[haiku-bugs] Re: [Haiku] #9377: Network Stack Deadlock
- From: "jackburton" <trac@xxxxxxxxxxxx>
- Date: Sat, 19 Jan 2013 20:16:30 -0000
#9377: Network Stack Deadlock
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Reporter: jackburton | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Network & Internet/Stack | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by jackburton):
From the backtrace of the two threads, the lock inversion is clear: the
wpa_supplicant thread calls get_interface() which locks the
"net_interfaces" mutex, then CreateDomainDatalinkIfNeeded() try to acquire
the recursive lock of the interface.
The ifconfig thread, on the other hand, first acquire the interface lock
in Interface::SetDown(), then (through the ipv6 protocol add-on) calls
get_interface() which tries to acquire the net_interfaces mutex.
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Ticket URL: <http://dev.haiku-os.org/ticket/9377#comment:3>
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