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authorKeir Fraser <keir.fraser@citrix.com>2010-05-10 09:22:52 +0100
committerKeir Fraser <keir.fraser@citrix.com>2010-05-10 09:22:52 +0100
commit268d40f9b898c545fbb27a5116ac8add34dde9e8 (patch)
tree92fe6d9e7599738a4245e4071e4bfd926e17c576 /xen/common/trace.c
parentdd41a2dae2691026bc739bf1673f62f228b4049b (diff)
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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>
Diffstat (limited to 'xen/common/trace.c')
-rw-r--r--xen/common/trace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/common/trace.c b/xen/common/trace.c
index 110f3b8c7d..cc29c8b970 100644
--- a/xen/common/trace.c
+++ b/xen/common/trace.c
@@ -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);