Date: Tue, 16 Mar 2021 10:15:09 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 254333] sysctl net.inet.tcp.hostcache.list hangs Message-ID: <bug-254333-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254333 Bug ID: 254333 Summary: sysctl net.inet.tcp.hostcache.list hangs Product: Base System Version: 11.4-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: maxim.shalomikhin@kaspersky.com I'm running 'sysctl net.inet.tcp.hostcache.list' from operator's crontab every 5 minutes for gathering tcp statistics. After 3 or 4 months of work sysctl hangs. Kill (and kill -9) doesn't help. Running one more "sysctl net.inet.tcp.hostcache.list" command gives the same result - it hangs forever with no output. Other "sysctl SOMETHING" commands works fine. # ps ax| grep sysctl operator 787 0.0 0.0 4236 1004 - D Tue16 2:42.96 /sbin/sysctl net.inet.tcp.hostcache.list operator 1908 0.0 0.0 4236 1004 - D Mon02 2:45.74 /sbin/sysctl net.inet.tcp.hostcache.list operator 2358 0.0 0.0 4236 1004 - D Wed10 1:33.93 /sbin/sysctl net.inet.tcp.hostcache.list operator 3270 0.0 0.0 4236 1004 - D Sun16 2:47.22 /sbin/sysctl net.inet.tcp.hostcache.list After rebot 'sysctl net.inet.tcp.hostcache.list' works again as expected for another 3 or 4 months. The issue is reproducing on about 60 hevy loaded http(s) servers with different hw specs. -- You are receiving this mail because: You are the assignee for the bug.help
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