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 X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5C775C2D0E2 for ; Tue, 22 Sep 2020 19:48:51 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D34EC20888 for ; Tue, 22 Sep 2020 19:48:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="bsRUPMvS" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D34EC20888 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33584 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kKoHR-0007Mw-Ks for qemu-devel@archiver.kernel.org; Tue, 22 Sep 2020 15:48:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48438) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kKoGV-0006ZD-6G for qemu-devel@nongnu.org; Tue, 22 Sep 2020 15:47:51 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:30986) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kKoGS-0003pc-NS for qemu-devel@nongnu.org; Tue, 22 Sep 2020 15:47:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1600804067; 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: content-transfer-encoding:content-transfer-encoding; bh=HcylN3+ZJ6vZ/Mby0hLpsXmZsSXQu1h+AgSu1T22ggA=; b=bsRUPMvS2yn+tbUnTAQmisp2VM5DJlpbS6MVHpxBs9tOYuXJJg4/XQewIiMf4dcNDBmppe KaYcQmFt2w38/0Gua47GN1VfANVNpr1NYDoXPu4mjcTxvzdNhteaQcZ3neg/4/GJ8rUONj ABBS00GS/a4UBcyFYXgBKl0TT9PW52c= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-399-yRxv6HkxNA6yXNZOmrqNdw-1; Tue, 22 Sep 2020 15:47:40 -0400 X-MC-Unique: yRxv6HkxNA6yXNZOmrqNdw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 744BA809AD1; Tue, 22 Sep 2020 19:47:39 +0000 (UTC) Received: from localhost (unknown [10.10.67.5]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2F62D19D61; Tue, 22 Sep 2020 19:47:33 +0000 (UTC) From: Eduardo Habkost To: qemu-devel@nongnu.org Subject: [PATCH] bios-tables-test: Remove kernel-irqchip=off option Date: Tue, 22 Sep 2020 15:47:32 -0400 Message-Id: <20200922194732.2100510-1-ehabkost@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ehabkost@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=ehabkost@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/22 15:47:47 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.455, 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_H5=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , 1896263@bugs.launchpad.net, Thomas Huth , "Michael S. Tsirkin" , "Dr. David Alan Gilbert" , Stefan Hajnoczi , Paolo Bonzini , Igor Mammedov , Vitaly Kuznetsov Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We don't need to use kernel-irqchip=off for irq0 override if IRQ routing is supported by the host, which is the case since 2009 (IRQ routing was added to KVM in Linux v2.6.30). This is a more straightforward fix for Launchpad bug #1896263, as it doesn't require increasing the complexity of the MSR code. kernel-irqchip=off is for debugging only and there's no need to increase the complexity of the code just to work around an issue that was already fixed in the kernel. Fixes: https://bugs.launchpad.net/bugs/1896263 Signed-off-by: Eduardo Habkost --- tests/qtest/bios-tables-test.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c index a9c8d478aee..27e8f0a1cb7 100644 --- a/tests/qtest/bios-tables-test.c +++ b/tests/qtest/bios-tables-test.c @@ -663,8 +663,7 @@ static void test_acpi_one(const char *params, test_data *data) data->uefi_fl1, data->uefi_fl2, data->cd, params ? params : ""); } else { - /* Disable kernel irqchip to be able to override apic irq0. */ - args = g_strdup_printf("-machine %s,kernel-irqchip=off %s -accel tcg " + args = g_strdup_printf("-machine %s %s -accel tcg " "-net none -display none %s " "-drive id=hd0,if=none,file=%s,format=raw " "-device %s,drive=hd0 ", -- 2.26.2 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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 409D8C2D0E2 for ; Tue, 22 Sep 2020 