Package: base
Severity: normal

Dear Maintainer,

Problem described here concern Debian Linux on Sun X4140 servers only.
I submit bugreport, because I have 2 of them rebooting on almost every boot and 
don't know how to dig the situation. I wish to help if got some instructions.

>From this side this works like that:

Sun X4140 with Opteron processors, Xen and bridge-utils, serial console. Also 
this server known to have Nvidia NCP55 chipset with forcedeth driver. If I boot 
it up - It reboot on words

Bridge firewalling registered.

The only way to pass this point - unplug network in boot time and plug it back 
after. Additional information about this behaviour:
1. Yesterday server was working fine. After configuring virtual machines and 
enlarging memory from 8 to 20 Gb it keeps rebooting every time. Same was for 
other one.
2. Installing debian 8.5.0 via PXE I got same reboots during kernel loading. 
Current debian installation succeeded.
3. Reboot happens even booting without hypervisor kernel also.
4. Other linuses work well - using these servers with OEL 6 and RHEL 6,7, all 
with forcedeth drivers.
5. There are several servers rebooting (debian 7 and 8), so this is not a 
hardware issue.
6. Firewall is off and i am confused about "Bridge firewalling registered".

-- System Information:
Debian Release: 8.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

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