On Tuesday, August 16, 2011, Carlos R. Mafra wrote: > I started testing 3.0-rc2 yesterday and after a few successful suspend to ram > it did not suspend anymore and I got this: > > PM: Syncing filesystems ... done. > PM: Preparing system for mem sleep > Freezing user space processes ... > Freezing of tasks failed after 20.00 seconds (1 tasks refusing to freeze, wq_busy=0): > udisks-daemon D ffff8800a641e5d0 0 5848 5845 0x00800004 > ffff8800a6741928 0000000000000082 ffff880000000000 00000000000105c0 > ffff8800a641e200 00000000000105c0 ffff8800a6741fd8 00000000000105c0 > 00000000000105c0 ffff8800a6740000 ffff8800a6741fd8 00000000000105c0 > Call Trace: > [<ffffffff814cf355>] schedule_timeout+0x1c5/0x230 > [<ffffffff814ce8c9>] ? schedule+0x399/0x8a0 > [<ffffffff814ce3e0>] wait_for_common+0xc0/0x160 > [<ffffffff8103ec60>] ? try_to_wake_up+0x290/0x290 > [<ffffffff814d10ba>] ? _raw_spin_unlock_irq+0x2a/0x40 > [<ffffffff814ce528>] wait_for_completion+0x18/0x20 > [<ffffffff81059afb>] flush_work+0x2b/0x40 > [<ffffffff81058fd0>] ? do_work_for_cpu+0x30/0x30 > [<ffffffff8105a076>] flush_delayed_work+0x46/0x50 > [<ffffffff8121e6b6>] disk_clear_events+0x76/0x110 > [<ffffffff81106052>] check_disk_change+0x32/0x80 > [<ffffffff812ee649>] sd_open+0xb9/0x190 > [<ffffffff81106f81>] __blkdev_get+0x91/0x3d0 > [<ffffffff81107600>] ? blkdev_get+0x340/0x340 > [<ffffffff8110730e>] blkdev_get+0x4e/0x340 > [<ffffffff810e1b17>] ? do_lookup+0xb7/0x380 > [<ffffffff81107600>] ? blkdev_get+0x340/0x340 > [<ffffffff8110765d>] blkdev_open+0x5d/0x80 > [<ffffffff810d3d80>] __dentry_open+0x130/0x320 > [<ffffffff810d5021>] nameidata_to_filp+0x71/0x80 > [<ffffffff810e2ab1>] do_last+0xb1/0x800 > [<ffffffff810e4603>] path_openat+0xd3/0x3f0 > [<ffffffff81229077>] ? kobject_put+0x27/0x60 > [<ffffffff812ced62>] ? put_device+0x12/0x20 > [<ffffffff810e4984>] do_filp_open+0x44/0xa0 > [<ffffffff810f0a44>] ? alloc_fd+0xf4/0x150 > [<ffffffff810d512c>] do_sys_open+0xfc/0x1e0 > [<ffffffff810d3a86>] ? filp_close+0x56/0x80 > [<ffffffff810d522b>] sys_open+0x1b/0x20 > [<ffffffff814d1c3b>] system_call_fastpath+0x16/0x1b > > Restarting tasks ... done. > video LNXVIDEO:01: Restoring backlight state > acpid: 1 client rule loaded > EXT4-fs (sda2): re-mounted. Opts: discard,commit=600 > INFO: task udisks-daemon:5848 blocked for more than 120 seconds. > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > udisks-daemon D ffff8800a641e5d0 0 5848 5845 0x00000004 > ffff8800a6741928 0000000000000082 ffff880000000000 00000000000105c0 > ffff8800a641e200 00000000000105c0 ffff8800a6741fd8 00000000000105c0 > 00000000000105c0 ffff8800a6740000 ffff8800a6741fd8 00000000000105c0 > Call Trace: > [<ffffffff814cf355>] schedule_timeout+0x1c5/0x230 > [<ffffffff814ce8c9>] ? schedule+0x399/0x8a0 > [<ffffffff814ce3e0>] wait_for_common+0xc0/0x160 > [<ffffffff8103ec60>] ? try_to_wake_up+0x290/0x290 > [<ffffffff814d10ba>] ? _raw_spin_unlock_irq+0x2a/0x40 > [<ffffffff814ce528>] wait_for_completion+0x18/0x20 > [<ffffffff81059afb>] flush_work+0x2b/0x40 > [<ffffffff81058fd0>] ? do_work_for_cpu+0x30/0x30 > [<ffffffff8105a076>] flush_delayed_work+0x46/0x50 > [<ffffffff8121e6b6>] disk_clear_events+0x76/0x110 > [<ffffffff81106052>] check_disk_change+0x32/0x80 > [<ffffffff812ee649>] sd_open+0xb9/0x190 > [<ffffffff81106f81>] __blkdev_get+0x91/0x3d0 > [<ffffffff81107600>] ? blkdev_get+0x340/0x340 > [<ffffffff8110730e>] blkdev_get+0x4e/0x340 > [<ffffffff810e1b17>] ? do_lookup+0xb7/0x380 > [<ffffffff81107600>] ? blkdev_get+0x340/0x340 > [<ffffffff8110765d>] blkdev_open+0x5d/0x80 > [<ffffffff810d3d80>] __dentry_open+0x130/0x320 > [<ffffffff810d5021>] nameidata_to_filp+0x71/0x80 > [<ffffffff810e2ab1>] do_last+0xb1/0x800 > [<ffffffff810e4603>] path_openat+0xd3/0x3f0 > [<ffffffff81229077>] ? kobject_put+0x27/0x60 > [<ffffffff812ced62>] ? put_device+0x12/0x20 > [<ffffffff810e4984>] do_filp_open+0x44/0xa0 > [<ffffffff810f0a44>] ? alloc_fd+0xf4/0x150 > [<ffffffff810d512c>] do_sys_open+0xfc/0x1e0 > [<ffffffff810d3a86>] ? filp_close+0x56/0x80 > [<ffffffff810d522b>] sys_open+0x1b/0x20 > [<ffffffff814d1c3b>] system_call_fastpath+0x16/0x1b > > > and there are some more of these traces in the logs, but they all look the > same. It looks like udisks-daemon is waiting for a completion that's never completed. Do you use any removable storage devices? Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
