From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: "Carlos R. Mafra" <crmafra2@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux PM mailing list <linux-pm@lists.linux-foundation.org>
Subject: Re: 3.0-rc2 failed s2ram: Freezing of tasks failed after 20.00 seconds
Date: Tue, 16 Aug 2011 20:13:55 +0200 [thread overview]
Message-ID: <201108162013.55341.rjw@sisk.pl> (raw)
In-Reply-To: <20110816094245.GA2042@Pilar.site>
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
next prev parent reply other threads:[~2011-08-16 18:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-16 9:42 3.0-rc2 failed s2ram: Freezing of tasks failed after 20.00 seconds Carlos R. Mafra
2011-08-16 18:13 ` Rafael J. Wysocki [this message]
[not found] ` <20110816211358.GA2251@Pilar.site>
2011-08-16 21:20 ` Rafael J. Wysocki
2011-08-16 22:45 ` Carlos R. Mafra
2011-08-17 9:14 ` Rafael J. Wysocki
2011-08-17 13:47 ` Carlos R. Mafra
2011-08-21 19:01 ` Maciej Rutecki
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