CVS commit: src/sys/arch/m68k

["Izumi Tsutsui" <tsutsui%netbsd.org@localhost>]

Module Name:    src
Committed By:   tsutsui
Date:           Sat Oct 29 18:26:20 UTC 2011

Modified Files:
        src/sys/arch/m68k/include: pmap_motorola.h
        src/sys/arch/m68k/m68k: pmap_motorola.c

Log Message:
Use pool(9) for struct pv_entry allocations rather than
uvm_km_alloc(9)/uvm_km_free(9) and ancient homegrown pv_page_info structures.

Calling uvm_km_free(9) during pmap_remove(9) could cause rw_lock error
in uvm_unmap1() as noted in PR port-m68k/45519.

NetBSD/x68k (both real X68030 and XM6i emulator) still gets weird panic
(corrupted kernel stack pointer?) on some heavy load:
---
panic: MMU fault
Stopped in pid 363.1 (X68k) at  netbsd:cpu_Debugger+0x6:        unlk    a6
db> tr
cpu_Debugger(4012004,8,1cbb528,2a618e0,2a5b000) + 6
db>
---
but it also occurs without this change so there might be some more bugs
in m68k pmap...


To generate a diff of this commit:
cvs rdiff -u -r1.33 -r1.34 src/sys/arch/m68k/include/pmap_motorola.h
cvs rdiff -u -r1.62 -r1.63 src/sys/arch/m68k/m68k/pmap_motorola.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.