mirrors/mongodb
mirrors/mongodb
0
0
Fork 0
mirror of https://github.com/mongodb/mongo.git synced 2024-11-24 00:17:37 +01:00
Code Issues Releases Activity

SERVER-90036 Set glibc.pthread.rseq on evergreen variants with glibc version >= 2.34 (#21713)

Browse Source 
GitOrigin-RevId: 376c345d34577098b95aedbc9daa2a7b937497f4
This commit is contained in:
Zack Winter 2024-05-02 19:00:58 -07:00 committed by MongoDB Bot
parent 32ccfe3d0b
commit 1dde2576ec
2 changed files with 26 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
evergreen/prelude.sh
View File

@ -12,6 +12,7 @@ evergreen_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" > /dev/null 2>&1 && pwd)"
. "$evergreen_dir/prelude_venv.sh"
. "$evergreen_dir/prelude_db_contrib_tool.sh"
. "$evergreen_dir/prelude_mongo_task_generator.sh"
. "$evergreen_dir/prelude_system_env_variables.sh"
expansions_yaml="$evergreen_dir/../../expansions.yml"
expansions_default_yaml="$evergreen_dir/../etc/expansions.default.yml"

25
evergreen/prelude_system_env_variables.sh Executable file
View File

@ -0,0 +1,25 @@
#!/bin/bash
get_glibc_version() {
getconf GNU_LIBC_VERSION | cut -d ' ' -f 2
}
# Systems with glibc 2.34 or newer register custom rseq ABI
# behavior that is incompatible with the new TCMalloc, and will cause
# TCMalloc's rseq functionality to break and fall back to the per-thread
# cache behavior. Systems with an older glibc version will successfully
# use TCMalloc's per-CPU caches. We must ensure this environment variable is
# set on problematic systems.
configure_glibc_pthread_req() {
if [[ "$OSTYPE" == "linux-gnu"* ]]; then
local ver="$(get_glibc_version)"
local major="$(echo $ver | cut -d '.' -f 1)"
local minor="$(echo $ver | cut -d '.' -f 2)"
if ((major > 2 || ((major == 2 && minor >= 34)))); then
export GLIBC_TUNABLES="glibc.pthread.rseq=0"
echo "glibc version >= 2.34 detected, setting env variable GLIBC_TUNABLES=glibc.pthread.rseq=0"
fi
fi
}
configure_glibc_pthread_req