https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216905
Bug ID: 216905
Summary: proces hung in STOP, CPU 100% system, thread in
PCPU_GET(cpuid)
Product: Base System
Version: 10.3-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: freebsd-b...@freebsd.org
Reporter: erohin.konstantin...@yandex.ru
CC: freebsd-amd64@FreeBSD.org
CC: freebsd-amd64@FreeBSD.org
Created attachment 179745
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=179745&action=edit
kgdb inspect proc, threads
10.3-RELEASE-p7, our jailed process named `udpd` hangs in STOP state.
According to top it uses 100% CPU:
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
25041 10001 2 20 0 30061M 21536M STOP 26 2783.5 100.00% udpd
CPU id 26 is 100% system time.
gdb/lldb/truss cant attach to process.
Process has two threads^
ps HO wchan,nwchan,ppid -p 25041
PID WCHAN NWCHAN PPID TT STAT TIME COMMAND
25041 - - 1 - RJ 165992:29.29 bin/udpd
--config=etc/transport.cfg --subcfg=etc/transport --daemonize
--pid-file=/usr/local/ksn/var/ksn.udpd.pid --trace-file=log/udpd_trace.txt
--trace-level=500
25041 - - 1 - TJ 1:36.89 bin/udpd
--config=etc/transport.cfg --subcfg=etc/transport --daemonize
--pid-file=/usr/local/ksn/var/ksn.udpd.pid --trace-file=log/udpd_trace.txt
--trace-level=500
Collected some info about threand and proc via kgdb.
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