memory problem with fec on 8250

Samo Pogacnik samo.pogacnik at
Wed Jan 7 09:03:14 EST 2004

On Tuesday 06 January 2004 08:47, Wojciech Kromer wrote:
> sure, just 4 lines addes
> >did you free skbuffs from the irq handler or somewhere else?
> just before allocation
> >when i run netperf (snapshot) test using the 100Mbps connection, this
> >test eats all the available RAM. the /proc/meminfo shows that most
> >of the used memory at that point is been held by internal kernel
> >structures (Slab).
> better reults are shwn with grep skb /proc/slabinfo
> here it is:
Thank you for the tips and the patch.
Eth seems to be working now without eating the RAM.

By the way that you have solved the problem, I suspect that BDs are written
over the dirty_tx limit, before their associated skbs get freed via the irq

bye, Samo

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