My tiger machine hangs since 2.6.23 with commit above. I always saw oops
in ia64_sal_physical_id_info(). In 2.6.22, if ia64_pal_logical_to_phys
returns UNIMPLENTED, ia64_sal_physical_id_info() isn't called. Below
patch fixes the issue.
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 32ee597..6e0290b 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -878,13 +878,10 @@ identify_siblings(struct cpuinfo_ia64 *c)
printk(KERN_ERR
"ia64_pal_logical_to_phys failed with %ld\n",
status);
- return;
}
-
- info.overview_ppid = 0;
- info.overview_cpp = 1;
- info.overview_tpc = 1;
+ return;
}
+
if ((status = ia64_sal_physical_id_info(&pltid)) != PAL_STATUS_SUCCESS)
{
printk(KERN_ERR "ia64_sal_pltid failed with %ld\n", status);
return;
@@ -892,9 +889,6 @@ identify_siblings(struct cpuinfo_ia64 *c)
c->socket_id = (pltid << 8) | info.overview_ppid;
- if (info.overview_cpp == 1 && info.overview_tpc == 1)
- return;
-
c->cores_per_socket = info.overview_cpp;
c->threads_per_core = info.overview_tpc;
c->num_log = info.overview_num_log;
-
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