[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-changelog] [xen-unstable] xentrace: fix bug in t_info size



# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# 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@xxxxxxxxxx>
---
 xen/common/trace.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r 3b6e33ebb57b -r 93c5beba9d04 xen/common/trace.c
--- a/xen/common/trace.c        Mon May 10 09:21:58 2010 +0100
+++ b/xen/common/trace.c        Mon May 10 09:22:52 2010 +0100
@@ -340,7 +340,7 @@ 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);

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.