DragonFly bugs List (threaded) for 2012-08
[DragonFlyBSD - Bug #2296] panic: assertion "m->wire_count > 0" failed
Issue #2296 has been updated by Matthew Dillon.
I believe there is a race in vm_page_protect() --> pmap_page_protect(). I
have not been able to find it. However, all the crashes came from the
same path from vm_fault in a situation where we don't actually have to
You can try this patch:
This removes the unnecessary call for the code path in question. It
is NOT a fix, but if the crashes go away then I'll know for sure
that it's an issue w/vm_page_protect().
Bug #2296: panic: assertion "m->wire_count > 0" failed
Author: Thomas Nikolajsen
Status: In Progress
With recent (29/1-12) master and rel3_0 I get this panic
during parallel make release and buildworld, e.g.:
'make MAKE_JOBS=10 release' (i.e. make -j10)
(custom kernel, includes INCLUDE_CONFIG_FILE)
on 8 core host (opteron).
Got this panic twice; succeeds w/o MAKE_JOBS
Core dump at leaf: ~thomas:crash/octopus.i386.3
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