Garrett Cooper wrote:
2010/4/20 Miroslav Lachman<[email protected]>:
I have large storage partition (/vol0) mounted as noexec and nosuid. Then
one directory from this partition is mounted by nullfs as "exec and suid" so
anything on it can be executed.
The directory contains full installation of jail. Jail is running fine, but
some ports (PHP for example) cannot be compiled inside the jail with
message:
/libexec/ld-elf.so.1: Cannot execute objects on /
The same apply to executing of apxs
r...@rainnew ~/# /usr/local/sbin/apxs -q MPM_NAME
/libexec/ld-elf.so.1: Cannot execute objects on /
apxs:Error: Sorry, no shared object support for Apache.
apxs:Error: available under your platform. Make sure.
apxs:Error: the Apache module mod_so is compiled into.
apxs:Error: your server binary '/usr/local/sbin/httpd'..
(it should return "prefork")
So I think there is some bug in checking the mountpoint options, where the
check is made on "parent" of the nullfs instead of the nullfs target
mountpoint.
It is on 6.4-RELEASE i386 GENERIC. I did not test it on another release.
This is list of related mount points:
/dev/mirror/gm0s2d on /vol0 (ufs, local, noexec, nosuid, soft-updates)
/vol0/jail/.nullfs/rain on /vol0/jail/rain_new (nullfs, local)
/usr/ports on /vol0/jail/rain_new/usr/ports (nullfs, local)
devfs on /vol0/jail/rain_new/dev (devfs, local)
If I changed /vol0 options to (ufs, local, soft-updates) the above error is
gone and apxs / compilation works fine.
Can somebody look at this problem?
Can you please provide output from ktrace / truss for the issue?
I did
# ktrace /usr/local/sbin/apxs -q MPM_NAME
The output is here http://freebsd.quip.cz/ld-elf/ktrace.out
Let me know if you need something else.
Thank you for your interest!
Miroslav Lachman
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