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https://bro-tracker.atlassian.net/browse/BIT-1306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=20261#comment-20261
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Robin Sommer commented on BIT-1306:
-----------------------------------
Thanks, Keith! Closing ticket.
> bro process would get stuck/freeze with myricom drivers
> -------------------------------------------------------
>
> Key: BIT-1306
> URL: https://bro-tracker.atlassian.net/browse/BIT-1306
> Project: Bro Issue Tracker
> Issue Type: Problem
> Components: Bro
> Affects Versions: git/master
> Environment: OS: FreeBSD 9.3-RELEASE-p5 OS
> bro version 2.3-328
> git log -1 --format="%H"
> 379593c7fded0f9791ae71a52dd78a4c9d5a2c1f
> Reporter: Aashish Sharma
> Assignee: Robin Sommer
> Labels: bro-git, myricom
> Fix For: 2.4
>
>
> When I stop bro (in cluster mode), one of the bro worker process (random)
> would get stuck and wouldn't shutdown, stop or even be killed using kill -s
> 9.
> System has to be ultimately rebooted to remove stuck bro process.
> On running myri_start_stop I see:
> # /usr/local/opt/snf/sbin/myri_start_stop stop
> Removing myri_snf.ko
> kldunload: can't unload file: Device busy
> It appears that the myri_snf.ko driver cannot be unloaded because of the
> stuck bro process. That process still has an open descriptor on the Sniffer
> device/driver and bro process freezes
> More details:
> The bro process is stuck in RNE state
> R Marks a runnable process.
> N The process has reduced CPU scheduling priority (see setpriority(2)).
> E The process is trying to exit.
> Here is an example:
> ### stuck process:
> [bro@01 ~]$ ps auxwww | fgrep 1616
> bro 1616 100.0 0.0 758040 60480 ?? RNE 2:57PM 53:50.04
> /usr/local/bro-git/bin/bro -i myri0 -U .status -p broctl -p broctl-live -p
> local -p worker-1-1 mgr.bro broctl base/frameworks/cluster local-worker.bro
> broctl/auto
> ####when checking for process in proc:
> [bro@c ~]$ ls -l /proc/1616
> ls: /proc/1616: No such file or directory
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