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sh: Clear UBC when not in use.

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This takes care of tearing down the UBC so it's not inadvertently
left configured at the next context switch time. Failure to do
this results in spurious SIGTRAPs in certain debug sequences.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Stuart Menefy
2007-02-23 13:22:17 +09:00
committed by Paul Mundt
parent 20b0f65d35
commit 9432f96803
3 changed files with 36 additions and 13 deletions
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2
arch/sh/kernel/entry-common.S
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@ -224,7 +224,7 @@ work_resched:
syscall_exit_work:
! r0: current_thread_info->flags
! r8: current_thread_info
tst #_TIF_SYSCALL_TRACE, r0
tst #_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP, r0
bt/s work_pending
tst #_TIF_NEED_RESCHED, r0
#ifdef CONFIG_TRACE_IRQFLAGS