From nobody Fri Dec 13 20:13:00 2024 X-Original-To: virtualization@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Y90rZ5K9yz5g3fV for ; Fri, 13 Dec 2024 20:13:02 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Y90rZ3v4gz4S1b for ; Fri, 13 Dec 2024 20:13:02 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1734120782; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ud13/AjBRKfp7DqAVMkJgJPl5H7RXfM9ZINDNWP2XIE=; b=NqF0IXmLm6jZpKoGQhY8awkACIP16THccWKN01K/RF6nKVJFw+cOziWZsepl0OfJH/kPe2 AQIa6RXhlF8apMg6SujrqmFvrM/VNkIknbh7vP5d5X3ADwAOZGExDUpaR9awIrW131If3P 9CKMUUBmi1UIddTCOu8MoQ/r6CMRgg/so1wzKtGuTMbI7ZW+9VL4odzVMTVmPYbIMIXA06 TLkk8Do0mz0lNICx7uE6xE98PkKu+ALX8zhiFICn+vCGt4X/HeprPBBEEp5uQBvKV3O33E JSmLuSbtKTxby88uRcHnCUWQ9SsI3klkZHzfIHvXpLOsQEsGjoK9S59afa/iXg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1734120782; a=rsa-sha256; cv=none; b=ufsk2I6+G/upe10hf/UHsfWpAIKJpLLXHeIMnE6brR3oIaGFtkixcOuOjNN1b4n9EemEsV B/2n0m9ToSpO8KP0bcvKAXMFpylDMuFzWbBxE9ZSk8eDSR8jcOdRlYyvCRaRkKA5tGnG9y 6M+HGEJwBFZ+tW0xzzyAD2Y4Zg7KS2V2KDAnpngcSR71/MeddAfihSjFvV+CBP98JcaseJ c3F+j24SimMX00sDHAiRHv9oW57iPYNLCANRZxRR+RHS4+LeT2b9W/7OXaMKwmWeXnyJYN bc5vPv+xwSp+NB3Mh/gzhC9wxOCRyk/0zrlXrCIdbTJtkKw+Yl+UKiBbOpP2CQ== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4Y90rZ3WBBzs7D for ; Fri, 13 Dec 2024 20:13:02 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 4BDKD2Jc077920 for ; Fri, 13 Dec 2024 20:13:02 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 4BDKD2TD077919 for virtualization@FreeBSD.org; Fri, 13 Dec 2024 20:13:02 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 279901] glibc-2.39-2 and above on the host segfault Date: Fri, 13 Dec 2024 20:13:00 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: mp@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org 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: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D279901 Mark Peek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mp@FreeBSD.org --- Comment #29 from Mark Peek --- (In reply to Darren Henderson from comment #28) The glibc changes indicated in this bug were specific to amd. I have tried numerous times to reproduce this issue on intel systems but have not seen it occur. Sadly I don't have an applicable AMD systems to test on. Here's my arch install as a bhyve guest: $ uname -a Linux archlinux 6.12.4-arch1-1 #1 SMP PREEMPT_DYNAMIC Mon, 09 Dec 2024 14:3= 1:57 +0000 x86_64 GNU/Linux $ ld.so --list-diagnostics | grep -e version.version version.version=3D"2.40" Given some of the ld.so output in previous updates to this bug, I did a dif= f to try to find the x86 tunable changes between them. 43c40 < version.version=3D"2.36" --- > version.version=3D"2.40" 189,191c196,199 < x86.cpu_features.rep_movsb_threshold=3D0x2000 < x86.cpu_features.rep_movsb_stop_threshold=3D0x80000 < x86.cpu_features.rep_stosb_threshold=3D0x800 --- > x86.cpu_features.memset_non_temporal_threshold=3D0xc000000000 > x86.cpu_features.rep_movsb_threshold=3D0x0 > x86.cpu_features.rep_movsb_stop_threshold=3D0xc000000000 > x86.cpu_features.rep_stosb_threshold=3D0xffffffffffffffff Running binaries with this environment set, so the intel system would run t= he same code path in glibc as amd would, did not cause the issue on my intel system. GLIBC_TUNABLES=3D"glibc.cpu.x86_memset_non_temporal_threshold=3D0xc00000000= 0:glibc.cpu.x86_rep_movsb_threshold=3D0x0:glibc.cpu.x86_rep_movsb_stop_thre= shold=3D0xc000000000:glibc.cpu.x86_rep_stosb_threshold=3D0xffffffffffffffff" If anyone has seen it on intel, it would be great to have the repro steps a= dded to this bug. --=20 You are receiving this mail because: You are the assignee for the bug.=