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Am 22.08.2012 22:32, schrieb Jorge Almeida: |
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> On Wed, Aug 22, 2012 at 8:05 PM, Michael Mol <mikemol@×××××.com> wrote: |
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>> On Wed, Aug 22, 2012 at 2:52 PM, Jorge Almeida <jjalmeida@×××××.com> wrote: |
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>>> # tar -xJvf /usr/portage/distfiles/m4-1.4.16.tar.xz |
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>>> xz: (stdin): Cannot allocate memory |
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>>> |
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>>> The box has 2G ram + 1G swap. I'm installing Gentoo from an existing distro. |
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>> |
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>> How much do you have free? From xz's manpage: |
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> |
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> Almost all of it! It's a one-user workstation, which was essentialy idle. |
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>> |
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>> |
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> I read the man page of xz, but it suggested nothing to me. |
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>> |
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>> Three things come to mind: |
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>> |
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>> 1) You may not have enough memory free |
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>> 2) There may be a bug (either compile/link-induced or code-induced) in |
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>> the copy of xz you're using |
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>> 3) Upstream used some insane settings, causing a massive increase in |
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>> the amount of RAM required to decompress that stream. |
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>> |
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>> |
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>> You could download the .tar.xz file, decompress it on a different box, |
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>> and then recompress it with lighter settings. |
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>> |
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>> unxz filename.tar.xz |
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>> xz -1 filename.tar |
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>> |
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> Done that. It extracts now, so 3) is the correct hypothesis, and "insane" is |
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> really the appropriate word. Of course, the hash digests are now wrong, so |
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> emerge still fails. Any idea how to find which amount of memory is needed? I |
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> would setup appropriate swap, if possible. [...] |
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|
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There is a table in `man xz` showing the memory requirements. Even with |
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the highest setting, you only need 65 MB memory for decompression (674 |
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MB for compression, though). |
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|
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Regards, |
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Florian Philipp |
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