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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=134.134.136.100; envelope-from=lei.rao@intel.com; helo=mga07.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, 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: "Rao, Lei" , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: "Rao, Lei" This patch fixes the following: #0 __GI_raise (sig=3Dsig@entry=3D6) at ../sysdeps/unix/sysv/linux/rais= e.c:50 #1 0x00007f6ae4559859 in __GI_abort () at abort.c:79 #2 0x0000559aaa386720 in error_exit (err=3D16, msg=3D0x559aaa5973d0 <_= _func__.16227> "qemu_mutex_destroy") at util/qemu-thread-posix.c:36 #3 0x0000559aaa3868c5 in qemu_mutex_destroy (mutex=3D0x559aabffe828) a= t util/qemu-thread-posix.c:69 #4 0x0000559aaa2f93a8 in char_finalize (obj=3D0x559aabffe800) at chard= ev/char.c:285 #5 0x0000559aaa23318a in object_deinit (obj=3D0x559aabffe800, type=3D0= x559aabfd7d20) at qom/object.c:606 #6 0x0000559aaa2331b8 in object_deinit (obj=3D0x559aabffe800, type=3D0= x559aabfd9060) at qom/object.c:610 #7 0x0000559aaa233200 in object_finalize (data=3D0x559aabffe800) at qo= m/object.c:620 #8 0x0000559aaa234202 in object_unref (obj=3D0x559aabffe800) at qom/ob= ject.c:1074 #9 0x0000559aaa2356b6 in object_finalize_child_property (obj=3D0x559aa= c0dac10, name=3D0x559aac778760 "compare0-0", opaque=3D0x559aabffe800) at qo= m/object.c:1584 #10 0x0000559aaa232f70 in object_property_del_all (obj=3D0x559aac0dac10= ) at qom/object.c:557 #11 0x0000559aaa2331ed in object_finalize (data=3D0x559aac0dac10) at qo= m/object.c:619 #12 0x0000559aaa234202 in object_unref (obj=3D0x559aac0dac10) at qom/ob= ject.c:1074 #13 0x0000559aaa2356b6 in object_finalize_child_property (obj=3D0x559aa= c0c75c0, name=3D0x559aac0dadc0 "chardevs", opaque=3D0x559aac0dac10) at qom/= object.c:1584 #14 0x0000559aaa233071 in object_property_del_child (obj=3D0x559aac0c75= c0, child=3D0x559aac0dac10, errp=3D0x0) at qom/object.c:580 #15 0x0000559aaa233155 in object_unparent (obj=3D0x559aac0dac10) at qom= /object.c:599 #16 0x0000559aaa2fb721 in qemu_chr_cleanup () at chardev/char.c:1159 #17 0x0000559aa9f9b110 in main (argc=3D54, argv=3D0x7ffeb62fa998, envp= =3D0x7ffeb62fab50) 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 --- 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 c142c08..5b538f4 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); } =20 +void colo_compare_cleanup(void) +{ + CompareState *tmp =3D NULL; + CompareState *n =3D NULL; + + QTAILQ_FOREACH_SAFE(tmp, &net_compares, next, n) { + object_unparent(OBJECT(tmp)); + } +} + static void colo_compare_finalize(Object *obj) { CompareState *s =3D COLO_COMPARE(obj); diff --git a/net/colo-compare.h b/net/colo-compare.h index 22ddd51..b055270 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); =20 #endif /* QEMU_COLO_COMPARE_H */ diff --git a/net/net.c b/net/net.c index 725a4e1..8fcb2e7 100644 --- a/net/net.c +++ b/net/net.c @@ -53,6 +53,7 @@ #include "sysemu/sysemu.h" #include "sysemu/runstate.h" #include "sysemu/sysemu.h" +#include "net/colo-compare.h" #include "net/filter.h" #include "qapi/string-output-visitor.h" #include "qapi/hmp-output-visitor.h" @@ -1463,6 +1464,9 @@ void net_cleanup(void) { NetClientState *nc; =20 + /*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. */ --=20 1.8.3.1