svn commit: r273872 - in head: etc/defaults etc/rc.d libexec/save-entropy share/examples/kld/random_adaptor sys/conf sys/dev/glxsb sys/dev/random sys/kern sys/modules sys/modules/padlock_rng sys/mo...

[Mark R V Murray]

Hi

I’m not sure what you are showing me here?

How yo you draw the “not enough entropy” conclusion?

The writing happens at shutdown; before you do the shutdown could you please do a ‘sysctl kern.random’ and post the result?

Do you have anything random-related in your rc.conf?

Could you please do a verbose boot on a kernel with “options RANDOM_DEBUG” set and send me the dmesg output from a failing box.

M

> On 1 Nov 2014, at 22:15, Alexander Kabaev <kabaev at gmail.com> wrote:
> 
> On Sat, 1 Nov 2014 14:57:02 -0700
> Adrian Chadd <adrian at freebsd.org> wrote:
> 
>> Hi,
>> 
>> I'm having a problem with this on MIPS router boards now:
>> 
>> db> bt 277
>> Tracing pid 277 tid 100034 td 0x80d7b9c0
>> cpu_switch+90 (?,?,?,?) ra ca90db6800000000 sp 0 sz 0
>> sched_switch+224 (?,?,?,?) ra ca90db6800000028 sp 0 sz 0
>> mi_switch+27c (?,?,?,?) ra ca90db9000000020 sp 0 sz 0
>> 80176358+1a0 (?,?,?,?) ra ca90dbb000000028 sp 0 sz 0
>> 801765dc+2d0 (?,?,?,?) ra ca90dbd800000030 sp 0 sz 0
>> sleepq_timedwait_sig+18 (?,?,?,?) ra ca90dc0800000020 sp 0 sz 0
>> _sleep+3b8 (?,?,?,803199e0) ra ca90dc2800000068 sp 0 sz 0
>> random_adaptor_read+114 (?,?,?,?) ra ca90dc9000000038 sp 0 sz 0
>> 800b1898+c0 (?,?,?,?) ra ca90dcc800000048 sp 0 sz 0
>> 80187450+6c (?,?,?,?) ra ca90dd1000000028 sp 0 sz 0
>> kern_readv+8c (?,?,?,?) ra ca90dd3800000050 sp 0 sz 0
>> sys_read+48 (?,?,?,?) ra ca90dd8800000040 sp 0 sz 0
>> trap+7f0 (?,?,?,?) ra ca90ddc8000000b8 sp 0 sz 0
>> MipsUserGenException+10c (?,?,?,408ed960) ra ca90de8000000000 sp 0 sz
>> 0
>> 
>> ... I've included "random" into the kernel rather than as a module
>> now.
>> 
>> This -looks- like it's not getting enough entropy now?
>> 
>> 
>> 
>> -adrian
>> 
> 
> Me too, on amd64 box. The machine gets hung for several minutes after
> 'writing entropy file' until random is unblocked. Anecdotally, banging
> on the keyboard trying to help the entropy gathering along seems to
> speed the process up.
> 
> -- 
> Alexander Kabaev

-- 
Mark R V Murray