The patch doesn't help. The kernel hangs in the same fashion.
>-----Original Message-----
>From: linux-mips-bounce@linux-mips.org
>[mailto:linux-mips-bounce@linux-mips.org] On Behalf Of Atsushi Nemoto
>Sent: Thursday, August 17, 2006 6:51 PM
>To: Mark E Mason
>Cc: linux-mips@linux-mips.org; ralf@linux-mips.org; ths@networkno.de
>Subject: Re: [MIPS] SB1: Build fix: delete initialization of
>flush_icache_page pointer.
>
>On Thu, 17 Aug 2006 14:20:07 -0700, "Mark E Mason"
><mark.e.mason@broadcom.com> wrote:
>> The sb1_flash_icache_page change below breaks causes 1480 kernels to
>> hang after freeing memory:
>
>Does this (untested) patch work for you?
>
>diff --git a/arch/mips/mm/c-sb1.c b/arch/mips/mm/c-sb1.c index
>4bd9ad8..0f5691a 100644
>--- a/arch/mips/mm/c-sb1.c
>+++ b/arch/mips/mm/c-sb1.c
>@@ -253,6 +253,17 @@ void sb1___flush_cache_all(void)
> __attribute__((alias("local_sb1___flush_cache_all")));
> #endif
>
>+static inline void local_sb1_flush_data_cache_page(void * addr) {
>+ __sb1_writeback_inv_dcache_range((unsigned long)addr,
>+ (unsigned long)addr +
>PAGE_SIZE); }
>+
>+static void sb1_flush_data_cache_page(unsigned long addr) {
>+ on_each_cpu(local_sb1_flush_data_cache_page, (void *)
>addr, 1, 1); }
>+
> /*
> * When flushing a range in the icache, we have to first writeback
> * the dcache for the same range, so new ifetches will see
>any @@ -527,8 +538,8 @@ #endif
> flush_cache_page = sb1_flush_cache_page;
>
> flush_cache_sigtramp = sb1_flush_cache_sigtramp;
>- local_flush_data_cache_page = (void *) sb1_nop;
>- flush_data_cache_page = (void *) sb1_nop;
>+ local_flush_data_cache_page = local_sb1_flush_data_cache_page;
>+ flush_data_cache_page = sb1_flush_data_cache_page;
>
> /* Full flush */
> __flush_cache_all = sb1___flush_cache_all;
>
>
>
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