Bug#703356: megasas: Failed to alloc kernel SGL buffer for IOCTL (ref.#688198)
Jean-Francois Chevrette <jf.cron0@gmail.com> writes:
> On Tue, Mar 19, 2013 at 4:21 AM, Bjørn Mork <bjorn@mork.no> wrote:
>
>> Maybe we can get some ideas about why this fails if you describe the
>> conditions you experience the problem under.
>
> This server is running Xen 4.1 and a single VM. Nothing fancy there.
> It's also running DRBD to replicate a device to another server. It's
> also running a few userland tools for monitoring (nagios) and graphing
> (munin). Other than that nothing fancy.
>
> Nagios is the one calling MegaCli to monitor the array consistency.
>
> One thing to note is that after a server reboot, the MegaCli tool
> works fine for a while. This does sounds like there's leak somewhere.
>
> I just found out that this server is also running a service called
> MegaRAID Storage Manager which is a tool provided by LSI to manage the
> array through a java GUI. Maybe this tool is somehow causing this
> problem.
That sounds like a very likely suspect, yes.
> Stopping it didn't solve the problem. I'll try disabling the
> tool and reboot without ever starting it to see if the problem occurs
> again.
Good. If that works then we probably should find out what this tool
does to trigger the problem, so that it can be handled properly by the
driver.
Bjørn
Reply to: