From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <> Received: from asclepius.site5.com (asclepius.site5.com [70.47.36.37]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 2B502DDF45 for ; Sat, 13 Jan 2007 08:59:19 +1100 (EST) Received: from kevlar.boston.burdell.org ([66.92.67.27]) by asclepius.site5.com with esmtpa (Exim 4.63) id 1H5QBW-0007Tq-1W for linuxppc-dev@ozlabs.org; Fri, 12 Jan 2007 12:27:22 -0500 Date: Fri, 12 Jan 2007 12:24:11 -0500 From: Sonny Rao To: linuxppc-dev@ozlabs.org Subject: 2.6.19: kernel BUG in hugepd_page at arch/powerpc/mm/hugetlbpage.c:58! Message-ID: <20070112172411.GA1077@kevlar.boston.burdell.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi, I was running a 2.6.19 kernel w/ 64k pages and running some benchmarks with libhugetlbfs and got this BUG: kernel BUG in hugepd_page at arch/powerpc/mm/hugetlbpage.c:58! 6:mon> 6:mon> t [link register ] c000000000031024 .hash_huge_page+0x50/0x42c [c0000002d92c7c90] c0000002d92c7d50 (unreliable) [c0000002d92c7d50] c00000000002cf80 .hash_page+0x214/0x3bc [c0000002d92c7e30] c000000000004834 .do_hash_page+0x34/0x40 --- Exception: 301 (Data Access) at 000000001009b0cc SP (f33bc830) is in userspace from this BUG_ON() static inline pte_t *hugepd_page(hugepd_t hpd) { BUG_ON(!(hpd.pd & HUGEPD_OK)); return (pte_t *)(hpd.pd & ~HUGEPD_OK); } Has anyone seen this before? A cursory search for hugepd_page and this bug came up with nothing. Sonny