Re: probleme ram :: cind dmidecode difera de free

2016-10-26 18:00 GMT+01:00 Adrian Sevcenco <[email protected]>:

> Salut! Am intilnit o problema ciudata si nu stiu cum sa o procesez :
>
> [root@compute-0-0 ~]# dmidecode -t memory | grep -E 'Size.*MB'
>         Size: 1024 MB
>         Size: 1024 MB
>         Size: 1024 MB
>         Size: 1024 MB
>
> [root@compute-0-0 ~]# free -m
>              total       used       free     shared    buffers     cached
> Mem:          7998       1437       6560          0        396        722
> -/+ buffers/cache:        318       7679
> Swap:         8191          0       8191
>
> [root@compute-0-0 ~]# hwloc-ls --no-caches
> Machine (7998MB)
> .....
>
> [root@compute-0-0 ~]# numastat -m | grep MemTotal
> MemTotal 8190.93 8190.93
>
> e clar ca memoria e busita .. iar joburi pe masina imi crapa cu
> std::bad_alloc ..
> dar de ce, inclusiv dupa reboot free -m imi arata 8 gb???
> daca ar arata marimea ce functioneaza as putea sa fac ceva, ar functiona
> swapul,
> si as reduce joburile pe masina ...
>
> Ceva idei in legatura cu conditiile in care pot aparea astfel de
> discrepante?
>

dmesg | grep 0.000000

(cam tot legat de linux care detecteaza memoria ar fi acolo, daca nu,
adauga mai mult, pina la, inclusiv "Memory:").

pune ce iese intr-un pastebin sa vedem si noi.

in cel mai rau caz poti "rezolva" cu mem=

mem=nn[KMG] [KNL,BOOT] Force usage of a specific amount of memory
Amount of memory to be used when the kernel is not able
to see the whole system memory or for test.
[X86] Work as limiting max address. Use together
with memmap= to avoid physical address space collisions.
Without memmap= PCI devices could be placed at addresses
belonging to unused RAM.

sau mai bine (tocmai am aflat si eu ca este, citind documentatia)

memtest= [KNL,X86,ARM] Enable memtest
Format: <integer>
default : 0 <disable>
Specifies the number of memtest passes to be
performed. Each pass selects another test
pattern from a given set of patterns. Memtest
fills the memory with this pattern, validates
memory contents and reserves bad memory
regions that are detected.

memtest=2 ar trebui sa se miste repede la boot.

Spune-ne si noua ce iese


>
> Multumesc frumos!
> Adrian
>
>
>
>
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