DragonFly commits List (threaded) for 2012-10
git: kernel - Probable fix to vm_fault: PG_BUSY panic on i386
Author: Matthew Dillon <email@example.com>
Date: Wed Oct 10 14:47:57 2012 -0700
kernel - Probable fix to vm_fault: PG_BUSY panic on i386
* The info structure for the pmap_inval*() API is only initialized
conditionally as an optimization.
* There was a case where the info structure was being used without
first being initialized which matches reported panics (essentially
a pipe buffer page in kernel memory is swapped out and the faulted back
in during a uiomove).
Reported-by: vsrinivas, marino, several others
Summary of changes:
sys/platform/pc32/i386/pmap.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
DragonFly BSD source repository