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