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Diffstat (limited to 'nptl/sysdeps/x86_64/pthreaddef.h')
-rw-r--r--nptl/sysdeps/x86_64/pthreaddef.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/nptl/sysdeps/x86_64/pthreaddef.h b/nptl/sysdeps/x86_64/pthreaddef.h
index be63a8c74a..8ec135c048 100644
--- a/nptl/sysdeps/x86_64/pthreaddef.h
+++ b/nptl/sysdeps/x86_64/pthreaddef.h
@@ -27,8 +27,9 @@
 /* Minimal stack size after allocating thread descriptor and guard size.  */
 #define MINIMAL_REST_STACK	2048
 
-/* Alignment requirement for TCB.  */
-#define TCB_ALIGNMENT		16
+/* Alignment requirement for TCB.  Need to store post-AVX vector registers
+   in the TCB and we want the storage to be aligned at 32-byte.  */
+#define TCB_ALIGNMENT		32
 
 
 /* Location of current stack frame.  The frame pointer is not usable.  */