RE: [HACKERS] spinlock freeze again

> -----Original Message-----
> From: Bruce Momjian [mailto:maillist(at)candle(dot)pha(dot)pa(dot)us]
> Sent: Thursday, July 08, 1999 10:09 AM
> To: Hiroshi Inoue
> Cc: pgsql-hackers
> Subject: Re: [HACKERS] spinlock freeze again
>
>
> > > Are their any locks acquired before InitProcess()?
> > >
> >
> > OidGenLockId spinlock is acquired in InitTransactionLog().
> >
> > Regards.
> >
>
> Well, seems we have a Proc queue that holds locks, but for these other
> cases, we don't. We could use the on_shmexit queue to add an cleanup
> handler once we get the lock, and remove it from the queue once we
> release the lock. We don't currently have the ability to remove
> specific queue entries, but we could easily do that.
>
> Is the lock failure a problem that happens a lot?
>

It doesn't happen oridinarily.
I don't remember well how it happend.
Probably it was caused by other spinlock(io_in_progress_lock ?)
freeze while testing 6.5-beta.

Regards.

Hiroshi Inoue
Inoue(at)tpf(dot)co(dot)jp