From: Oleksandr Andrushchenko <andr2000@gmail.com> To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, airlied@linux.ie, daniel.vetter@intel.com, seanpaul@chromium.org, gustavo@padovan.org, jgross@suse.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com Cc: andr2000@gmail.com, Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Subject: [PATCH 2/9] drm/xen-front: Implement Xen bus state handling Date: Wed, 21 Feb 2018 10:03:35 +0200 [thread overview] Message-ID: <1519200222-20623-3-git-send-email-andr2000@gmail.com> (raw) In-Reply-To: <1519200222-20623-1-git-send-email-andr2000@gmail.com> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Initial handling for Xen bus states: implement Xen bus state machine for the frontend driver according to the state diagram and recovery flow from display para-virtualized protocol: xen/interface/io/displif.h. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> --- drivers/gpu/drm/xen/xen_drm_front.c | 124 +++++++++++++++++++++++++++++++++++- drivers/gpu/drm/xen/xen_drm_front.h | 26 ++++++++ 2 files changed, 149 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/xen/xen_drm_front.h diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c index fd372fb464a1..d0306f9d660d 100644 --- a/drivers/gpu/drm/xen/xen_drm_front.c +++ b/drivers/gpu/drm/xen/xen_drm_front.c @@ -24,19 +24,141 @@ #include <xen/interface/io/displif.h> +#include "xen_drm_front.h" + +static void xen_drv_remove_internal(struct xen_drm_front_info *front_info) +{ +} + +static int backend_on_initwait(struct xen_drm_front_info *front_info) +{ + return 0; +} + +static int backend_on_connected(struct xen_drm_front_info *front_info) +{ + return 0; +} + +static void backend_on_disconnected(struct xen_drm_front_info *front_info) +{ + xenbus_switch_state(front_info->xb_dev, XenbusStateInitialising); +} + static void backend_on_changed(struct xenbus_device *xb_dev, enum xenbus_state backend_state) { + struct xen_drm_front_info *front_info = dev_get_drvdata(&xb_dev->dev); + int ret; + + DRM_DEBUG("Backend state is %s, front is %s\n", + xenbus_strstate(backend_state), + xenbus_strstate(xb_dev->state)); + + switch (backend_state) { + case XenbusStateReconfiguring: + /* fall through */ + case XenbusStateReconfigured: + /* fall through */ + case XenbusStateInitialised: + break; + + case XenbusStateInitialising: + /* recovering after backend unexpected closure */ + backend_on_disconnected(front_info); + break; + + case XenbusStateInitWait: + /* recovering after backend unexpected closure */ + backend_on_disconnected(front_info); + if (xb_dev->state != XenbusStateInitialising) + break; + + ret = backend_on_initwait(front_info); + if (ret < 0) + xenbus_dev_fatal(xb_dev, ret, "initializing frontend"); + else + xenbus_switch_state(xb_dev, XenbusStateInitialised); + break; + + case XenbusStateConnected: + if (xb_dev->state != XenbusStateInitialised) + break; + + ret = backend_on_connected(front_info); + if (ret < 0) + xenbus_dev_fatal(xb_dev, ret, "initializing DRM driver"); + else + xenbus_switch_state(xb_dev, XenbusStateConnected); + break; + + case XenbusStateClosing: + /* + * in this state backend starts freeing resources, + * so let it go into closed state, so we can also + * remove ours + */ + break; + + case XenbusStateUnknown: + /* fall through */ + case XenbusStateClosed: + if (xb_dev->state == XenbusStateClosed) + break; + + backend_on_disconnected(front_info); + break; + } } static int xen_drv_probe(struct xenbus_device *xb_dev, const struct xenbus_device_id *id) { - return 0; + struct xen_drm_front_info *front_info; + + front_info = devm_kzalloc(&xb_dev->dev, + sizeof(*front_info), GFP_KERNEL); + if (!front_info) { + xenbus_dev_fatal(xb_dev, -ENOMEM, "allocating device memory"); + return -ENOMEM; + } + + front_info->xb_dev = xb_dev; + dev_set_drvdata(&xb_dev->dev, front_info); + return xenbus_switch_state(xb_dev, XenbusStateInitialising); } static int xen_drv_remove(struct xenbus_device *dev) { + struct xen_drm_front_info *front_info = dev_get_drvdata(&dev->dev); + int to = 100; + + xenbus_switch_state(dev, XenbusStateClosing); + + /* + * On driver removal it is disconnected from XenBus, + * so no backend state change events come via .otherend_changed + * callback. This prevents us from exiting gracefully, e.g. + * signaling the backend to free event channels, waiting for its + * state to change to XenbusStateClosed and cleaning at our end. + * Normally when front driver removed backend will finally go into + * XenbusStateInitWait state. + * + * Workaround: read backend's state manually and wait with time-out. + */ + while ((xenbus_read_unsigned(front_info->xb_dev->otherend, + "state", XenbusStateUnknown) != XenbusStateInitWait) && + to--) + msleep(10); + + if (!to) + DRM_ERROR("Backend state is %s while removing driver\n", + xenbus_strstate(xenbus_read_unsigned( + front_info->xb_dev->otherend, + "state", XenbusStateUnknown))); + + xen_drv_remove_internal(front_info); + xenbus_frontend_closed(dev); return 0; } diff --git a/drivers/gpu/drm/xen/xen_drm_front.h b/drivers/gpu/drm/xen/xen_drm_front.h new file mode 100644 index 000000000000..8af46850f126 --- /dev/null +++ b/drivers/gpu/drm/xen/xen_drm_front.h @@ -0,0 +1,26 @@ +/* + * Xen para-virtual DRM device + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Copyright (C) 2016-2018 EPAM Systems Inc. + * + * Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> + */ + +#ifndef __XEN_DRM_FRONT_H_ +#define __XEN_DRM_FRONT_H_ + +struct xen_drm_front_info { + struct xenbus_device *xb_dev; +}; + +#endif /* __XEN_DRM_FRONT_H_ */ -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Oleksandr Andrushchenko <andr2000@gmail.com> To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, airlied@linux.ie, daniel.vetter@intel.com, seanpaul@chromium.org, gustavo@padovan.org, jgross@suse.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com Cc: andr2000@gmail.com, Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Subject: [PATCH 2/9] drm/xen-front: Implement Xen bus state handling Date: Wed, 21 Feb 2018 10:03:35 +0200 [thread overview] Message-ID: <1519200222-20623-3-git-send-email-andr2000@gmail.com> (raw) In-Reply-To: <1519200222-20623-1-git-send-email-andr2000@gmail.com> From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Initial handling for Xen bus states: implement Xen bus state machine for the frontend driver according to the state diagram and recovery flow from display para-virtualized protocol: xen/interface/io/displif.h. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> --- drivers/gpu/drm/xen/xen_drm_front.c | 124 +++++++++++++++++++++++++++++++++++- drivers/gpu/drm/xen/xen_drm_front.h | 26 ++++++++ 2 files changed, 149 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/xen/xen_drm_front.h diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c index fd372fb464a1..d0306f9d660d 100644 --- a/drivers/gpu/drm/xen/xen_drm_front.c +++ b/drivers/gpu/drm/xen/xen_drm_front.c @@ -24,19 +24,141 @@ #include <xen/interface/io/displif.h> +#include "xen_drm_front.h" + +static void xen_drv_remove_internal(struct xen_drm_front_info *front_info) +{ +} + +static int backend_on_initwait(struct xen_drm_front_info *front_info) +{ + return 0; +} + +static int backend_on_connected(struct xen_drm_front_info *front_info) +{ + return 0; +} + +static void backend_on_disconnected(struct xen_drm_front_info *front_info) +{ + xenbus_switch_state(front_info->xb_dev, XenbusStateInitialising); +} + static void backend_on_changed(struct xenbus_device *xb_dev, enum xenbus_state backend_state) { + struct xen_drm_front_info *front_info = dev_get_drvdata(&xb_dev->dev); + int ret; + + DRM_DEBUG("Backend state is %s, front is %s\n", + xenbus_strstate(backend_state), + xenbus_strstate(xb_dev->state)); + + switch (backend_state) { + case XenbusStateReconfiguring: + /* fall through */ + case XenbusStateReconfigured: + /* fall through */ + case XenbusStateInitialised: + break; + + case XenbusStateInitialising: + /* recovering after backend unexpected closure */ + backend_on_disconnected(front_info); + break; + + case XenbusStateInitWait: + /* recovering after backend unexpected closure */ + backend_on_disconnected(front_info); + if (xb_dev->state != XenbusStateInitialising) + break; + + ret = backend_on_initwait(front_info); + if (ret < 0) + xenbus_dev_fatal(xb_dev, ret, "initializing frontend"); + else + xenbus_switch_state(xb_dev, XenbusStateInitialised); + break; + + case XenbusStateConnected: + if (xb_dev->state != XenbusStateInitialised) + break; + + ret = backend_on_connected(front_info); + if (ret < 0) + xenbus_dev_fatal(xb_dev, ret, "initializing DRM driver"); + else + xenbus_switch_state(xb_dev, XenbusStateConnected); + break; + + case XenbusStateClosing: + /* + * in this state backend starts freeing resources, + * so let it go into closed state, so we can also + * remove ours + */ + break; + + case XenbusStateUnknown: + /* fall through */ + case XenbusStateClosed: + if (xb_dev->state == XenbusStateClosed) + break; + + backend_on_disconnected(front_info); + break; + } } static int xen_drv_probe(struct xenbus_device *xb_dev, const struct xenbus_device_id *id) { - return 0; + struct xen_drm_front_info *front_info; + + front_info = devm_kzalloc(&xb_dev->dev, + sizeof(*front_info), GFP_KERNEL); + if (!front_info) { + xenbus_dev_fatal(xb_dev, -ENOMEM, "allocating device memory"); + return -ENOMEM; + } + + front_info->xb_dev = xb_dev; + dev_set_drvdata(&xb_dev->dev, front_info); + return xenbus_switch_state(xb_dev, XenbusStateInitialising); } static int xen_drv_remove(struct xenbus_device *dev) { + struct xen_drm_front_info *front_info = dev_get_drvdata(&dev->dev); + int to = 100; + + xenbus_switch_state(dev, XenbusStateClosing); + + /* + * On driver removal it is disconnected from XenBus, + * so no backend state change events come via .otherend_changed + * callback. This prevents us from exiting gracefully, e.g. + * signaling the backend to free event channels, waiting for its + * state to change to XenbusStateClosed and cleaning at our end. + * Normally when front driver removed backend will finally go into + * XenbusStateInitWait state. + * + * Workaround: read backend's state manually and wait with time-out. + */ + while ((xenbus_read_unsigned(front_info->xb_dev->otherend, + "state", XenbusStateUnknown) != XenbusStateInitWait) && + to--) + msleep(10); + + if (!to) + DRM_ERROR("Backend state is %s while removing driver\n", + xenbus_strstate(xenbus_read_unsigned( + front_info->xb_dev->otherend, + "state", XenbusStateUnknown))); + + xen_drv_remove_internal(front_info); + xenbus_frontend_closed(dev); return 0; } diff --git a/drivers/gpu/drm/xen/xen_drm_front.h b/drivers/gpu/drm/xen/xen_drm_front.h new file mode 100644 index 000000000000..8af46850f126 --- /dev/null +++ b/drivers/gpu/drm/xen/xen_drm_front.h @@ -0,0 +1,26 @@ +/* + * Xen para-virtual DRM device + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Copyright (C) 2016-2018 EPAM Systems Inc. + * + * Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> + */ + +#ifndef __XEN_DRM_FRONT_H_ +#define __XEN_DRM_FRONT_H_ + +struct xen_drm_front_info { + struct xenbus_device *xb_dev; +}; + +#endif /* __XEN_DRM_FRONT_H_ */ -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2018-02-21 8:04 UTC|newest] Thread overview: 165+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-02-21 8:03 [PATCH 0/9] drm/xen-front: Add support for Xen PV display frontend Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 1/9] drm/xen-front: Introduce Xen para-virtualized frontend driver Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:19 ` Juergen Gross 2018-02-21 8:19 ` Juergen Gross 2018-02-21 8:47 ` Oleksandr Andrushchenko 2018-02-21 8:47 ` Oleksandr Andrushchenko 2018-02-21 8:47 ` Oleksandr Andrushchenko 2018-02-21 9:09 ` Juergen Gross 2018-02-21 9:09 ` Juergen Gross 2018-02-21 9:11 ` Oleksandr Andrushchenko 2018-02-21 9:11 ` Oleksandr Andrushchenko 2018-02-21 9:11 ` Oleksandr Andrushchenko 2018-02-21 9:17 ` [Xen-devel] " Roger Pau Monné 2018-02-21 9:17 ` Roger Pau Monné 2018-02-21 9:42 ` [Xen-devel] " Oleksandr Andrushchenko 2018-02-21 9:42 ` Oleksandr Andrushchenko 2018-02-21 10:19 ` Roger Pau Monné 2018-02-21 10:19 ` Roger Pau Monné 2018-02-21 10:25 ` Oleksandr Andrushchenko 2018-02-21 10:25 ` [Xen-devel] " Oleksandr Andrushchenko 2018-02-21 10:25 ` Oleksandr Andrushchenko 2018-02-21 9:42 ` Oleksandr Andrushchenko 2018-02-22 22:23 ` Boris Ostrovsky 2018-02-22 22:23 ` Boris Ostrovsky 2018-02-23 6:37 ` Oleksandr Andrushchenko 2018-02-23 6:37 ` Oleksandr Andrushchenko 2018-02-23 14:39 ` Boris Ostrovsky 2018-02-23 14:39 ` Boris Ostrovsky 2018-02-23 14:51 ` Oleksandr Andrushchenko 2018-02-23 14:51 ` Oleksandr Andrushchenko 2018-02-23 14:51 ` Oleksandr Andrushchenko 2018-02-23 6:37 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko [this message] 2018-02-21 8:03 ` [PATCH 2/9] drm/xen-front: Implement Xen bus state handling Oleksandr Andrushchenko 2018-02-21 8:23 ` Juergen Gross 2018-02-21 8:23 ` Juergen Gross 2018-02-21 8:50 ` Oleksandr Andrushchenko 2018-02-21 8:50 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 3/9] drm/xen-front: Read driver configuration from Xen store Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-22 23:20 ` Boris Ostrovsky 2018-02-22 23:20 ` Boris Ostrovsky 2018-02-23 6:46 ` Oleksandr Andrushchenko 2018-02-23 6:46 ` Oleksandr Andrushchenko 2018-02-23 6:46 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 4/9] drm/xen-front: Implement Xen event channel handling Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-22 23:50 ` Boris Ostrovsky 2018-02-22 23:50 ` Boris Ostrovsky 2018-02-23 7:00 ` Oleksandr Andrushchenko 2018-02-23 7:00 ` Oleksandr Andrushchenko 2018-02-23 7:00 ` Oleksandr Andrushchenko 2018-02-23 14:44 ` Boris Ostrovsky 2018-02-23 14:44 ` Boris Ostrovsky 2018-02-23 14:49 ` Oleksandr Andrushchenko 2018-02-23 14:49 ` Oleksandr Andrushchenko 2018-02-23 14:49 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 5/9] drm/xen-front: Implement handling of shared display buffers Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-23 0:25 ` Boris Ostrovsky 2018-02-23 0:25 ` Boris Ostrovsky 2018-02-23 7:53 ` Oleksandr Andrushchenko 2018-02-23 7:53 ` Oleksandr Andrushchenko 2018-02-23 14:36 ` Boris Ostrovsky 2018-02-23 14:36 ` Boris Ostrovsky 2018-02-23 14:45 ` Oleksandr Andrushchenko 2018-02-23 14:45 ` Oleksandr Andrushchenko 2018-02-23 14:45 ` Oleksandr Andrushchenko 2018-02-23 7:53 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 6/9] drm/xen-front: Introduce DRM/KMS virtual display