On Sat, 6 May 2017 14:28:51 -0400 John Blinka wrote: > Hi, all, > > For some time I've been getting messages like: > > cannot properly execute > /var/lib/layman/science/virtual/lapack/lapack-3.6-r100.ebuild > > for *every* package in the science overlay. This happened on 2 of 3 > very similar gentoo > systems I maintain, but not the third. As far as I could tell, the > permissions and > ownership of all /etc/portage and /usr/portage and /var/lib/layman > files and directories > are identical. All the machines have the same /etc/passwd and /etc/group > files, > the same /var/lib/portage/world files, and so on. I've gone to some > effort to make these > machines as identical as possible. I have done layman -d science then layman > -a > science to see if wiping out the overlay then reinstalling it would > help, but that makes no > difference. > > Googling the error produces just a few hits that recommend permissions > and ownerships > that helped solve this problem for others, but don't help me. > > It appears that this error message comes from /usr/bin/eix. I've > looked through the > source code a bit, but it's been long enough since I've messed with C > that this didn't > yield any answers. > > strace indicates that eix does an lstat on every element of > /var/lib/layman/science/virtual/lapack/lapack-3.6-r100.ebuild before > deciding to print the > error message. It also indicates that eix does a setuid and setgid to > portage:portage > early in its execution. As far as I can tell, portage:portage ought > to be able to both read > and execute this ebuild (and all the other ones eix complains about). > > And now, out of the blue apparently, the third system has started > spitting out this error > message as well. > > Any ideas on how to debug this?
First of all, update all affected parties to the latest versions (eix, portage, layman). Second, use divide and conqueror strategy. If this is the eix problem, isolate it to eix only without invoking layman (or emaint sync -a or what on the earth you were doing?!). Try with eix-update. If problem persists, look for what eix cache method you are using: see man eix for the list, there are many of them. Since you have exec error, it likely is ebuild, try to change it to parse or metadata. Best regards, Andrew Savchenko
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