I am repeatedly seeing errors like

######################
2018/07/31 03:46:33 [emerg] 2854560#2854560: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
2018/07/31 03:54:09 [emerg] 2890190#2890190: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
2018/07/31 04:08:36 [emerg] 2939230#2939230: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
2018/07/31 04:24:48 [emerg] 2992650#2992650: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
2018/07/31 04:42:09 [emerg] 3053092#3053092: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
2018/07/31 04:42:17 [emerg] 3053335#3053335: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
2018/07/31 04:42:28 [emerg] 3053937#3053937: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
2018/07/31 04:47:54 [emerg] 3070638#3070638: posix_memalign(16, 16384)
failed (12: Cannot allocate memory)
####################

on a few servers

The servers have enough memory free and the swap usage is 0, yet somehow
the kernel denies the posix_memalign with ENOMEM ( this is what I think is
happening!)

The numbers requested are always 16, 16k . This makes me suspicious

I have no setting in nginx.conf that reference a 16k

Is there any chance of finding out what requests this and why this is not
fulfilled


--
*Anoop P Alias*
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