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kgdb: could not write to the last of valid memory with kgdb

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On the ARM architecture, kgdb will crash the kernel if the last byte
of valid memory is written due to a flush_icache_range flushing
beyond the memory boundary.

Signed-off-by: Atsuo Igarashi <atsuo_igarashi@tripeaks.co.jp>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
This commit is contained in:
Atsuo Igarashi 2008-09-26 10:36:41 -05:00 committed by Jason Wessel
parent 6ef190cc92
commit 18d6522b86
1 changed files with 1 additions and 1 deletions
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2
kernel/kgdb.c
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@ -488,7 +488,7 @@ static int write_mem_msg(int binary)
if (err)
return err;
if (CACHE_FLUSH_IS_SAFE)
flush_icache_range(addr, addr + length + 1);
flush_icache_range(addr, addr + length);
return 0;
}