From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35637) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ek6Br-0006Sw-VS for qemu-devel@nongnu.org; Fri, 09 Feb 2018 05:46:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ek6Bo-0006Hz-SE for qemu-devel@nongnu.org; Fri, 09 Feb 2018 05:45:59 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:35668 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ek6Bo-0006HW-Nu for qemu-devel@nongnu.org; Fri, 09 Feb 2018 05:45:56 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4C35784256 for ; Fri, 9 Feb 2018 10:45:52 +0000 (UTC) From: Paolo Bonzini Date: Fri, 9 Feb 2018 11:45:42 +0100 Message-Id: <20180209104546.29401-1-pbonzini@redhat.com> Subject: [Qemu-devel] [PATCH 0/4] tcg: fix dirty bitmap race with MTTCG List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: dgilbert@redhat.com This is a race that can happen when migrating TCG guests under load. It was introduced by the change to run vCPUs outside the big QEMU lock. Paolo Bonzini (4): memory: remove memory_region_test_and_clear_dirty memory: hide memory_region_sync_dirty_bitmap behind DirtyBitmapSnapshot memory: introduce memory_global_after_dirty_log_sync memory: unify loops to sync dirty log bitmap exec.c | 31 ++++++++++++++++++ hw/display/cg3.c | 1 - hw/display/exynos4210_fimd.c | 1 - hw/display/framebuffer.c | 1 - hw/display/g364fb.c | 1 - hw/display/sm501.c | 1 - hw/display/tcx.c | 2 -- hw/display/vga.c | 6 ---- include/exec/memory.h | 47 +++++++++------------------ memory.c | 76 +++++++++++++++++--------------------------- migration/ram.c | 1 + 11 files changed, 76 insertions(+), 92 deletions(-) -- 2.14.3