Re: [Gumstix-users] [Bounty] $150 US/Euro/etc: Why Kernel Reports out-of-memory when mem usage is at 50%?

[AJ O. <coo...@gm...>]

I don't know, but none of the processes are using 50% of the memory.

In total they're using 50%.

I think I may have found the answer though:
http://www.hskupin.info/2010/06/17/how-to-fix-the-oom-killer-crashe-under-linux/
http://www.win.tue.nl/~aeb/linux/lk/lk-9.html#ss9.6

The kernel allows all processes to use 50% of RAM + Swap by default.
Gumstix ship without swap, but with the default setting in the kernel.

If this isn't the fix, the bounty is still open, I'll be testing in a few
minutes.

AJ ONeal


On Sat, Dec 18, 2010 at 6:31 PM, Pat Suwalski <pa...@su...> wrote:

> A user process is only allowed to use 50% of available physical memory,
> isn't it?
>
> --Pat
>
> On 10-12-18 08:16 PM, AJ ONeal wrote:
> > I've got htop up and I'm watching memory usage I was using a mere 80mb
> > of an available 160mb
> >
> > I keep getting segfaults over and over and over again.
> > I've gotten them from ffmpeg, ls, node. I've tried kernel 2.6.34 and
> 2.6.36.
> >
> > If you can give me the solution to how I get my system to give me the
> > full 160mb I deserve,
> > you'll get $150 that you deserve.
> >
> > I can do paypal, wire transfer, however you would like it in the
> > currency of your choice.
> >
> >
> > sh invoked oom-killer: gfp_mask=0xd0, order=2, oom_adj=0
> > [<c00385c8>] (unwind_backtrace+0x0/0xec) from [<c0095eec>]
> > (dump_header+0x3c/0x108)
> > [<c0095eec>] (dump_header+0x3c/0x108) from [<c0095ff4>]
> > (oom_kill_process+0x3c/0xf8)
> > [<c0095ff4>] (oom_kill_process+0x3c/0xf8) from [<c00964cc>]
> > (__out_of_memory+0x15c/0x180)
> > [<c00964cc>] (__out_of_memory+0x15c/0x180) from [<c009657c>]
> > (out_of_memory+0x8c/0xc0)
> > [<c009657c>] (out_of_memory+0x8c/0xc0) from [<c00991fc>]
> > (__alloc_pages_nodemask+0x430/0x530)
> > [<c00991fc>] (__alloc_pages_nodemask+0x430/0x530) from [<c0099310>]
> > (__get_free_pages+0x14/0x44)
> > [<c0099310>] (__get_free_pages+0x14/0x44) from [<c003ba88>]
> > (get_pgd_slow+0x18/0xe8)
> > [<c003ba88>] (get_pgd_slow+0x18/0xe8) from [<c0058c7c>]
> (mm_init+0x94/0xd4)
> > [<c0058c7c>] (mm_init+0x94/0xd4) from [<c00591fc>] (dup_mm+0x60/0x3b0)
> > [<c00591fc>] (dup_mm+0x60/0x3b0) from [<c0059c10>]
> > (copy_process+0x624/0xba8)
> > [<c0059c10>] (copy_process+0x624/0xba8) from [<c005a2ec>]
> > (do_fork+0x158/0x310)
> > [<c005a2ec>] (do_fork+0x158/0x310) from [<c0033f00>]
> > (ret_fast_syscall+0x0/0x30)
> > Mem-info:
> > Normal per-cpu:
> > CPU    0: hi:   42, btch:   7 usd:   0
> > active_anon:17334 inactive_anon:17901 isolated_anon:20
> >   active_file:14 inactive_file:11 isolated_file:13
> >   unevictable:0 dirty:0 writeback:0 unstable:0
> >   free:4016 slab_reclaimable:603 slab_unreclaimable:882
> >   mapped:199 shmem:18044 pagetables:180 bounce:0
> > Normal free:16064kB min:1688kB low:2108kB high:2532kB
> > active_anon:69336kB inactive_anon:71604kB aco
> > lowmem_reserve[]: 0 0
> > Normal: 1982*4kB 981*8kB 8*16kB 1*32kB 2*64kB 0*128kB 0*256kB 0*512kB
> > 0*1024kB 0*2048kB 0*4096kB =B
> > 18079 total pagecache pages
> > 0 pages in swap cache
> > Swap cache stats: add 0, delete 0, find 0/0
> > Free swap  = 0kB
> > Total swap = 0kB
> > 45056 pages of RAM
> > 4207 free pages
> > 2863 reserved pages
> > 1485 slab pages
> > 428 pages shared
> > 0 pages swap cached
> > Out of memory: kill process 841 (hald) score 3814 or a child
> > Killed process 909 (hald-runner) vsz:3264kB, anon-rss:160kB, file-rss:0kB
> >
> >
> > AJ ONeal
> >
> >
> >
> >
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