Hi rwatson, thanks for your response :)
Robert Watson wrote:
On Fri, 25 Apr 2008, Daichi GOTO wrote:
daichi 2008-04-25 09:53:52 UTC
FreeBSD src repository
Modified files:
sys/fs/unionfs union_subr.c
Log:
o Improved unix socket connection issue
fixed: kern/118346
PR: kern/118346
Submitted by: Masanori OZAWA ([EMAIL PROTECTED])
MFC after: 1 week
Goto-san,
Per my earlier e-mail, and assuming I understand correctly, I feel not
only will this lead to new panics (due to dangling socket pointers and
incomplete garbage collection),
We, I and ozawa-san, cannot image the case that leads new panic.
Would you tell us how to get the panic if you can get it? Is it
rare case to get or not?
but it will also lead to possibly
incorrect semantics for unionfs (upper layers can write to objects
readable via the lower layer).
> Some parts of this patch are fine, but
the copying of v_socket pointers between layers is not correct. Please
consider backing that part of the change out.
Yes, we have noticed above. But.... at least, our patch solves
problem of http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/118346
we believe. If I roll back that, that problem is still there.
Uhmmm... is it better to get back it? And if you have some ideas
to solve this issue, please tell us :) Thanks
Thanks,
Robert N M Watson
Computer Laboratory
University of Cambridge
--
Daichi GOTO, http://people.freebsd.org/~daichi
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