commit 3b239a1805c831bd333b4a8adbd4e88cf9d4f926
author Ian Barkley-Yeung <iby@chromium.org> Wed Mar 16 14:26:10 2022 -0700
committer Commit Bot <commit-bot@chromium.org> Thu Mar 17 11:52:56 2022 +0000
tree 3688aaabbcabbfc8abfe4460359fad1aa0db690a
parent 043c903819ad960bc359d8c4c8e83d20f656ffee

crash: Add vmlog info to Chrome crashes

Add a tail of vmlog.LATEST to Chrome crashes. This will help us diagnose
browser hangs. In particular, it should help us diagnose "we're out of
memory and being forced to swap a lot" vs. "something wrong with the
swapper / file system and is causing a hang"

BUG=b:214076950
TEST=Sent Chrome a SEGV, got https://crash-staging.corp.google.com/browse?q=reportid=%2719de4e2e980f59ef%27#7

Change-Id: I4828b1e196439d6437ccdb8c2be667d8b54360c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/3529855
Commit-Queue: Ian Barkley-Yeung <iby@chromium.org>
Tested-by: Ian Barkley-Yeung <iby@chromium.org>
Auto-Submit: Ian Barkley-Yeung <iby@chromium.org>
Reviewed-by: Brian Geffon <bgeffon@chromium.org>
Reviewed-by: Miriam Zimmerman <mutexlox@chromium.org>
Commit-Queue: Miriam Zimmerman <mutexlox@chromium.org>

crash-reporter/crash_reporter_logs.conf

diff --git a/crash-reporter/crash_reporter_logs.conf b/crash-reporter/crash_reporter_logs.conf
index aa9e74c..e9539e9 100644
--- a/crash-reporter/crash_reporter_logs.conf
+++ b/crash-reporter/crash_reporter_logs.conf
@@ -55,6 +55,10 @@
   done; \
   echo "===session_manager (tail)==="; \
   awk '$3 ~ "^session_manager\\[" { print }' /var/log/messages | tail -20; \
+  echo EOF; \
+  echo ; \
+  echo "===vmlog.LATEST (tail)==="; \
+  tail -200 /var/log/vmlog/vmlog.LATEST; \
   echo EOF
 
 # Just grab /home/chronos/user/lacros/lacros.log