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GET /api/patches/1627167/?format=api
{ "id": 1627167, "url": "http://patchwork.ozlabs.org/api/patches/1627167/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20220505184938.351866-4-danielhb413@gmail.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20220505184938.351866-4-danielhb413@gmail.com>", "list_archive_url": null, "date": "2022-05-05T18:49:11", "name": "[PULL,03/30] target/ppc: init 'sregs' in kvmppc_put_books_sregs()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a3a59517cc48b04a4bb01e558cc6a75eb1df5273", "submitter": { "id": 74265, "url": "http://patchwork.ozlabs.org/api/people/74265/?format=api", "name": "Daniel Henrique Barboza", "email": "danielhb413@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20220505184938.351866-4-danielhb413@gmail.com/mbox/", "series": [ { "id": 298671, "url": "http://patchwork.ozlabs.org/api/series/298671/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=298671", "date": "2022-05-05T18:49:09", "name": "[PULL,01/30] target/ppc: initialize 'val' union in kvm_get_one_spr()", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/298671/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1627167/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1627167/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "bilbo.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20210112 header.b=dUuFytaM;\n\tdkim-atps=neutral", "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20210112;\n h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n :references:mime-version:content-transfer-encoding;\n bh=uSsF244vZwVV0oKrilhMtJ2vlWLa4NxggLes2MVhJig=;\n b=zCw6LDqNPp8GePtEq0gtlzAqq5nq59RidqZyW2sUtLIL1d69ksGyZWFBfOAIj1OcRn\n EYjOh8irF6il2i3Ma4ASWtlcHFIQtGU9cm2GDseoa32A6GNlqOjG6KYeUQviUCcUnFc3\n CcxmYEyYPiBH7L7FydlMq1Q9sysQjdYCrm//Kb+vN6fOW0qb6LfP34czpziipNAcajtv\n NGnzqN4rtkK2fmtbR0nEikjObgzTddJ5CbmVyYa4hTvh4bM5hwvlUULOALqJwbhpoa74\n NsWyVhny8rEQyqA6ExlJsrnx0VfZK3BW6H9MzpwrzHCPFAOvDac0P8QuQ7Q83iBHVMwS\n wMUw==", "X-Gm-Message-State": "AOAM5332msqsHHWyCKr0EtqCk/2ccYPx0lvQAcAXN9IykcfFK8hAbOkq\n wN6Fj3R9+ef00d5tm5zoPf0InJkFrts=", "X-Google-Smtp-Source": "\n ABdhPJySpGsr0FOHdX1pd7oizkFaR5X9B18EJrRDxy8J9jIbPskxuiwPtb2XfJFaaxmTLQpxDYJzBg==", "X-Received": "by 2002:a05:6808:120f:b0:325:bc53:2150 with SMTP id\n a15-20020a056808120f00b00325bc532150mr3263700oil.139.1651776613505;\n Thu, 05 May 2022 11:50:13 -0700 (PDT)", "From": "Daniel Henrique Barboza <danielhb413@gmail.com>", "To": "qemu-devel@nongnu.org", "Cc": "qemu-ppc@nongnu.org, danielhb413@gmail.com, peter.maydell@linaro.org,\n richard.henderson@linaro.org,\n =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <f4bug@amsat.org>", "Subject": "[PULL 03/30] target/ppc: init 'sregs' in kvmppc_put_books_sregs()", "Date": "Thu, 5 May 2022 15:49:11 -0300", "Message-Id": "<20220505184938.351866-4-danielhb413@gmail.com>", "X-Mailer": "git-send-email 2.32.0", "In-Reply-To": "<20220505184938.351866-1-danielhb413@gmail.com>", "References": "<20220505184938.351866-1-danielhb413@gmail.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::230;\n envelope-from=danielhb413@gmail.com; helo=mail-oi1-x230.google.com", "X-Spam_score_int": "-18", "X-Spam_score": "-1.9", "X-Spam_bar": "-", "X-Spam_report": "(-1.9 / 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 FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001,\n T_SCC_BODY_TEXT_LINE=-0.01 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-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Init 'sregs' to avoid Valgrind complaints about uninitialized bytes\nfrom kvmppc_put_books_sregs():\n\n==54059== Thread 3:\n==54059== Syscall param ioctl(generic) points to uninitialised byte(s)\n==54059== at 0x55864E4: ioctl (in /usr/lib64/libc.so.6)\n==54059== by 0xD1FA23: kvm_vcpu_ioctl (kvm-all.c:3053)\n==54059== by 0xAFB18B: kvmppc_put_books_sregs (kvm.c:891)\n==54059== by 0xAFB47B: kvm_arch_put_registers (kvm.c:949)\n==54059== by 0xD1EDA7: do_kvm_cpu_synchronize_post_init (kvm-all.c:2766)\n==54059== by 0x481AF3: process_queued_cpu_work (cpus-common.c:343)\n==54059== by 0x4EF247: qemu_wait_io_event_common (cpus.c:412)\n==54059== by 0x4EF343: qemu_wait_io_event (cpus.c:436)\n==54059== by 0xD21E83: kvm_vcpu_thread_fn (kvm-accel-ops.c:54)\n==54059== by 0xFFEBF3: qemu_thread_start (qemu-thread-posix.c:556)\n==54059== by 0x54E6DC3: start_thread (in /usr/lib64/libc.so.6)\n==54059== by 0x5596C9F: clone (in /usr/lib64/libc.so.6)\n==54059== Address 0x799d1cc is on thread 3's stack\n==54059== in frame #2, created by kvmppc_put_books_sregs (kvm.c:851)\n==54059== Uninitialised value was created by a stack allocation\n==54059== at 0xAFAEB0: kvmppc_put_books_sregs (kvm.c:851)\n\nThis happens because Valgrind does not consider the 'sregs'\ninitialization done by kvm_vcpu_ioctl() at the end of the function.\n\nReviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>\nSigned-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>\nMessage-Id: <20220331001717.616938-4-danielhb413@gmail.com>\nSigned-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>\n---\n target/ppc/kvm.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c\nindex 69094ddb7a..c4180b7270 100644\n--- a/target/ppc/kvm.c\n+++ b/target/ppc/kvm.c\n@@ -850,7 +850,7 @@ static int kvm_put_vpa(CPUState *cs)\n int kvmppc_put_books_sregs(PowerPCCPU *cpu)\n {\n CPUPPCState *env = &cpu->env;\n- struct kvm_sregs sregs;\n+ struct kvm_sregs sregs = { };\n int i;\n \n sregs.pvr = env->spr[SPR_PVR];\n", "prefixes": [ "PULL", "03/30" ] }