From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony PERARD Subject: [PATCH V3] libxl: Increase device model startup timeout to 1min. Date: Tue, 7 Jul 2015 16:09:13 +0100 Message-ID: <1436281753-19534-1-git-send-email-anthony.perard@citrix.com> References: <21915.58620.948343.728555@mariner.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <21915.58620.948343.728555@mariner.uk.xensource.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org Cc: Anthony PERARD , Wei Liu , Ian Jackson , Ian Campbell , Stefano Stabellini List-Id: xen-devel@lists.xenproject.org On a busy host, QEMU may take more than 10s to load and start. This is likely due to a bug in Linux where the I/O subsystem sometime produce high latency under load and result in QEMU taking a long time to load every single dynamic libraries. Signed-off-by: Anthony PERARD --- tools/libxl/libxl_internal.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h index d52589e..d6f87c1 100644 --- a/tools/libxl/libxl_internal.h +++ b/tools/libxl/libxl_internal.h @@ -85,7 +85,9 @@ #define LIBXL_INIT_TIMEOUT 10 #define LIBXL_DESTROY_TIMEOUT 10 #define LIBXL_HOTPLUG_TIMEOUT 10 -#define LIBXL_DEVICE_MODEL_START_TIMEOUT 10 +/* QEMU may be slow to load and start due to a bug in Linux where the I/O + * subsystem sometime produce high latency under load. */ +#define LIBXL_DEVICE_MODEL_START_TIMEOUT 60 #define LIBXL_STUBDOM_START_TIMEOUT 30 #define LIBXL_QEMU_BODGE_TIMEOUT 2 #define LIBXL_XENCONSOLE_LIMIT 1048576 -- Anthony PERARD