https://bugs.kde.org/show_bug.cgi?id=511717
--- Comment #39 from Mark Wielaard <[email protected]> --- Also added to the VALGRIND_3_26_BRANCH as: commit dbdfc2b4522bb210786bddbc16e3ad855d5fa62a Author: Mark Wielaard <[email protected]> Date: Wed Jan 7 22:20:49 2026 +0100 Disable linux madvise MADV_GUARD_INSTALL glibc 2.42+ (with linux 6.13+) uses MADV_GUARD_INSTALL to setup stack guard pages. valgrind currently isn't able to track this and such guard pages also don't show up in /proc maps (only in /proc pagemap since linux 6.14). For now valgrind fails a madvise MADV_GUARD_INSTALL syscall with EINVAL. This causes glibc to fall back to mprotect PROT_NONE which valgrind is able to track. https://bugs.kde.org/show_bug.cgi?id=511717 (cherry picked from commit 19a34d1d9376f459cf0a19feb39ea4ab27690390) -- You are receiving this mail because: You are watching all bug changes.