19:56:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 70F9B221E8 for ; Tue, 22 Sep 2020 19:56:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 70F9B221E8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40230 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kKoPJ-0002H3-8j for qemu-devel@archiver.kernel.org; Tue, 22 Sep 2020 15:56:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50180) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kKoOW-0001qK-Ds for qemu-devel@nongnu.org; Tue, 22 Sep 2020 15:56:08 -0400 Received: from indium.canonical.com ([91.189.90.7]:53112) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kKoOR-0004vK-EE for qemu-devel@nongnu.org; Tue, 22 Sep 2020 15:56:08 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1kKoOP-0004B6-Ho for ; Tue, 22 Sep 2020 19:56:01 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 71EB12E80EA for ; Tue, 22 Sep 2020 19:56:01 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Tue, 22 Sep 2020 19:47:32 -0000 From: Eduardo Habkost <1896263@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; importance=Undecided; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: ehabkost laurent-vivier maxco stefanha vkuznets X-Launchpad-Bug-Reporter: Apteryx (maxco) X-Launchpad-Bug-Modifier: Eduardo Habkost (ehabkost) References: <160044888692.1133.11388395637815022535.malonedeb@chaenomeles.canonical.com> Message-ID: <20200922194732.2100510-1-ehabkost@redhat.com> Subject: [Bug 1896263] [PATCH] bios-tables-test: Remove kernel-irqchip=off option X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="83bdf6c8a3a5f87722c8927e54838522f3e57504"; Instance="production" X-Launchpad-Hash: 85915a90629db5c984e3a026f8aaaa96777bd53c Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/22 15:45:37 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1896263 <1896263@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Message-ID: <20200922194732.w_Calil2N3pBSmKzGlsNFRVcAnukmugXlQXb0SsGlxg@z> We don't need to use kernel-irqchip=3Doff for irq0 override if IRQ routing is supported by the host, which is the case since 2009 (IRQ routing was added to KVM in Linux v2.6.30). This is a more straightforward fix for Launchpad bug #1896263, as it doesn't require increasing the complexity of the MSR code. kernel-irqchip=3Doff is for debugging only and there's no need to increase the complexity of the code just to work around an issue that was already fixed in the kernel. Fixes: https://bugs.launchpad.net/bugs/1896263 Signed-off-by: Eduardo Habkost --- tests/qtest/bios-tables-test.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c index a9c8d478aee..27e8f0a1cb7 100644 --- a/tests/qtest/bios-tables-test.c +++ b/tests/qtest/bios-tables-test.c @@ -663,8 +663,7 @@ static void test_acpi_one(const char *params, test_data= *data) data->uefi_fl1, data->uefi_fl2, data->cd, params ? params : ""= ); = } else { - /* Disable kernel irqchip to be able to override apic irq0. */ - args =3D g_strdup_printf("-machine %s,kernel-irqchip=3Doff %s -acc= el tcg " + args =3D g_strdup_printf("-machine %s %s -accel tcg " "-net none -display none %s " "-drive id=3Dhd0,if=3Dnone,file=3D%s,format=3Draw " "-device %s,drive=3Dhd0 ", -- = 2.26.2 -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1896263 Title: The bios-tables-test test causes QEMU to crash (Assertion `ret =3D=3D cpu->kvm_msr_buf->nmsrs' failed) on AMD processors Status in QEMU: New Bug description: QEMU release version: Any recent version (5.0.0, 5.1.0, git master) Host CPU: AMD Ryzen 3900X The following backtrace is from commit e883b492c221241d28aaa322c61536436090538a. QTEST_QEMU_BINARY=3D./build/qemu-system-x86_64 gdb ./build/tests/qtest/bi= os-tables-test GNU gdb (GDB) 9.2 Copyright (C) 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-unknown-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from ./build/tests/qtest/bios-tables-test... (gdb) run