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Issue metadata

Status: WontFix
Owner:
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug

Blocking:
issue 422516



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[IO Thread hang] QuicChromiumClientSession::NotifyFactoryOfSessionClosed

Project Member Reported by gab@chromium.org, Apr 5 2018

Issue description

See trace attached, that task runs for 19 seconds on the IO thread.

It was posted from QuicChromiumClientSession::NotifyFactoryOfSessionClosedLater.

It invokes QuicStreamFactory::OnSessionGoingAway() which is potentially slow if any of the data structures involved are huge (e.g. session_aliases_, session_aliases_[session], gone_away_aliases_, active_sessions_.erase(session_key)) ?


Reported by hbos @ https://bugs.chromium.org/p/chromium/issues/detail?id=817314#c82
 
trace_chromefreeze.json.gz
7.1 MB Download
Owner: rch@chromium.org
Hi Ryan,
  Hope you are doing well. Really sorry to punt this to you (hope you don't mind).

Thanks
Raman

Comment 2 by hbos@chromium.org, Apr 6 2018

Labels: -Pri-2 -M-68 ReleaseBlock-Stable FoundIn-65 OS-Linux Pri-1
Status: Assigned (was: Untriaged)
Every few seconds the browser freezes for 20 seconds. This is in 65 stable. It's so bad Chrome is barely usable and I've had to switch to another browser to do basic things like reading email.

I'm upping the priority and making it a ReleaseBlocker to reflect the severity until we figure out how widespread this is.

Comment 3 by hbos@chromium.org, Apr 6 2018

Hmm, I'm back to using Chrome today (same version as last time, 65.0.3325.181) and currently not experiencing any freeze issues. I'll check back if I have problems.
Labels: Needs-Feedback
 hbos@ can you please let us know if you are still able to reproduce the issue. 

Comment 5 by hbos@chromium.org, Apr 12 2018

I am not able to reproduce anymore. Note that I am still on the same version, 65.0.3325.181.

Comment 6 by gov...@chromium.org, Apr 25 2018

M67 Stable promotion is coming soon. Your bug is labelled as Stable ReleaseBlock, pls make sure to land the fix and request a merge into the release branch ASAP. Thank you.


*** Bulk Edit ***
M67 Stable promotion is coming soon. Your bug is labelled as Stable ReleaseBlock, pls make sure to land the fix and request a merge into the release branch ASAP. 

If fix is already merged to M67 and nothing else is pending, pls mark the bug as fixed. Thank you.
*** Bulk Edit ***
M67 Stable promotion is coming VERY soon. Your bug is labelled as Stable ReleaseBlock, pls make sure to land the fix and request a merge into the release branch ASAP. 

If fix is already merged to M67 and nothing else is pending, pls mark the bug as fixed. Thank you.
Labels: -Pri-1 -ReleaseBlock-Stable Pri-3
Downgrade the priority of this issue and removing ReleaseBlock-Stable since this bug is not reproducible by the reporter and we didn't receive any other similar reports. 

Feel free to retag when you're able to reproduce the issue with more details. 
Status: WontFix (was: Assigned)
Network bug triager here: closing the issue due to lack of activity. 

Please file new bugs if the issue repros.

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