ux-bl...@vger.kernel.org;
linux-fsde...@vger.kernel.org; linux-kernel@vger.kernel.org; Wysoczanski,
Michal ; Baldyga, Robert
; Roman, Agnieszka
Subject: Re: [BUG] Possible silent data corruption in filesystems/page cache
On Mon, Jun 06, 2016 at 07:29:42AM +, Barczak, Mariusz wrote:
> Hi
On Mon, Jun 06, 2016 at 07:29:42AM +, Barczak, Mariusz wrote:
> Hi, Let me elaborate problem in detail.
>
> For buffered IO data are copied into memory pages. For this case,
> the write IO is not submitted (generally). In the background opportunistic
> cleaning of dirty pages takes place and
Cc: Andrew Morton ; Jens Axboe ;
Alexander Viro ; linux...@kvack.org;
linux-bl...@vger.kernel.org; linux-fsde...@vger.kernel.org;
linux-kernel@vger.kernel.org; Wysoczanski, Michal
; Baldyga, Robert ;
Roman, Agnieszka
Subject: Re: [BUG] Possible silent data corruption in filesystems/page
On Jun 1, 2016, at 3:51 AM, Barczak, Mariusz wrote:
>
> We run data validation test for buffered workload on filesystems:
> ext3, ext4, and XFS.
> In context of flushing page cache block device driver returned IO error.
> After dropping page cache our validation tool reported data corruption.
Hi
Hi
We run data validation test for buffered workload on filesystems:
ext3, ext4, and XFS.
In context of flushing page cache block device driver returned IO error.
After dropping page cache our validation tool reported data corruption.
We provided a simple patch in order to inject IO error in devi
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