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Message-Id: <201108162320.28297.rjw@sisk.pl> Date: Tue, 16 Aug 2011 23:20:28 +0200 From: "Rafael J. Wysocki" <rjw@...k.pl> To: "Carlos R. Mafra" <crmafra@...il.com> Cc: LKML <linux-kernel@...r.kernel.org>, Linux PM mailing list <linux-pm@...ts.linux-foundation.org> Subject: Re: 3.0-rc2 failed s2ram: Freezing of tasks failed after 20.00 seconds On Tuesday, August 16, 2011, Carlos R. Mafra wrote: > On Tue, 16 Aug 2011 at 20:13:55 +0200, Rafael J. Wysocki wrote: > > 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? > > Yes, external harddisks connected via USB. But none were mounted > when I closed the lid to suspend. Were they connected to the USB ports? > PS: I made a mistake in the Subject:, the kernel is 3.1-rc2 and > not 3.0-rc2. Did 3.0 work correctly? Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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