Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()

[WU Fengguang <wfg@mail.ustc.edu.cn>]

Hi Balbir,

[add CC to LKML]

On Sun, Aug 12, 2007 at 05:27:52PM +0530, Balbir Singh wrote:
> For some reason my mailer keeps removing you from the cc.

Or maybe it's my SMTP server's problem. Email systems are complex.

> >>> Thats a valid point. It would be interesting to see what the overcommit
> >>> setting was, when the panic occurred.
> >> FYI, I do have nondefault overcommit settings:
> >>
> >> vm.overcommit_memory = 2
> >> vm.lowmem_reserve_ratio = 1 1
> > 
> > Yes, the bug disappears when changing to default overcommit_memory!
> > 
> 
> Great! So the problem might have existed for some time, but we never
> saw it due to default over commit values? Were you using these values
> for over commit even before?

No I changed it several weeks ago to stop my desktop from freezing.
So yes, the bug may have been there for a while.

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