Konstantin Belousov d3b9828d0d The vmtotal sysctl handler marks active vm objects to calculate ...

statistics.  Marking is done by setting the OBJ_ACTIVE flag.  The
flags change is locked, but the problem is that many parts of system
assume that vm object initialization ensures that no other code could
change the object, and thus performed lockless.  The end result is
corrupted flags in vm objects, most visible is spurious OBJ_DEAD flag,
causing random hangs.

Avoid the active object marking, instead provide equally inexact but
immutable is_object_alive() definition for the object mapped state.

Avoid iterating over the processes mappings altogether by using
arguably improved definition of the paging thread as one which sleeps
on the v_free_count.

PR:	204764
Diagnosed by:	pho
Tested by:	pho (previous version)
Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Approved by:	re (gjb)

2016-06-21 17:49:33 +00:00

..

_vm_radix.h

…

default_pager.c

A change to KPI of vm_pager_get_pages() and underlying VOP_GETPAGES().

2015-12-16 21:30:45 +00:00

device_pager.c

Avoid duplicated calls to pmap_page_get_memattr().

2016-05-01 17:48:43 +00:00

memguard.c

Include sys/_task.h into uma_int.h, so that taskqueue.h isn't a

2016-02-09 20:22:35 +00:00

memguard.h

…

phys_pager.c

sys: use our roundup2/rounddown2() macros when param.h is available.

2016-04-21 19:57:40 +00:00

pmap.h

Properly sort the function declarations added in r286296

2015-08-05 10:48:32 +00:00

redzone.c

…

redzone.h

…

sg_pager.c

Plug a vm_page leak introduced in r292373.

2016-02-05 19:35:53 +00:00

swap_pager.c

Fix inconsistent locking of the swap pager named objects list.

2016-06-13 03:42:46 +00:00

swap_pager.h

…

uma_core.c

Fix memguard(9) in kernels with INVARIANTS enabled.

2016-06-01 22:31:35 +00:00

uma_dbg.c

Fix memguard(9) in kernels with INVARIANTS enabled.

2016-06-01 22:31:35 +00:00

uma_dbg.h

Move uma_dbg_alloc() and uma_dbg_free() into uma_core.c, which allows

2016-02-03 22:02:36 +00:00

uma_int.h

sys/vm: minor spelling fixes in comments.

2016-05-02 20:16:29 +00:00

uma.h

Remove UMA_ZONE_REFCNT feature, now unused.

2016-03-01 00:33:32 +00:00

vm_domain.c

Move vm_domain_rr_selectdomain() under #ifdef VM_NUMA_ALLOC.

2016-05-10 22:25:55 +00:00

vm_domain.h

Add an initial NUMA affinity/policy configuration for threads and processes.

2015-07-11 15:21:37 +00:00

vm_extern.h

Various cleanups to the main function for AIO kernel processes:

2016-01-19 21:37:51 +00:00

vm_fault.c

Use vm_page_replace_checked() instead of vm_page_rename() for implementing

2016-05-27 06:05:12 +00:00

vm_glue.c

Remove false claim. Giant is dropped by mi_startup() before passing

2016-05-22 19:25:53 +00:00

vm_init.c

Parallelize the buffer cache and rewrite getnewbuf(). This results in a

2015-10-14 02:10:07 +00:00

vm_kern.c

Introduce a new mechanism for relocating virtual pages to a new physical

2015-12-19 18:42:50 +00:00

vm_kern.h

…

vm_map.c

sys/vm: minor spelling fixes in comments.

2016-05-02 20:16:29 +00:00

vm_map.h

Do not pretend that vm_fault(9) supports unwiring the address. Rename

2015-07-30 18:28:34 +00:00

vm_meter.c

The vmtotal sysctl handler marks active vm objects to calculate

2016-06-21 17:49:33 +00:00

vm_mmap.c

Add a local variable initialization needed in the OBJT_DEFAULT case.

2015-07-05 22:26:19 +00:00

vm_object.c

Do not leak the vm object lock when swap reservation failed, in

2016-05-29 15:46:19 +00:00

vm_object.h

The vmtotal sysctl handler marks active vm objects to calculate

2016-06-21 17:49:33 +00:00

vm_page.c

Reset the page busy lock state after failing to insert into the object.

2016-06-02 17:11:24 +00:00

vm_page.h

vm/vm_page.h: Fix trivial '-Wpointer-sign' warning

2016-05-19 17:54:14 +00:00

vm_pageout.c

The flag "vm_pages_needed" has long served two distinct purposes: (1) to

2016-05-27 19:15:45 +00:00

vm_pageout.h

The flag "vm_pages_needed" has long served two distinct purposes: (1) to

2016-05-27 19:15:45 +00:00

vm_pager.c

Remove slightly used const values that can be replaced with nitems().

2016-04-21 15:38:28 +00:00

vm_pager.h

A change to KPI of vm_pager_get_pages() and underlying VOP_GETPAGES().

2015-12-16 21:30:45 +00:00

vm_param.h

Remove the v_cache_min and v_cache_max sysctls. They are unused and have

2015-09-11 03:00:20 +00:00

vm_phys.c

sys: use our roundup2/rounddown2() macros when param.h is available.

2016-04-21 19:57:40 +00:00

vm_phys.h

Add more fine-grained kernel options for NUMA support.

2016-04-09 13:58:04 +00:00

vm_radix.c

Cleanup redundant parenthesis from existing howmany()/roundup() macro uses.

2016-04-22 16:57:42 +00:00

vm_radix.h

…

vm_reserv.c

Introduce a new mechanism for relocating virtual pages to a new physical

2015-12-19 18:42:50 +00:00

vm_reserv.h

Introduce a new mechanism for relocating virtual pages to a new physical

2015-12-19 18:42:50 +00:00

vm_unix.c

Implement lockless resource limits.

2015-06-10 10:48:12 +00:00

vm_zeroidle.c

…

vm.h

Add new bus methods for mapping resources.

2016-05-20 17:57:47 +00:00

vnode_pager.c

Add implementation of robust mutexes, hopefully close enough to the

2016-05-17 09:56:22 +00:00

vnode_pager.h

A change to KPI of vm_pager_get_pages() and underlying VOP_GETPAGES().

2015-12-16 21:30:45 +00:00