From e8200baa2fd2e9c4bc7abd824a9e675d914e54a0 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Thu, 7 May 2015 14:34:59 -0400 Subject: [PATCH] tile: fix "odd fault" warning for stack backtraces We were setting ex1 in new kernel threads to KERNEL_PL. But since we just do a simple context-switch, not an iret, any value set here is ignored anyway, and its presence causes stack backtraces to end with a warning about an "odd fault". Signed-off-by: Chris Metcalf --- arch/tile/kernel/process.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 0dddcf7e5bfa..96ea75e04582 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -133,7 +133,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, (CALLEE_SAVED_REGS_COUNT - 2) * sizeof(unsigned long)); callee_regs[0] = sp; /* r30 = function */ callee_regs[1] = arg; /* r31 = arg */ - childregs->ex1 = PL_ICS_EX1(KERNEL_PL, 0); p->thread.pc = (unsigned long) ret_from_kernel_thread; return 0; } -- 2.20.1