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t=1707256284; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ycq1DKWOHGRISoq+AdX4R7quKU3E+TkylEAGSaqJFSM=; b=J1zRs4I3ISjzjZqouB6nyJ11+qEfSSFm+sfcz1CnXxvvBocate+BnJ0gMp0sqU+NdoKad4 GG24xpdhv2mP6DCA== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , Avihai Horon , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , qemu-stable Subject: [PATCH v3 1/6] migration/multifd: Join the TLS thread Date: Tue, 6 Feb 2024 18:51:13 -0300 Message-Id: <20240206215118.6171-2-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240206215118.6171-1-farosas@suse.de> References: <20240206215118.6171-1-farosas@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Authentication-Results: smtp-out1.suse.de; none X-Spam-Score: 0.70 X-Spamd-Result: default: False [0.70 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; 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charset="utf-8" We're currently leaking the resources of the TLS thread by not joining it and also overwriting the p->thread pointer altogether. Fixes: a1af605bd5 ("migration/multifd: fix hangup with TLS-Multifd due to b= locking handshake") Cc: qemu-stable Reviewed-by: Peter Xu Signed-off-by: Fabiano Rosas --- migration/multifd.c | 8 +++++++- migration/multifd.h | 2 ++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/migration/multifd.c b/migration/multifd.c index ef13e2e781..8195c1daf3 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -630,6 +630,10 @@ static void multifd_send_terminate_threads(void) for (i =3D 0; i < migrate_multifd_channels(); i++) { MultiFDSendParams *p =3D &multifd_send_state->params[i]; =20 + if (p->tls_thread_created) { + qemu_thread_join(&p->tls_thread); + } + if (p->running) { qemu_thread_join(&p->thread); } @@ -921,7 +925,9 @@ static bool multifd_tls_channel_connect(MultiFDSendPara= ms *p, trace_multifd_tls_outgoing_handshake_start(ioc, tioc, hostname); qio_channel_set_name(QIO_CHANNEL(tioc), "multifd-tls-outgoing"); p->c =3D QIO_CHANNEL(tioc); - qemu_thread_create(&p->thread, "multifd-tls-handshake-worker", + + p->tls_thread_created =3D true; + qemu_thread_create(&p->tls_thread, "multifd-tls-handshake-worker", multifd_tls_handshake_thread, p, QEMU_THREAD_JOINABLE); return true; diff --git a/migration/multifd.h b/migration/multifd.h index 78a2317263..720c9d50db 100644 --- a/migration/multifd.h +++ b/migration/multifd.h @@ -73,6 +73,8 @@ typedef struct { char *name; /* channel thread id */ QemuThread thread; + QemuThread tls_thread; + bool tls_thread_created; /* communication channel */ QIOChannel *c; /* is the yank function registered */ --=20 2.35.3