Messages in this thread Patch in this message | | | From | Mike Frysinger <> | Subject | [PATCH 18/21] Blackfin: work around anomaly 05000189 | Date | Thu, 16 Jul 2009 20:05:43 -0400 |
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From: Robin Getz <robin.getz@analog.com>
Similar to anomaly 05000281 but not as bad, we cannot return to the instruction causing a fault otherwise we'll trigger a second false exception. The system can still recover, but it isn't correct.
Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> --- arch/blackfin/kernel/traps.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 9efac0f..bf2b2d1 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -621,7 +621,8 @@ asmlinkage void trap_c(struct pt_regs *fp) } if ((ANOMALY_05000461 && trapnr == VEC_HWERR && !access_ok(VERIFY_READ, fp->pc, 8)) || - (ANOMALY_05000281 && trapnr == VEC_HWERR)) + (ANOMALY_05000281 && trapnr == VEC_HWERR) || + (ANOMALY_05000189 && (trapnr == VEC_CPLB_I_VL || trapnr == VEC_CPLB_VL))) fp->pc = SAFE_USER_INSTRUCTION; traps_done: -- 1.6.3.3
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