• [gentoo-user] Cannot shutdown or reboot because of logind disconnection

    From johnstrass@21:1/5 to All on Sat Sep 17 04:50:01 2022
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    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Walter Dnes@21:1/5 to johnstrass on Sat Sep 17 08:20:02 2022
    On Sat, Sep 17, 2022 at 10:40:53AM +0800, johnstrass wrote

    Compiling gcc uses alot of memory, sometimes only less then 10MB
    left free ( I am doing this on a small yeeloong netbook with only
    1GB memory).

    Ouch, I'm surprised it compiles at all. The Gentoo install handbook https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation#MAKEOPTS
    has a dire warning about memory usage...

    Warning
    Using a large number of jobs can significantly impact memory
    consumption. A good recommendation is to have at least 2 GiB of RAM
    for every job specified (so, e.g. -j6 requires at least 12 GiB). To
    avoid running out of memory, lower the number of jobs to fit the
    available memory.

    You simply don't have enough ram. You might reduce the pain and the
    swapping by trying something like the following in make.conf (assuming
    you haven't already done it)

    MAKEOPTS="-j1"

    If this happens, what is the best way to reboot or shutdown?

    Try ye olde {CTRL}{ALT}{DEL}

    --
    I've seen things, you people wouldn't believe; Gopher, Netscape with
    frames, the first Browser Wars. Searching for pages with AltaVista,
    pop-up windows self-replicating, trying to uninstall RealPlayer. All
    those moments, will be lost in time like tears in rain... time to die.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From johnstrass@21:1/5 to All on Sat Sep 17 11:40:01 2022
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    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From tastytea@21:1/5 to [email protected] on Sat Sep 17 13:20:01 2022
    On 2022-09-17 17:37+0800 johnstrass <[email protected]> wrote:

    At 2022-09-17 14:15:51, "Walter Dnes" <[email protected]> wrote:

    On Sat, Sep 17, 2022 at 10:40:53AM +0800, johnstrass wrote

    Compiling gcc uses alot of memory, sometimes only less then 10MB
    left free ( I am doing this on a small yeeloong netbook with only
    1GB memory).

    Ouch, I'm surprised it compiles at all. The Gentoo install
    handbook
    https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation#MAKEOPTS
    has a dire warning about memory usage...





    Yep, I've got the gcc-12.2.0 natively compiled on this netbook using gcc-11.3.0, after 5+ days + a crash + 5more days.

    I set up a large swap and I've also set up the ccache which may
    speedup a little after the crash.


    Warning
    Using a large number of jobs can significantly impact memory
    consumption. A good recommendation is to have at least 2 GiB of RAM
    for every job specified (so, e.g. -j6 requires at least 12 GiB). To
    avoid running out of memory, lower the number of jobs to fit the
    available memory.

    You simply don't have enough ram. You might reduce the pain and
    the
    swapping by trying something like the following in make.conf
    (assuming you haven't already done it)


    MAKEOPTS="-j1"


    I will try next time. Thanks.



    If this happens, what is the best way to reboot or shutdown?


    Try ye olde {CTRL}{ALT}{DEL}




    I remember that I did try "CTRL+ALT+DEL" in such situations before,
    and most times it did not work but for one or two times it worked occasionally. I will try it again next time.

    You could also use “Magic SysRQ”s[1] to reboot the system forcefully
    but somewhat controlled. The traditional sequence is:
    r e i s u b (raising elephants is so utterly boring)[2]

    [1] <https://wiki.gentoo.org/wiki/Magic_SysRQ>
    [2] <https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html#what-are-the-command-keys>

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Michael@21:1/5 to All on Sat Sep 17 12:43:54 2022
    On Saturday, 17 September 2022 12:11:56 BST tastytea wrote:
    On 2022-09-17 17:37+0800 johnstrass <[email protected]> wrote:
    At 2022-09-17 14:15:51, "Walter Dnes" <[email protected]> wrote:
    On Sat, Sep 17, 2022 at 10:40:53AM +0800, johnstrass wrote

    Compiling gcc uses alot of memory, sometimes only less then 10MB
    left free ( I am doing this on a small yeeloong netbook with only
    1GB memory).

    Ouch, I'm surprised it compiles at all. The Gentoo install

    handbook

    https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation#MAKEOPTS >has a dire warning about memory usage...

    Yep, I've got the gcc-12.2.0 natively compiled on this netbook using gcc-11.3.0, after 5+ days + a crash + 5more days.

    I set up a large swap and I've also set up the ccache which may
    speedup a little after the crash.

    Warning

    Using a large number of jobs can significantly impact memory
    consumption. A good recommendation is to have at least 2 GiB of RAM
    for every job specified (so, e.g. -j6 requires at least 12 GiB). To
    avoid running out of memory, lower the number of jobs to fit the
    available memory.

    You simply don't have enough ram. You might reduce the pain and

    the

    swapping by trying something like the following in make.conf
    (assuming you haven't already done it)


    MAKEOPTS="-j1"

    I will try next time. Thanks.

    If this happens, what is the best way to reboot or shutdown?

    Try ye olde {CTRL}{ALT}{DEL}

    I remember that I did try "CTRL+ALT+DEL" in such situations before,
    and most times it did not work but for one or two times it worked occasionally. I will try it again next time.

    You could also use “Magic SysRQ”s[1] to reboot the system forcefully
    but somewhat controlled. The traditional sequence is:
    r e i s u b (raising elephants is so utterly boring)[2]

    [1] <https://wiki.gentoo.org/wiki/Magic_SysRQ>
    [2] <https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html#what-are-the -command-keys>

    Using MAKEOPTS="-j1" will help and a bigger swap will stop it crashing with OOM, but a more sensible solution is to compile and build big packages like gcc on a faster PC as binaries, then transfer and emerge on the slow PC with --usepkg, or --usepkgonly options. More info:

    https://wiki.gentoo.org/wiki/Binary_package_guide

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    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From johnstrass@21:1/5 to All on Sat Sep 17 14:30:01 2022
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    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Frank Steinmetzger@21:1/5 to All on Sat Sep 17 20:30:01 2022
    Am Sat, Sep 17, 2022 at 02:15:51AM -0400 schrieb Walter Dnes:
    On Sat, Sep 17, 2022 at 10:40:53AM +0800, johnstrass wrote

    Compiling gcc uses alot of memory, sometimes only less then 10MB
    left free ( I am doing this on a small yeeloong netbook with only
    1GB memory).

    Ouch, I'm surprised it compiles at all. The Gentoo install handbook https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation#MAKEOPTS
    has a dire warning about memory usage...

    […]

    You simply don't have enough ram. You might reduce the pain and the swapping by trying something like the following in make.conf (assuming
    you haven't already done it)

    MAKEOPTS="-j1"

    You could also have a look at zram/zswap to compress your RAM content. https://wiki.gentoo.org/wiki/Zram
    https://wiki.archlinux.org/title/Zswap

    --
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