Bug#883938: RFT: Candidate fix for boot failure of Debian 8.10 on various x86 systems

[Dr. Nagy Elemér Kár oly]

Dear Ben,

Thank you, the fix works for me, both Sun Fires (X2200M2 and X4200M2) boot with 
3.16.51-3~a.test (2017-12-11).

Best wishes:
Elemér

Bug#883938: Sun Fire X4200 M2 Xen

[Dr. Nagy Elemér Kár oly]

Hi,

The non-booting machines have multiple CPUs:
 * X4200M2: 2 AMD 2220, no Xen, LVM
 * X2200M2: 2 AMD 2347HE

The booting machine has multiple CPUs as well, but Xen is configured to give 
only 1 vCPU to Doms.
 * X4200M2: 2 AMD 2220, Xen

The freezing machine might have a HW problem or might be hit by Debian bug 
#880554 as even after downgrading all DomU and 
Dom0 kernels, the freeze still occurs, even though it boots.

Elmar

Bug#883938: Sun Fire X4200 M2 Xen

[Dr. Nagy Elemér Kár oly]

Hi,

Update: probably reproduced the bug in Xen on a Sun Fire X4200 M2 ;(

After 4.5 hours, it froze so hard that I could not power it off via the iLOM, 
even Num Lock wouldn't work. After 
rebooting, lock-ups occurred in about 5-30 minutes. There is nothing in the 
syslog.

After downgrading the Dom0+Xen kernel, the problem persisted.

Downgraded all Dom0 kernels as well, waiting for next lockup :I

Elmar

Bug#883938: Sun Fire X4200 M2 too

[Dr. Nagy Elemér Kár oly]

Hi,

Reproduced it on a Sun Fire X4200 M2 too, screenshot attached.

Could we increase the severity to critical like Debian bug #883294? It downed a 
production server ;(

Downgrading to "3.16.43-2+deb8u5 (2017-09-19)" fixed it.

Elmar