From owner-freebsd-bugs@freebsd.org Thu Dec 10 17:58:27 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 919494B1D49 for ; Thu, 10 Dec 2020 17:58:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4CsM8z3CMnz4mGj for ; Thu, 10 Dec 2020 17:58:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 6DDD84B1D48; Thu, 10 Dec 2020 17:58:27 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 6D7D04B1D47 for ; Thu, 10 Dec 2020 17:58:27 +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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CsM8z2G0Yz4mGg for ; Thu, 10 Dec 2020 17:58:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 3CBC41CE21 for ; Thu, 10 Dec 2020 17:58:27 +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 0BAHwRxb014585 for ; Thu, 10 Dec 2020 17:58:27 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 0BAHwRbD014584 for bugs@FreeBSD.org; Thu, 10 Dec 2020 17:58:27 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: bugs@FreeBSD.org Subject: [Bug 251736] [panic] memcpy_erms general protection fault on AMD Zen 3 (Ryzen 5000 series) Date: Thu, 10 Dec 2020 17:58:27 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: panic X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: greg@unrelenting.technology X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status keywords bug_severity priority component assigned_to reporter cc Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Dec 2020 17:58:27 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251736 Bug ID: 251736 Summary: [panic] memcpy_erms general protection fault on AMD Zen 3 (Ryzen 5000 series) Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Keywords: panic Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: greg@unrelenting.technology CC: kib@FreeBSD.org, mjg@FreeBSD.org With Enhanced REP MOVSB/STOSB enabled in firmware settings on an AMD Zen 3 system, FreeBSD panics pretty quickly, e.g. (yeah, started a scrub because I initially thought the panics might've been related to my zfs pool) [152] Fatal trap 9: general protection fault while in kernel mode [152] cpuid =3D 6; apic id =3D 06 [152] instruction pointer =3D 0x20:0xffffffff807a4380 [152] stack pointer =3D 0x28:0xfffffe010e9af250 [152] frame pointer =3D 0x28:0xfffffe010e9af250 [152] code segment =3D base 0x0, limit 0xfffff, type 0x1b [152] =3D DPL 0, pres 1, long 1, def32 0, gran 1 [152] processor eflags =3D interrupt enabled, resume, IOPL =3D 0 [152] current process =3D 0 (z_rd_int_3) [152] trap number =3D 9 [152] panic: general protection fault [152] cpuid =3D 6 [152] time =3D 1607620126 [152] KDB: stack backtrace: [152] db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe010e9aef60 [152] vpanic() at vpanic+0x181/frame 0xfffffe010e9aefb0 [152] panic() at panic+0x43/frame 0xfffffe010e9af010 [152] trap_fatal() at trap_fatal+0x387/frame 0xfffffe010e9af070 [152] trap() at trap+0x8e/frame 0xfffffe010e9af180 [152] calltrap() at calltrap+0x8/frame 0xfffffe010e9af180 [152] --- trap 0x9, rip =3D 0xffffffff807a4380, rsp =3D 0xfffffe010e9af250,= rbp =3D 0xfffffe010e9af250 --- [152] memcpy_erms() at memcpy_erms+0x130/frame 0xfffffe010e9af250 [152] abd_copy_off_cb() at abd_copy_off_cb+0x9/frame 0xfffffe010e9af260 [152] abd_iterate_func2() at abd_iterate_func2+0x27c/frame 0xfffffe010e9af3= 40 [152] abd_copy_off() at abd_copy_off+0x1c/frame 0xfffffe010e9af360 [152] vdev_mirror_scrub_done() at vdev_mirror_scrub_done+0xd3/frame 0xfffffe010e9af3b0 kgdb "helpfully" points at support.S:577 which is just the whole macro invocation `MEMMOVE erms=3D1 overlap=3D0 begin=3DMEMMOVE_BEGIN end=3DMEMMOV= E_END` :/ --=20 You are receiving this mail because: You are the assignee for the bug.=