The arbitrary value
#define MNAMELEN 88 /* size of on/from name bufs */
struct statfs {
[...]
char f_mntfromname[MNAMELEN];/* mounted filesystem */
char f_mntonname[MNAMELEN]; /* directory on which mounted */
};
currently bites us when trying to use poudriere with errors like
'mount: tmpfs: File name too long'
/poudriere/data/build/91_RELEASE_amd64-REALLY-REALLY-LONG-JAILNAME/ref/wrkdirs
The topic has been discussed several times since 2004 and has been
postponed each time, the last time when it hit zfs users:
http://lists.freebsd.org/pipermail/freebsd-fs/2010-March/007974.html
So I'd like to point to the calendar, it's 2013 already and there's
still a static arbitrary (and way too low) limit in one of the core
areas of the vfs code.
So I'd like to bump the issue and propose either making f_mntfromname a
dynamic allocation or just increase MNAMELEN, using 10.0 as water shed.
Regards,
erdgeist
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