Messages in this thread Patch in this message | | | Subject | [PATCH] linux-2.4.23-pre5_nrcpus-fix_A1 | From | john stultz <> | Date | 24 Sep 2003 15:06:47 -0700 |
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On Tue, 2003-09-23 at 17:59, john stultz wrote: > Marcelo, all, > This is a backported patch from 2.5 that fixes array overflows and > memory corruption when booting on boxes with more processors then > CONFIG_NR_CPUS. >
Marcelo, All, James Cleverdon pointed out that I had a printk formatting typo in the last revision of this patch ( "0x%d" - doh!).
Anyway, this revision corrects the error, changing 0x%d -> 0x%x.
thanks -john
diff -Nru a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c --- a/arch/i386/kernel/mpparse.c Wed Sep 24 15:02:51 2003 +++ b/arch/i386/kernel/mpparse.c Wed Sep 24 15:02:51 2003 @@ -229,6 +229,11 @@ boot_cpu_logical_apicid = logical_apicid; } + if (num_processors >= NR_CPUS){ + printk(KERN_WARNING "NR_CPUS limit of %i reached. Cannot " + "boot CPU(apicid 0x%x).\n", NR_CPUS, m->mpc_apicid); + return; + } num_processors++; if (m->mpc_apicid > MAX_APICS) {
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