On 2020-08-04 03:49, Qian Cai wrote:
Well, each iteration will mmap/munmap, so there should be no leaking.
https://gitlab.com/cailca/linux-mm/-/blob/master/random.c#L376
It also seem to me madvise(MADV_SOFT_OFFLINE) does start to fragment
memory
somehow, because after this "madvise: Cannot allocate memory" happened,
I
immediately checked /proc/meminfo and then found no hugepage usage at
all.
Unfortunately I will be off for a week, but out of curiosity, could you
try out with below tree [1] and see if you still see those issues?
Thanks for your time
[1] https://github.com/leberus/linux-mm-1/tree/hwpoison
