On Sat, Jul 21, 2018 at 11:30:27AM +0800, kbuild test robot wrote:
Hi Rodrigo,
It's probably a bug fix that unveils the link errors.
tree: git://anongit.freedesktop.org/drm/drm-tip drm-tip head: 20532651221ed29af16e2db0a7ec8b9bd482c994 commit: 315fade0d9f3edbf2592599056c8defbdd95a3ab [7/8] Merge remote-tracking branch 'drm-intel/topic/core-for-CI' into drm-tip config: m68k-allyesconfig (attached as .config) compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 315fade0d9f3edbf2592599056c8defbdd95a3ab # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=m68k
All errors (new ones prefixed by >>):
kernel/dma/debug.o: In function `dma_entry_alloc':
debug.c:(.text+0x11d2): undefined reference to `save_stack_trace'
kernel/backtracetest.o: In function `backtrace_regression_test':
backtracetest.c:(.text+0xd8): undefined reference to `save_stack_trace'
mm/slub.o: In function `set_track':
slub.c:(.text+0x12b4): undefined reference to `save_stack_trace'
fs/btrfs/ref-verify.o: In function `btrfs_ref_tree_mod':
ref-verify.c:(.text+0x92e): undefined reference to `save_stack_trace'
lib/debugobjects.o: In function `save_stack.isra.0':
debugobjects.c:(.text+0x9f2): undefined reference to `save_stack_trace'
probably this?
commit 3ef9e3d575a2b725e5783fd57192ceb573359a33 Author: Daniel Vetter daniel.vetter@ffwll.ch Date: Tue Mar 20 17:02:58 2018 +0100
RFC: debugobjects: capture stack traces at _init() time
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