Re: symlinks follow 8 or 5?

From: Tim Connors (tconnors+linuxkernel1091156355_at_astro.swin.edu.au)
Date: 07/30/04

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    To: FabF <fabian.frederick@skynet.be>
Date:	Fri, 30 Jul 2004 13:14:24 +1000

    FabF <fabian.frederick@skynet.be> said on Thu, 29 Jul 2004 07:34:39 +0200:
    > Hi,
    > do_follow_link comments is "This limits recursive symlink follows to 8"
    > ... but having (x=1->10) ln -s x+1 x and trying cat 1 just works for x <
    > 7 which drops follow mode to 5.Is this irrelevant ?

    This popped up a few years ago.
    http://www.ussg.iu.edu/hypermail/linux/kernel/9903.1/0018.html

    Obviously, nothing came about it. And I suspect the problem (running
    out of stack space) is even worse these days with 4k stacks. Why is
    this even done recursively?

    Note that 5 symlinks is quite a burden. I got hit by it a few days ago
    with my farm of symlinks between nfs RAID disks and my home directory
    (~/raid points to /nfs/cluster, papers refers to ~/raid/papers,
    Astro-ph refers to ~/papers/Astro-ph, and then I autofs shfs mounted
    ~/ from another host, which involve a couple of symlinks again (/host
    to /mnt/nfshost and /mnt/nfshost to /var/autofs/misc/host and ~/host
    to /host - the first two so that when the network goes down, all I
    have to do is remove (by script) /mnt/nfshost, and then autofs wont
    try to mount something it can't when something tries to access
    ~/host)). 

    -- 
TimC -- http://astronomy.swin.edu.au/staff/tconnors/
"We must use Tim as a tool, not as a couch." -- J F Kennedy
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