Le 09/06/2021 à 15:55, kernel test robot a écrit : That's a BTRFS issue, and not directly linked to the above mentioned commit. Before that commit the problem was already present. Problem is that with 256k PAGE_SIZE, following BUILD_BUG() pops up: BUILD_BUG_ON((BTRFS_MAX_COMPRESSED % PAGE_SIZE) != 0) > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout 4eeef098b43242ed145c83fba9989d586d707589 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp(a)intel.com&gt; > > All error/warnings (new ones prefixed by >>): > > fs/buffer.c: In function 'block_read_full_page': >>> fs/buffer.c:2342:1: warning: the frame size of 2048 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 2342 | } > | ^ > -- > fs/ext4/move_extent.c: In function 'mext_page_mkuptodate': >>> fs/ext4/move_extent.c:227:1: warning: the frame size of 2056 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 227 | } > | ^ > -- > fs/fat/dir.c: In function 'fat_add_new_entries': >>> fs/fat/dir.c:1279:1: warning: the frame size of 2088 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 1279 | } > | ^ > fs/fat/dir.c: In function 'fat_alloc_new_dir': > fs/fat/dir.c:1195:1: warning: the frame size of 2064 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 1195 | } > | ^ > -- > fs/fat/fatent.c: In function 'fat_free_clusters': >>> fs/fat/fatent.c:632:1: warning: the frame size of 2080 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 632 | } > | ^ > fs/fat/fatent.c: In function 'fat_alloc_clusters': > fs/fat/fatent.c:550:1: warning: the frame size of 2112 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 550 | } > | ^ > -- > fs/exfat/fatent.c: In function 'exfat_zeroed_cluster': >>> fs/exfat/fatent.c:277:1: warning: the frame size of 2048 bytes is larger than 1024 bytes [-Wframe-larger-than=] > 277 | } > | ^ > -- > In file included from <command-line>: > fs/btrfs/inode.c: In function 'compress_file_range': >>> include/linux/compiler_types.h:326:38: error: call to '__compiletime_assert_791' declared with attribute error: BUILD_BUG_ON failed: (BTRFS_MAX_COMPRESSED % PAGE_SIZE) != 0 > 326 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) > | ^ > include/linux/compiler_types.h:307:4: note: in definition of macro '__compiletime_assert' > 307 | prefix ## suffix(); \ > | ^~~~~~ > include/linux/compiler_types.h:326:2: note: in expansion of macro '_compiletime_assert' > 326 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) > | ^~~~~~~~~~~~~~~~~~~ > include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' > 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) > | ^~~~~~~~~~~~~~~~~~ > include/linux/build_bug.h:50:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' > 50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) > | ^~~~~~~~~~~~~~~~ > fs/btrfs/inode.c:563:2: note: in expansion of macro 'BUILD_BUG_ON' > 563 | BUILD_BUG_ON((BTRFS_MAX_COMPRESSED % PAGE_SIZE) != 0); > | ^~~~~~~~~~~~ > > > vim +/__compiletime_assert_791 +326 include/linux/compiler_types.h > > eb5c2d4b45e3d2 Will Deacon 2020-07-21 312 > eb5c2d4b45e3d2 Will Deacon 2020-07-21 313 #define _compiletime_assert(condition, msg, prefix, suffix) \ > eb5c2d4b45e3d2 Will Deacon 2020-07-21 314 __compiletime_assert(condition, msg, prefix, suffix) > eb5c2d4b45e3d2 Will Deacon 2020-07-21 315 > eb5c2d4b45e3d2 Will Deacon 2020-07-21 316 /** > eb5c2d4b45e3d2 Will Deacon 2020-07-21 317 * compiletime_assert - break build and emit msg if condition is false > eb5c2d4b45e3d2 Will Deacon 2020-07-21 318 * @condition: a compile-time constant condition to check > eb5c2d4b45e3d2 Will Deacon 2020-07-21 319 * @msg: a message to emit if condition is false > eb5c2d4b45e3d2 Will Deacon 2020-07-21 320 * > eb5c2d4b45e3d2 Will Deacon 2020-07-21 321 * In tradition of POSIX assert, this macro will break the build if the > eb5c2d4b45e3d2 Will Deacon 2020-07-21 322 * supplied condition is *false*, emitting the supplied error message if the > eb5c2d4b45e3d2 Will Deacon 2020-07-21 323 * compiler has support to do so. > eb5c2d4b45e3d2 Will Deacon 2020-07-21 324 */ > eb5c2d4b45e3d2 Will Deacon 2020-07-21 325 #define compiletime_assert(condition, msg) \ > eb5c2d4b45e3d2 Will Deacon 2020-07-21 @326 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) > eb5c2d4b45e3d2 Will Deacon 2020-07-21 327 > > :::::: The code at line 326 was first introduced by commit > :::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h > > :::::: TO: Will Deacon <will(a)kernel.org&gt; > :::::: CC: Will Deacon <will(a)kernel.org&gt; > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org >