| From: | "MauMau" <maumau307(at)gmail(dot)com> |
|---|---|
| To: | "Heikki Linnakangas" <hlinnakangas(at)vmware(dot)com>, "Andres Freund" <andres(at)2ndquadrant(dot)com> |
| Cc: | "Craig Ringer" <craig(at)2ndquadrant(dot)com>, <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [9.4 bug] The database server hangs with write-heavy workload on Windows |
| Date: | 2014-10-14 12:59:15 |
| Message-ID: | B161FFF246D44EE7AD42C43C347F8117@maumau |
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| Lists: | pgsql-hackers |
From: "Heikki Linnakangas" <hlinnakangas(at)vmware(dot)com>
> Committed this.
Thank you very much. I didn't anticipate such a difficult complicated
cause. The user agreed to try the patch tonight. I'll report back the
result as soon as I got it from him.
BTW, in LWLockWaitForVar(), the first line of the following code fragment is
not necessary, because lwWaitLink is set to head immediately. I think it
would be good to eliminate as much unnecessary code as possible from the
spinlock section.
proc->lwWaitLink = NULL;
/* waiters are added to the front of the queue */
proc->lwWaitLink = lock->head;
Regards
MauMau
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