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Mon, 13 Feb 2023 12:52:45 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5B9E82004E; Mon, 13 Feb 2023 12:52:44 +0000 (GMT) Received: from heavy.ibmuc.com (unknown [9.171.19.58]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 13 Feb 2023 12:52:44 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , Paolo Bonzini , Eduardo Habkost , Marcel Apfelbaum , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Yanan Wang , Laurent Vivier , =?UTF-8?q?Alex=20Benn=C3=A9e?= Cc: qemu-devel@nongnu.org, Christian Borntraeger , Ilya Leoshkevich Subject: [PATCH v2 0/4] Fix deadlock when dying because of a signal Date: Mon, 13 Feb 2023 13:52:33 +0100 Message-Id: <20230213125238.331881-1-iii@linux.ibm.com> X-Mailer: git-send-email 2.39.1 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: WT0CvaEnuEmxFYsn9bGMYupnXEAGH89- X-Proofpoint-ORIG-GUID: F5hb7pyv5vQNcBUVbJB8f09jeElsF1Dg Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-13_07,2023-02-13_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxlogscore=957 malwarescore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 mlxscore=0 clxscore=1011 spamscore=0 adultscore=0 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302130112 Received-SPF: pass client-ip=148.163.158.5; envelope-from=iii@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Based-on: <20230202005204.2055899-1-richard.henderson@linaro.org> ("[PATCH 00/14] linux-user/sparc: Handle missing traps") v1: https://lists.gnu.org/archive/html/qemu-devel/2023-01/msg07251.html v1 -> v2: Drop the sparc patch (superseded by Richard's series). Add the end_exclusive() fix. Hi, wasmtime testsuite found a deadlock in qemu_plugin_user_exit(). I tracked it down to one of my earlier patches, which introduced cleanup in dump_core_and_abort(). Patches 1 and 2 fix the issue, patch 3 fixes __builtin_trap() handling in microblaze, which is needed for patch 4, that adds a test. Best regards, Ilya Ilya Leoshkevich (4): linux-user: Always exit from exclusive state in fork_end() cpus: Make {start,end}_exclusive() recursive linux-user/microblaze: Handle privileged exception tests/tcg/linux-test: Add linux-fork-trap test cpus-common.c | 12 +++++- include/hw/core/cpu.h | 4 +- linux-user/main.c | 10 +++-- linux-user/microblaze/cpu_loop.c | 10 ++++- linux-user/syscall.c | 1 + tests/tcg/multiarch/linux/linux-fork-trap.c | 48 +++++++++++++++++++++ 6 files changed, 75 insertions(+), 10 deletions(-) create mode 100644 tests/tcg/multiarch/linux/linux-fork-trap.c -- 2.39.1