flag_names[NUM_IEEE80211_HW_FLAGS] != (void *)0x1

Not sure how to handle those. IIRC, we don't support allmodconfig.

yes but adding
68920c973254 ("net/mac80211/debugfs.c: prevent build failure with
CONFIG_UBSAN=y")

could solve the issue.

Sebastian