[Bug malloc/21273] insufficient memory with more then 10 GB free memory

["dieter.ferdinand at gmx dot de" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=21273

--- Comment #9 from dieter ferdinand <dieter.ferdinand at gmx dot de> ---
hello,
the problem is, that chrome/chromium starts a new process for every task, so it
is impossible to trace all.

i can log the memory-usage of the system and the error-message or can try to
check how many memory i can allocate with memtester.

i don't know, how i can get the information which you want.

this is not one process which makes problems. the problem is tat i get out of
memory with more then 10 gb of availabe memory or if some process like chromium
allocate much memory in a very short time!

at the moment, i have a virtual size for every chrome-process like this:
20876 dieter    20   0  807840 226216  84600 S   0,7  1,4  18:13.81 chrome     
18853 dieter    20   0 1458940 186224  70656 S   0,0  1,1 173:52.01 chrome     
21987 dieter    20   0  710472 179192  22340 S   0,3  1,1  41:39.29 chrome     
20496 dieter    20   0  757240 128556  28204 S   0,0  0,8  14:13.67 chrome     
21515 dieter    20   0  561164 120440  76568 S   0,0  0,7   1:07.86 chrome     
12950 root      20   0 2673928  89100   7792 R  98,7  0,5   1858:49 TMPGEnc.exe
 5357 dieter    20   0  674432  76756  16264 S   0,0  0,5   7:19.20 chrome     
22053 dieter    20   0  875196  56288  19956 S   1,3  0,3 145:04.11 chrome     
20968 dieter    20   0  632740  55836  27860 S   0,0  0,3   5:42.53 chrome     
18223 dieter    20   0  691952  55660  30648 S   0,0  0,3 127:21.16 chrome     
 5468 dieter    20   0  735424  55592  13964 S   0,3  0,3  78:08.28 chrome     
i think, the virtual size of chrome exceed 30GB

and this is the memory-status:
KiB Mem : 16393256 total,   576408 free,  2220832 used, 13596016 buff/cache
KiB Swap:  8380412 total,  4749532 free,  3630880 used. 13911028 avail Mem 

a tool, which i get from sombody report this for chrome:
  1.0 GiB +  99.1 MiB =   1.1 GiB       chrome (67)

and pmap -X calculate for chrome 37 090 672 bytes.

and pmap -X for all:
Size  Rss  Pss Referenced Anonymous ShmemPmdMapped Shared_Hugetlb
Private_Hugetlb Swap SwapPss Locked Mapping
76480008 3511412 1884084    3220560   1706164              0              0    
          0 4837468 2937521   2723 KB 

but what is the REAL memory-usage? the best value for total memory-usage (1.8
GiB) comes from the ps_mem-python-script.

goodby

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