From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932624Ab3BSL5K (ORCPT ); Tue, 19 Feb 2013 06:57:10 -0500 Received: from smtp1.it.da.ut.ee ([193.40.5.66]:60601 "EHLO smtp2.it.da.ut.ee" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932202Ab3BSL45 (ORCPT ); Tue, 19 Feb 2013 06:56:57 -0500 Date: Tue, 19 Feb 2013 13:56:53 +0200 (EET) From: Meelis Roos To: linux-mm@vger.kernel.org cc: Linux Kernel list , sparclinux@vgker.kernel.org Subject: THP bug and crash on sparc64 3.8 Message-ID: User-Agent: Alpine 1.00 (SOC 882 2007-12-20) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I am receiving this with 3.8.0 on Sun E420R (4G RAM, 4 CPUs). System hangs after logging this to syslog. It was busy running ap at the moment of crash. CONFIG_TRANSPARENT_HUGEPAGE=y CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y # CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set BUG: sleeping function called from invalid context at mm/slub.c:925 in_atomic(): 1, irqs_disabled(): 0, pid: 327, name: khugepaged 2 locks held by khugepaged/327: #0: (&mm->mmap_sem){++++++}, at: [<0000000000516964>] khugepaged+0x624/0xf80 #1: (&(&mm->page_table_lock)->rlock){+.+.+.}, at: [<0000000000517078>] khugepaged+0xd38/0xf Call Trace: [0000000000488d9c] __might_sleep+0x13c/0x240 [000000000051204c] kmem_cache_alloc+0xcc/0x120 [000000000044bfc0] tsb_grow+0x80/0x480 [000000000044e814] hugetlb_setup+0x14/0xc0 [000000000044bcb0] set_pmd_at+0x110/0x120 [00000000005170b8] khugepaged+0xd78/0xf80 [000000000047e508] kthread+0x88/0xa0 [00000000004060a4] ret_from_syscall+0x1c/0x2c [0000000000000000] (null) -- Meelis Roos (mroos@linux.ee)