From 4830bbbe8bf1c418c6e9169ed3e168e0ed88fae5 Mon Sep 17 00:00:00 2001
From: Sonic Build Admin <sonicbld@microsoft.com>
Date: Tue, 6 May 2025 16:13:17 +0000
Subject: [PATCH] Bump up /dev/shm size for Broadcom platforms to 512MB by
 default

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#### Why I did it

In the case of ASIC detection failures on Broadcom (or if the ASIC couldn't be detected in time), the `/dev/shm` partition in the syncd container will be only 64MB, which might cause issues if syncd/Broadcom SAI library needs more space than that.

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it

Since using a larger `/dev/shm` on its own doesn't cause any issues, bump up the default to 512MB. This should be enough for most platforms.

#### How to verify it

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---
 files/build_templates/docker_image_ctl.j2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/files/build_templates/docker_image_ctl.j2 b/files/build_templates/docker_image_ctl.j2
index c3a5f2048ae..79823566f5c 100644
--- a/files/build_templates/docker_image_ctl.j2
+++ b/files/build_templates/docker_image_ctl.j2
@@ -652,7 +652,7 @@ start() {
 {%- endif %}
 {%- if sonic_asic_platform == "broadcom" %}
 {%- if docker_container_name == "syncd" %}
-        --shm-size=${SYNCD_SHM_SIZE:-64m} \
+        --shm-size=${SYNCD_SHM_SIZE:-512m} \
         -v /var/run/docker-syncd$DEV:/var/run/sswsyncd \
 {%- endif %}
 {%- endif %}