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ArturasB
n00b
Joined: 20 Sep 2002
Posts: 47
Location: Vilnius, Lithuania
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 Posted: Thu Oct 10, 2002 6:45 am Post subject: SHM Extension issue |
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Hello everybody.
I have a question about the SHM extension of X11 - is the X server
that commes with Gentoo v1.2 pre-patched with this one ? If no -
where can I download it from ?
Thanks for your help in advance.
Best regards,
Art?ras B. |
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rac
Bodhisattva
Joined: 30 May 2002
Posts: 6553
Location: Japanifornia
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| Posted: Thu Oct 10, 2002 7:05 am Post subject: |
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I think it's included: | Code: | $ grep SHM /var/log/XFree86.0.log
(II) Initializing built-in extension MIT-SHM |
_________________
For every higher wall, there is a taller ladder |
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ArturasB
n00b
Joined: 20 Sep 2002
Posts: 47
Location: Vilnius, Lithuania
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| Posted: Thu Oct 10, 2002 7:20 am Post subject: |
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| rac wrote: | I think it's included: | Code: | $ grep SHM /var/log/XFree86.0.log
(II) Initializing built-in extension MIT-SHM |
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Hmmmm..... I don't "feel" it....
I have Duron 700 MHz, 128 MB of RAM, ATI All-In-Wonder Pro
(based on Rage Pro chip), I also use ATI drivers made by GATOS
(http://gatos.sourceforge.net), but XINE, for example, was smooter
on the same machine but with SuSe v7.3 (GATOS drivers + SHM).......
What could be wrong ?.... |
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mglauche
Retired Dev
Joined: 25 Apr 2002
Posts: 564
Location: Germany
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| Posted: Thu Oct 10, 2002 8:32 pm Post subject: |
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did you put /dev/shm in your /etc/fstab ?
| Code: |
# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink). Adding the following
# line to /etc/fstab should take care of this:
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will use almost no
# memory if not populated with files)
tmpfs /dev/shm tmpfs defaults 0 0
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mglauche
Retired Dev
Joined: 25 Apr 2002
Posts: 564
Location: Germany
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| Posted: Thu Oct 10, 2002 8:33 pm Post subject: |
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| OT: why is this line commented out by default ?? |
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ArturasB
n00b
Joined: 20 Sep 2002
Posts: 47
Location: Vilnius, Lithuania
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| Posted: Fri Oct 11, 2002 6:04 am Post subject: |
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| mglauche wrote: | did you put /dev/shm in your /etc/fstab ?
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Hmmm... Nop 
I'll try it, thanks for this idea.
Regards,
Arturas B.
P.S.: BTW, where can I read more about usage of SHM ? |
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ArturasB
n00b
Joined: 20 Sep 2002
Posts: 47
Location: Vilnius, Lithuania
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| Posted: Fri Oct 11, 2002 7:52 am Post subject: |
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| ArturasB wrote: | | mglauche wrote: | did you put /dev/shm in your /etc/fstab ?
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Hmmm... Nop
I'll try it, thanks for this idea.
Regards,
Arturas B.
P.S.: BTW, where can I read more about usage of SHM ? |
P.P.S.: how exatcly the line with /dev/shm in the fstab should look like ?
What parameters shall I specify there ?
Thanks in advance. |
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mglauche
Retired Dev
Joined: 25 Apr 2002
Posts: 564
Location: Germany
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| Posted: Fri Oct 11, 2002 2:17 pm Post subject: |
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the example above is a working fstab line.
do a mount -a, then df to see if its working  |
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gillesg
Tux's lil' helper
Joined: 17 Sep 2002
Posts: 90
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| Posted: Fri Oct 11, 2002 2:37 pm Post subject: |
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How can you tell it is used by XFree?
When XFree is running you can still umount /dev/shm.
Surprising 
Gilles |
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