If "max_purges" from PAL is 0, it actually means 1. However it was not handled later when a hot-added cpu pass the max_purges from PAL. This makes systems easy to go BUG_ON(). Signed-off-by: Hidetoshi Seto <seto.hidetoshi@xxxxxxxxxxxxxx> --- arch/ia64/mm/tlb.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c index d52ec4e..8caf424 100644 --- a/arch/ia64/mm/tlb.c +++ b/arch/ia64/mm/tlb.c @@ -168,7 +168,10 @@ setup_ptcg_sem(int max_purges, int nptcg_from) static int firstcpu = 1; if (toolatetochangeptcgsem) { - BUG_ON(max_purges < nptcg); + if (nptcg_from == NPTCG_FROM_PAL && max_purges == 0) + BUG_ON(1 < nptcg); + else + BUG_ON(max_purges < nptcg); return; } -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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