FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F7.3 2010-02-13T11:24:11Z 2010-02-13T11:24:11Z Konstantin Belousov kib@FreeBSD.org 2010-02-13T11:24:11Z urn:sha1:7294ca01f607033e1b02780ceca35216085a6e60 Properly set MAP_ENTRY_WIRE_SKIPPED when aborting the loop. PR: kern/143717 (for RELENG_7) Approved by: re (bz) 2010-01-25T17:51:34Z John Baldwin jhb@FreeBSD.org 2010-01-25T17:51:34Z urn:sha1:14667f98deb4720016f06096a60ca44c96226566 Eliminate an unnecessary restriction on the vm object type from vm_map_pmap_enter(). The immediate effect of this change is that automatic prefaulting by mmap() for small mappings is performed on POSIX shared memory objects just the same as it is on ordinary files. Approved by: re (kib) 2009-10-04T13:03:07Z Konstantin Belousov kib@FreeBSD.org 2009-10-04T13:03:07Z urn:sha1:cf260edc3db5b5640c02ac97ba32ee1b731d13e2 Move the annotation for vm_map_startup() immediately before the function. 2009-09-14T17:34:49Z John Baldwin jhb@FreeBSD.org 2009-09-14T17:34:49Z urn:sha1:73ba9b1230cd8bcd9506e1794d484039e029c508 Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to a device pager (OBJT_DEVICE) object in that it uses fictitious pages to provide aliases to other memory addresses. The primary difference is that it uses an sglist(9) to determine the physical addresses for a given offset into the object instead of invoking the d_mmap() method in a device driver. 2009-05-05T09:16:57Z Konstantin Belousov kib@FreeBSD.org 2009-05-05T09:16:57Z urn:sha1:da9843b9b583566e5bb1f08dc8b58c7da799e0da When vm_map_wire(9) is allowed to skip holes in the wired region, skip the mappings without any of read and execution rights, in particular, the PROT_NONE entries. This makes mlockall(2) work for the process address space that has such mappings. Since protection mode of the entry may change between setting MAP_ENTRY_IN_TRANSITION and final pass over the region that records the wire status of the entries, allocate new map entry flag MAP_ENTRY_WIRE_SKIPPED to mark the skipped PROT_NONE entries. 2009-02-26T15:59:22Z John Baldwin jhb@FreeBSD.org 2009-02-26T15:59:22Z urn:sha1:15826f991ff92f0afe64311327d5a2f38aae5cbf superpage reservation system to the machine-independent VM system as well as changes to the pmap code for amd64 and i386 to support superpages. Reviewed by: alc Tested by: ps 2009-02-22T10:28:09Z Konstantin Belousov kib@FreeBSD.org 2009-02-22T10:28:09Z urn:sha1:dc9ca499f43703eb02c2110292356986a5646288 Do not leak the MAP_ENTRY_IN_TRANSITION flag when copying map entry on fork. Otherwise, copied entry cannot be removed in the child map. 2009-01-18T19:20:10Z Alan Cox alc@FreeBSD.org 2009-01-18T19:20:10Z urn:sha1:e1c1072eebe58fa2c0ec5ad211962b3641e845ce KERNBASE is not necessarily an address within the kernel map, e.g., PowerPC/AIM. Consequently, it should not be used to determine the maximum number of kernel map entries. Instead, use VM_MIN_KERNEL_ADDRESS, which marks the start of the kernel map on all architectures. 2008-01-18T10:02:53Z Konstantin Belousov kib@FreeBSD.org 2008-01-18T10:02:53Z urn:sha1:62b5cd7fa8c953b3499706215cf92d425fdced14 silent NULL pointer dereference in the i386 and sparc64 pmap_pinit() when the kmem_alloc_nofault() failed to allocate address space. Both functions now return error instead of panicing or dereferencing NULL. The reason for MFCing this so late in release cycle is, according to marius@, because > it fixes the crashing (though no panic) of the test suite > of the graphic/OpenEXR port on sparc64. This test suite is run > (and required to succeed) during the package build and that's > why portmgr@ bitch about at it as OpenEXR is a dependency of KDE > which in turn is supposed to end up on the release CD images. Revisions MFCed: 1.677 of src/sys/amd64/amd64/machdep.c 1.592 of src/sys/amd64/amd64/pmap.c 1.88 of src/sys/arm/arm/pmap.c 1.27 of src/sys/arm/at91/kb920x_machdep.c 1.22 of src/sys/arm/sa11x0/assabet_machdep.c 1.8 of src/sys/arm/xscale/i80321/ep80219_machdep.c 1.29 of src/sys/arm/xscale/i80321/iq31244_machdep.c 1.3 of src/sys/arm/xscale/i8134x/crb_machdep.c 1.6 of src/sys/arm/xscale/ixp425/avila_machdep.c 1.41 of src/sys/compat/pecoff/imgact_pecoff.c 1.26 of src/sys/compat/svr4/imgact_svr4.c 1.660 of src/sys/i386/i386/machdep.c 1.596 of src/sys/i386/i386/pmap.c 1.68 of src/sys/i386/ibcs2/imgact_coff.c 1.56 of src/sys/i386/linux/imgact_linux.c 1.226 of src/sys/ia64/ia64/machdep.c 1.192 of src/sys/ia64/ia64/pmap.c 1.102 of src/sys/kern/imgact_aout.c 1.179 of src/sys/kern/imgact_elf.c 1.56 of src/sys/kern/imgact_gzip.c 1.310 of src/sys/kern/kern_exec.c 1.287 of src/sys/kern/kern_fork.c 1.236 of src/sys/kern/kern_kse.c 1.253 of src/sys/kern/kern_proc.c 1.352 of src/sys/kern/kern_sig.c 1.63 of src/sys/kern/kern_thr.c 1.257 of src/sys/kern/kern_thread.c 1.397 of src/sys/pc98/pc98/machdep.c 1.104 of src/sys/powerpc/powerpc/machdep.c 1.10 of src/sys/powerpc/powerpc/pmap_dispatch.c 1.139 of src/sys/sparc64/sparc64/machdep.c 1.167 of src/sys/sparc64/sparc64/pmap.c 1.16 of src/sys/sun4v/sun4v/machdep.c 1.40 of src/sys/sun4v/sun4v/pmap.c 1.493 of src/sys/sys/proc.h 1.78 of src/sys/sys/signalvar.h 1.80 of src/sys/vm/pmap.h 1.79 of src/sys/vm/vm_extern.h 1.226 of src/sys/vm/vm_glue.c 1.390 of src/sys/vm/vm_map.c Requested by: marius Tested by: Peter Holm, marius (make universe and sparc64 runs) Approved by: re (kensmith) 2008-01-09T15:19:22Z Konstantin Belousov kib@FreeBSD.org 2008-01-09T15:19:22Z urn:sha1:c7ae2157cd66801b6a89f118ad8b09b6c71812f5 In the vm_map_stack(), check for the specified stack region wraparound. Approved by: re (kensmith)