From: Kumar Gala Date: Wed, 7 Feb 2007 07:13:32 +0000 (-0600) Subject: [POWERPC] Enable interrupts if we are doing fp math emulation X-Git-Tag: v2.6.21-rc1~92^2~23^2~11^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=04903a30a327513b97c1271fc6bc4dad6502d1b8;p=pandora-kernel.git [POWERPC] Enable interrupts if we are doing fp math emulation Anytime we are emulating an instruction we are going to be doing some form of get_user() to get the instruction image to decode. Since get_user() might sleep we need to ensure we have interrupts enabled or we might see something like: Debug: sleeping function called from invalid context at arch/powerpc/kernel/traps.c:697 in_atomic():0, irqs_disabled():1 Call Trace: [D6023EB0] [C0007F84] show_stack+0x58/0x174 (unreliable) [D6023EE0] [C0022C34] __might_sleep+0xbc/0xd0 [D6023EF0] [C000D158] program_check_exception+0x1d8/0x4fc [D6023F40] [C000E744] ret_from_except_full+0x0/0x4c --- Exception: 700 at 0x102a7100 LR = 0xdb9ef04 However, we want to ensure that interrupts are disabled when handling a trap exception that might be used for a kernel breakpoint. This is why ProgramCheck is marked as EXC_XFER_STD instead of EXC_XFER_EE. Signed-off-by: Kumar Gala --- Reading git-diff-tree failed