Hi,I'm the maintainer of cfarm{420,421,422} and I noticed that cfarm421 spits out these in the kernel log message buffer:
================8<=============8<===============[407044.868840] __vm_enough_memory: pid: 1547477, comm: qemu-aarch64, not enough memory for the allocation [407044.873072] __vm_enough_memory: pid: 1547477, comm: qemu-aarch64, not enough memory for the allocation [407793.227963] __vm_enough_memory: pid: 1629843, comm: qemu-loongarch6, not enough memory for the allocation [407793.252490] __vm_enough_memory: pid: 1629843, comm: qemu-loongarch6, not enough memory for the allocation [408951.450373] __vm_enough_memory: pid: 1782006, comm: qemu-ppc64, not enough memory for the allocation [408951.455591] __vm_enough_memory: pid: 1782006, comm: qemu-ppc64, not enough memory for the allocation [409186.357363] __vm_enough_memory: pid: 1813298, comm: qemu-ppc64le, not enough memory for the allocation [409186.361280] __vm_enough_memory: pid: 1813298, comm: qemu-ppc64le, not enough memory for the allocation [409864.075096] __vm_enough_memory: pid: 1873876, comm: qemu-riscv64, not enough memory for the allocation [409864.084699] __vm_enough_memory: pid: 1873876, comm: qemu-riscv64, not enough memory for the allocation [410768.150482] __vm_enough_memory: pid: 1934927, comm: qemu-sparc64, not enough memory for the allocation [410768.156067] __vm_enough_memory: pid: 1934927, comm: qemu-sparc64, not enough memory for the allocation [411410.679436] __vm_enough_memory: pid: 1964674, comm: qemu-x86_64, not enough memory for the allocation [411410.684506] __vm_enough_memory: pid: 1964674, comm: qemu-x86_64, not enough memory for the allocation [430615.068394] __vm_enough_memory: pid: 2110282, comm: qemu-aarch64, not enough memory for the allocation [430615.083721] __vm_enough_memory: pid: 2110282, comm: qemu-aarch64, not enough memory for the allocation [433503.627242] __vm_enough_memory: pid: 2347231, comm: qemu-ppc64, not enough memory for the allocation [433503.631411] __vm_enough_memory: pid: 2347231, comm: qemu-ppc64, not enough memory for the allocation [433935.278186] __vm_enough_memory: pid: 2383232, comm: qemu-ppc64le, not enough memory for the allocation [433935.283613] __vm_enough_memory: pid: 2383232, comm: qemu-ppc64le, not enough memory for the allocation [435267.994912] __vm_enough_memory: pid: 2456518, comm: qemu-sparc64, not enough memory for the allocation [435268.002203] __vm_enough_memory: pid: 2456518, comm: qemu-sparc64, not enough memory for the allocation [436006.040243] __vm_enough_memory: pid: 2491131, comm: qemu-x86_64, not enough memory for the allocation [436006.061130] __vm_enough_memory: pid: 2491131, comm: qemu-x86_64, not enough memory for the allocation [449685.944334] __vm_enough_memory: pid: 3055522, comm: tw2494, not enough memory for the allocation [449685.948704] __vm_enough_memory: pid: 3055522, comm: tw2494, not enough memory for the allocation [450558.392384] __vm_enough_memory: pid: 3091900, comm: tw2494, not enough memory for the allocation [450558.396205] __vm_enough_memory: pid: 3091900, comm: tw2494, not enough memory for the allocation
================8<=============8<=============== root@cfarm421:~# free -htotal used free shared buff/cache available Mem: 64Gi 4.5Gi 20Gi 1.6Mi 40Gi 60Gi
Swap: 0B 0B 0B ================8<=============8<===============There is no log about OOM killer. Does cfarm421 need more RAM? Doesn't look like it though, the messages troubled me. I may be able to add another 64GB to cfarm421 (via qemu VM guest RAM hotplug), hopefully without the host crashes and burns.
PS: if anyone needs a dump of dmesg on cfarm420~422, PM me anytime. I see lines like "dosbox-x[pid]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set" or "segfault at ... likely on CPU ... (core ..., socket ...)"
-- Jing Luo About me: https://jing.rocks/about/ PGP Fingerprint: 4E09 8D19 00AA 3F72 1899 2614 09B3 316E 13A1 1EFC
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