[haiku-bugs] [Haiku] #7976: Improve memory exhaustion process
- From: "kallisti5" <trac@xxxxxxxxxxxx>
- Date: Mon, 12 Sep 2011 16:59:42 -0000
#7976: Improve memory exhaustion process
---------------------------+------------------------------
Reporter: kallisti5 | Owner: axeld
Type: enhancement | Status: new
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/Development
Keywords: | Blocked By:
Blocking: | Has a Patch: 0
Platform: All |
---------------------------+------------------------------
This may be invalid, if so feel free to mark it as such.
During a critical physical memory exhaustion, it looks as though we don't
take any steps to mitigate the situation such as killing top memory
consumers etc.
While the argument that killing processes may lose data may exist... if
the system is seconds away from crashing then killing one top consumer may
be better then losing everything.
Here is an example of everything running a-muck in VirtualBox when 512 MB
memory is fully consumed momentarily...
{{{
KERN: slab memory manager: created area 0x8a801000 (4927)
KERN: slab memory manager: created area 0x8b001000 (4938)
KERN: low resource memory: normal -> note
KERN: low resource memory: note -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> note
KERN: low resource memory: note -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> note
KERN: low resource memory: note -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: 0x840157b0->VMAnonymousCache::_Commit(423034880): Failed to reserve
131072 bytes of RAM
KERN: vm_soft_fault: va 0x0 not covered by area in address space
KERN: vm_page_fault: vm_soft_fault returned error 'Bad address' on fault
at 0x4, ip 0x20c325, write 1, user 1, thread 0x101
KERN: vm_page_fault: thread "jam" (257) in team "jam" (257) tried to write
address 0x4, ip 0x20c325 ("jam_seg0ro" +0xc325)
KERN: low resource memory: critical -> warning
KERN: debug_server: Thread 257 entered the debugger: Segment violation
KERN: low resource memory: warning -> critical
KERN: 0x80fe75b0->VMAnonymousCache::_Commit(122880): Failed to reserve
122880 bytes of RAM
KERN: 0x80fe75b0->VMAnonymousCache::_Commit(98304): Failed to reserve
98304 bytes of RAM
KERN: 0x838ca008->VMAnonymousCache::_Commit(393216): Failed to reserve
131072 bytes of RAM
KERN: vm_soft_fault: va 0x2000 not covered by area in address space
KERN: vm_page_fault: vm_soft_fault returned error 'Bad address' on fault
at 0x2000, ip 0x2b0fee, write 1, user 1, thread 0x119
KERN: vm_page_fault: thread "team 257 handler" (281) in team
"debug_server" (62) tried to write address 0x2000, ip 0x2b0fee
("libroot.so_seg0ro" +0xa7fee)
KERN: 0x80fe75b0->VMAnonymousCache::Fault(): Failed to reserve 4096 bytes
of RAM.
KERN: vm_page_fault: vm_soft_fault returned error 'Out of memory' on fault
at 0x700c0f54, ip 0x278a9d, write 1, user 1, thread 0x11b
KERN: vm_page_fault: thread "team 62 handler" (283) in team "debug_server"
(62) tried to write address 0x700c0f54, ip 0x278a9d ("libroot.so_seg0ro"
+0x6fa9d)
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: 0x840097a8->VMAnonymousCache::_Commit(2752512): Failed to reserve
131072 bytes of RAM
KERN: vm_soft_fault: va 0x2000 not covered by area in address space
KERN: vm_page_fault: vm_soft_fault returned error 'Bad address' on fault
at 0x2000, ip 0x805fee, write 1, user 1, thread 0xe5
KERN: vm_page_fault: thread "w>Terminal 1: haiku: jam" (229) in team
"Terminal" (221) tried to write address 0x2000, ip 0x805fee
("libroot.so_seg0ro" +0xa7fee)
KERN: vm_soft_fault: va 0x4000 not covered by area in address space
KERN: vm_page_fault: vm_soft_fault returned error 'Bad address' on fault
at 0x4000, ip 0x2b0fee, write 1, user 1, thread 0x44
KERN: vm_page_fault: thread "kernel listener" (68) in team "debug_server"
(62) tried to write address 0x4000, ip 0x2b0fee ("libroot.so_seg0ro"
+0xa7fee)
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: 0x83c4c6e8->VMAnonymousCache::_Commit(28672): Failed to reserve
28672 bytes of RAM
KERN: runtime_loader: /boot/system/lib/libroot.so: Could not map image:
Out of memory
KERN: low resource memory: critical -> warning
KERN: 0x83c25dc0->VMAnonymousCache::_Commit(28672): Failed to reserve
28672 bytes of RAM
KERN: runtime_loader: /boot/system/lib/libroot.so: Could not map image:
Out of memory
KERN: low resource memory: warning -> critical
KERN: 0x83d19850->VMAnonymousCache::_Commit(65536): Failed to reserve
65536 bytes of RAM
KERN: 0x83d19350->VMAnonymousCache::_Commit(65536): Failed to reserve
65536 bytes of RAM
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: 0x83d19850->VMAnonymousCache::Fault(): Failed to reserve 4096 bytes
of RAM.
KERN: vm_page_fault: vm_soft_fault returned error 'Out of memory' on fault
at 0x780324c4, ip 0x631ec8, write 1, user 1, thread 0x13c
KERN: vm_page_fault: thread "w>TrackerWindow" (316) in team "Tracker"
(115) tried to write address 0x780324c4, ip 0x631ec8 ("libroot.so_seg0ro"
+0x2cec8)
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: low resource memory: warning -> critical
KERN: low resource memory: critical -> warning
KERN: 0x83d197b0->VMAnonymousCache::_Commit(8192): Failed to reserve 8192
bytes of RAM
Last message repeated 1 time
KERN: low resource memory: warning -> normal
}}}
At this point the system was unable to launch any further applications.
(see screenshot attached)
--
Ticket URL: <http://dev.haiku-os.org/ticket/7976>
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