CC: [email protected] CC: [email protected] TO: Christophe Leroy <[email protected]> CC: Michael Ellerman <[email protected]>
tree: https://github.com/linuxppc/linux next-test head: 51ed00e71f0130e0f3534b8e7d78facd16829426 commit: 1e688dd2a3d6759d416616ff07afc4bb836c4213 [71/81] powerpc/bug: Provide better flexibility to WARN_ON/__WARN_FLAGS() with asm goto :::::: branch date: 9 hours ago :::::: commit date: 4 days ago config: powerpc-randconfig-s032-20210818 (attached as .config) compiler: powerpc-linux-gcc (GCC) 11.2.0 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: v0.6.3-348-gf0e6938b-dirty # https://github.com/linuxppc/linux/commit/1e688dd2a3d6759d416616ff07afc4bb836c4213 git remote add linuxppc https://github.com/linuxppc/linux git fetch --no-tags linuxppc next-test git checkout 1e688dd2a3d6759d416616ff07afc4bb836c4213 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash fs/dlm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> sparse warnings: (new ones prefixed by >>) >> fs/dlm/lowcomms.c:1551:16: sparse: sparse: context imbalance in >> 'dlm_lowcomms_new_msg' - wrong count at exit fs/dlm/lowcomms.c: note: in included file (through include/linux/notifier.h, include/linux/memory_hotplug.h, include/linux/mmzone.h, ...): include/linux/srcu.h:188:9: sparse: sparse: context imbalance in 'dlm_lowcomms_commit_msg' - unexpected unlock vim +/dlm_lowcomms_new_msg +1551 fs/dlm/lowcomms.c 2874d1a68c4ec5 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1550 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 @1551 struct dlm_msg *dlm_lowcomms_new_msg(int nodeid, int len, gfp_t allocation, 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1552 char **ppc, void (*cb)(struct dlm_mhandle *mh), 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1553 struct dlm_mhandle *mh) f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1554 { f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1555 struct connection *con; 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1556 struct dlm_msg *msg; b38bc9c2b3171f fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1557 int idx; f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1558 d10a0b88751a09 fs/dlm/lowcomms.c Alexander Aring 2021-06-02 1559 if (len > DLM_MAX_SOCKET_BUFSIZE || f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1560 len < sizeof(struct dlm_header)) { d10a0b88751a09 fs/dlm/lowcomms.c Alexander Aring 2021-06-02 1561 BUILD_BUG_ON(PAGE_SIZE < DLM_MAX_SOCKET_BUFSIZE); f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1562 log_print("failed to allocate a buffer of size %d", len); f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1563 WARN_ON(1); f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1564 return NULL; fdda387f73947e fs/dlm/lowcomms-tcp.c Patrick Caulfield 2006-11-02 1565 } f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1566 b38bc9c2b3171f fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1567 idx = srcu_read_lock(&connections_srcu); f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1568 con = nodeid2con(nodeid, allocation); b38bc9c2b3171f fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1569 if (!con) { b38bc9c2b3171f fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1570 srcu_read_unlock(&connections_srcu, idx); fdda387f73947e fs/dlm/lowcomms-tcp.c Patrick Caulfield 2006-11-02 1571 return NULL; b38bc9c2b3171f fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1572 } f0747ebf48f362 fs/dlm/lowcomms.c Alexander Aring 2021-03-01 1573 2874d1a68c4ec5 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1574 msg = dlm_lowcomms_new_msg_con(con, len, allocation, ppc, cb, mh); 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1575 if (!msg) { 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1576 srcu_read_unlock(&connections_srcu, idx); 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1577 return NULL; 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1578 } 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1579 b38bc9c2b3171f fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1580 /* we assume if successful commit must called */ 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1581 msg->idx = idx; 8f2dc78dbc2010 fs/dlm/lowcomms.c Alexander Aring 2021-05-21 1582 return msg; fdda387f73947e fs/dlm/lowcomms-tcp.c Patrick Caulfield 2006-11-02 1583 } fdda387f73947e fs/dlm/lowcomms-tcp.c Patrick Caulfield 2006-11-02 1584 :::::: The code at line 1551 was first introduced by commit :::::: 8f2dc78dbc2010b497bb58e0460cb44c678a3c5b fs: dlm: make buffer handling per msg :::::: TO: Alexander Aring <[email protected]> :::::: CC: David Teigland <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
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