From patchwork Sat Feb 15 08:32:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pan Nengyuan X-Patchwork-Id: 1238470 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com 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 ozlabs.org (Postfix) with ESMTPS id 48KNQ94TnLz9sNg for ; Sat, 15 Feb 2020 19:17:03 +1100 (AEDT) Received: from localhost ([::1]:49146 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j2sdG-0004fV-UB for incoming@patchwork.ozlabs.org; Sat, 15 Feb 2020 03:16:58 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33211) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j2scw-0004fG-Gy for qemu-devel@nongnu.org; Sat, 15 Feb 2020 03:16:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j2scv-00067x-Bg for qemu-devel@nongnu.org; Sat, 15 Feb 2020 03:16:38 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:59704 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j2scu-0005oZ-Vp; Sat, 15 Feb 2020 03:16:37 -0500 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id C7D909234CD5B4CCFCA7; Sat, 15 Feb 2020 16:16:22 +0800 (CST) Received: from localhost.localdomain (10.175.104.216) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.439.0; Sat, 15 Feb 2020 16:16:17 +0800 From: To: , , Subject: [PATCH 1/2] s390x: fix memleaks in cpu_finalize Date: Sat, 15 Feb 2020 16:32:03 +0800 Message-ID: <20200215083203.5064-1-pannengyuan@huawei.com> X-Mailer: git-send-email 2.18.2 MIME-Version: 1.0 X-Originating-IP: [10.175.104.216] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.35 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: qemu-s390x@nongnu.org, euler.robot@huawei.com, Pan Nengyuan , qemu-devel@nongnu.org, zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Pan Nengyuan This patch fix memleaks when we call tests/qtest/cpu-plug-test on s390x. The leak stack is as follow: Direct leak of 48 byte(s) in 1 object(s) allocated from: #0 0x7fb43c7cd970 in __interceptor_calloc (/lib64/libasan.so.5+0xef970) #1 0x7fb43be2149d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5249d) #2 0x558ba96da716 in timer_new_full /mnt/sdb/qemu-new/qemu/include/qemu/timer.h:530 #3 0x558ba96da716 in timer_new /mnt/sdb/qemu-new/qemu/include/qemu/timer.h:551 #4 0x558ba96da716 in timer_new_ns /mnt/sdb/qemu-new/qemu/include/qemu/timer.h:569 #5 0x558ba96da716 in s390_cpu_initfn /mnt/sdb/qemu-new/qemu/target/s390x/cpu.c:285 #6 0x558ba9c969ab in object_init_with_type /mnt/sdb/qemu-new/qemu/qom/object.c:372 #7 0x558ba9c9eb5f in object_initialize_with_type /mnt/sdb/qemu-new/qemu/qom/object.c:516 #8 0x558ba9c9f053 in object_new_with_type /mnt/sdb/qemu-new/qemu/qom/object.c:684 #9 0x558ba967ede6 in s390x_new_cpu /mnt/sdb/qemu-new/qemu/hw/s390x/s390-virtio-ccw.c:64 #10 0x558ba99764b3 in hmp_cpu_add /mnt/sdb/qemu-new/qemu/hw/core/machine-hmp-cmds.c:57 #11 0x558ba9b1c27f in handle_hmp_command /mnt/sdb/qemu-new/qemu/monitor/hmp.c:1082 #12 0x558ba96c1b02 in qmp_human_monitor_command /mnt/sdb/qemu-new/qemu/monitor/misc.c:142 Reported-by: Euler Robot Signed-off-by: Pan Nengyuan Reviewed-by: David Hildenbrand --- target/s390x/cpu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index cf84d307c6..fff793a4eb 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -294,6 +294,10 @@ static void s390_cpu_finalize(Object *obj) qemu_unregister_reset(s390_cpu_machine_reset_cb, cpu); g_free(cpu->irqstate); + timer_del(cpu->env.tod_timer); + timer_del(cpu->env.cpu_timer); + timer_free(cpu->env.tod_timer); + timer_free(cpu->env.cpu_timer); #endif } From patchwork Sat Feb 15 08:37:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Pan Nengyuan X-Patchwork-Id: 1238471 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com 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 ozlabs.org (Postfix) with ESMTPS id 48KNXD5zCMz9s29 for ; Sat, 15 Feb 2020 19:22:19 +1100 (AEDT) Received: from localhost ([::1]:49192 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j2siN-00077f-U6 for incoming@patchwork.ozlabs.org; Sat, 15 Feb 2020 03:22:15 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33822) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j2si4-00073u-UW for qemu-devel@nongnu.org; Sat, 15 Feb 2020 03:21:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j2si3-0001A7-Hj