From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx105.postini.com [74.125.245.105]) by kanga.kvack.org (Postfix) with SMTP id 24C396B005D for ; Wed, 24 Oct 2012 22:37:42 -0400 (EDT) Date: Wed, 24 Oct 2012 22:37:38 -0400 From: Dave Jones Subject: shmem_getpage_gfp VM_BUG_ON triggered. [3.7rc2] Message-ID: <20121025023738.GA27001@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: Linux Kernel Machine under significant load (4gb memory used, swap usage fluctuating) triggered this... WARNING: at mm/shmem.c:1151 shmem_getpage_gfp+0xa5c/0xa70() Pid: 29795, comm: trinity-child4 Not tainted 3.7.0-rc2+ #49 Call Trace: [] warn_slowpath_common+0x7f/0xc0 [] warn_slowpath_null+0x1a/0x20 [] shmem_getpage_gfp+0xa5c/0xa70 [] ? shmem_getpage_gfp+0x29e/0xa70 [] shmem_fault+0x4f/0xa0 [] __do_fault+0x71/0x5c0 [] ? __lock_acquire+0x306/0x1ba0 [] ? local_clock+0x89/0xa0 [] handle_pte_fault+0x97/0xae0 [] ? sub_preempt_count+0x79/0xd0 [] ? delay_tsc+0xae/0x120 [] ? __const_udelay+0x28/0x30 [] handle_mm_fault+0x289/0x350 [] __do_page_fault+0x18e/0x530 [] ? local_clock+0x89/0xa0 [] ? get_parent_ip+0x11/0x50 [] ? get_parent_ip+0x11/0x50 [] ? sub_preempt_count+0x79/0xd0 [] ? rcu_user_exit+0xc9/0xf0 [] do_page_fault+0x2b/0x50 [] page_fault+0x28/0x30 [] ? copy_user_enhanced_fast_string+0x9/0x20 [] ? sys_futimesat+0x41/0xe0 [] ? syscall_trace_enter+0x25/0x2c0 [] ? tracesys+0x7e/0xe6 [] tracesys+0xe1/0xe6 1148 error = shmem_add_to_page_cache(page, mapping, index, 1149 gfp, swp_to_radix_entry(swap)); 1150 /* We already confirmed swap, and make no allocation */ 1151 VM_BUG_ON(error); 1152 } total used free shared buffers cached Mem: 3885528 2854064 1031464 0 9624 19208 -/+ buffers/cache: 2825232 1060296 Swap: 6029308 30656 5998652 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org