Bug 198667

Summary:	Linux version 4.15 not supported on Xen platform
Product:	Virtualization	Reporter:	Mateusz Klatt (mateusz)
Component:	Xen	Assignee:	virtualization_xen
Status:	NEW ---
Severity:	blocking
Priority:	P1
Hardware:	Intel
OS:	Linux
Kernel Version:	4.15.1-gentoo	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	Successful boot Crashed boot Successful boot kernel-config-x86_64-4.15.1-gentoo

Description Mateusz Klatt 2018-02-04 16:36:58 UTC

It Ooops

Booting with clearcpuid=448 helps

Did not keep logs, but it was about 

https://elixir.free-electrons.com/linux/v4.2/source/drivers/hwmon/coretemp.c#L690
https://elixir.free-electrons.com/linux/v4.2/source/arch/x86/include/asm/cpufeature.h#L190
https://elixir.free-electrons.com/linux/v4.2/ident/create_core_data
http://elixir.free-electrons.com/linux/v4.9/ident/cpuhp_thread_fun
RIP: coretemp_cpu_online+0xfa/0x1a0
RIP: coretemp_cpu_online+0xfa/0x1a0 RSP: ffffc90000273e40
Oops: 0002 [#1] create_core_data
Oops: 0002 [#1] PREEMPT SMP NOPTI




rotterdam ~ # cat /proc/version
Linux version 4.15.1-gentoo (root@server) (gcc version 6.4.0 (Gentoo 6.4.0-r1 p1.3)) #1 SMP PREEMPT Sun Feb 4 10:06:24 GMT 2018
rotterdam ~ # cat /proc/cmdline
root=/dev/xvda1 ro console=hvc0 earlyprintk=xen nomodeset loglvl=all guest_loglvl=all clearcpuid=448
rotterdam ~ # cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 44
model name      : Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz
stepping        : 2
microcode       : 0x13
cpu MHz         : 2400.243
cache size      : 12288 KB
physical id     : 1
siblings        : 2
core id         : 1
cpu cores       : 1
apicid          : 35
initial apicid  : 35
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
wp              : yes
flags           : fpu de tsc msr pae cx8 apic sep cmov pat clflush mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl cpuid pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 popcnt aes hypervisor lahf_lm retpoline rsb_ctxsw ida arat
bugs            : null_seg cpu_meltdown spectre_v1 spectre_v2
bogomips        : 4800.36
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:

Comment 1 Mateusz Klatt 2018-02-04 20:38:17 UTC

Created attachment 273989 [details]
Successful boot

Comment 2 Mateusz Klatt 2018-02-04 20:39:04 UTC

Created attachment 273991 [details]
Crashed boot

Comment 3 Mateusz Klatt 2018-02-04 20:50:32 UTC

Created attachment 273993 [details]
Successful boot

Comment 4 Mateusz Klatt 2018-02-04 20:57:45 UTC

Created attachment 273995 [details]
kernel-config-x86_64-4.15.1-gentoo

Comment 5 Mateusz Klatt 2018-02-04 22:29:50 UTC

Attached logs