tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9c7d619be5a002ea29c172df5e3c1227c22cbb41 commit: 203b1152d18c04823f73b843eb3b0ad646e4dbb2 arm64/crash_core: Export KERNELPACMASK in vmcoreinfo date: 4 months ago config: arm64-randconfig-s031-20200902 (attached as .config) compiler: aarch64-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: v0.6.2-191-g10164920-dirty git checkout 203b1152d18c04823f73b843eb3b0ad646e4dbb2 # 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=arm64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> sparse warnings: (new ones prefixed by >>) net/mptcp/pm_netlink.c:209:25: sparse: sparse: context imbalance in 'mptcp_pm_create_subflow_or_signal_addr' - unexpected unlock >> net/mptcp/pm_netlink.c:256:9: sparse: sparse: context imbalance in >> 'mptcp_pm_nl_add_addr_received' - unexpected unlock # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=203b1152d18c04823f73b843eb3b0ad646e4dbb2 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 203b1152d18c04823f73b843eb3b0ad646e4dbb2 vim +/mptcp_pm_nl_add_addr_received +256 net/mptcp/pm_netlink.c 01cacb00b35cb6 Paolo Abeni 2020-03-27 234 01cacb00b35cb6 Paolo Abeni 2020-03-27 235 void mptcp_pm_nl_add_addr_received(struct mptcp_sock *msk) 01cacb00b35cb6 Paolo Abeni 2020-03-27 236 { 01cacb00b35cb6 Paolo Abeni 2020-03-27 237 struct sock *sk = (struct sock *)msk; 01cacb00b35cb6 Paolo Abeni 2020-03-27 238 struct mptcp_addr_info remote; 01cacb00b35cb6 Paolo Abeni 2020-03-27 239 struct mptcp_addr_info local; 01cacb00b35cb6 Paolo Abeni 2020-03-27 240 01cacb00b35cb6 Paolo Abeni 2020-03-27 241 pr_debug("accepted %d:%d remote family %d", 01cacb00b35cb6 Paolo Abeni 2020-03-27 242 msk->pm.add_addr_accepted, msk->pm.add_addr_accept_max, 01cacb00b35cb6 Paolo Abeni 2020-03-27 243 msk->pm.remote.family); 01cacb00b35cb6 Paolo Abeni 2020-03-27 244 msk->pm.add_addr_accepted++; 01cacb00b35cb6 Paolo Abeni 2020-03-27 245 msk->pm.subflows++; 01cacb00b35cb6 Paolo Abeni 2020-03-27 246 if (msk->pm.add_addr_accepted >= msk->pm.add_addr_accept_max || 01cacb00b35cb6 Paolo Abeni 2020-03-27 247 msk->pm.subflows >= msk->pm.subflows_max) 01cacb00b35cb6 Paolo Abeni 2020-03-27 248 WRITE_ONCE(msk->pm.accept_addr, false); 01cacb00b35cb6 Paolo Abeni 2020-03-27 249 01cacb00b35cb6 Paolo Abeni 2020-03-27 250 /* connect to the specified remote address, using whatever 01cacb00b35cb6 Paolo Abeni 2020-03-27 251 * local address the routing configuration will pick. 01cacb00b35cb6 Paolo Abeni 2020-03-27 252 */ 01cacb00b35cb6 Paolo Abeni 2020-03-27 253 remote = msk->pm.remote; 01cacb00b35cb6 Paolo Abeni 2020-03-27 254 if (!remote.port) 01cacb00b35cb6 Paolo Abeni 2020-03-27 255 remote.port = sk->sk_dport; 01cacb00b35cb6 Paolo Abeni 2020-03-27 @256 memset(&local, 0, sizeof(local)); 01cacb00b35cb6 Paolo Abeni 2020-03-27 257 local.family = remote.family; 01cacb00b35cb6 Paolo Abeni 2020-03-27 258 01cacb00b35cb6 Paolo Abeni 2020-03-27 259 spin_unlock_bh(&msk->pm.lock); 01cacb00b35cb6 Paolo Abeni 2020-03-27 260 __mptcp_subflow_connect((struct sock *)msk, 0, &local, &remote); 01cacb00b35cb6 Paolo Abeni 2020-03-27 261 spin_lock_bh(&msk->pm.lock); 01cacb00b35cb6 Paolo Abeni 2020-03-27 262 } 01cacb00b35cb6 Paolo Abeni 2020-03-27 263 :::::: The code at line 256 was first introduced by commit :::::: 01cacb00b35cb62b139f07d5f84bcf0eeda8eff6 mptcp: add netlink-based PM :::::: TO: Paolo Abeni <[email protected]> :::::: CC: David S. Miller <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
