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-rw-r--r--arch/x86/entry/entry_64.S2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 73ddf24fed3e..89494965e9f9 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -291,6 +291,7 @@ ENTRY(__switch_to_asm)
pushq %r13
pushq %r14
pushq %r15
+ pushfq
/* switch stack */
movq %rsp, TASK_threadsp(%rdi)
@@ -313,6 +314,7 @@ ENTRY(__switch_to_asm)
#endif
/* restore callee-saved registers */
+ popfq
popq %r15
popq %r14
popq %r13