On Thu, Jun 27, 2024 at 7:07 PM Mirsad Todorovac <mtodorovac69@xxxxxxxxx> wrote: > > Hi all, > > After following Boris' advice in https://lore.kernel.org/lkml/20240404134142.GCZg6uFh_ZSzUFLChd@fat_crate.local/ > on using the randconfig test, this is the second catch: > > KCONFIG_SEED=0xEE80059C > > marvin@defiant:~/linux/kernel/linux_torvalds$ time nice make -j 36 bindeb-pkg |& tee ../err-6.10-rc5-05a.log; date > GEN debian > dpkg-buildpackage --build=binary --no-pre-clean --unsigned-changes -R'make -f debian/rules' -j1 -a$(cat debian/arch) > dpkg-buildpackage: info: source package linux-upstream > dpkg-buildpackage: info: source version 6.10.0-rc5-gafcd48134c58-27 > dpkg-buildpackage: info: source distribution jammy > dpkg-buildpackage: info: source changed by marvin <marvin@defiant> > dpkg-architecture: warning: specified GNU system type i686-linux-gnu does not match CC system type x86_64-linux-gnu, try setting a correct CC environment variable > dpkg-source --before-build . > dpkg-buildpackage: info: host architecture i386 > make -f debian/rules binary > # > # No change to .config > # > CALL scripts/checksyscalls.sh > UPD init/utsversion-tmp.h > CC init/version.o > AR init/built-in.a > CHK kernel/kheaders_data.tar.xz > CC [M] fs/btrfs/ref-verify.o > AR fs/built-in.a > fs/btrfs/ref-verify.c: In function ‘process_extent_item.isra’: > fs/btrfs/ref-verify.c:500:16: error: ‘ret’ may be used uninitialized in this function [-Werror=maybe-uninitialized] > 500 | return ret; > | ^~~ > cc1: all warnings being treated as errors > make[7]: *** [scripts/Makefile.build:244: fs/btrfs/ref-verify.o] Error 1 > make[6]: *** [scripts/Makefile.build:485: fs/btrfs] Error 2 > make[5]: *** [scripts/Makefile.build:485: fs] Error 2 > make[4]: *** [Makefile:1934: .] Error 2 > make[3]: *** [debian/rules:74: build-arch] Error 2 > dpkg-buildpackage: error: make -f debian/rules binary subprocess returned exit status 2 > make[2]: *** [scripts/Makefile.package:121: bindeb-pkg] Error 2 > make[1]: *** [/home/marvin/linux/kernel/linux_torvalds/Makefile:1555: bindeb-pkg] Error 2 > make: *** [Makefile:240: __sub-make] Error 2 > > real 0m2.583s > user 0m9.943s > sys 0m5.607s > Thu Jun 27 19:14:55 CEST 2024 > marvin@defiant:~/linux/kernel/linux_torvalds$ > > This fix does nothing to the algorithm, but it silences compiler -Werror=maybe-uninitialised You've reported this before, and there's a fix [1] for it in the btrfs' github repo, for-next branch. It's not yet in Linus' tree. [1] https://lore.kernel.org/linux-btrfs/612bf950d478214e8b76bdd7c22dd6a991337b15.1719143259.git.fdmanana@xxxxxxxx/ > > --- > diff --git a/fs/btrfs/ref-verify.c b/fs/btrfs/ref-verify.c > index cf531255ab76..0b5ff30e2d81 100644 > --- a/fs/btrfs/ref-verify.c > +++ b/fs/btrfs/ref-verify.c > @@ -459,6 +459,8 @@ static int process_extent_item(struct btrfs_fs_info *fs_info, > iref = (struct btrfs_extent_inline_ref *)(ei + 1); > } > > + ret = -EINVAL; > + This is not correct. This would result in failure if we have an extent item without any inline references (only keyed references following the extent item). Thanks. > ptr = (unsigned long)iref; > end = (unsigned long)ei + item_size; > while (ptr < end) { > --- > > Hope this helps. > > Best regards, > Mirsad Todorovac >
