search for: 1127,10

...isconnected; + if (!drm_kms_helper_is_poll_worker()) { + r = pm_runtime_get_sync(connector->dev->dev); + if (r < 0) + return connector_status_disconnected; + } if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) { ret = connector->status; @@ -1115,8 +1127,10 @@ amdgpu_connector_dvi_detect(struct drm_connector *connector, bool force) amdgpu_connector_update_scratch_regs(connector, ret); exit: - pm_runtime_mark_last_busy(connector->dev->dev); - pm_runtime_put_autosuspend(connector->dev->dev); + if (!drm_kms_helper_is_poll_worker()) {...

...@ void handle_io(void) } } + xcg_handle = xc_gnttab_open(NULL, 0); + if (xcg_handle == NULL) { + dolog(LOG_DEBUG, "Failed to open xcg handle: %d (%s)", + errno, strerror(errno)); + } + + enum_domains(); + for (;;) { struct domain *d, *n; int max_fd = -1; @@ -1097,6 +1127,10 @@ void handle_io(void) xc_evtchn_close(xce_handle); xce_handle = NULL; } + if (xcg_handle != NULL) { + xc_gnttab_close(xcg_handle); + xcg_handle = NULL; + } log_hv_evtchn = -1; } diff --git a/tools/console/daemon/io.h b/tools/console/daemon/io.h index 8fa04b6..f658bfc 100644 ---...

Fix a deadlock on hybrid graphics laptops that's been present since 2013: DRM drivers poll connectors in 10 sec intervals. The poll worker is stopped on ->runtime_suspend with cancel_delayed_work_sync(). However the poll worker invokes the DRM drivers' ->detect callbacks, which call pm_runtime_get_sync(). If the poll worker starts after runtime suspend has begun,