From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C164A383DB8F; Fri, 27 Jan 2023 17:29:32 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C164A383DB8F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1674840572; bh=zHIsYc2kMlOCR00f2xENPlZz05YGEStcfgF1PuHw0RI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=FOT1NQP0ao1kgKSfSl3jEcZp8tn4qgi6QMoHScDOOJKIK4V2vfCVjMPascfer324x Dw+Pe3+o4Gy2CjpEAkTDopM75qFpaItXcmsy1wwYQ9VLupXcA7/8R1CtCL+B1JlUiy MjMcvIG34c8KXvyavFSmmGyLPaNCrUJmiDBVaRo4= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/108552] Linux i386 kernel 5.14 memory corruption for pre_compound_page() when gcov is enabled Date: Fri, 27 Jan 2023 17:29:32 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 11.3.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108552 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |vmakarov at gcc dot gnu.org --- Comment #34 from Jakub Jelinek --- Seems right now DECL_NONALIASED is only used on these coverage vars and on Fortran caf tokens, so perhaps a quick workaround would be on the LRA side never reread stuff from MEMs with VAR_P && DECL_NONALIASED MEM_EXPRs. CCing Vlad on that.=