[{"id":3676939,"web_url":"http://patchwork.ozlabs.org/comment/3676939/","msgid":"<79b575cb-5d7d-4e3a-80f1-5b67ac7cad9f@linaro.org>","list_archive_url":null,"date":"2026-04-13T22:06:20","subject":"Re: [PATCH] accel/hvf: fix double hv_vcpu_destroy() causing teardown\n error","submitter":{"id":85046,"url":"http://patchwork.ozlabs.org/api/people/85046/","name":"Philippe Mathieu-Daudé","email":"philmd@linaro.org"},"content":"Hi Matheus,\n\nOn 13/4/26 18:01, Matheus Tavares Bernardino wrote:\n> The following callstack causes hv_vcpu_destroy() to be called twice,\n> producing HV_BAD_ARGUMENT on the already-destroyed handler:\n> \n> hvf_vcpu_destroy\n> |\n> |_ hv_vcpu_destroy\n> |\n> |_ hvf_arch_vcpu_destroy\n> |\n> |_ hv_vcpu_destroy\n> \n> Let's remove the redundant call at first function.\n> \n> Signed-off-by: Matheus Tavares Bernardino \n> ---\n> accel/hvf/hvf-accel-ops.c | 3 ---\n> 1 file changed, 3 deletions(-)\n> \n> diff --git a/accel/hvf/hvf-accel-ops.c b/accel/hvf/hvf-accel-ops.c\n> index b74a5779c3..d1c532f7e0 100644\n> --- a/accel/hvf/hvf-accel-ops.c\n> +++ b/accel/hvf/hvf-accel-ops.c\n> @@ -113,9 +113,6 @@ static void do_hvf_get_vcpu_exec_time(CPUState *cpu, run_on_cpu_data arg)\n> \n> static void hvf_vcpu_destroy(CPUState *cpu)\n> {\n> - hv_return_t ret = hv_vcpu_destroy(cpu->accel->fd);\n> - assert_hvf_ok(ret);\n\nThat would break x86. I suppose I screwed something in commit\nfeee55d36a1 (\"accel/hvf: Implement hvf_arch_vcpu_destroy\"). This\nwas part of my split-accel work which as of today I flushed out\nof my head so don't recall well.\n\nAt any rate, better to remove the duplicate call in ARM's\nhvf_arch_vcpu_destroy(), WDYT?\n\n> hvf_arch_vcpu_destroy(cpu);\n> g_free(cpu->accel);\n> cpu->accel = NULL;","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=moUYgEDZ;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fvhMg2XmQz1y2d\n\tfor ; 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charset=UTF-8; format=flowed","Content-Transfer-Encoding":"7bit","Received-SPF":"pass client-ip=2a00:1450:4864:20::42d;\n envelope-from=philmd@linaro.org; helo=mail-wr1-x42d.google.com","X-Spam_score_int":"-20","X-Spam_score":"-2.1","X-Spam_bar":"--","X-Spam_report":"(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"}},{"id":3677191,"web_url":"http://patchwork.ozlabs.org/comment/3677191/","msgid":"","list_archive_url":null,"date":"2026-04-14T13:05:45","subject":"Re: [PATCH] accel/hvf: fix double hv_vcpu_destroy() causing teardown\n error","submitter":{"id":90606,"url":"http://patchwork.ozlabs.org/api/people/90606/","name":"Matheus Tavares Bernardino","email":"matheus.bernardino@oss.qualcomm.com"},"content":"On Mon, Apr 13, 2026 at 7:06 PM Philippe Mathieu-Daudé\n wrote:\n>\n> Hi Matheus,\n>\n> On 13/4/26 18:01, Matheus Tavares Bernardino wrote:\n>\n> > @@ -113,9 +113,6 @@ static void do_hvf_get_vcpu_exec_time(CPUState *cpu, run_on_cpu_data arg)\n> >\n> > static void hvf_vcpu_destroy(CPUState *cpu)\n> > {\n> > - hv_return_t ret = hv_vcpu_destroy(cpu->accel->fd);\n> > - assert_hvf_ok(ret);\n>\n> That would break x86. I suppose I screwed something in commit\n> feee55d36a1 (\"accel/hvf: Implement hvf_arch_vcpu_destroy\"). This\n> was part of my split-accel work which as of today I flushed out\n> of my head so don't recall well.\n>\n> At any rate, better to remove the duplicate call in ARM's\n> hvf_arch_vcpu_destroy(), WDYT?\n\nAh, indeed, I hadn't noticed x86's callstack. Let's do that, I'll send a re-roll","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=b2qmQPX1;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=MWLNvd+8;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fw4Kg3nJHz1y2d\n\tfor ; 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