Recent update has rngd running @100% on all cores

Raspberry Pi 2

Recent update has rngd running @100% on all cores

Postby graysky » Thu Jul 11, 2019 6:41 pm

Is anyone else experiencing this? CPU usage per top is >390% on a RPi3B+. Output:
$this->bbcode_second_pass_code('', '# systemctl status rngd
● rngd.service - Hardware RNG Entropy Gatherer Daemon
Loaded: loaded (/usr/lib/systemd/system/rngd.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2019-07-11 14:38:45 EDT; 23s ago
Main PID: 493 (rngd)
Tasks: 5 (limit: 1610)
Memory: 1.2M
CGroup: /system.slice/rngd.service
└─493 /usr/bin/rngd -f

Jul 11 14:38:45 submyth systemd[1]: Started Hardware RNG Entropy Gatherer Daemon.
Jul 11 14:38:45 submyth rngd[493]: Initalizing available sources
Jul 11 14:38:45 submyth rngd[493]: Initalizing entropy source hwrng
Jul 11 14:38:56 submyth rngd[493]: Initalizing AES buffer
Jul 11 14:38:56 submyth rngd[493]: Enabling JITTER rng support
Jul 11 14:38:56 submyth rngd[493]: Initalizing entropy source jitter
Jul 11 14:38:56 submyth rngd[493]: PKCS11 Engine /usr/lib64/opensc-pkcs11.so Error: No such file or directory
Jul 11 14:38:56 submyth rngd[493]: Failed to init entropy source pkcs11
')

I see that opensc-pkcs11.so is provided by opensc which I installed. Upon restarting rngd the CPU usage is still maxed out, the wanring is simply not shown.

$this->bbcode_second_pass_code('', '● rngd.service - Hardware RNG Entropy Gatherer Daemon
Loaded: loaded (/usr/lib/systemd/system/rngd.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2019-07-11 14:40:41 EDT; 2s ago
Main PID: 586 (rngd)
Tasks: 5 (limit: 1610)
Memory: 1.0M
CGroup: /system.slice/rngd.service
└─586 /usr/bin/rngd -f

Jul 11 14:40:41 submyth systemd[1]: Started Hardware RNG Entropy Gatherer Daemon.
Jul 11 14:40:41 submyth rngd[586]: Initalizing available sources
Jul 11 14:40:41 submyth rngd[586]: Initalizing entropy source hwrng
')
graysky
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