Build Failure with ASAN Due to ENOMEM Error Despite Sufficient Memory

[Techinfo0708]

Hi,

We are trying to compile our workspace with the ASAN library, but during the compilation, one of the application requests around 3.2 GB of memory. Despite having enough available memory and swap space, we are encountering an "ENOMEM" error, causing the build to fail.

Below is the system snap shot
free -h
total used free shared buff/cache available
Mem: 31Gi 1.2Gi 3.1Gi 35Mi 27Gi 29Gi
Swap: 4.0Gi 2.3Gi 1.7Gi

This is the error log we traced through strace

openat(AT_FDCWD, "build/rcp/magnum/ppc4/program/rcpd/rcpd-v", O_RDONLY|O_LARGEFILE) = 7
mmap2(NULL, 3283073560, PROT_READ, MAP_SHARED, 7, 0) = -1 ENOMEM (Cannot allocate memory)
openat(AT_FDCWD, "/etc/localtime", O_RDONLY|O_CLOEXEC) = 8

Note: We are building it for powerpc 32-bit.