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SubjectRe: Kernel 2.6.9 Multiple Page Allocation Failures
P@draigBrady.com wrote:
>
> Andrew Morton wrote:
> > Lukas Hejtmanek <xhejtman@mail.muni.cz> wrote:
> >
> >>I found out that 2.6.6-bk4 kernel is OK.
> >
> >
> > That kernel didn't have the TSO thing. Pretty much all of these reports
> > have been against e1000_alloc_rx_buffers() since the TSO changes went in.
>
> This possibly related patch went into 2.6 and it bugged me
> as Ganesh didn't address the reservations mentioned in the thread:
> http://oss.sgi.com/projects/netdev/archive/2004-07/msg00704.html
>

The use of vmalloc() can cause consumption or fragmentation of the virtual
address space which is set aside for all vmalloc()s, but it will not cause
the particular problem which we're seeing here: exhaustion of the
interrupt-time page reserves.
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