From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerd Knorr Subject: "xm save" trouble -- deadlock? Date: Tue, 01 Nov 2005 17:43:56 +0100 Message-ID: <43679B4C.3030804@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel List-Id: xen-devel@lists.xenproject.org Hi, "xm save" doesn't work for me, the command just blocks forever. In the process list it looks like this: 6567 ? Ssl 0:00 python /usr/sbin/xend restart 7978 ? SL 0:00 \_ /usr/lib/xen/bin/xc_save 14 17 10 0 0 0 xc_save is blocked, in a write call to stderr: master-xen root /vm/ttylinux# strace -p7978 Process 7978 attached - interrupt to quit write(2, "FNI 28 : [10000004,815] pte=2b92"..., 80 Process 7978 detached stderr is a pipe to xend: master-xen root /vm/ttylinux# ll /proc/7978/fd/2 l-wx------ 1 root root 64 Nov 1 17:25 /proc/7978/fd/2 -> pipe:[40419] master-xen root /vm/ttylinux# ll /proc/*/fd/* | grep 40419 lr-x------ 1 root root 64 Nov 1 17:25 /proc/6567/fd/22 -> pipe:[40419] l-wx------ 1 root root 64 Nov 1 17:25 /proc/7978/fd/2 -> pipe:[40419] xend in turn doesn't read from the pipe but is waiting for some lock: master-xen root /vm/ttylinux# strace -p6567 Process 6567 attached - interrupt to quit futex(0x8087370, FUTEX_WAIT, 0, NULL Process 6567 detached Ideas anyone what is going on here? Gerd