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(parent: 6388f61) | patch
kernel -- vm_object locking: DEBUG_LOCKS check for hold_wait vs hold deadlock
authorVenkatesh Srinivas <me@endeavour.zapto.org>
Sun, 27 Mar 2011 14:20:20 +0000 (07:20 -0700)
committerVenkatesh Srinivas <me@endeavour.zapto.org>
Sun, 27 Mar 2011 14:20:20 +0000 (07:20 -0700)
commitcb443cbb47dab690574674c82ee9407c28deb544
treed61ae1e46d2f91e18ff272329d98914a6e7eb793tree | snapshot
parent6388f6146370f416477ebad89b2aa27f81853e29commit | diff
kernel -- vm_object locking: DEBUG_LOCKS check for hold_wait vs hold deadlock

If a thread has a hold on a vm_object and enters hold_wait (via either
vm_object_terminate or vm_object_collapse), it will wait forever for the hold
count to hit 0. Record the threads holding an object in a per-object array.
sys/vm/vm_object.c diff | blob | blame | history
sys/vm/vm_object.h diff | blob | blame | history
Nuno's DragonFly repo.