# HG changeset patch
# User Keir Fraser <keir.fraser@citrix.com>
# Date 1273479772 -3600
# Node ID 93c5beba9d04d3e8d2522241bad14107433c3121
# Parent  3b6e33ebb57b670a48ad138aecb47cbd32a4e986
xentrace: fix bug in t_info size

t_info size should be in bytes, not pages.  This fixes a bug
that crashes the hypervisor if the total number of all pages
is more than 1024 but less than 2048.

Signed-off-by: George Dunlap <george.dunlap@citrix.com>

Index: xen-4.0.0-testing/xen/common/trace.c
===================================================================
--- xen-4.0.0-testing.orig/xen/common/trace.c
+++ xen-4.0.0-testing/xen/common/trace.c
@@ -367,7 +367,7 @@ int tb_control(xen_sysctl_tbuf_op_t *tbc
     case XEN_SYSCTL_TBUFOP_get_info:
         tbc->evt_mask   = tb_event_mask;
         tbc->buffer_mfn = t_info ? virt_to_mfn(t_info) : 0;
-        tbc->size = T_INFO_PAGES;
+        tbc->size = T_INFO_PAGES * PAGE_SIZE;
         break;
     case XEN_SYSCTL_TBUFOP_set_cpu_mask:
         xenctl_cpumap_to_cpumask(&tb_cpu_mask, &tbc->cpu_mask);