Hi, On Sat, 28 Sep 2013 02:10:12 +0300 Aaro Koskinen <aaro.koskinen@xxxxxx> wrote: > Hi, > > 3.12-rc2 breaks the boot (BUG: scheduling while atomic, see logs below) > on Lemote Mini-PC (MIPS). According to git bisect, this is caused by: > > ff522058bd717506b2fa066fa564657f2b86477e is the first bad commit > commit ff522058bd717506b2fa066fa564657f2b86477e > Author: Ralf Baechle <ralf@xxxxxxxxxxxxxx> > Date: Tue Sep 17 12:44:31 2013 +0200 > > MIPS: Fix accessing to per-cpu data when flushing the cache > > Reverting the commit from v3.12-rc2 makes the board boot fine. Please try this patch on top of rc2. MIPS: Fix forgotten preempt_enable() when CPU has inclusive pcaches Signed-off-by: Yoichi Yuasa <yuasa@xxxxxxxxxxxxxx> diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 627883b..2492e60 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -609,6 +609,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) r4k_blast_scache(); else blast_scache_range(addr, addr + size); + preempt_enable(); __sync(); return; }
