From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5AF9D213E99 for ; Thu, 20 Feb 2025 17:43:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740073425; cv=none; b=BUEq6fYR+BpyFHPY19ActXyy6SPhkbTf61Ah0++ln+kOgZtl27YW/oGaJCXuLT5cl1E/yv1ARixsyUEq+zJkQIq3fvF/kw85BvhW8LoGg/CDIUpYFShduP58/+3oCxgIJZjJ9thqQPaGzl4Szll5A68GO9tnYPpwLqMWlkXTpuo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740073425; c=relaxed/simple; bh=QyXlAeWK1x12BtL9q9sJIq3Aok05BP7IY2cmdZanXgk=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=a9uzS0xCRnsbWJxZa3eAUm0RGHHgr1A4c0/yGmWYdV8FKZKrTn79jVUOFh0K9wxxlYaOkDJvldJkI017kXLdz7h/QC/V3GJmfXU98Tayg/MEta7gDcMZqVNNcnqn4tQz974vNkCxsM5h2XYDK0RXQTBf3J9+Tt6MXRfzjrFSU1Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gdOsRd+f; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gdOsRd+f" Received: by smtp.kernel.org (Postfix) with ESMTPS id D00ACC4CEE9 for ; Thu, 20 Feb 2025 17:43:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740073424; bh=QyXlAeWK1x12BtL9q9sJIq3Aok05BP7IY2cmdZanXgk=; h=From:To:Subject:Date:In-Reply-To:References:From; b=gdOsRd+f9bcHqB/MdDg04Mzcy/RYsL0JyLBxzxzHlxA2Fbzf0D1AyUmQXM/XoWu6r 0Fx2cFKoMQkB1WvQ3yvq6fZSOknkXRoZEAYunTqxOaR4uSTnRaDdO3fRzUi17VIdpv ieRqHcU9S6cHRLlWSzOzNvfbSz20KoqJ5Wd08TCqp8JXM/0p1ly/VdOOvhvhdNtfeD obv+EJWtE+S2GRO7lvsVUzeq3sDKPU6+LpMEq0kdHNYJUrUTQB7i0J0DbAdXVO1lUh HfX6+q8iaVJHInzwao1AHk4rFRgNFiR44LBpYfChgOXw38RomYDtQFvwkF+6yWWm9H 0NrqjsWpIYg2A== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id C7C1FC41614; Thu, 20 Feb 2025 17:43:44 +0000 (UTC) From: bugzilla-daemon@kernel.org To: kvm@vger.kernel.org Subject: [Bug 219787] Guest's applications crash with EXCEPTION_SINGLE_STEP (0x80000004) Date: Thu, 20 Feb 2025 17:43:44 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Product: Virtualization X-Bugzilla-Component: kvm X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: seanjc@google.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D219787 --- Comment #6 from Sean Christopherson (seanjc@google.com) --- On Thu, Feb 20, 2025, bugzilla-daemon@kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=3D219787 >=20 > --- Comment #4 from rangemachine@gmail.com --- > (In reply to Sean Christopherson from comment #2) > > Are you able to bisect to an exact commit? There are significant KVM > > changes in 6.13, but they're almost all related to memory management. I > > can't think of anything that would manifest as an unexpected single step > > #DB, especially not with any consistency. > >=20 > > And just to double check, the only difference in the setup is that the = host > > kernel was upgraded from v6.12 =3D> v6.13? E.g. there was no QEMU upda= te or > > guest-side changes? >=20 > I was not able to bisect yet, sorry. No need to be sorry, you didn't introduce the bug :-) > And yes, I double checked, the only change is kernel upgraded from v6.12.= 10 > to v6.13.2 (did not checked v6.13.3 yet, but rc version had some behaviou= r). Please let me know if you'll be able to bisect (or not). Unless I have a random epiphany, this will likely require bisection. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=