[Varnish] #796: ban lurker deadlock in varnish 2.1.3
Varnish
varnish-bugs at varnish-cache.org
Wed Nov 3 10:06:21 CET 2010
#796: ban lurker deadlock in varnish 2.1.3
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Reporter: ryan.krebs | Owner: phk
Type: defect | Status: closed
Priority: normal | Milestone:
Component: varnishd | Version: 2.1.3
Severity: normal | Resolution: fixed
Keywords: ban lurker deadlock |
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Comment(by tfheen):
(In [5495]) Merge r5432: Fix lock-order inversion in ban lurker thread
There is a potential lock-order inversion between a worker thread
and the ban-lurker and there is nothing we can do about it: They
come from opposite ends of the world.
Resolve this by using a TryLock in the ban-lurker and abandon the
attempt if we fail to get the lock.
Fixes: #796
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Ticket URL: </ticket/796#comment:2>
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