d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
1b53f6c5a3
freebsd-nq/sys/vm
History
Konstantin Belousov 44ec2b63c5 The vmem callback to reclaim kmem arena address space on low or 
fragmented conditions currently just wakes up the pagedaemon.  The
kmem arena is significantly smaller then the total available physical
memory, which means that there are loads where kmem arena space could
be exhausted, while there is a lot of pages available still.  The
woken up pagedaemon sees vm_pages_needed != 0, verifies the condition
vm_paging_needed() which is false, clears the pass and returns back to
sleep, not calling neither uma_reclaim() nor lowmem handler.

To handle low kmem arena conditions, create additional pagedaemon
thread which calls uma_reclaim() directly.  The thread sleeps on the
dedicated channel and kmem_reclaim() wakes the thread in addition to
the pagedaemon.

Reported and tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-05-09 20:08:36 +00:00
..
_vm_radix.h On all the architectures, avoid to preallocate the physical memory 2013-08-09 11:28:55 +00:00
default_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
device_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
memguard.c Add comments about CTLFLAG_RDTUN vs. TUNABLE_INT_FETCH. 2015-03-26 05:20:18 +00:00
memguard.h Replace kernel virtual address space allocation with vmem. This provides 2013-08-07 06:21:20 +00:00
phys_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
pmap.h Change pmap_enter(9) interface to take flags parameter and superpage 2014-08-08 17:12:03 +00:00
redzone.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
redzone.h
sg_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
swap_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
swap_pager.h Do not map the swap i/o pbufs if the geom provider for the swap 2013-03-19 14:39:27 +00:00
uma_core.c The vmem callback to reclaim kmem arena address space on low or 2015-05-09 20:08:36 +00:00
uma_dbg.c - Add a per-zone lock for zones without kegs. 2013-06-20 19:08:12 +00:00
uma_dbg.h
uma_int.h Revert r281451. It causes a panic/hang early in boot for a number of 2015-04-24 17:03:53 +00:00
uma.h The vmem callback to reclaim kmem arena address space on low or 2015-05-09 20:08:36 +00:00
vm_extern.h Handle wiring failures in vm_map_wire() with the new functions 2014-08-02 16:10:24 +00:00
vm_fault.c Do not sleep waiting for the MAP_ENTRY_IN_TRANSITION state ending with 2015-04-28 08:20:23 +00:00
vm_glue.c Add kernel option KSTACK_USAGE_PROF to sample the stack depth on 2014-10-04 18:38:14 +00:00
vm_init.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
vm_kern.c Fix multiple incorrect SYSCTL arguments in the kernel: 2014-10-21 07:31:21 +00:00
vm_kern.h - Add a statically allocated memguard arena since it is needed very early 2013-08-13 22:40:43 +00:00
vm_map.c Add kern.racct.enable tunable and RACCT_DISABLED config option. 2015-04-29 10:23:02 +00:00
vm_map.h Oops. vm_map_simplify_entry() is used by mac_proc_vm_revoke_recurse(), so 2014-09-08 02:25:01 +00:00
vm_meter.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
vm_mmap.c Add kern.racct.enable tunable and RACCT_DISABLED config option. 2015-04-29 10:23:02 +00:00
vm_object.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
vm_object.h Introduce vm_object_color() and use it in mmap(2) to set the color of 2015-03-21 17:56:55 +00:00
vm_page.c Remove support for Xen PV domU kernels. Support for HVM domU kernels 2015-04-30 15:48:48 +00:00
vm_page.h Add flag VM_ALLOC_NOWAIT for vm_page_grab() that prevents sleeping and 2014-12-22 09:02:21 +00:00
vm_pageout.c The vmem callback to reclaim kmem arena address space on low or 2015-05-09 20:08:36 +00:00
vm_pageout.h
vm_pager.c o Enhance vm_pager_free_nonreq() function: 2015-03-17 19:19:19 +00:00
vm_pager.h o Enhance vm_pager_free_nonreq() function: 2015-03-17 19:19:19 +00:00
vm_param.h Rename global cnt to vm_cnt to avoid shadowing. 2014-03-22 10:26:09 +00:00
vm_phys.c Add initial memory locality cost awareness to the VM, and include 2015-05-08 00:56:56 +00:00
vm_phys.h oops - how'd i miss this. Sorry! 2015-05-08 06:02:23 +00:00
vm_radix.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
vm_radix.h Eliminate a redundant parameter to vm_radix_replace(). 2013-12-08 20:07:02 +00:00
vm_reserv.c Correct an off-by-one error in vm_reserv_reclaim_contig() that results in 2015-04-11 22:57:13 +00:00
vm_reserv.h Refactor vm_page_alloc()'s interactions with vm_reserv_alloc_page() and 2013-05-12 16:50:18 +00:00
vm_unix.c Add kern.racct.enable tunable and RACCT_DISABLED config option. 2015-04-29 10:23:02 +00:00
vm_zeroidle.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
vm.h rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST 2013-07-24 09:45:31 +00:00
vnode_pager.c Fix the KASSERT and improve wording in r282426. 2015-05-06 08:07:11 +00:00
vnode_pager.h Merge from projects/sendfile: 2014-11-23 12:01:52 +00:00