for qemu-devel@nongnu.org; Sat, 15 Feb 2020 03:21:56 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:36942 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j2si0-00014E-0y; Sat, 15 Feb 2020 03:21:52 -0500 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id BD29D85176AFA43D24D7; Sat, 15 Feb 2020 16:21:46 +0800 (CST) Received: from localhost.localdomain (10.175.104.216) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.439.0; Sat, 15 Feb 2020 16:21:36 +0800 From: To: , , , , , Subject: [PATCH 2/2] hw: move timer_new from init() into realize() to avoid memleaks Date: Sat, 15 Feb 2020 16:37:15 +0800 Message-ID: <20200215083715.5147-1-pannengyuan@huawei.com> X-Mailer: git-send-email 2.18.2 MIME-Version: 1.0 X-Originating-IP: [10.175.104.216] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.35 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.zhanghailiang@huawei.com, Pan Nengyuan , qemu-devel@nongnu.org, qemu-arm@nongnu.org, qemu-ppc@nongnu.org, euler.robot@huawei.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Pan Nengyuan There are some memleaks when we call 'device_list_properties'. This patch move timer_new from init into realize to fix it. Meanwhile, do the null check in mos6522_reset() to avoid null deref if we move timer_new into realize(). Reported-by: Euler Robot Signed-off-by: Pan Nengyuan Reviewed-by: Philippe Mathieu-Daudé --- hw/arm/pxa2xx.c | 17 +++++++++++------ hw/arm/spitz.c | 8 +++++++- hw/arm/strongarm.c | 18 ++++++++++++------ hw/misc/mos6522.c | 14 ++++++++++++-- hw/timer/cadence_ttc.c | 16 +++++++++++----- 5 files changed, 53 insertions(+), 20 deletions(-) diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c index b33f8f1351..56a36202d7 100644 --- a/hw/arm/pxa2xx.c +++ b/hw/arm/pxa2xx.c @@ -1134,18 +1134,22 @@ static void pxa2xx_rtc_init(Object *obj) s->last_rtcpicr = 0; s->last_hz = s->last_sw = s->last_pi = qemu_clock_get_ms(rtc_clock); + sysbus_init_irq(dev, &s->rtc_irq); + + memory_region_init_io(&s->iomem, obj, &pxa2xx_rtc_ops, s, + "pxa2xx-rtc", 0x10000); + sysbus_init_mmio(dev, &s->iomem); +} + +static void pxa2xx_rtc_realize(DeviceState *dev, Error **errp) +{ + PXA2xxRTCState *s = PXA2XX_RTC(dev); s->rtc_hz = timer_new_ms(rtc_clock, pxa2xx_rtc_hz_tick, s); s->rtc_rdal1 = timer_new_ms(rtc_clock, pxa2xx_rtc_rdal1_tick, s); s->rtc_rdal2 = timer_new_ms(rtc_clock, pxa2xx_rtc_rdal2_tick, s); s->rtc_swal1 = timer_new_ms(rtc_clock, pxa2xx_rtc_swal1_tick, s); s->rtc_swal2 = timer_new_ms(rtc_clock, pxa2xx_rtc_swal2_tick, s); s->rtc_pi = timer_new_ms(rtc_clock, pxa2xx_rtc_pi_tick, s); - - sysbus_init_irq(dev, &s->rtc_irq); - - memory_region_init_io(&s->iomem, obj, &pxa2xx_rtc_ops, s, - "pxa2xx-rtc", 0x10000); - sysbus_init_mmio(dev, &s->iomem); } static int pxa2xx_rtc_pre_save(void *opaque) @@ -1203,6 +1207,7 @@ static void pxa2xx_rtc_sysbus_class_init(ObjectClass *klass, void *data) dc->desc = "PXA2xx RTC Controller"; dc->vmsd = &vmstate_pxa2xx_rtc_regs; + dc->realize = pxa2xx_rtc_realize; } static const TypeInfo pxa2xx_rtc_sysbus_info = { diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c index e001088103..cbfa6934cf 100644 --- a/hw/arm/spitz.c +++ b/hw/arm/spitz.c @@ -524,11 +524,16 @@ static void spitz_keyboard_init(Object *obj) spitz_keyboard_pre_map(s); - s->kbdtimer = timer_new_ns(QEMU_CLOCK_VIRTUAL, spitz_keyboard_tick, s); qdev_init_gpio_in(dev, spitz_keyboard_strobe, SPITZ_KEY_STROBE_NUM); qdev_init_gpio_out(dev, s->sense, SPITZ_KEY_SENSE_NUM); } +static void spitz_keyboard_realize(DeviceState *dev, Error **errp) +{ + SpitzKeyboardState *s = SPITZ_KEYBOARD(dev); + s->kbdtimer = timer_new_ns(QEMU_CLOCK_VIRTUAL, spitz_keyboard_tick, s); +} + /* LCD backlight controller */ #define LCDTG_RESCTL 0x00 @@ -1115,6 +1120,7 @@ static void spitz_keyboard_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); dc->vmsd = &vmstate_spitz_kbd; + dc->realize = spitz_keyboard_realize; } static const TypeInfo spitz_keyboard_info = { diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c index cd8a99aaf2..3010d765bb 100644 --- a/hw/arm/strongarm.c +++ b/hw/arm/strongarm.c @@ -399,9 +399,6 @@ static void strongarm_rtc_init(Object *obj) s->last_rcnr = (uint32_t) mktimegm(&tm); s->last_hz = qemu_clock_get_ms(rtc_clock); - s->rtc_alarm = timer_new_ms(rtc_clock, strongarm_rtc_alarm_tick, s); - s->rtc_hz = timer_new_ms(rtc_clock, strongarm_rtc_hz_tick, s); - sysbus_init_irq(dev, &s->rtc_irq); sysbus_init_irq(dev, &s->rtc_hz_irq); @@ -410,6 +407,13 @@ static void strongarm_rtc_init(Object *obj) sysbus_init_mmio(dev, &s->iomem); } +static void strongarm_rtc_realize(DeviceState *dev, Error **errp) +{ + StrongARMRTCState *s = STRONGARM_RTC(dev); + s->rtc_alarm = timer_new_ms(rtc_clock, strongarm_rtc_alarm_tick, s); + s->rtc_hz = timer_new_ms(rtc_clock, strongarm_rtc_hz_tick, s); +} + static int strongarm_rtc_pre_save(void *opaque) { StrongARMRTCState *s = opaque; @@ -451,6 +455,7 @@ static void strongarm_rtc_sysbus_class_init(ObjectClass *klass, void *data) dc->desc = "StrongARM RTC Controller"; dc->vmsd = &vmstate_strongarm_rtc_regs; + dc->realize = strongarm_rtc_realize; } static const TypeInfo strongarm_rtc_sysbus_info = { @@ -1240,15 +1245,16 @@ static void strongarm_uart_init(Object *obj) "uart", 0x10000); sysbus_init_mmio(dev, &s->iomem); sysbus_init_irq(dev, &s->irq); - - s->rx_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, strongarm_uart_rx_to, s); - s->tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, strongarm_uart_tx, s); } static void strongarm_uart_realize(DeviceState *dev, Error **errp) { StrongARMUARTState *s = STRONGARM_UART(dev); + s->rx_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, + strongarm_uart_rx_to, + s); + s->tx_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, strongarm_uart_tx, s); qemu_chr_fe_set_handlers(&s->chr, strongarm_uart_can_receive, strongarm_uart_receive, diff --git a/hw/misc/mos6522.c b/hw/misc/mos6522.c index 19e154b870..980eda7599 100644 --- a/hw/misc/mos6522.c +++ b/hw/misc/mos6522.c @@ -465,11 +465,15 @@ static void mos6522_reset(DeviceState *dev) s->timers[0].frequency = s->frequency; s->timers[0].latch = 0xffff; set_counter(s, &s->timers[0], 0xffff); - timer_del(s->timers[0].timer); + if (s->timers[0].timer) { + timer_del(s->timers[0].timer); + } s->timers[1].frequency = s->frequency; s->timers[1].latch = 0xffff; - timer_del(s->timers[1].timer); + if (s->timers[1].timer) { + timer_del(s->timers[1].timer); + } } static void mos6522_init(Object *obj) @@ -485,6 +489,11 @@ static void mos6522_init(Object *obj) for (i = 0; i < ARRAY_SIZE(s->timers); i++) { s->timers[i].index = i; } +} + +static void mos6522_realize(DeviceState *dev, Error **errp) +{ + MOS6522State *s = MOS6522(dev); s->timers[0].timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, mos6522_timer1, s); s->timers[1].timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, mos6522_timer2, s); @@ -502,6 +511,7 @@ static void mos6522_class_init(ObjectClass *oc, void *data) dc->reset = mos6522_reset; dc->vmsd = &vmstate_mos6522; + dc->realize = mos6522_realize; device_class_set_props(dc, mos6522_properties); mdc->parent_reset = dc->reset; mdc->set_sr_int = mos6522_set_sr_int; diff --git a/hw/timer/cadence_ttc.c b/hw/timer/cadence_ttc.c index 5e3128c1e3..b0ba6b2bba 100644 --- a/hw/timer/cadence_ttc.c +++ b/hw/timer/cadence_ttc.c @@ -412,16 +412,21 @@ static void cadence_timer_init(uint32_t freq, CadenceTimerState *s) static void cadence_ttc_init(Object *obj) { CadenceTTCState *s = CADENCE_TTC(obj); + + memory_region_init_io(&s->iomem, obj, &cadence_ttc_ops, s, + "timer", 0x1000); + sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem); +} + +static void cadence_ttc_realize(DeviceState *dev, Error **errp) +{ + CadenceTTCState *s = CADENCE_TTC(dev); int i; for (i = 0; i < 3; ++i) { cadence_timer_init(133000000, &s->timer[i]); - sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->timer[i].irq); + sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->timer[i].irq); } - - memory_region_init_io(&s->iomem, obj, &cadence_ttc_ops, s, - "timer", 0x1000); - sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem); } static int cadence_timer_pre_save(void *opaque) @@ -479,6 +484,7 @@ static void cadence_ttc_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); dc->vmsd = &vmstate_cadence_ttc; + dc->realize = cadence_ttc_realize; } static const TypeInfo cadence_ttc_info = {