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Firmware / Re: experience updating TalosII firmware
« on: March 22, 2021, 11:07:43 pm »
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257
GPU Compute / Accelerators / Re: AMD Radeon RX 6800 / 6900 (Big Navi) sales strategy
« on: March 08, 2021, 03:49:35 pm »
Good grief, that's exorbitant.
258
General Discussion / Re: Samsung PRO 980 1TB NVMe is working flawlessly
« on: March 07, 2021, 01:55:57 pm »
They'd still need PHBs to attach them to, and there is only a fixed number of PCIe lanes per processor. If you want oodles of NVMe, the big T2 (with both CPU sockets populated) is really your only option; everything else is a tradeoff. This T2 has two NVMe devices, plus video card, SATA (for the optical drives) and FireWire.
259
Operating Systems and Porting / Re: [NEWS] Fedora 33 is out
« on: February 21, 2021, 10:52:08 am »
What do you have installed in your system? On my vanilla Blackbird (RAM, SATA SSD and BD-ROM, BMC framebuffer), I've never had an issue with Fedora installation or upgrades, so it could be hardware.
260
Operating Systems and Porting / Re: Compiling a new kernel for debian
« on: February 21, 2021, 10:50:41 am »
What happens when you try to? What do you see in dmesg?
261
Applications and Porting / Re: Zoom - errors about audio, video not supported
« on: February 20, 2021, 11:23:43 am »
I got your other E-mail. I'll have a look later today (working this weekend).
262
Operating Systems and Porting / Re: Fedora 35 (was F-34): going to 4k page size? Help needed
« on: February 20, 2021, 11:23:23 am »
@pocock is right; I've seen such packages. It may come down to marking them outright or submitting patches for them to check at runtime.
I'm loathe to see 64K go away completely because there's a reason for its existence even though it's not relevant to many of us. More importantly, however, I guarantee IBM won't let it, because the big systems that pay the bills all use it, so whatever we can do to get it to coexist won't be fighting institutional inertia.
I'm loathe to see 64K go away completely because there's a reason for its existence even though it's not relevant to many of us. More importantly, however, I guarantee IBM won't let it, because the big systems that pay the bills all use it, so whatever we can do to get it to coexist won't be fighting institutional inertia.
263
Applications and Porting / Re: Zoom - errors about audio, video not supported
« on: February 17, 2021, 06:32:20 pm »
I'll have a look at this this evening, but assuming there is an issue, I can't really debug this myself because of the nature of my firewall.
264
Applications and Porting / Re: QEMU accel=kvm not able to boot guest Mac OS X
« on: February 17, 2021, 06:26:21 pm »
I've seen that with Tiger updates. I think there is some glitch or inefficiency with supervisor level code (which makes sense with KVM-PR). I've had the best luck doing installs with TCG instead of KVM, which is most reliable, and then switching back.
Also note right now that as long as we advertise to the OS as a G4/7410, it will select the wrong dcbz size, which has memory impacts. I have code to monkeypatch the operating system but this is not suitable for mainline KVM. We could monkeypatch the kernel permanently in the disk image but this would have to be after all your updates are done.
The definitive solution is to advertise to the OS we're a G5, and then the right cache line size is used. However, this locks up the computer right now ...
Also note right now that as long as we advertise to the OS as a G4/7410, it will select the wrong dcbz size, which has memory impacts. I have code to monkeypatch the operating system but this is not suitable for mainline KVM. We could monkeypatch the kernel permanently in the disk image but this would have to be after all your updates are done.
The definitive solution is to advertise to the OS we're a G5, and then the right cache line size is used. However, this locks up the computer right now ...
265
General OpenPOWER Discussion / Re: Share your machine with the community through the effort by the Kernel.Cafe
« on: February 16, 2021, 03:39:19 pm »
My personal network security requirements are a concern for offering my own hardware to the project, but I like this idea.
266
Operating Systems and Porting / Re: Fedora 35 (was F-34): going to 4k page size? Help needed
« on: February 16, 2021, 03:36:24 pm »
I think what would be a nice interim option is a Copr for 4K kernels. I've tried to do one of my own, but it's not building with the official Fedora method yet, and I'd like to work the bugs out of that method before making a Copr for it (Dan Horak and I had some discussion about it). Is someone already doing this?
For the record, though, I wholeheartedly support this. I'm curious what packages have 64K dependencies.
For the record, though, I wholeheartedly support this. I'm curious what packages have 64K dependencies.
267
Applications and Porting / Re: QEMU accel=kvm not able to boot guest Mac OS X
« on: February 12, 2021, 05:03:31 pm »
That happens if you have threads bound across CPUs. I wonder if your taskset didn't stick or something.
268
Talos II / Re: Advice for installing OS via BMC?
« on: February 05, 2021, 10:37:02 am »
@SiteAdmin is Raptor, or at least someone on their technical staff.
It looks like you're doing this through the OpenBMC web interface?
It looks like you're doing this through the OpenBMC web interface?
269
Firmware / Re: [Events] Talk about coreboot opensource BIOS on POWER + vBeer online party!
« on: February 04, 2021, 12:39:44 pm »
Where does this fit into the boot sequence? Do you have a link for more about this?
270
Operating Systems and Porting / Re: kernel config: page size 4k vs 64k
« on: February 04, 2021, 12:38:30 pm »
cchincz, as MPC7500 correctly points out, they are both 4-core CPUs -- the "16 CPUs" are an artifact of SMT -- and optimization is still a problem for some programs. This is improving slowly. For example, we now have better SIMD in Firefox and in other media packages.
