tree: https://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git nvme-error-handling-fixes-5.9 head: f896e97adeb5a5d8db162373087e98ab1f1fcd8e commit: b121fcebd77ad2e2b2d1b57586552b77bbbbe6a3 [6/8] nvme: update failover handling to work with REQ_FAILFAST_TRANSPORT config: ia64-randconfig-s032-20200818 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-183-gaa6ede3b-dirty git checkout b121fcebd77ad2e2b2d1b57586552b77bbbbe6a3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/nvme/host/core.c:1644:16: sparse: sparse: context imbalance in 'nvme_get_ns_from_disk' - wrong count at exit drivers/nvme/host/core.c: note: in included file (through include/linux/notifier.h, include/linux/memory_hotplug.h, include/linux/mmzone.h, ...): include/linux/srcu.h:181:9: sparse: sparse: context imbalance in 'nvme_put_ns_from_disk' - unexpected unlock # https://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git/commit/... git remote add snitzer https://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git git fetch --no-tags snitzer nvme-error-handling-fixes-5.9 git checkout b121fcebd77ad2e2b2d1b57586552b77bbbbe6a3 vim +316 drivers/nvme/host/core.c 306 307 static inline void nvme_end_req_with_failover(struct request *req) 308 { 309 u16 nvme_status = nvme_req(req)->status; 310 blk_status_t status = nvme_error_status(nvme_status); 311 312 if (unlikely(nvme_status & NVME_SC_DNR)) 313 goto out; 314 315 if (!blk_path_error(status)) { 317 (unsigned)status); 318 status = BLK_STS_IOERR; 319 } 320 out: 321 __nvme_end_req(req, status); 322 } 323 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org