Messages in this thread | | | Date | Fri, 16 Jan 2004 09:45:47 +0900 | From | GOTO Masanori <> | Subject | Re: [PATCH] Increase recursive symlink limit from 5 to 8 |
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At Sun, 11 Jan 2004 10:49:30 +0100, Arjan van de Ven wrote: > > 6 does seem pretty low. What was the reason for setting it there? Is > > there a downside to increasing it? > > It was reduced down from 8 because it can lead to stack overflows. > Recursive links like this usually point at a quite broken filesystem > setup too afaik.
But I still think 6 is too small from user level point of view, as Petter wrote. The example is /usr/lib library links. I got bug report which complained that a library want to use "bounce" link:
/usr/lib/liba -> /etc/alternatives/liba -> /usr/lib/another/libb.
If .so file uses major.minor scheme, then /usr/lib/liba.so links:
/usr/lib/liba.so -> /usr/lib/liba.so.2 -> /usr/lib/liba.so.2.3
and so on. It can easily exceed 6 symlinks. I think the correct fix is to make VFS not to overflow stacks. Is it allowable change?
Regards, -- gotom
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