On 11/13/2011 08:12 PM, Maciej Marcin Piechotka wrote: > 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). > Adding linux-pm mailing list to CC. Andrea Arcangeli has written a patch to solve khugepaged freezing issue. https://lkml.org/lkml/2011/11/9/312 Can you check if that patch solves the issue for you too? Thanks, Srivatsa S. Bhat > 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] [<ffffffff81093f56>] ? vma_prio_tree_next+0x3c/0xd5 > [10552.638181] [<ffffffff810a2798>] ? try_to_unmap_file+0x4a7/0x4bd > [10552.638184] [<ffffffff8108cbc1>] ? ____pagevec_lru_add_fn+0x58/0x9a > [10552.638188] [<ffffffff810ad11d>] ? compaction_alloc+0x132/0x24f > [10552.638191] [<ffffffff810b26f8>] ? migrate_pages+0xa6/0x335 > [10552.638194] [<ffffffff810acfeb>] ? pfn_valid.part.3+0x32/0x32 > [10552.638197] [<ffffffff810ad6b2>] ? compact_zone+0x3f4/0x5c3 > [10552.638200] [<ffffffff810ad9a2>] ? try_to_compact_pages+0x121/0x17e > [10552.638203] [<ffffffff8108a2f1>] ? __alloc_pages_direct_compact > +0xaa/0x197 > [10552.638206] [<ffffffff8108aa44>] ? __alloc_pages_nodemask > +0x666/0x6c7 > [10552.638210] [<ffffffff8102bbd0>] ? get_parent_ip+0x9/0x1b > [10552.638214] [<ffffffff81348964>] ? _raw_spin_lock_irqsave+0x13/0x34 > [10552.638217] [<ffffffff810b2e12>] ? khugepaged_alloc_hugepage > +0x4c/0xdb > [10552.638220] [<ffffffff81047ab9>] ? add_wait_queue+0x3c/0x3c > [10552.638222] [<ffffffff810b33fd>] ? khugepaged+0x7c/0xe04 > [10552.638225] [<ffffffff81047ab9>] ? add_wait_queue+0x3c/0x3c > [10552.638228] [<ffffffff810b3381>] ? add_mm_counter.constprop.50 > +0x9/0x9 > [10552.638230] [<ffffffff810474ee>] ? kthread+0x76/0x7e > [10552.638233] [<ffffffff8134b274>] ? kernel_thread_helper+0x4/0x10 > [10552.638236] [<ffffffff81047478>] ? kthread_worker_fn+0x139/0x139 > [10552.638238] [<ffffffff8134b270>] ? 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@xxxxxxxxx. 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: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>