On Tue, Oct 29, 2024 at 4:07 PM Zi Yan <ziy@xxxxxxxxxx> wrote:
>
> +tegra mailing list and maintainers
>
> On 29 Oct 2024, at 8:47, Jan Stancek wrote:
>
> > Hi,
> >
> > I'm seeing a regression on Nvidia IGX system, which no longer boots.
> >
> > bisect points at commit 767507654c22 ("arch_numa: switch over to numa_memblks").
> > It hangs very early, with 4k or 64k pages, with no kernel messages printed:
> >
> > EFI stub: Booting Linux Kernel...
> > EFI stub: Using DTB from configuration table
> > EFI stub: Exiting boot services...
> > <hangs here>
> >
>
> Is it possible to have earlycon output? It is hard to debug without any
> information except kernel fails to boot.
I know it was a long shot, so far I haven't had luck getting it to work.
>
> Since the previous commit boots and I assume both kernels are compiled
> with the same gcc toolchain, this should not be caused by the binuils
> bug in 2.42[1]. Is your binutils version 2.42?
Yes, both are compiled locally, with binutils 2.41
>
> Thanks.
>
>
> [1] https://sourceware.org/bugzilla/show_bug.cgi?id=31924
>
> > Here's a log from successful boot with previous commit:
> > https://people.redhat.com/jstancek/aarch64_numa_boot/console-log-good.txt
> > and config: https://people.redhat.com/jstancek/aarch64_numa_boot/config
> >
> > # lscpu
> > Architecture: aarch64
> > CPU op-mode(s): 32-bit, 64-bit
> > Byte Order: Little Endian
> > CPU(s): 12
> > On-line CPU(s) list: 0-11
> > Vendor ID: ARM
> > BIOS Vendor ID: NVIDIA
> > Model name: Cortex-A78AE
> > BIOS Model name: Not Specified Not Specified CPU @ 0.0GHz
> > BIOS CPU family: 257
> > Model: 1
> > Thread(s) per core: 1
> > Core(s) per cluster: 12
> > Socket(s): 1
> > Cluster(s): 1
> > Stepping: r0p1
> > CPU(s) scaling MHz: 100%
> > CPU max MHz: 1971.2000
> > CPU min MHz: 115.2000
> > BogoMIPS: 62.50
> > Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32
> > atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp uscat ilrcpc
> > flagm paca pacg
> > Caches (sum of all):
> > L1d: 768 KiB (12 instances)
> > L1i: 768 KiB (12 instances)
> > L2: 3 MiB (12 instances)
> > L3: 6 MiB (3 instances)
> > NUMA:
> > NUMA node(s): 1
> > NUMA node0 CPU(s): 0-11
> > Vulnerabilities:
> > Gather data sampling: Not affected
> > Itlb multihit: Not affected
> > L1tf: Not affected
> > Mds: Not affected
> > Meltdown: Not affected
> > Mmio stale data: Not affected
> > Reg file data sampling: Not affected
> > Retbleed: Not affected
> > Spec rstack overflow: Not affected
> > Spec store bypass: Mitigation; Speculative Store Bypass
> > disabled via prctl
> > Spectre v1: Mitigation; __user pointer sanitization
> > Spectre v2: Mitigation; CSV2, BHB
> > Srbds: Not affected
> > Tsx async abort: Not affected
> >
> > Regards,
> > Jan
>
>
> Best Regards,
> Yan, Zi
>
