From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by sourceware.org (Postfix) with ESMTP id 893A53851C36 for ; Mon, 1 Jun 2020 19:12:12 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 893A53851C36 Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-149-AsrXINgaMhW9HVHYaf-T-Q-1; Mon, 01 Jun 2020 15:12:08 -0400 X-MC-Unique: AsrXINgaMhW9HVHYaf-T-Q-1 Received: by mail-wm1-f69.google.com with SMTP id 11so158770wmj.6 for ; Mon, 01 Jun 2020 12:12:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=oN0+5TFBnV57aIAJm/DSKnbRaDuZkcZzMsINs9u1TSU=; b=HPYAuge22oDLIYWxtg/m0CbtmRv9IDQYbJAj0Aj6HbJ5Eg+nkvBMtBPgGPlSpl8ASj 8jCCczJjWYe3QIDsfQov7DVHMbHbVS51t6UFu/0QM4LNDNIKxV2lkoc1nK86LN2ytq1G Jg8UmO4+ZJaxWAEWZ37wi+qntfTucV52i914+bE4dsUIzHL2RqclubMtFHsRbCFYFnUy 6vjw6e6CiXpWd1u6zSDd1tlC7R43EW2lnj/rEoFdl4OEL6nVoR8qjRqSa6CuqrywsGFV admWMmI+ggwmdhLqxlR4F3xFLjrEsj4k306bsIY1s9oi+ZOb1bdB3vCGhSUFrzocXkD8 3cmQ== X-Gm-Message-State: AOAM530fDJpertWf+TslwfIOeclxEb4p/3FsZniWjsufe4wLKsFn6noq XzzO6e+ejnLczwx+4XkFFmy0ucXV8z1VZhVSbOZlSk+mCghqNwJTcuTzU+qfR5AyTldznPtwSMZ skUqkBHOlI68= X-Received: by 2002:a1c:f003:: with SMTP id a3mr650693wmb.119.1591038726756; Mon, 01 Jun 2020 12:12:06 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxphO1ipphO/LGMS+M/+qA9zYJuub68a1wyh2GHhEbN808sxvk7e1lkzz3Ke0hLY4jew9gYiQ== X-Received: by 2002:a1c:f003:: with SMTP id a3mr650689wmb.119.1591038726576; Mon, 01 Jun 2020 12:12:06 -0700 (PDT) Received: from ?IPv6:2001:8a0:f922:c400:56ee:75ff:fe8d:232b? ([2001:8a0:f922:c400:56ee:75ff:fe8d:232b]) by smtp.gmail.com with ESMTPSA id r11sm530915wre.25.2020.06.01.12.12.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Jun 2020 12:12:05 -0700 (PDT) Subject: Re: Solaris - procfs: couldn't find pid 32748 (kernel thread 21) in procinfo list To: Petr Sumbera , gdb@sourceware.org References: <5ab0b8b1-6072-6717-1ae0-ba06339254b8@oracle.com> From: Pedro Alves Message-ID: <0570473c-1181-2269-06a0-0f6d4fc6b178@redhat.com> Date: Mon, 1 Jun 2020 20:12:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-3.2 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Jun 2020 19:12:13 -0000 On 6/1/20 12:39 PM, Petr Sumbera via Gdb wrote: > The issue seems to be that the LWP exits and the status->kind is set to TARGET_WAITKIND_SPURIOUS: > > https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=gdb/procfs.c;h=f6c6b0e71c16224d3e7345ca09e011cdcf06349a;hb=HEAD#l2214 > > But instantly it's added into the list again here: > > https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=gdb/infrun.c;h=95fc3bfe45930b53c33cb4de165db9c070449ad8;hb=HEAD#l5200 > > But there is no longer such LWP in /proc. > > Any suggestion? Either: - replace TARGET_WAITKIND_SPURIOUS with TARGET_WAITKIND_THREAD_EXITED, or, - replace status->kind = TARGET_WAITKIND_SPURIOUS; return retval; with goto wait_again; instead. Thanks, Pedro Alves