Starting program: /home/mcournoyer/src/qemu/build/tests/qtest/bios-tables= -test = [Thread debugging using libthread_db enabled] Using host libthread_db library "/gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a= 0cr-glibc-2.31/lib/libthread_db.so.1". [New Thread 0x7ffff7af6700 (LWP 18955)] # random seed: R02S5106b7afa2fd84a0353605795c04ab7d 1..19 # Start of x86_64 tests # Start of acpi tests # starting QEMU: exec ./build/qemu-system-x86_64 -qtest unix:/tmp/qtest-1= 8951.sock -qtest-log /dev/null -chardev socket,path=3D/tmp/qtest-18951.qmp,= id=3Dchar0 -mon chardev=3Dchar0,mode=3Dcontrol -display none -machine pc,ke= rnel-irqchip=3Doff -accel kvm -accel tcg -net none -display none -drive id= =3Dhd0,if=3Dnone,file=3Dtests/acpi-test-disk-R3kbyc,format=3Draw -device id= e-hd,drive=3Dhd0 -accel qtest [Attaching after Thread 0x7ffff7af7900 (LWP 18951) fork to child process = 18956] [New inferior 2 (process 18956)] [Detaching after fork from parent process 18951] [Inferior 1 (process 18951) detached] [Thread debugging using libthread_db enabled] Using host libthread_db library "/gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a= 0cr-glibc-2.31/lib/libthread_db.so.1". [New Thread 0x7ffff7af6700 (LWP 18957)] [Thread 0x7ffff7af6700 (LWP 18957) exited] process 18956 is executing new program: /gnu/store/87kif0bpf0anwbsaw0jvg8= fyciw4sz67-bash-5.0.16/bin/bash process 18956 is executing new program: /home/mcournoyer/src/qemu/build/q= emu-system-x86_64 [Thread debugging using libthread_db enabled] Using host libthread_db library "/gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a= 0cr-glibc-2.31/lib/libthread_db.so.1". [New Thread 0x7ffff48ed700 (LWP 18958)] [New Thread 0x7fffeffff700 (LWP 18960)] [New Thread 0x7fffef61c700 (LWP 18961)] [New Thread 0x7fffed5ff700 (LWP 18962)] qemu-system-x86_64: error: failed to set MSR 0x4b564d02 to 0x0 qemu-system-x86_64: ../target/i386/kvm.c:2714: kvm_buf_set_msrs: Assertio= n `ret =3D=3D cpu->kvm_msr_buf->nmsrs' failed. Thread 2.5 "qemu-system-x86" received signal SIGABRT, Aborted. [Switching to Thread 0x7fffef61c700 (LWP 18961)] 0x00007ffff65dbaba in raise () from /gnu/store/fa6wj5bxkj5ll1d7292a70knmy= l7a0cr-glibc-2.31/lib/libc.so.6 (gdb) taas bt Thread 2.6 (Thread 0x7fffed5ff700 (LWP 18962)): #0 0x00007ffff6770c4d in pthread_cond_timedwait@@GLIBC_2.3.2 () from /gn= u/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/libpthread.so.0 #1 0x0000555555cc8a0e in qemu_sem_timedwait (sem=3Dsem@entry=3D0x5555566= 2f758, ms=3Dms@entry=3D10000) at ../util/qemu-thread-posix.c:282 #2 0x0000555555cd91b5 in worker_thread (opaque=3Dopaque@entry=3D0x555556= 62f6e0) at ../util/thread-pool.c:91 #3 0x0000555555cc7e86 in qemu_thread_start (args=3D) at .= ./util/qemu-thread-posix.c:521 #4 0x00007ffff6769f64 in start_thread () from /gnu/store/fa6wj5bxkj5ll1d= 7292a70knmyl7a0cr-glibc-2.31/lib/libpthread.so.0 #5 0x00007ffff669b9af in clone () from /gnu/store/fa6wj5bxkj5ll1d7292a70= knmyl7a0cr-glibc-2.31/lib/libc.so.6 Thread 2.5 (Thread 0x7fffef61c700 (LWP 18961)): #0 0x00007ffff65dbaba in raise () from /gnu/store/fa6wj5bxkj5ll1d7292a70= knmyl7a0cr-glibc-2.31/lib/libc.so.6 #1 0x00007ffff65dcbf5 in abort () from /gnu/store/fa6wj5bxkj5ll1d7292a70= knmyl7a0cr-glibc-2.31/lib/libc.so.6 #2 0x00007ffff65d470a in __assert_fail_base () from /gnu/store/fa6wj5bxk= j5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/libc.so.6 #3 0x00007ffff65d4782 in __assert_fail () from /gnu/store/fa6wj5bxkj5ll1= d7292a70knmyl7a0cr-glibc-2.31/lib/libc.so.6 #4 0x0000555555a3e979 in kvm_buf_set_msrs (cpu=3D0x555556688a20) at ../t= arget/i386/kvm.c:2714 #5 0x0000555555a438cc in kvm_put_msrs (level=3D3, cpu=3D0x555556688a20) = at ../target/i386/kvm.c:3005 #6 kvm_arch_put_registers (cpu=3Dcpu@entry=3D0x555556688a20, level=3Dlev= el@entry=3D3) at ../target/i386/kvm.c:3989 #7 