Hi,
I only see 1 CPU core on Xen 4.9 when booted via grub instead of 8.
It's may be related to :
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=820807
- https://xenproject.atlassian.net/browse/XEN-42
It is the first server on which I have this problem.
I can confirm that :
- if I boot Debian througt grub, I see the 8 cores
- if I boot Xen through grub, I only see _one_ core
- if I boot Xen directly through EFI (using `efibootmgr`), I see the 8 cores
1. Do you know what happens ?
2. Do you need some logs ?
Regards,
Guillaume
# cat /proc/cpuinfo
model name : Intel(R) Xeon(R) CPU E3-1270 v6 @ 3.80GHz
microcode : 0x5e
flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat
clflush acpi mmx fxsr sse sse2 ht syscall nx lm constant_tsc
arch_perfmon rep_good nopl nonstop_tsc eagerfpu pni pclmulqdq monitor
est ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand
hypervisor lahf_lm abm 3dnowprefetch epb fsgsbase bmi1 hle avx2 bmi2
erms rtm rdseed adx clflushopt xsaveopt xsavec xgetbv1 dtherm ida arat
pln pts hwp hwp_notify hwp_act_window hwp_epp
# xl info
release : 4.9.0-5-amd64
version : #1 SMP Debian 4.9.65-3+deb9u2 (2018-01-04)
xen_version : 4.8.3-pre
# cat /etc/debian_version
9.3
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