jellyfin media import sure takes a long time on a Xeon 1240L v5
i am sure some bro is going to let me know that the Xeon 1240L v5 is vulnerable to spectre
which, well, yes
it's a NAS at home, not a multi-tenant cloud node
@ariadne I feel like anymore if it turns on, it can be used for a NAS.
@bryanredeagle @ariadne my NAS is an n100 with 8 g of memory, so hard same.
(Works great for what I'm doing, which is not that much)
@ariadne is it even vulnerable to spectre if you enable mitigations, apply microcode updates, and disable SMT? my skylake desktop has
Vulnerabilities:
Gather data sampling: Vulnerable: No microcode
Ghostwrite: Not affected
Indirect target selection: Not affected
Itlb multihit: KVM: Mitigation: Split huge pages
L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT disabled
Mds: Mitigation; Clear CPU buffers; SMT disabled
Meltdown: Mitigation; PTI
Mmio stale data: Mitigation; Clear CPU buffers; SMT disabled
Old microcode: Not affected
Reg file data sampling: Not affected
Retbleed: Mitigation; IBRS
Spec rstack overflow: Not affected
Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl
Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Spectre v2: Mitigation; IBRS; IBPB conditional; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
Srbds: Mitigation; Microcode
Tsa: Not affected
Tsx async abort: Mitigation; TSX disabled
Vmscape: Mitigation; IBPB before exit to userspace
and the one thing is is vulnerable to (Gather data sampling) isn’t spectre. it’s Skylake-S rather than Skylake-DT but I expect it would be the same
@noisytoot tbh i didn't bother to check if it actually was or not
@ariadne not really buying that the rest are spectre-immune tbh
@ariadne jellyfin media import sure takes a long time everywhere.
@noisytoot @ariadne Why care unless untrusted software runs on it exfiltrating crypto keys?
Vulnerabilities must meet a potential attack scenario before they become a real problem.
@ariadne That actually has me starting to understand why hosting providers keep offering EOL CPUs as dedicated servers.
@alwayscurious yes for a lot of cases it is fine. the practical problems show up with multitenancy