Berkeley CSUA MOTD:Entry 39934
Berkeley CSUA MOTD
2018/11/14 [General] UID:1000 Activity:popular

2005/9/30-10/3 [Computer/HW/Memory, Computer/SW/OS] UID:39934 Activity:nil
9/30    I've got a Via C3 (using kernel-image-2.4.27-2-586tsc) and 1504 MB
        of RAM. Only 904 MB shows up with the "free" command. Is there a way
        to get this kernel to see/use all the available ram? or do I need
        a newer (or custom compiled) kernel?
        \_ you need a kernel compiled with bigmem support, or something like
           that. or highmem. i forget the exact term.
           \_ Great! Thanks. I think I found it: CONFIG_HIGHMEM4G   -op
           \_ Great! Thanks. I think I found it: CONFIG_HIGHMEM   -op
2018/11/14 [General] UID:1000 Activity:popular

You may also be interested in these entries...
2012/1/4-2/6 [Computer/HW/Drives] UID:54281 Activity:nil
1/4     I want to test how my servers behave during a disk failure and
        a RAID reconstruction so I want to simulate a hardware failure.
        How can I do this in Linux without having to physically pull
        a drive? These disks are behind a RAID card and run Linux. -ausman
        \_ According to the Linux RAID wiki, you might be able to use mdadm
           to do this with something like the following:
2011/2/14-4/20 [Computer/SW/Unix] UID:54039 Activity:nil
2/14    You sure soda isn't running windows in disguise?  It would explain the
        \_ hardly, My winbox stays up longer.
        \_ Nobody cares about uptime anymore brother, that's what web2.0 has
           taught us.  Everything is "stateless".
           \_ You;d think gamers would care more about uptime.
2011/2/5-19 [Computer/SW/Languages/C_Cplusplus] UID:54027 Activity:nil
2/4     random C programming/linker fu question.  If I have
        int main() { printf("%s is at this adddr %p\n", "strlen", strlen); }
        and soda's /proc/sys/kernel/randomize_va_space is 2 (eg; on)
        why is strlen (or any other libc fn) at the same address every time?
        \_ I don't pretend to actually know the right answer to this, but
           could it have something to do with shared libraries?
2010/3/12-30 [Computer/SW/OS/Windows] UID:53754 Activity:nil
3/12    When writing functions and structs in Windows user-mode and kernel-mode
        code, when do you use IN/OUT, when do you use __in/__out, and when do
        you not use either?  I'm confused.  Thanks in advance.
2009/8/2-11 [Computer/SW/Unix] UID:53229 Activity:nil
8/1     What keeps hapening to soda? load of O(1000) then crash?  Is it
        still nfs, even past the new kernel we did just for nfs?
        \_ It's still NFS. Filer plz kthxbai.
           \_ Filer eliminates NFS?
2009/7/24-27 [Computer/SW/WWW/Browsers, Computer/SW/OS/OsX] UID:53191 Activity:kinda low
7/24    Firefox 3.5.1 on MacOS is a piece of crap. It crashes ALL THE TIME.
        It has crashed 3 or 4 times on me in the last hour, and not on
        the same pages either. The new Yahoo! home page also sucks ass.
        \_ os x keeps trashing my raid disk: '11 hours to rebuild. have fun
           with the kernel IO subsystem running like shit until then".
           Worthless piece of shit.
2009/7/21-24 [Computer/SW/Languages/Java] UID:53168 Activity:moderate
7/20    For those who care btw, it looks like eclipse is now A Standard Tool
        at UCB ugrad cs, probably replaced emacs.  Furthermore, people get
        angry at seeing Makefiles, (since eclispe takes care of that).  I
        guess it's just a sign of the times.
        \_ The more people at my work use eclipse the less the code is
           managable in emacs.  I'm not sure which application's fault
2009/2/13-18 [Computer/HW/Memory, Computer/Domains] UID:52565 Activity:nil
2/13    Question about memory relocation:
        These days most h/w has a relocation register. Could the relocation
        address be stored on disk or in kernel memory vs. in a register? Yes,
        that would be slow but is it possible? Do you *need* a relocation
        register or does it exist purely for performance reasons? I was
        reading some paper written by IBM in the 1960s that seemed to
2009/1/20-26 [Computer/SW/OS, Computer/HW/Display, Computer/SW/OS/Linux] UID:52419 Activity:kinda low
1/20    when I do "cat /proc/sys/kernel/tainted"
        I got a single number "1"
        what does this mean?
        \_ I think this refers to whether you've got any non-open-source drivers
           loaded, but I'm not sure.
        \_ I think this refers to whether you've got any non-open-source
2009/1/13-22 [Computer/HW/Laptop] UID:52371 Activity:nil
1/13    I've been using Ubuntu as my primary laptop for 3-4 month.  But there
        are still alot of things i need to learn... for example, after an
        application crashes, where do I look for any sort of logs that might
        give me a clue what happened?  how linux monitor the crashes?  So far,
        i had two bad episode of thunderbird trying to log onto my company's
        remote LDAP server and actually crashed the entire system... (as if
2009/1/2-8 [Computer/HW, Computer/HW/Drives] UID:52310 Activity:low
12/31   SOMEONE PLEASE FIX KEG!  Why does it keep crashing?
        \_ It's hard to tell. The risk of crashing seems to increase with
           disk activity, or so it seems, but debugging the kernel doesn't
           seem to yield much info. Email root for detailed info; I don't
           have a deep understanding of the problem --t
           \_ How about a backup LDAP server? I don't need files as much
2008/12/7-10 [Computer/SW/OS/Linux] UID:52189 Activity:low
12/6    I'm running 64bit VMWare 2.0 in debian lenny/testing.  I have 18
        guest VMs running, all in bridged mode.  Works great.  the 19th VM
        I turn on has no working network.  No net, dhcp/tftp doesn't work,
        nothing.  Can anyone think of a network or kernel setting in Linux
        that would prevent any more VMs from getting network access?
        Is there a limit on number of bridge interfaces?  Where is this