From a8c3cb4955d1a051732ead9ecf8bcffc8e7c039d Mon Sep 17 00:00:00 2001 From: Hendrik Brueckner Date: Fri, 11 Sep 2009 10:28:42 +0200 Subject: [S390] move (io|sysc)_restore_trace_psw into .data section The sysc_restore_trace_psw and io_restore_trace_psw storage locations are created in the .text section. When creating and IPLing from a named saved system (NSS), writing to these locations causes a protection exception (because the .text section is mapped as shared read-only in the NSS). To permit write access, move the storage locations into the .data section. The problem occurs only when CONFIG_TRACE_IRQFLAGS is set. The git commmit that has introduced these variables is: 411788ea7fca01ee803af8225ac35807b4d02050 Signed-off-by: Hendrik Brueckner Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/entry64.S | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/s390/kernel/entry64.S') diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index f6618e9e15e..009ca6175db 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -284,10 +284,12 @@ sysc_leave: sysc_done: #ifdef CONFIG_TRACE_IRQFLAGS + .section .data,"aw",@progbits .align 8 .globl sysc_restore_trace_psw sysc_restore_trace_psw: .quad 0, sysc_restore_trace + .previous #endif # @@ -595,10 +597,12 @@ io_leave: io_done: #ifdef CONFIG_TRACE_IRQFLAGS + .section .data,"aw",@progbits .align 8 .globl io_restore_trace_psw io_restore_trace_psw: .quad 0, io_restore_trace + .previous #endif # -- cgit v1.2.3-70-g09d2