driver Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-23 15:12 ` Boris Ostrovsky 2018-02-23 15:12 ` Boris Ostrovsky 2018-02-23 15:19 ` Oleksandr Andrushchenko 2018-02-23 15:19 ` Oleksandr Andrushchenko 2018-02-23 15:19 ` Oleksandr Andrushchenko 2018-03-05 9:13 ` Daniel Vetter 2018-03-05 9:13 ` Daniel Vetter 2018-03-05 9:19 ` Oleksandr Andrushchenko 2018-03-05 9:19 ` Oleksandr Andrushchenko 2018-03-05 9:19 ` Oleksandr Andrushchenko 2018-03-05 9:13 ` Daniel Vetter 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 7/9] drm/xen-front: Implement KMS/connector handling Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-03-05 9:23 ` Daniel Vetter 2018-03-05 9:23 ` Daniel Vetter 2018-03-05 12:59 ` Oleksandr Andrushchenko 2018-03-05 12:59 ` Oleksandr Andrushchenko 2018-03-06 7:22 ` Daniel Vetter 2018-03-06 7:22 ` Daniel Vetter 2018-03-06 7:22 ` Daniel Vetter 2018-03-06 7:29 ` Oleksandr Andrushchenko 2018-03-06 7:29 ` Oleksandr Andrushchenko 2018-03-06 7:29 ` Oleksandr Andrushchenko 2018-03-05 12:59 ` Oleksandr Andrushchenko 2018-03-05 9:23 ` Daniel Vetter 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 8/9] drm/xen-front: Implement GEM operations Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-23 15:26 ` Boris Ostrovsky 2018-02-23 15:26 ` Boris Ostrovsky 2018-02-23 15:35 ` Oleksandr Andrushchenko 2018-02-23 15:35 ` Oleksandr Andrushchenko 2018-02-26 23:47 ` Boris Ostrovsky 2018-02-27 6:52 ` Oleksandr Andrushchenko 2018-02-27 6:52 ` Oleksandr Andrushchenko 2018-02-27 6:52 ` Oleksandr Andrushchenko 2018-02-28 19:46 ` Boris Ostrovsky 2018-02-28 19:46 ` Boris Ostrovsky 2018-02-28 19:52 ` Oleksandr Andrushchenko 2018-02-28 19:52 ` Oleksandr Andrushchenko 2018-02-28 19:52 ` Oleksandr Andrushchenko 2018-02-26 23:47 ` Boris Ostrovsky 2018-03-05 9:32 ` Daniel Vetter 2018-03-05 9:32 ` Daniel Vetter 2018-03-05 9:32 ` Daniel Vetter 2018-03-05 13:46 ` Oleksandr Andrushchenko 2018-03-05 13:46 ` Oleksandr Andrushchenko 2018-03-05 13:46 ` Oleksandr Andrushchenko 2018-03-06 7:26 ` Daniel Vetter 2018-03-06 7:43 ` Oleksandr Andrushchenko 2018-03-06 7:43 ` Oleksandr Andrushchenko 2018-03-06 7:26 ` Daniel Vetter 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-21 8:03 ` [PATCH 9/9] drm/xen-front: Implement communication with backend Oleksandr Andrushchenko 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-03-05 9:25 ` Daniel Vetter 2018-03-05 9:25 ` Daniel Vetter 2018-03-05 9:25 ` Daniel Vetter 2018-03-05 9:30 ` Oleksandr Andrushchenko 2018-03-05 9:30 ` Oleksandr Andrushchenko 2018-03-06 9:26 ` Daniel Vetter 2018-03-06 9:26 ` Daniel Vetter 2018-03-06 9:45 ` Oleksandr Andrushchenko 2018-03-06 9:45 ` Oleksandr Andrushchenko 2018-03-06 9:26 ` Daniel Vetter 2018-02-21 8:03 ` Oleksandr Andrushchenko 2018-02-26 8:21 ` [PATCH 0/9] drm/xen-front: Add support for Xen PV display frontend Oleksandr Andrushchenko 2018-02-26 8:21 ` Oleksandr Andrushchenko 2018-02-27 12:40 ` Oleksandr Andrushchenko 2018-02-27 12:40 ` Oleksandr Andrushchenko 2018-02-27 12:40 ` Oleksandr Andrushchenko 2018-02-28 14:08 ` [Xen-devel] " Julien Grall 2018-03-01 1:42 ` Stefano Stabellini 2018-03-01 1:42 ` [Xen-devel] " Stefano Stabellini 2018-03-01 1:42 ` Stefano Stabellini 2018-02-28 14:08 ` Julien Grall 2018-03-01 8:26 ` Gerd Hoffmann 2018-03-01 8:26 ` Gerd Hoffmann 2018-03-01 8:26 ` Gerd Hoffmann 2018-03-01 8:49 ` Oleksandr Andrushchenko 2018-03-01 8:49 ` Oleksandr Andrushchenko 2018-03-01 8:49 ` Oleksandr Andrushchenko 2018-02-26 8:21 ` Oleksandr Andrushchenko 2018-03-01 1:14 ` Stefano Stabellini 2018-03-01 1:14 ` Stefano Stabellini 2018-03-01 1:14 ` Stefano Stabellini
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