[lkml]   [2006]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Linux
    On Mon, Jan 30, 2006 at 11:34:27PM -0800, Andrew Morton wrote:

    > - A skbuff_head_cache leak causes oom-killings.
    > All of these only seem to affect a small minority of machines.


    I have searched for a description for the above mentioned bug report,
    but havent found any. Can you tell me?

    The reason why I am asking that I am facing a similar problem on
    kernel 2.6.10. During performance tests (Intel XEON, SMP, PCI-X,
    e1000, 2 - 4 Gig RAM) the machine was out of memory.

    Tests showed that LowFree went linearly down to a few megabytes, where
    most of the memory was used in skb_head_cache and size-1024 slab
    caches. These two summed up to ~270 MG, which was the reason for

    /proc/net/tcp showed that most of the memory was stuck in the RX
    queues of some processes (two processes with ~1000 sockets each).

    A look into /proc/sys/net/ipv4/tcp_mem showed that that the values in
    there were way to high. I hope that a reduction of these values will
    help (not done yet).


    ICQ 2882018 ++ Jabber: ++
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-02-03 13:39    [W:0.021 / U:38.436 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site