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From: cosarara <cosa@cosarara.me>
To: 9front@9front.org
Subject: [9front] qemu kernel for arm64, detected memory
Date: Sun, 7 Jan 2024 13:07:54 +0100	[thread overview]
Message-ID: <515bcf9c-352e-4f2b-b0d9-86c26171fa8f@cosarara.me> (raw)

Running 9front on qemu-system-aarch64 (trying to follow the directions in commit dd79854239a8c):

qemu-system-aarch64 -M virt-2.12,gic-version=3 \
                     -cpu cortex-a57 -m 4G -smp 4 \
                     -bios u-boot/u-boot.bin \
                     -drive file=9front-10277.arm64.qcow2,if=none,id=disk \
                     -device virtio-blk-pci-non-transitional,drive=disk \
                     -nographic

u-boot correctly reports:

>   DRAM:  4 GiB

But then plan9:

>   ## Transferring control to Plan 9 (at address 40100000) ...
>   127 holes free
>   0x404c4000 0x429bd000 38768640
>   38768640 bytes free
>
>   Plan 9
>   timer frequency 62500000 Hz
>   cpu0: 1000MHz QEMU
>   127M memory: 41M kernel data, 86M user, 455M swap
>   [...]
>   cirno# cat /dev/swap
>   129220608 memory
>   4096 pagesize
>   9465 kernel
>   2993/22083 user
>   0/94644 swap
>   1556/22083 reclaim
>   1816176/1966560/36545820 kernel malloc
>   0/0/36545820 kernel draw
>   768/65568/16777216 kernel secret

So it seems it does not detect the full amount. I don't know if this is a know bug in the kernel.




             reply	other threads:[~2024-01-07 12:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-07 12:07 cosarara [this message]
2024-01-07 14:23 ` Jacob Moody
2024-01-07 15:47   ` cosarara

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