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SubjectRe: Your rename change and loopback


On Sat, 22 May 1999, H.J. Lu wrote:

> 1. 2.2.9 + the patch above. It seems ok so far.
> 2. 2.2.6 + the patch above. I am getting kernel messages:
> Attempt to refile free buffer
> Attempt to refile free buffer
> Attempt to refile free buffer
> Attempt to refile free buffer
> Attempt to refile free buffer
> Attempt to refile free buffer

> I will let it run over the weekend.

Grrrr... I've looked through the buffer.c interaction with loop.c and I
got some questions (read: caught several suspicious places).

a) While irrelevant in this situation, anti-deadlock protection (allowance
for 2-fold amount of requests) will break violently for loopback over
loopback.
b) Maybe more relevant here: do_lo_request() calls bmap(). Which can
easily lead to several bread() calls. There we go again.

First of those is almost certainly a bug. I'm less sure about the second
one, though. Could somebody comment on those? Andrea? You've dealt with
buffer.c lately...


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