Bug#883938: HP ProLiant DL360 Gen9

[Stephane Lapie]

One more bit of info if it helps.

I noticed that I had some ProLiant DL360 Gen9 servers that booted fine with
that version.
The main difference between the ones that failed booting had more CPU cores
detected than the ones that succeeded.
For reference, the successful one had 20, the failed one had 32.
Given the kernel panic seems to be scheduler related, are there any chances
this is an edge case for servers with tons of CPUs?

Cheers,
-- 
ラピー ステファン Lapie Stephane
株式会社朝日ネット システム部
AsahiNet, Inc. - System Division

Bug#883938: HP ProLiant DL360 Gen9

[Stephane Lapie]

Hi,

I also got some hardware refusing to boot with this bug :
HP ProLiant DL360 Gen9

The crash is instant, right after GRUB loads the kernel and initramfs.

Partial backtrace (re-typed from a KVM screen capture) :
[0.649289] Call Trace:
[0.649362]  [] ? sched_init_smp+0x398/0x452
[0.649437]  [] ? mutex_lock+0xe/0x2a
[0.649512]  [] ? put_online_cpus+0x23/0x80
[0.649587]  [] ? stop_machine+0x2c/0x40
[0.649662]  [] ? kernel_init_freeable+0xdd/0x1e1
[0.649738]  [] ? rest_init+0x80/0x80
[0.649813]  [] ? kernel_init+0xa/0xf0
[0.649888]  [] ? ret_from_fork+0x58/0x90
[0.649963]  [] ? rest_init+0x80/0x80
[0.650037] Code: c0 0f 85 46 05 00 00 48 8b 74 24 08 48 c7 c2 00 dd a6
81 bf ff ff ff ff e8 91 78 21 00 48 98 49 8b 56 10 48 8b 04 c5 a0 1e 8e 81
<48> 8b 14 10 b8 01 00 00 00 49 89 54 24 10 f0 0f c1 02 85 c0 75
[0.653853] RIP  [] build_sched_domains+0x72d/0xcf0
[0.653986]  RSP 
[0.654061] ---[ end trace 5d1a1ddbcedef31d ]---
[0.654145] Kernel panic - not syncing: Attempted to kill init! exit
code=0x000b
[0.654145]
[0.654252] ---[ end Kernel panic - not syncing: Attempted to kill init!
exit code=0x000b
[0.654252]

I could only fix the issue by downgrading.
It should be noted that even after the downgrade, it reports this error, if
there is any chance of relevance :
[0.059876] [Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR
38d is 330)

Cheers,
-- 
ラピー ステファン Lapie Stephane
株式会社朝日ネット システム部
AsahiNet, Inc. - System Division