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From: Tomasz Chmielewski <tch@virtall.com>
To: Chris Mason <clm@fb.com>
Cc: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Input/output error, nothing appended in dmesg
Date: Sat, 06 Aug 2016 00:55:43 +0900	[thread overview]
Message-ID: <6a5c8e813a91f4edbf7353e55e87bd4a@admin.virtall.com> (raw)
In-Reply-To: <e03fc4983421a31251c6f6274dd2c597@admin.virtall.com>

On 2016-08-06 00:45, Tomasz Chmielewski wrote:

> And, miracle cure O_o
> 
> # file ./2016-08-02/serverX/syslog.log
> ERROR: cannot read `./2016-08-02/serverX/syslog.log' (Input/output 
> error)
> 
> # echo 3 > /proc/sys/vm/drop_caches
> 
> # file 2016-08-02/serverX/syslog.log
> 2016-08-02/serverX/syslog.log: ASCII text, with very long lines
> 
> # cat 2016-08-02/serverX/syslog.log
> (...)

A few mins after the previous "echo 3 > /proc/sys/vm/drop_caches" (this 
file is around 1.5 MB and wasn't touched since 2016-06-21):

# file ./2016-06-21/serverY/nginx-dashboard-error.log
./2016-06-21/serverY/nginx-dashboard-error.log: ERROR: cannot read 
`./2016-06-21/serverY/nginx-dashboard-error.log' (Input/output error)

# echo 3 > /proc/sys/vm/drop_caches

# file ./2016-06-21/serverY/nginx-dashboard-error.log
./2016-06-21/serverY/nginx-dashboard-error.log: ASCII text, with very 
long lines

# cat ./2016-06-21/serverY/nginx-dashboard-error.log
(...works OK, no corruption...)


Tomasz Chmielewski
https://lxadm.com

  parent reply	other threads:[~2016-08-05 15:55 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-05 11:42 Input/output error, nothing appended in dmesg Tomasz Chmielewski
2016-08-05 14:26 ` Chris Mason
2016-08-05 14:44   ` Tomasz Chmielewski
2016-08-05 15:15     ` Chris Mason
2016-08-05 15:38       ` Tomasz Chmielewski
2016-08-05 15:40         ` Chris Mason
2016-08-05 15:50           ` Tomasz Chmielewski
2016-08-05 15:45         ` Tomasz Chmielewski
2016-08-05 15:51           ` Chris Mason
2016-08-05 15:55           ` Tomasz Chmielewski [this message]
2016-08-05 17:14           ` Diego Calleja

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