Re: Couldn't allocate an sk_buff (2.0.4)

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sun, 14 Jul 1996 17:08:17 +0100 (BST)

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In reply to: David Schwartz: "Couldn't allocate an sk_buff (2.0.4)"

> network I/O (ftp over local LAN). I really doubt I ran out of swap though.
> Perhaps the system couldn't swap fast enough?

Bang on. The kernel tries to keep a pool of pages free for allocation during
an interrupt. It can't swap during an interrupt. A few like that are harmless,
the machine just dropped about 10 packets from your trace. Those drops as
part of the TCP protocol cause the other end to slow sending to what you can
take without drops

Alan

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