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xen-changelog
[Xen-changelog] [xen-4.0-testing] xentrace: fix bug in t_info size
# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1273481775 -3600
# Node ID 699178eba7eb96bd2dfee33ceaa9ec89998f18c2
# Parent 0349638790b4f2821e91d5d845ffca3a2567bde2
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-unstable changeset: 21333:93c5beba9d04
xen-unstable date: Mon May 10 09:22:52 2010 +0100
---
xen/common/trace.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -r 0349638790b4 -r 699178eba7eb xen/common/trace.c
--- a/xen/common/trace.c Mon May 10 09:55:54 2010 +0100
+++ b/xen/common/trace.c Mon May 10 09:56:15 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);
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