[Freeswitch-users] Kernel error

[Brian :]

Hi David,

Some IO issue on that instance?



On Friday, August 23, 2019, David Villasmil <david.villasmil.work at gmail.com>
wrote:
> Hello all,
> I got a kernel error today:
>
> kernel: [2145601.469472] INFO: task freeswitch:1589 blocked for more than
120 seconds.
>
> kernel: [2145601.473832] Not tainted 3.16.0-7-amd64 #1
>
> kernel: [2145601.476781] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this
>
> kernel: [2145601.481780] freeswitch D ffffffff810a19c6 0 1589 1 0x00000000
>
> kernel: [2145601.486345] ffff88008e301490 0000000000000086
0000000000014000 ffff8800ea02b
>
> kernel: [2145601.491304] 0000000000014000 ffff88008e301490
ffff8800efc348b0 ffff8800effda
>
> kernel: [2145601.496294] 0000000000000002 ffffffffa00f06f0
ffff8800ea02bb20 ffff8800e9c4c
>
> kernel: [2145601.501373] Call Trace:
>
> kernel: [2145601.503039] [<ffffffffa00f06f0>] ?
start_this_handle+0x5d0/0x5d0 [jbd2]
>
> kernel: [2145601.507213] [<ffffffff8153711b>] ? io_schedule+0xab/0x140
>
> kernel: [2145601.510700] [<ffffffffa00f06fa>] ?
sleep_on_shadow_bh+0xa/0x10 [jbd2]
>
> kernel: [2145601.514798] [<ffffffff815374ee>] ? __wait_on_bit+0x5e/0x90
>
> kernel: [2145601.518320] [<ffffffffa00f06f0>] ?
start_this_handle+0x5d0/0x5d0 [jbd2]
>
> kernel: [2145601.522560] [<ffffffff81537597>] ?
out_of_line_wait_on_bit+0x77/0x90
>
> kernel: [2145601.526611] [<ffffffff810afa70>] ?
autoremove_wake_function+0x30/0x30
>
> kernel: [2145601.530704] [<ffffffff811ea9cc>] ?
__find_get_block+0xbc/0x260
>
> kernel: [2145601.534503] [<ffffffffa00f1b75>] ?
do_get_write_access+0x275/0x4e0 [jbd2]
>
> kernel: [2145601.538490] [<ffffffff811eae56>] ? __getblk_gfp+0x26/0x60
>
> kernel: [2145601.541563] [<ffffffffa011552b>] ?
ext4_dirty_inode+0x3b/0x60 [ext4]
>
> kernel: [2145601.545135] [<ffffffffa00f1e02>] ?
jbd2_journal_get_write_access+0x22/0x40 [
>
> kernel: [2145601.549586] [<ffffffffa013d636>] ?
__ext4_journal_get_write_access+0x36/0x80
>
> kernel: [2145601.554118] [<ffffffffa0111f80>] ?
ext4_reserve_inode_write+0x60/0x80 [ext4]
>
> kernel: [2145601.558251] [<ffffffffa0111fdf>] ?
ext4_mark_inode_dirty+0x3f/0x1f0 [ext4]
>
> kernel: [2145601.562161] [<ffffffffa011552b>] ?
ext4_dirty_inode+0x3b/0x60 [ext4]
>
> kernel: [2145601.565619] [<ffffffff811e31fc>] ?
__mark_inode_dirty+0x16c/0x2c0
>
> kernel: [2145601.569045] [<ffffffff811d2fa9>] ? update_time+0x89/0xc0
>
> kernel: [2145601.572339] [<ffffffff811d31a3>] ? file_update_time+0x83/0xd0
>
> kernel: [2145601.575806] [<ffffffff8114a8b8>] ?
__generic_file_write_iter+0x1b8/0x3c0
>
> kernel: [2145601.579850] [<ffffffff81536903>] ? __schedule+0x233/0x740
>
> kernel: [2145601.583479] [<ffffffffa0108d20>] ?
ext4_file_write_iter+0x100/0x3e0 [ext4]
>
> kernel: [2145601.587722] [<ffffffff81536903>] ? __schedule+0x233/0x740
>
> kernel: [2145601.590891] [<ffffffff8153690f>] ? __schedule+0x23f/0x740
>
> kernel: [2145601.593958] [<ffffffff8153690f>] ? __schedule+0x23f/0x740
>
> kernel: [2145601.597353] [<ffffffff81536903>] ? __schedule+0x233/0x740
>
> kernel: [2145601.599562] [<ffffffff8153690f>] ? __schedule+0x23f/0x740
>
> kernel: [2145601.601874] [<ffffffff81536903>] ? __schedule+0x233/0x740
>
> kernel: [2145601.605203] [<ffffffff8153690f>] ? __schedule+0x23f/0x740
>
> kernel: [2145601.608712] [<ffffffff81536903>] ? __schedule+0x233/0x740
>
> kernel: [2145601.612189] [<ffffffff812ca038>] ? timerqueue_add+0x58/0xa0
>
> kernel: [2145601.615786] [<ffffffff810915b1>] ? enqueue_hrtimer+0x21/0xa0
>
> kernel: [2145601.619516] [<ffffffff811b751a>] ? new_sync_write+0x7a/0xb0
>
> kernel: [2145601.623227] [<ffffffff811b7cb5>] ? vfs_write+0xb5/0x1f0
>
> kernel: [2145601.626683] [<ffffffff811b7bac>] ? vfs_read+0x11c/0x170
>
> kernel: [2145601.630119] [<ffffffff811b8802>] ? SyS_write+0x42/0xa0
>
> kernel: [2145601.633491] [<ffffffff8153ae1c>] ?
system_call_fast_compare_end+0x1c/0x21
>
> This is on an AWS ec2 t2 large instance...
> Regards,
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
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