lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:	Wed, 4 Jun 2008 18:56:24 +0200
From:	Jan Kara <jack@...e.cz>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: ftest01:16876 blocked for more than 120 seconds

  Hi,

> This happened during LTP run together with mass-compiling kernels.
> Kernel is 2.6.26-rc4-1beee8dc8cf58e3f605bd7b34d7a39939be7d8d2
> fs is ext3 mounted with noatime.
  Thanks for report.

> INFO: task ftest01:16876 blocked for more than 120 seconds.
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> ftest01       D 0000000000000000     0 16876  16863
>  ffff810066fd3d68 0000000000000046 ffff810066fd3d08 ffffffff80254aae
>  ffff81005e7ab3c0 ffff810075530000 ffff81005e7ab600 0000000000000002
>  ffff810066fd3d28 ffffffff80254c55 ffff81000c043440 0000000000000282
> Call Trace:
>  [<ffffffff80254aae>] ? mark_held_locks+0x3e/0x80
>  [<ffffffff80254c55>] ? trace_hardirqs_on+0xd5/0x160
>  [<ffffffff80460722>] ? _spin_unlock_irqrestore+0x42/0x80
>  [<ffffffff802a54a9>] inode_wait+0x9/0x10
>  [<ffffffff8045dfd5>] __wait_on_bit+0x55/0x80
>  [<ffffffff802a54a0>] ? inode_wait+0x0/0x10
>  [<ffffffff802b164a>] __writeback_single_inode+0x21a/0x320
>  [<ffffffff80247860>] ? wake_bit_function+0x0/0x30
>  [<ffffffff802b1bff>] sync_sb_inodes+0x1df/0x2d0
>  [<ffffffff802b1d8f>] sync_inodes_sb+0x9f/0xc0
>  [<ffffffff802b1e3a>] __sync_inodes+0x8a/0xe0
>  [<ffffffff802b1ebe>] sync_inodes+0x2e/0x40
>  [<ffffffff802b4f54>] do_sync+0x34/0x70
>  [<ffffffff802b4f9e>] sys_sync+0xe/0x20
>  [<ffffffff8020b68b>] system_call_after_swapgs+0x7b/0x80
> 
> 1 lock held by ftest01/16876:
>  #0:  (&type->s_umount_key#3){----}, at: [<ffffffff802b1e28>] __sync_inodes+0x78/0xe0
  We are waiting for __I_SYNC - i.e., some other process is syncing
the inode and it took it longer than 120 sec to write this inode which
is well possible on heavily loaded system. I'm not sure we can do much here...

									Honza
-- 
Jan Kara <jack@...e.cz>
SuSE CR Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists