[issue1872] nfs stall (fix pushed)

["Thomas Nikolajsen \(via DragonFly issue tracker\)" <sinknull@xxxxxxxxxxxxxxxxxxxxx>]

Thomas Nikolajsen <thomas.nikolajsen@mail.dk> added the comment:

Some more info:
console messages are like:
got bad cookie vp 0xe09ddf38 bp 0xc480aa6c
[diagnostic] cache_lock: blocked on 0xe32b26d8 "rate_sample"

The bad cookie lines doesn't seem to cause stall, only the cache_lock lines.

It seems like stall on /usr/src, as doing 'du /usr/obj' on same NFS client
works after stall, but 'du /usr/src' stalls, with same cache_lock console
message, when it reaches the file.

>From other NFS client no problem is seen, e.g. installkernel / installworld
worked.

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DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1872>
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