tree 10d3c992346b69236eb1356bfd381cc5e4f49584
parent f2df1e3c34ceb2225d0df5c9ec92d5dc9e9ba919
author Joel Sing <joel@sing.id.au> 1557215809 +1000
committer Joel Sing <joel@sing.id.au> 1614749601 +0000

syscall: implement rawVforkSyscall for remaining linux platforms

This allows the use of CLONE_VFORK and CLONE_VM for fork/exec, preventing
'fork/exec ...: cannot allocate memory' failures from occuring when attempting
to execute commands from a Go process that has a large memory footprint.
Additionally, this should reduce the latency of fork/exec on these platforms.

Fixes #31936

Change-Id: I4e28cf0763173145cacaa5340680dca9ff449305
Reviewed-on: https://go-review.googlesource.com/c/go/+/295849
Trust: Joel Sing <joel@sing.id.au>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Zhang <cherryyz@google.com>