From 8f582bc637ca4d899c9bffc961a36e0b3e2777ee Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 7 Oct 2011 14:31:44 +0000 Subject: 2011-10-07 Daniel Hellstrom PR 1932/cpukit * cpu_asm.S: At some point the interrupt trap handler causes a window-overflow and the window overflow trap handler crashes when writing to 0. I found that this is because the WIM was bad, to the window overflow handler uses a uninitialized stack pointer in a window never used. * g3=CWP, not WIM * CWP is incremented by done_flushing no need doing that here also * I see no reason to create an additional stack frame (save) * Must turn off traps when updating WIM (maybe already done by caller?) --- cpukit/score/cpu/sparc/ChangeLog | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'cpukit/score/cpu/sparc/ChangeLog') diff --git a/cpukit/score/cpu/sparc/ChangeLog b/cpukit/score/cpu/sparc/ChangeLog index 10b7a98e52..eab5f805c1 100644 --- a/cpukit/score/cpu/sparc/ChangeLog +++ b/cpukit/score/cpu/sparc/ChangeLog @@ -1,3 +1,15 @@ +2011-10-07 Daniel Hellstrom + + PR 1932/cpukit + * cpu_asm.S: At some point the interrupt trap handler causes a + window-overflow and the window overflow trap handler crashes when + writing to 0. I found that this is because the WIM was bad, to the + window overflow handler uses a uninitialized stack pointer in a + window never used. + * g3=CWP, not WIM + * CWP is incremented by done_flushing no need doing that here also + * I see no reason to create an additional stack frame (save) + * Must turn off traps when updating WIM (maybe already done by caller?) 2011-09-27 Sebastian Huber PR 1914/cpukit -- cgit v1.2.3