0x0000555555af7b0e in do_kvm_cpu_synchronize_post_init (cpu=3D0x55555= 6688a20, arg=3D...) at ../accel/kvm/kvm-all.c:2355 #8 0x00005555558ef8e2 in process_queued_cpu_work (cpu=3Dcpu@entry=3D0x55= 5556688a20) at ../cpus-common.c:343 #9 0x0000555555b6ac25 in qemu_wait_io_event_common (cpu=3Dcpu@entry=3D0x= 555556688a20) at ../softmmu/cpus.c:1117 #10 0x0000555555b6ac84 in qemu_wait_io_event (cpu=3Dcpu@entry=3D0x5555566= 88a20) at ../softmmu/cpus.c:1157 #11 0x0000555555b6aec8 in qemu_kvm_cpu_thread_fn (arg=3Darg@entry=3D0x555= 556688a20) at ../softmmu/cpus.c:1193 #12 0x0000555555cc7e86 in qemu_thread_start (args=3D) at .= ./util/qemu-thread-posix.c:521 #13 0x00007ffff6769f64 in start_thread () from /gnu/store/fa6wj5bxkj5ll1d= 7292a70knmyl7a0cr-glibc-2.31/lib/libpthread.so.0 #14 0x00007ffff669b9af in clone () from /gnu/store/fa6wj5bxkj5ll1d7292a70= knmyl7a0cr-glibc-2.31/lib/libc.so.6 Thread 2.4 (Thread 0x7fffeffff700 (LWP 18960)): #0 0x00007ffff66919d9 in poll () from /gnu/store/fa6wj5bxkj5ll1d7292a70k= nmyl7a0cr-glibc-2.31/lib/libc.so.6 #1 0x00007ffff78f0051 in g_main_context_iterate.isra () from /gnu/store/= n1mx1dp0hcrzm1akf8qdqa9gmybzazs2-profile/lib/libglib-2.0.so.0 #2 0x00007ffff78f0392 in g_main_loop_run () from /gnu/store/n1mx1dp0hcrz= m1akf8qdqa9gmybzazs2-profile/lib/libglib-2.0.so.0 #3 0x000055555584b5a1 in iothread_run (opaque=3Dopaque@entry=3D0x5555565= 57720) at ../iothread.c:80 #4 0x0000555555cc7e86 in qemu_thread_start (args=3D) at .= ./util/qemu-thread-posix.c:521 #5 0x00007ffff6769f64 in start_thread () from /gnu/store/fa6wj5bxkj5ll1d= 7292a70knmyl7a0cr-glibc-2.31/lib/libpthread.so.0 #6 0x00007ffff669b9af in clone () from /gnu/store/fa6wj5bxkj5ll1d7292a70= knmyl7a0cr-glibc-2.31/lib/libc.so.6 Thread 2.3 (Thread 0x7ffff48ed700 (LWP 18958)): #0 0x00007ffff66657a1 in clock_nanosleep@GLIBC_2.2.5 () from /gnu/store/= fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/libc.so.6 #1 0x00007ffff666ac03 in nanosleep () from /gnu/store/fa6wj5bxkj5ll1d729= 2a70knmyl7a0cr-glibc-2.31/lib/libc.so.6 #2 0x00007ffff7919cdf in g_usleep () from /gnu/store/n1mx1dp0hcrzm1akf8q= dqa9gmybzazs2-profile/lib/libglib-2.0.so.0 #3 0x0000555555cb3b04 in call_rcu_thread (opaque=3Dopaque@entry=3D0x0) a= t ../util/rcu.c:250 #4 0x0000555555cc7e86 in qemu_thread_start (args=3D) at .= ./util/qemu-thread-posix.c:521 #5 0x00007ffff6769f64 in start_thread () from /gnu/store/fa6wj5bxkj5ll1d= 7292a70knmyl7a0cr-glibc-2.31/lib/libpthread.so.0 #6 0x00007ffff669b9af in clone () from /gnu/store/fa6wj5bxkj5ll1d7292a70= knmyl7a0cr-glibc-2.31/lib/libc.so.6 Thread 2.1 (Thread 0x7ffff48f2c80 (LWP 18956)): #0 0x00007ffff677094c in pthread_cond_wait@@GLIBC_2.3.2 () from /gnu/sto= re/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/lib/libpthread.so.0 #1 0x0000555555cc854f in qemu_cond_wait_impl (cond=3D0x5555563b0020 , mutex=3D0x5555563cd620 , file=3D0x555555db= ad06 "../cpus-common.c", line=3D154) at ../util/qemu-thread-posix.c:174 #2 0x00005555558ef484 in do_run_on_cpu (cpu=3Dcpu@entry=3D0x555556688a20= , func=3Dfunc@entry=3D0x555555af7b00 , da= ta=3D..., mutex=3Dmutex@entry=3D0x5555563cd620 ) at ../c= pus-common.c:154 #3 0x0000555555b6aa7c in run_on_cpu (cpu=3Dcpu@entry=3D0x555556688a20, f= unc=3Dfunc@entry=3D0x555555af7b00 , data= =3D..., data@entry=3D...) at ../softmmu/cpus.c:1085 #4 0x0000555555af8d4e in kvm_cpu_synchronize_post_init (cpu=3Dcpu@entry= =3D0x555556688a20) at ../accel/kvm/kvm-all.c:2361 #5 0x0000555555b6a94a in cpu_synchronize_post_init (cpu=3D0x555556688a20= ) at /home/mcournoyer/src/qemu/include/sysemu/hw_accel.h:55 #6 cpu_synchronize_all_post_init () at ../softmmu/cpus.c:953 #7 0x0000555555b0dca7 in qemu_init (argc=3D, argv=3D, envp=3D) at ../softmmu/vl.c:4387 #8 0x0000555555840609 in main (argc=3D, argv=3D, envp=3D) at ../softmmu/main.c:49 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1896263/+subscriptions