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spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:43068 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lqXF5-0007VO-LC for qemu-devel@archiver.kernel.org; Tue, 08 Jun 2021 04:37:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35438) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqX8Y-0003zp-Di for qemu-devel@nongnu.org; Tue, 08 Jun 2021 04:31:02 -0400 Received: from mga14.intel.com ([192.55.52.115]:24323) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqX8R-0000Fj-Lr for qemu-devel@nongnu.org; Tue, 08 Jun 2021 04:31:02 -0400 IronPort-SDR: yC61eIi7hO3mwyeWAbAd5gGjPcpP54YrUk0Zxod99wZ8HT3bJXknL5bnCXxiBkzCvpSp8TYoev X/ObpOEyAK8A== X-IronPort-AV: E=McAfee;i="6200,9189,10008"; a="204614542" X-IronPort-AV: E=Sophos;i="5.83,257,1616482800"; d="scan'208";a="204614542" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jun 2021 01:30:52 -0700 IronPort-SDR: pO2RaeENCvA3pr5faR7y/SNb/eqfnwB77wsNwGL9zgEqipxl27v0D1UAzny3PXnUalq2feimTZ F4/1PTQN0qhA== X-IronPort-AV: E=Sophos;i="5.83,257,1616482800"; d="scan'208";a="481862950" Received: from unknown (HELO localhost.localdomain) ([10.239.13.19]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jun 2021 01:30:50 -0700 From: Zhang Chen To: Jason Wang , qemu-dev Subject: [PATCH 6/7] Add the function of colo_compare_cleanup Date: Tue, 8 Jun 2021 16:23:30 +0800 Message-Id: <20210608082331.1949117-7-chen.zhang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210608082331.1949117-1-chen.zhang@intel.com> References: <20210608082331.1949117-1-chen.zhang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=192.55.52.115; envelope-from=chen.zhang@intel.com; helo=mga14.intel.com X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, 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: Zhang Chen , "Rao, Lei" , Lukas Straub , Li Zhijian , Zhang Chen Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: "Rao, Lei" This patch fixes the following: #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 #1 0x00007f6ae4559859 in __GI_abort () at abort.c:79 #2 0x0000559aaa386720 in error_exit (err=16, msg=0x559aaa5973d0 <__func__.16227> "qemu_mutex_destroy") at util/qemu-thread-posix.c:36 #3 0x0000559aaa3868c5 in qemu_mutex_destroy (mutex=0x559aabffe828) at util/qemu-thread-posix.c:69 #4 0x0000559aaa2f93a8 in char_finalize (obj=0x559aabffe800) at chardev/char.c:285 #5 0x0000559aaa23318a in object_deinit (obj=0x559aabffe800, type=0x559aabfd7d20) at qom/object.c:606 #6 0x0000559aaa2331b8 in object_deinit (obj=0x559aabffe800, type=0x559aabfd9060) at qom/object.c:610 #7 0x0000559aaa233200 in object_finalize (data=0x559aabffe800) at qom/object.c:620 #8 0x0000559aaa234202 in object_unref (obj=0x559aabffe800) at qom/object.c:1074 #9 0x0000559aaa2356b6 in object_finalize_child_property (obj=0x559aac0dac10, name=0x559aac778760 "compare0-0", opaque=0x559aabffe800) at qom/object.c:1584 #10 0x0000559aaa232f70 in object_property_del_all (obj=0x559aac0dac10) at qom/object.c:557 #11 0x0000559aaa2331ed in object_finalize (data=0x559aac0dac10) at qom/object.c:619 #12 0x0000559aaa234202 in object_unref (obj=0x559aac0dac10) at qom/object.c:1074 #13 0x0000559aaa2356b6 in object_finalize_child_property (obj=0x559aac0c75c0, name=0x559aac0dadc0 "chardevs", opaque=0x559aac0dac10) at qom/object.c:1584 #14 0x0000559aaa233071 in object_property_del_child (obj=0x559aac0c75c0, child=0x559aac0dac10, errp=0x0) at qom/object.c:580 #15 0x0000559aaa233155 in object_unparent (obj=0x559aac0dac10) at qom/object.c:599 #16 0x0000559aaa2fb721 in qemu_chr_cleanup () at chardev/char.c:1159 #17 0x0000559aa9f9b110 in main (argc=54, argv=0x7ffeb62fa998, envp=0x7ffeb62fab50) at vl.c:4539 When chardev is cleaned up, chr_write_lock needs to be destroyed. But the colo-compare module is not cleaned up normally before it when the guest poweroff. It is holding chr_write_lock at this time. This will cause qemu crash.So we add the function of colo_compare_cleanup() before qemu_chr_cleanup() to fix the bug. Signed-off-by: Lei Rao Reviewed-by: Zhang Chen Reviewed-by: Lukas Straub Tested-by: Lukas Straub Signed-off-by: Zhang Chen --- net/colo-compare.c | 10 ++++++++++ net/colo-compare.h | 1 + net/net.c | 4 ++++ 3 files changed, 15 insertions(+) diff --git a/net/colo-compare.c b/net/colo-compare.c index c142c08dc6..5b538f4e0b 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -1402,6 +1402,16 @@ static void colo_compare_init(Object *obj) compare_set_vnet_hdr); } +void colo_compare_cleanup(void) +{ + CompareState *tmp = NULL; + CompareState *n = NULL; + + QTAILQ_FOREACH_SAFE(tmp, &net_compares, next, n) { + object_unparent(OBJECT(tmp)); + } +} + static void colo_compare_finalize(Object *obj) { CompareState *s = COLO_COMPARE(obj); diff --git a/net/colo-compare.h b/net/colo-compare.h index 22ddd512e2..b055270da2 100644 --- a/net/colo-compare.h +++ b/net/colo-compare.h @@ -20,5 +20,6 @@ void colo_notify_compares_event(void *opaque, int event, Error **errp); void colo_compare_register_notifier(Notifier *notify); void colo_compare_unregister_notifier(Notifier *notify); +void colo_compare_cleanup(void); #endif /* QEMU_COLO_COMPARE_H */ diff --git a/net/net.c b/net/net.c index 2a472604ec..76bbb7c31b 100644 --- a/net/net.c +++ b/net/net.c @@ -52,6 +52,7 @@ #include "qapi/error.h" #include "qapi/opts-visitor.h" #include "sysemu/runstate.h" +#include "net/colo-compare.h" #include "net/filter.h" #include "qapi/string-output-visitor.h" @@ -1402,6 +1403,9 @@ void net_cleanup(void) { NetClientState *nc; + /*cleanup colo compare module for COLO*/ + colo_compare_cleanup(); + /* We may del multiple entries during qemu_del_net_client(), * so QTAILQ_FOREACH_SAFE() is also not safe here. */ -- 2.25.1