Re: problem with 2.4.0-test9-pre6 seems to be SHM

From: safemode (safemode@voicenet.com)
Date: Sat Sep 23 2000 - 13:50:28 EDT

  • Next message: David Ford: "Re: problem with 2.4.0-test9-pre6 seems to be SHM"

    One more little complaint.. why doesn't vger replace the FROM to
    linux-kernel@vger.kernel.org like any other sane mailing list ... i
    keep going to Reply and not sending to the list. At least add a
    reply-to tag like the proftpd mailing list has if you want to keep the
    FROM tag as the original sender.


    attached mail follows:


    David Ford wrote:

    > I think it's time to get Christoph on the line and see what he has to say. The
    > 4096 number is a limit to the system, you can have a max of 4096 shared memory
    > segments systemwide. Do you know offhand which programs are using(abusing)
    > shm?
    >
    > -d
    >
    > safemode wrote:
    >
    > > David Ford wrote:
    > >
    > > > No, those two are often empty. Does the total of the first group's bytes
    > > > column match the used column of df?
    > > >
    > > > -d
    > >
    > > The sum of the Bytes used in the 4096 entries ipcs shows is WAY off from the
    > > bytes used in df if that's what you wanted to know. df shows 109K in
    > > use... and that's easily beaten by the first entry in ipcs
    > >
    > > ------ Shared Memory Segments --------
    > > key shmid owner perms bytes nattch status
    > > 0x00000000 32769 root 600 503808 2 dest
    > > 0x00000002 131074 root 600 196608 2
    > > 0x00000003 163843 root 600 655360 2
    > > 0x00000000 3997700 root 777 5240 1 dest
    > > 0x00000000 4030469 root 777 5060 1 dest
    > > 0x00000000 4063238 root 777 4700 1 dest
    > >
    > > this is the first 6 entries ... i'm not sure what you're getting at with
    > > this though..
    >
    > --
    > "There is a natural aristocracy among men. The grounds of this are
    > virtue and talents", Thomas Jefferson [1742-1826], 3rd US President

    When in doubt. . Blame it on the biggest piece of crap around .. X. One can
    say using a cvs of X is the cause of this by somehow i doubt it would matter. X
    needs a sane make system and i'll bet 10:1 that it's the root of this shm usage.
    But it should not be crashing the OS ...which does occur since i just went down a
    couple minutes ago. Right now it's increasing 1 segment a second it seems. it's
    at 1200 now and i give it about 30 more minutes before i crash again. I'm gonna
    run this on the test8-vm3 patched kernel i had before that was VERY good except
    for that deadlock problem that caused me to crash after 7 days. If the shm usage
    is insane on that then i'll believe it is X's fault. be back with the results
    in a few minutes.

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    Please read the FAQ at http://www.tux.org/lkml/



    This archive was generated by hypermail 2b29 : Sat Sep 23 2000 - 13:52:35 EDT