From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 36B11C44532 for ; Tue, 21 Jul 2026 12:48:03 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wm9t4-0000h9-0C; Tue, 21 Jul 2026 08:47:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wm9t2-0000gw-4y for qemu-devel@nongnu.org; Tue, 21 Jul 2026 08:47:52 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wm9sz-0000Vh-O2 for qemu-devel@nongnu.org; Tue, 21 Jul 2026 08:47:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1784638066; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JZp1mpbmLsX0yiVu0eQsF0NvZEZvFN7lA1CPYRYhcYc=; b=ff2Dxjb3hCpTK1/B0YqkqGVuIv4F/iFjknyZZu9FPp3+C/E5Nm6iJYQSzmtynDmhiVrOk4 QEBknG7gEaPhsiAkQgjcFvMMKP4o9TGsQ16A/m1Y54CGnMBShetMtIpREZSFqG5X+WWdwL zApxBIgFlEnwVJ4UXvE7KI3Xbqt3kBM= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-687-TriVhH4tOjyQrXHyBKgDNg-1; Tue, 21 Jul 2026 08:47:43 -0400 X-MC-Unique: TriVhH4tOjyQrXHyBKgDNg-1 X-Mimecast-MFC-AGG-ID: TriVhH4tOjyQrXHyBKgDNg_1784638062 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 05104195F171; Tue, 21 Jul 2026 12:47:42 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.44.22.4]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 6CF841800352; Tue, 21 Jul 2026 12:47:41 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id DF38021E6920; Tue, 21 Jul 2026 14:47:38 +0200 (CEST) From: Markus Armbruster To: Zhang Chen Cc: qemu-devel , "Dr . David Alan Gilbert" , Eric Blake , "Michael S . Tsirkin" , Stefan Hajnoczi , Paolo Bonzini , Kevin Wolf , Jason Wang , Fam Zheng , Daniel P . =?utf-8?Q?Berrang=C3=A9?= Subject: Re: [RESEND PATCH V10 00/15] iothread: Support tracking and querying IOThread holders In-Reply-To: <20260716172108.87700-1-zhangckid@gmail.com> (Zhang Chen's message of "Fri, 17 Jul 2026 01:20:41 +0800") References: <20260716172108.87700-1-zhangckid@gmail.com> Date: Tue, 21 Jul 2026 14:47:38 +0200 Message-ID: <87v7a8o6fp.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Received-SPF: permerror client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.01, RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001, T_SPF_PERMERROR=0.01 autolearn=no 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: , 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 With this series applied: $ qemu-system-x86_64 -S -display none -chardev id=chr-mon0,backend=stdio -object monitor-hmp,id=mon0,chardev=chr-mon0 -chardev id=chr-mon1,backend=socket,path=test-hmp,server=on,wait=off -object monitor-qmp,id=mon1,chardev=chr-mon1 QEMU 11.0.90 monitor - type 'help' for more information (qemu) q ** ERROR:../iothread.c:99:iothread_unref: code should not be reached Bail out! ERROR:../iothread.c:99:iothread_unref: code should not be reached Aborted (core dumped) qemu-system-x86_64 -S -display none -chardev id=chr-mon0,backend=stdio -object monitor-hmp,id=mon0,chardev=chr-mon0 -chardev id=chr-mon1,backend=socket,path=test-hmp,server=on,wait=off -object monitor-qmp,id=mon1,chardev=chr-mon1 Stack backtrace: #0 0x00007f182873832c in __pthread_kill_implementation () at /lib64/libc.so.6 #1 0x00007f18286de15e in raise () at /lib64/libc.so.6 #2 0x00007f18286c56d0 in abort () at /lib64/libc.so.6 #3 0x00007f182ac53482 in g_assertion_message[cold] () at /lib64/libglib-2.0.so.0 #4 0x00007f182acc1447 in g_assertion_message_expr () at /lib64/libglib-2.0.so.0 #5 0x000055ffa06cb50e in iothread_unref (iothread=0x55ffdb3bd740, holder=0x7ffc6152d8c0) at ../iothread.c:99 #6 0x000055ffa06cc13a in iothread_put_aio_context (iothread=0x55ffdb3bd740, holder=0x7ffc6152d8c0) at ../iothread.c:444 #7 0x000055ffa07d9af6 in monitor_cleanup () at ../monitor/monitor.c:679 #8 0x000055ffa047ca8c in qemu_cleanup (status=0) at ../system/runstate.c:1046 #9 0x000055ffa07fccb7 in qemu_default_main (opaque=0x0) at ../system/main.c:51 #10 0x000055ffa07fcd64 in main (argc=12, argv=0x7ffc6152da98) at ../system/main.c:93