From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id 2D0AC6B002D for ; Sun, 13 Nov 2011 09:43:02 -0500 (EST) Received: by wwf10 with SMTP id 10so3884778wwf.26 for ; Sun, 13 Nov 2011 06:42:59 -0800 (PST) Message-ID: <1321195355.2020.10.camel@localhost.localdomain> Subject: khugepaged cannot be freezed on 3.2-rc1 From: Maciej Marcin Piechotka Date: Sun, 13 Nov 2011 14:42:35 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org I am sorry if I've sent to wrong address. It seems that bug reporting resources - bugzilla & "Reporting bugs for the Linux kernel" page - are (still?) down. I followed the latter from web archive). When I try to suspend the computer the khugepaged refuses to be suspended: [10531.788922] PM: Syncing filesystems ... done. [10532.617226] Freezing user space processes ... (elapsed 0.01 seconds) done. [10532.629073] Freezing remaining freezable tasks ... [10552.638137] Freezing of tasks failed after 20.00 seconds (1 tasks refusing to freeze, wq_busy=0): [10552.638155] khugepaged R running task 0 21 2 0x00800000 [10552.638159] ffffea000072c740 000000000000ce01 ffffffff81093f56 ffffffff8166f680 [10552.638163] ffffffff8102bbd0 0000000000000001 ffffffff8102bc65 ffffea000072c140 [10552.638166] ffffea000072c1c0 ffffea000072c180 ffffffff8108cbc1 ffffea000032b700 [10552.638170] Call Trace: [10552.638177] [] ? vma_prio_tree_next+0x3c/0xd5 [10552.638181] [] ? try_to_unmap_file+0x4a7/0x4bd [10552.638184] [] ? ____pagevec_lru_add_fn+0x58/0x9a [10552.638188] [] ? compaction_alloc+0x132/0x24f [10552.638191] [] ? migrate_pages+0xa6/0x335 [10552.638194] [] ? pfn_valid.part.3+0x32/0x32 [10552.638197] [] ? compact_zone+0x3f4/0x5c3 [10552.638200] [] ? try_to_compact_pages+0x121/0x17e [10552.638203] [] ? __alloc_pages_direct_compact +0xaa/0x197 [10552.638206] [] ? __alloc_pages_nodemask +0x666/0x6c7 [10552.638210] [] ? get_parent_ip+0x9/0x1b [10552.638214] [] ? _raw_spin_lock_irqsave+0x13/0x34 [10552.638217] [] ? khugepaged_alloc_hugepage +0x4c/0xdb [10552.638220] [] ? add_wait_queue+0x3c/0x3c [10552.638222] [] ? khugepaged+0x7c/0xe04 [10552.638225] [] ? add_wait_queue+0x3c/0x3c [10552.638228] [] ? add_mm_counter.constprop.50 +0x9/0x9 [10552.638230] [] ? kthread+0x76/0x7e [10552.638233] [] ? kernel_thread_helper+0x4/0x10 [10552.638236] [] ? kthread_worker_fn+0x139/0x139 [10552.638238] [] ? gs_change+0xb/0xb [10552.638347] [10552.638348] Restarting tasks ... done. Regards -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org