Re: I/O and pdflush

From: Fernando Silveira
Date: Fri Aug 28 2009 - 17:49:08 EST

On Sun, Jul 12, 2009 at 05:04, Wu Fengguang<fengguang.wu@xxxxxxxxx> wrote:
> On Sat, Jul 11, 2009 at 02:27:25PM -0300, Fernando Silveira wrote:
>> I'm having a hard time with an application that writes sequentially
>> 250GB of non-stop data directly to a solid state disk (OCZ SSD CORE
>> v2) device and I hope you can help me. The command "dd if=/dev/zero
>> of=/dev/sdc bs=4M" reproduces the same symptoms I'm having and writes
>> exactly as that application does.
> What's your kernel version?  Can the following patch help?

Sorry for the delay, but I could not test it before.

Unfortunately it did not help or change any symptoms at all. The
kernel version I tested was a non-patched version.

Do you have any other hint?

Fernando Silveira <fsilveira@xxxxxxxxx>
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at